Relevant bibliographies by topics / Expressive features

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Expressive features'

Author: Grafiati
Published: 5 June 2025
Last updated: 24 June 2025

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Journal articles on the topic "Expressive features"

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Borisov, Mirko. "Expressive features of topographic maps." Glasnik Srpskog geografskog drustva 91, no. 3 (2011): 139–52. http://dx.doi.org/10.2298/gsgd1103139b.

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In the field of official topographic cartography Serbia has a long tradition which origin dates from Princedom of Serbia. On the territory of Serbia and former federal state, there have been conducted several surveys in the field, of which the last one was conducted in the period from 1947 to 1967. Based on that survey, the entire area of ex state was covered with topographic maps, but some of them are interested for example at the scale from 1:25 000 up to 1:100 000. That maps are analyzed in this article, specially their characteristics.
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Pertsov, Mykyta. "Flute: Design, Technical and Expressive Features." Bulletin of KNUKiM. Series in Arts, no. 43 (December 22, 2020): 109–13. https://doi.org/10.31866/2410-1176.43.2020.220107.

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The purpose of the article is to analyse the current developments in the flute construction, outline the essential changes associated with its technical and expressive features, and the prospects for its application in musical culture; to consider the samples of flute modification that were carried out after the T. Boehm’s reform. The research methodology consists in using historical and analytical approaches to highlight the features of flute development, as well as a comparative method in the analysis of changes in the flute construction. The scientific novelty of the study lies in the fact that for the first time it outlines various modern modifications of the flute in the historical development of musical culture, and also emphasizes their technical and expressive features considering that modern changes in the flute construction have been insufficiently explored in Ukrainian art studies, in fact, different models of the instrument are only being introduced into the practice of performance. It is noted that changes in the instrument construction are closely connected with the practice of composing, stimulating further strategies for its development. Conclusions. The study shows that the flute is an instrument that has undergone significant changes in its construction. The desire to follow the latest trends in the field of performing and composing art results in the need for further experiments in its construction. The instrument is updated by adding certain devices (microphones), equipment (valves, membranes, keys), and this allows expanding the flute’s performing possibilities. A number of contemporary composers write compositions for the updated flute. The use of these instruments is a very promising direction in Ukraine. Knowledge of the technical and expressive possibilities of the flute can provide significant informative material that would be useful for both performers and composers.
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Amonovich, Gochbakarov Azat. "Methods of Expressing the Artistic Features of Musical Works on The Rubab Prima Instrument." International Journal of Pedagogics 5, no. 4 (2025): 241–42. https://doi.org/10.37547/ijp/volume05issue04-63.

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This article analyzes the artistic possibilities of the rubab prima instrument in expressing musical works and the methods of their expression. The work highlights the possibilities of expressing the content and emotional state of the work through the timbre, dynamics, agogy, and articulation features of the rubab prima. At the same time, the performance technique and specific methodological approaches in the interpretation process are analyzed. The article reveals the elements of musical speech characteristic of the rubab prima and their importance in enhancing the artistic effect in musical works. Based on the results of the analysis, ways to achieve artistic and expressive coherence in the performance of the instrument are recommended.
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Kamilova, Natavan Abdulla. "Linguistic features of the novel "Ali and Nino"." Scientific Bulletin 2 (2021): 26–31. http://dx.doi.org/10.54414/niyi4983.

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This paper studied the novel G. Said in the use of linguistic resourcesand identify their functional characteristics. Revealed that in the novel «Ali and Nino» occurring most expressive means are epithets. The second highest number of use metaphor. In third place phraseology, also justified the use of the means of expression in the works.
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Tsimokh, Nataliia, and Anastasiia Soroka. "Features of Receptions Infotehnament." Bulletin of Kyiv National University of Culture and Arts. Series in Audiovisual Art and Production 1, no. 2 (2018): 30–39. https://doi.org/10.31866/2617-2674.2.2018.151788.

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Purpose of the study is to find out the features of the origins, historical evolution of modern trends in the development of infotinment. Analyze literature and sources related to the emergence of the concept of "infotehnament". Analyze the classification of infotment techniques and identify the external and internal links between them. Explore the use of infotehnology techniques, and to describe the prospects for their development on Ukrainian television. Research methodology. The proposed publication implies the use of a specific set of research methods. The bibliographic descriptive method made it possible to understand how infotehnum is an investigated and actual phenomenon of the present. The method of observation made it possible to identify the preconditions for the emergence of infotment and the process of its formation and development. Using the analytical method, the characteristics of the modern stage of the functioning of the informational and journalistic segment on the Ukrainian television are highlighted. Scientific novelty the obtained results is that for the first time the details of the implementation of infotehnation on the modern Ukrainian informational and journalistic television have been analyzed in detail, the structure analysis of signs, manifestations and techniques of infotehnum has been carried out, the process of transformation of the information-analytical segment of TV into informational and journalistic is theoretically substantiated. Conclusions. In the course of the study, there were identified causes that contributed to the emergence and development of features of infotment techniques. On the basis of consideration of historiography and source base, it was found that the problem of infotment in Ukraine is poorly understood and has not yet been fully addressed. Analysis of this topic makes it possible to argue that infotehnament - a way to feed news in an entertaining form, which is achieved through various techniques. This aspect is useful for every journalist, since the use of special technologies makes it possible to influence not the mind but the emotional state of the viewer.
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S.Volskaya, Anastasia, Olga A. Chupryakova, Svetlana S. Safonova, and Gulnaz T. Karipzhanova. "Semantico-Functional Features of Expressive Derivatives in the Artistic Discourse of V. Makanin." International Journal of Engineering & Technology 7, no. 4.36 (2018): 983. http://dx.doi.org/10.14419/ijet.v7i4.36.24936.

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The paper is devoted to the study of semantic and functional features of expressive derivatives, both usual and occasional, in the artistic gist of the novel “Asan” by V. Makanin, as well as their role in structuring the individual-author’s linguistic picture of the world. It has been proven that the derivation of expressive lexemes is the result of improvisation according to established patterns, and that the formation of occasional substantives, adjectives and verbs involved the main methods of the Russian word derivation. It is noted that in the artistic discourse of V. Makanin, in the substantive word-formation, suffixation plays a leading role, which takes place in the sphere of abstractness and includes such lexical-semantic groups as expressive substantives with the meaning of a person, expressive substantives with the meaning of abstracted action or an abstract feature with connotation, as a rule, negative and/or reduced colloquial connotation. While in the sphere of adjectival and verbal word formation, confixation and prefixation, as the formation of expressiveness, is most productive. The paper considers the phenomenon of semantic word formation, describes the formation of semantic derivatives, including in the field of occasional vocabulary. Expressive derivatives in the artistic discourse of V. Makanin are a bright sign of his individual style, an important means of expressing the world view and outlook of the writer.
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Oybek, Haytbayev. "STYLISTIC FEATURES OF UZBEK SYNONYMOUS PHRASES IN FICTION." International Journal Of Literature And Languages 4, no. 11 (2024): 18–24. http://dx.doi.org/10.37547/ijll/volume04issue11-05.

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The article is discussed the stylistic features of synonymous phrases in the Uzbek language in fiction. Writers and poets have demonstrated the skillful use of expressive means to increase their imagery and effectiveness in describing heroes.
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G'ofurova, Sarvaraxon, and Muslima Ibrohimova. "THE ROLE OF PHONETIC EXPRESSIVE MEANS AND STYLISTIC DEVICES IN ENHANCING LITERARY EXPRESSION: A FOCUS ON ONOMATOPOEIA." SYNAPSES: INSIGHTS ACROSS THE DISCIPLINES 1, no. 4 (2024): 193–96. https://doi.org/10.5281/zenodo.14218158.

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<em>This paper explores the concept of phonetic expressive means and their application in literary works, with a particular focus on onomatopoeia. Phonetic expressive means are tools that writers use to convey meaning, emotion, and atmosphere through sound patterns. Stylistic devices, such as alliteration, assonance, and onomatopoeia, are essential in shaping a text&rsquo;s emotional and aesthetic appeal.</em><em> </em>
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Lee, Jung-Eun, and Min-Jung Chang. "Expressive Features of Hanbok Design in Online Games." Journal of Korean Traditional Costume 25, no. 1 (2022): 99–110. http://dx.doi.org/10.16885/jktc.2022.03.25.1.99.

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Lee, Jung-Eun, and Min-Jung Chang. "Expressive Features of Hanbok Design in Online Games." Journal of Korean Traditional Costume 25, no. 1 (2022): 99–110. http://dx.doi.org/10.16885/jktc.2022.03.25.1.99.

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Dissertations / Theses on the topic "Expressive features"

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Choudhury, Tanzeem Khalid 1975. "FaceFacts : study of facial features for understanding expression." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/61109.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 1999.<br>Includes bibliographical references (p. 79-83).<br>by Tanzeem Khalid Choudhury.<br>S.M.
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Moore, Stephen. "The effects of features and pose on facial expression recognition." Thesis, University of Surrey, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540969.

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Kataoka, Yoshiki. "HER2 expression and its clinicopathological features in resectable gastric cancer." Kyoto University, 2013. http://hdl.handle.net/2433/174804.

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Линдін, Микола Сергійович, Николай Сергеевич Лындин, Mykola Serhiiovych Lyndin, et al. "Peculiar features of CEACAM1 and E-cadherin expression in the uterus." Thesis, Springer, 2018. http://essuir.sumdu.edu.ua/handle/123456789/75152.

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Background & Objective: The aim of our study was to characterize the expression pattern of сarcinoembryonic antigen related cell adhesion molecule 1 (CEACAM1) and E-cadherin in normal, hyperplastic and tumour tissues of the uterine, and to determine the potential correlation between these two adhesion molecules.
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Kehrein, Kirsten. "Organization of mitochondrial gene expression in yeast : Specific features of organellar protein synthesis." Doctoral thesis, Stockholms universitet, Institutionen för biokemi och biofysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-107568.

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Mitochondria contain their own genetic system, encoding key subunits of the oxidative phosphorylation system. These subunits are expressed by an organelle-specific gene expression machinery. This work revealed a number of fundamental aspects of mitochondrial gene expression and provides evidence that this process is organized in a unique and organelle-specific manner which likely evolved to optimize protein synthesis and assembly in mitochondria. Most importantly, improving the experimental handling of ribosomes we could show that mitochondrial ribosomes are organized in large assemblies that we termed MIOREX complexes. Ribosomes present in these complexes organize gene expression by recruiting multiple factors required for post-transcriptional steps. In addition, we could reveal mechanisms by which ribosome-interactor complexes modulate and coordinate the expression and assembly of the respiratory chain subunits. For example we showed that the Cbp3-Cbp6 complex binds to the ribosome in proximity to the tunnel exit to coordinate synthesis and assembly of cytochrome b. This location perfectly positions Cbp3-Cbp6 for direct binding to newly synthesized cytochrome b and permits Cbp3-Cbp6 to establish a feedback loop that allows modulation of cytochrome b synthesis in response to assembly efficiency. Likewise the interaction of the membrane-anchor proteins Mba1 and Mdm38 with the tunnel exit region enables them to participate in the translation of the two intron-encoding genes COX1 and COB in addition to their role in membrane insertion.  In summary, work presented in this thesis shows that mitochondrial gene expression is a highly organized and regulated process. The concepts and technical innovations will facilitate the elucidation of many additional and important aspects and therefore contribute to the general understanding of how proteins are synthesized in mitochondria.<br><p>At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 4: Manuscript.</p>
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Ersotelos, Nikolaos. "Highly automated method for facial expression synthesis." Thesis, Brunel University, 2010. http://bura.brunel.ac.uk/handle/2438/4524.

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The synthesis of realistic facial expressions has been an unexplored area for computer graphics scientists. Over the last three decades, several different construction methods have been formulated in order to obtain natural graphic results. Despite these advancements, though, current techniques still require costly resources, heavy user intervention and specific training and outcomes are still not completely realistic. This thesis, therefore, aims to achieve an automated synthesis that will produce realistic facial expressions at a low cost. This thesis, proposes a highly automated approach for achieving a realistic facial expression synthesis, which allows for enhanced performance in speed (3 minutes processing time maximum) and quality with a minimum of user intervention. It will also demonstrate a highly technical and automated method of facial feature detection, by allowing users to obtain their desired facial expression synthesis with minimal physical input. Moreover, it will describe a novel approach to the normalization of the illumination settings values between source and target images, thereby allowing the algorithm to work accurately, even in different lighting conditions. Finally, we will present the results obtained from the proposed techniques, together with our conclusions, at the end of the paper.
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Carballo, Amador Manuel. "Altering the solubility of recombinant proteins through modification of surface features." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/altering-the-solubility-of-recombinant-proteins-through-modification-of-surface-features(a2a7e7d5-3cc5-4f0c-924e-61bb817c0f3e).html.

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Protein solubility plays an important role whether for biophysical and structural studies, or for production and delivery of therapeutic proteins. Poor solubility could lead to protein aggregation, which is an undesired physicochemical mechanism at any stage of recombinant proteins production. To date, more than half of all recombinant therapeutic proteins are produced in mammalian cells, mainly due to the high similarity of the final product to human protein structures. However, poor secretion can occur, due to misfolded proteins or aggregates leading to cellular stress and proteolysis. Another widely-used expression system is E. coli, which can offer a cost-efficient alternative. This system has an important limitation, since proteins tends to form insoluble protein aggregates in the cytoplasm upon heterologous overexpression. Several strategies are being implemented to improved soluble expression, ranging from culture conditions to solubility enhancing tags. However, there is no universal approach or technology that solves protein aggregation. In this thesis two recently published hypotheses from our group have been applied. One stated that soluble expression of proteins was inversely correlated with the size of the largest positively-charged patch on the protein surface. The second hypothesis (of protein solubility), arose from the finding that the relative content of lysine and arginine residues separated E. coli proteins by solubility. Both hypotheses arose from a study of an extensive dataset of experimental solubilities determined for cell-free expression of E. coli proteins. In combination with other widely used strategies, such as lowering expression temperature and inducer concentration, decreasing non-charged (hydrophobic) patches and addition of helical capping for increasing stability, a rational understanding for directed alteration of solubility in a variety of recombinant proteins has been explored. This includes three protein models to test: (i) recombinant human erythropoietin (rHuEPO) (one of the top selling therapeutics) (ii) recombinant 6-Phosphofructo-2-Kinase/fructose-2,6-bisphosphatase (rPFKFB3) (a product for which over-expression has been sought for characterisation and insight into possible cancer therapy) and (iii) a set of three selected E. coli proteins containing high ratios of lysines to arginines: thioredoxin-1 (TRX), cold shock-like protein cspB (cspB), and the histidine-containing phosphocarrier protein (HPr). It was found that single or multiple point mutations (changing amino acids from positive to negative charge or vice versa; or lysines to arginines) verified the predicted effect on rHuEPO, rPFKFB3, TRX, cspB, and HPr solubility (experimentally defined as the distribution between soluble and total fractions) for expression in E. coli. In addition, the redesigned set of rHuEPO transiently expressed in HEK 293-EBNA cells, suggesting that positively-charged patch size may also influence protein secretion. Further application of these computational and experimental approaches could provide a valuable tool in the design and engineering of proteins, with enhanced solubility, stability and secretion.
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Cui, Chen. "Adaptive weighted local textural features for illumination, expression and occlusion invariant face recognition." University of Dayton / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1374782158.

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Loveless, Ian. "Binary Classification With First Phase Feature Selection forGene Expression Survival Data." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555444873531262.

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Xue, Mingliang. "Discriminant feature extraction and selection for person-independent facial expression recognition." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/2159.

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This thesis is to develop new facial expression recognition techniques based on 2D/3D images or videos, with the purpose to improve the recognition efficiency and accuracy of the current state-of-art. A fully automatic facial expression recognition system is designed, including real-time landmark detection, spatio-temporal feature extraction, hierarchical classification, and most discriminant facial regions identification for expression recognition. In general, the proposed system improved the facial expression recognition state-of-art.
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Books on the topic "Expressive features"

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Pilyasova, Olimpiada, and Yuliya Smirnova. Children's literature: theory and practice of expressive reading. INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/1864380.

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The textbook covers theoretical and applied issues of teaching children to read literature based on the material of works of Russian and foreign literature, including folklore. The content of the book introduces the reader to the world of children's literature, introduces the genre features of the works of the circle of children's readers and the most famous authors.&#x0D; The publication is a workshop on expressive reading, which is one of the components of students' speech training. The book recreates the world of writers primarily through the word and a kind of artistic thinking. Numerous quotations from works of fiction fulfill this task.&#x0D; The textbook describes the stages of development of genres of oral folk art: fairy tales, songs, jokes. Examples with distinctive features of "Christian fantasy" and "occult fantasy" are given. The works of Russian poets are briefly described: K.I. Chukovsky, V.A. Zhukovsky, A.S. Pushkin and other authors.&#x0D; The content of the manual meets the requirements of the federal state educational standards of secondary vocational education of the latest generation.&#x0D; The publication is distinguished by the completeness of the presentation of educational material as much as possible in the textbook, a high scientific and theoretical level and is intended for students of secondary vocational education, high school students and anyone interested in the history of world literature.
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Darris, Dobbs, ed. Animating facial features and expression. Charles River Media, 1999.

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Vilimonovic, Larisa. Structure and Features of Anna Komnene’s Alexiad. Amsterdam University Press, 2018. http://dx.doi.org/10.5117/9789462980389.

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The Alexiad, written in the twelfth century by a Byzantine princess, Anna Komnene, tells the story of the Byzantine Empire during the reign of her father, offering accounts of its political and military history, including its involvement with the First Crusade. Structure and Features of Anna Komnene’s Alexiad: Emergence of a Personal History introduces new methods of research for studying the Alexiad, aiming primarily at analysing Anna Komnene’s literary expression. The book’s approach focuses mainly on the author, the subject, the structure and the inner stylistic features, as well as the genre itself. The result is a substantially new outlook on the main Byzantine historiographical work of the twelfth century.
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Potaev, Georgiy. Rules for planning, designing, and managing urban development. INFRA-M Academic Publishing LLC., 2025. https://doi.org/10.12737/2023027.

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The textbook outlines methodological provisions and provides practical recommendations on the transformation and development of modern cities; examines the fundamentals of the philosophy of modern urban planning, trends and features of the modern period of urban development, including issues of reformatting the urban environment and creating an aesthetically expressive architectural appearance of cities. The materials included in the manual are based on an analysis of the best buildings of the leaders of world architecture and urban planning. A large number of examples and original photographs are presented. Meets the requirements of the latest generation of federal state educational standards for higher education. For students studying in the fields of Urban Planning, Architecture, Urban Construction, Urban and Regional Planning, State and Municipal Management, university professors, decision makers in the field of urban development management, and anyone interested in modern urban planning. Photos, diagrams and plans from the personal archive of G.A. Potaev.
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Volodina, Elena. Materials science: Design, architecture: in 2 t. Volume 1. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1039908.

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The first volume of the textbook describes the main groups of building and finishing materials and products, their structure and properties.&#x0D; Special attention is paid to the actual finishing materials, as well as their ecological and aesthetic features, which are important for creating an expressive subject-spatial environment.&#x0D; The well-thought-out structure of the book allows you to successfully master the discipline in different formats of vocational education: secondary vocational, bachelor's, master's, professional retraining. The volume of the studied material is determined by the teacher in accordance with the requirements of the Federal State Educational Standard of the latest generation and the work program.&#x0D; It is intended for students in the areas of training "Design", "Environment Design", "Architectural environment Design", "Architecture", "Architectural design". It will also be useful as a reference for practicing designers, architects, restorers, builders, teachers of materials science and a wide range of people interested in this field of knowledge.
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Panteleev, Andrey, and Anastasija Inos. The Language of Advertising: Graphic, Grammar and Pragmatic Aspects. Publishing Center RIOR, 2021. http://dx.doi.org/10.29039/02043-2.

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This monograph deals with the problem of functioning peculiarities of graphic expressive means and grammar means in the language of modern Russian advertising. This research work treats the advertising discourse as a composite indirect speech act. Active use of adverbial modifiers of manner — deverbatives, elliptical and indefinite personal one-member sentences is characteristic of modern advertising texts. A most distinguishing feature of a modern advertising text is a mixture of Cyrillic and Latin fonts that contributes to the manifestation of an expressive potential of the application. &#x0D; The monograph is aimed at students of Philology, students major in Management and Marketing, masters, postgraduates, staff of higher educational establishments and all those who are interested in the Russian language.
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Panteleev, Andrey, and Anastasija Inos. Advertising language: Graphics. Grammar. Pragmatics. Second edition. 2nd ed. Publishing Center RIOR, 2024. http://dx.doi.org/10.29039/02126-2.

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The monograph is devoted to the study of the specifics of the functioning of multilevel elements of language in the texts of modern Russian advertising. The advertising discourse in this book is considered as a complex indirect speech act. The modern advertising text is characterized by the active use of circumstantial determinants — deverbatives, elliptical, definitely personal and nominative one-member sentences. A striking feature of the modern advertising text is the graphic and orthographic foreign language, the contamination of Cyrillic and Latin elements, which contributes to the realization of the expressive possibilities of the application.&#x0D; The book is addressed to students of philological faculties, faculties of management and marketing, undergraduates, graduate students, teachers of higher education, as well as all those who are interested in the Russian language.
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Fedotova, Yuliya. Constitutional and legal provision of national security of the Russian Federation. INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/986734.

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The textbook is devoted to the constitutional-legal framework (the concept, historical features of formation and development of constitutional system of Russia, its political, socio-economic and spiritual foundations, the concept, essence, content and purpose of the constitutional security as a legal expression of national security) and the system of ensuring national security of the Russian Federation, expressed in the state (consisting of activities of public authorities and other state authorities in ensuring national security) and private (characterized by the participation of citizens and their associations and other organizations in ensuring national security) of its subsystems.&#x0D; Meets the requirements of Federal state educational standards of higher education of the last generation.&#x0D; For students, graduates, teachers, professionals in the field of constitutional law and national security practitioners as well as for a wide circle of readers interested in issues of national security.
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Fedotova, Yuliya. Constitutional and legal support of the national security of the Russian Federation. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1865701.

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The textbook is devoted to the constitutional and legal basis (the concept, historical features of the formation and development of the constitutional system of Russia, its political, socio-economic and spiritual foundations, the concept, essence, content and purpose of constitutional security as a legal expression of national security) and the system of ensuring national security of the Russian Federation, expressed in the state (consisting of the activities of state bodies government and other state bodies to ensure national security) and non-state (characterized by the participation of citizens and their associations and other organizations in ensuring national security) its subsystems.&#x0D; Meets the requirements of the federal state educational standards of higher education of the latest generation.&#x0D; For students, postgraduates, teachers, specialists in the field of constitutional law and national security law, practitioners, as well as for a wide range of readers interested in the problems of ensuring national security.
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Language of the Face: Stories of Its Uniquely Expressive Features. MIT Press, 2023.

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Book chapters on the topic "Expressive features"

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Zainkó, Csaba, Márk Fék, and Géza Németh. "Expressive Speech Synthesis Using Emotion-Specific Speech Inventories." In Verbal and Nonverbal Features of Human-Human and Human-Machine Interaction. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-70872-8_17.

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Přibil, Jiří, and Anna Přibilová. "Application of Expressive Speech in TTS System with Cepstral Description." In Verbal and Nonverbal Features of Human-Human and Human-Machine Interaction. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-70872-8_15.

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Biswas, Kunal, Shivakumara Palaiahnakote, Umapada Pal, Sukalpa Chanda, and Xiao-Jun Wu. "A New Impressive and Expressive Features Based Model for Personality Traits Identification." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-78186-5_3.

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Haag, Kathrin, and Hiroshi Shimodaira. "Bidirectional LSTM Networks Employing Stacked Bottleneck Features for Expressive Speech-Driven Head Motion Synthesis." In Intelligent Virtual Agents. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-47665-0_18.

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Wayland, Jeremy, Russell J. Funk, and Bastian Rieck. "Characterizing Physician Referral Networks with Ricci Curvature." In Communications in Computer and Information Science. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-88346-0_1.

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Abstract Identifying (a) systemic barriers to quality healthcare access and (b) key indicators of care efficacy in the United States remains a significant challenge. To improve our understanding of regional disparities in care delivery, we introduce a novel application of curvature, a geometrical-topological property of networks, to Physician Referral Networks. Our initial findings reveal that Forman-Ricci and Ollivier-Ricci curvature measures, which are known for their expressive power in characterizing network structure, offer promising indicators for detecting variations in healthcare efficacy while capturing a range of significant regional demographic features. We also present apparent, an open-source tool that leverages Ricci curvature and other network features to examine correlations between regional Physician Referral Networks structure, local census data, healthcare effectiveness, and patient outcomes.
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Fokas, Nikos, Gábor Jelenfi, and Róbert Tardos. "Cognitive Maps, Cultural Distances and National Stereotypes in Times of Crises: Comparing Greece and Hungary." In IMISCOE Research Series. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11574-5_6.

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AbstractThis chapter centres on polarised rearrangements of the imageries of ‘Others’ both in the Greek and the Hungarian public, during a period witnessing the impacts of the global financial crisis and the so-called ‘refugee crisis.’ We examined varieties of imageries of ‘Others’ in crisis situations, based on an online survey that was conducted in parallel in Greece and Hungary. Concurrently, we analysed the auto-stereotypical features of Greeks and Hungarians, along with their hetero-stereotype characteristics concerning some key nationalities (Americans, Arabs, Germans and Russians) to capture emerging patterns of sympathies, perceived skills and cultural distances. We found a substantial core of positive expressive auto-stereotypes among the Greek population. Hungarian auto-stereotypes reflected somewhat more instrumental-oriented self-images. The cognitive maps outlined by the two-mode network methodology displayed groupings of nationalities with related stereotypical attributes, such as ‘Western,’ ‘Eastern’ or ‘Peripheral.’ We also examined the beliefs of certain segments of the overall population depending on their exposure to financial and refugee crises. Media analyses of various activity domains conducted correspondingly for the respective countries highlighted substantial shifts between pre- and post-crisis patterns regarding both these countries’ positions and their characteristic features, as portrayed in the Greek and the Hungarian public discourse.
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Vin, Eric, Shun Kashiwa, Matthew Rhea, et al. "3D Environment Modeling for Falsification and Beyond with Scenic 3.0." In Computer Aided Verification. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-37706-8_13.

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AbstractWe present a major new version of Scenic, a probabilistic programming language for writing formal models of the environments of cyber-physical systems. Scenic has been successfully used for the design and analysis of CPS in a variety of domains, but earlier versions are limited to environments that are essentially two-dimensional. In this paper, we extend Scenic with native support for 3D geometry, introducing new syntax that provides expressive ways to describe 3D configurations while preserving the simplicity and readability of the language. We replace Scenic’s simplistic representation of objects as boxes with precise modeling of complex shapes, including a ray tracing-based visibility system that accounts for object occlusion. We also extend the language to support arbitrary temporal requirements expressed in LTL, and build an extensible Scenic parser generated from a formal grammar of the language. Finally, we illustrate the new application domains these features enable with case studies that would have been impossible to accurately model in Scenic 2.
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Swaminathan, Janani, Chirag Jain, Madison Miller, and Heather Knight. "A Semi-automated Multi-robot Comedy Performance System with Gesture." In Lecture Notes in Computer Science. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3519-1_24.

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Abstract Humor is a nuanced field; thus, prior robot comedy efforts have found the stage a relevant and helpful source of HRI analysis data, particularly when multiple performers can interact with each other. However, hand-animating one robot is already high-intensity, and to our knowledge, no one has sought to scale entertainment robot gesture design via domain-specific automation. Thus, this paper aims to: (1) study the use of head gesture through a video analysis of 20 human standup comedians, (2) algorithmically generate robot head gestures for dueling robot comedy scripts based on linguistic analysis, and (3) explore critical features for robot entertainment editing interfaces, such as replaying a scene from the middle of a script during rehearsals, as automation is intended to enhance speed rather than finesse. Human entertainers develop expertise via many hours on the stage, sometimes crashing (failing) or bombing (meeting lackluster response), and other times captivating (success) or ‘killing it’ (high audience response). The value of effective timing and gesture in a range of bi-directional communication scenarios is well established, thus, this work sought to ease the process of creating new multi-robot comedy performances, leveraging a Portable Robot Comedy stage we had developed and deployed with two Blossom robots at a variety of public festivals. Human comedian annotation results discuss how linguistic context can predict best- match gestures, and identify common expressive uses of gesture during standup comedy: positive affect, negative affect, spatial location, and audience interaction. The software analyzes word strings within a script to auto-assign gestures that match the above expressive categories. While this work occurred before Large Language Models became easily accessible, the software is relevant to efficiently adding gesture and time to any generated script. As such, ongoing work extends these efforts to the higher anthropomorphism Pepper robot platform for LLM-human created guided mindfulness meditations.
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Beringer, Lennart. "Verified Software Units." In Programming Languages and Systems. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72019-3_5.

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AbstractModularity - the partitioning of software into units of functionality that interact with each other via interfaces - has been the mainstay of software development for half a century. In case of the C language, the main mechanism for modularity is the compilation unit / header file abstraction. This paper complements programmatic modularity for C with modularity idioms for specification and verification in the context of Verifiable C, an expressive separation logic for CompCert . Technical innovations include (i) abstract predicate declarations – existential packages that combine Parkinson &amp; Bierman’s abstract predicates with their client-visible reasoning principles; (ii) residual predicates, which help enforcing data abstraction in callback-rich code; and (iii) an application to pure (Smalltalk-style) objects that connects code verification to model-level reasoning about features such as subtyping, self, inheritance, and late binding. We introduce our techniques using concrete example modules that have all been verified using the Coq proof assistant and combine to fully linked verified programs using a novel, abstraction-respecting component composition rule for Verifiable C.
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Foo, Darius, Yahui Song, and Wei-Ngan Chin. "Staged Specification Logic for Verifying Higher-Order Imperative Programs." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-71162-6_26.

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AbstractHigher-order functions and imperative states are language features supported by many mainstream languages. Their combination is expressive and useful, but complicates specification and reasoning, due to the use of yet-to-be-instantiated function parameters. One inherent limitation of existing specification mechanisms is its reliance on only two stages : an initial stage to denote the precondition at the start of the method and a final stage to capture the postcondition. Such two-stage specifications force abstract properties to be imposed on unknown function parameters, leading to less precise specifications for higher-order methods. To overcome this limitation, we introduce a novel extension to Hoare logic that supports multiple stages for a call-by-value higher-order language with ML-like local references. Multiple stages allow the behavior of unknown function-type parameters to be captured abstractly as uninterpreted relations; and can also model the repetitive behavior of each recursion as a separate stage. In this paper, we define our staged logic with its semantics, prove its soundness and develop a new automated higher-order verifier, called Heifer, for a core ML-like language.
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Conference papers on the topic "Expressive features"

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Martín-Cortinas, Álvaro, Daniel Sáez-Trigueros, Grzegorz Beringer, et al. "Investigating Self-Supervised Features for Expressive, Multilingual Voice Conversion." In 2024 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW). IEEE, 2024. http://dx.doi.org/10.1109/icasspw62465.2024.10627128.

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Challa, Ramya, Luke Sanchez, Cristina G. Wilson, and Heather Knight. "Take it! Exploring Cartesian Features for Expressive Arm Motion." In 2024 33rd IEEE International Conference on Robot and Human Interactive Communication (ROMAN). IEEE, 2024. http://dx.doi.org/10.1109/ro-man60168.2024.10731346.

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Drexler, Dominik, Simon Ståhlberg, Blai Bonet, and Hector Geffner. "Symmetries and Expressive Requirements for Learning General Policies." In 21st International Conference on Principles of Knowledge Representation and Reasoning {KR-2023}. International Joint Conferences on Artificial Intelligence Organization, 2024. http://dx.doi.org/10.24963/kr.2024/79.

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State symmetries play an important role in planning and generalized planning. In the first case, state symmetries can be used to reduce the size of the search; in the second, to reduce the size of the training set. In the case of general planning, however, it is also critical to distinguish non-symmetric states, i.e., states that represent non-isomorphic relational structures. However, while the language of first-order logic distinguishes non-symmetric states, the languages and architectures used to represent and learn general policies do not. In particular, recent approaches for learning general policies use state features derived from description logics or learned via graph neural networks (GNNs) that are known to be limited by the expressive power of C2, first-order logic with two variables and counting. In this work, we address the problem of detecting symmetries in planning and generalized planning and use the results to assess the expressive requirements for learning general policies over various planning domains. For this, we map planning states to plain graphs, run off-the-shelf algorithms to determine whether two states are isomorphic with respect to the goal, and run coloring algorithms to determine if C2 features computed logically or via GNNs distinguish non-isomorphic states. Symmetry detection results in more effective learning, while the failure to detect non-symmetries prevents general policies from being learned at all in certain domains.
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Geh, Renato Lui, Jonas Gonçalves, Igor C. Silveira, Denis D. Mauá, and Fabio G. Cozman. "dPASP: A Probabilistic Logic Programming Environment For Neurosymbolic Learning and Reasoning." In 21st International Conference on Principles of Knowledge Representation and Reasoning {KR-2023}. International Joint Conferences on Artificial Intelligence Organization, 2024. http://dx.doi.org/10.24963/kr.2024/69.

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We present dPASP, a novel declarative probabilistic logic programming framework that allows for the specification of discrete probabilistic models by neural predicates, relational logic constraints, and interval-valued probabilistic choices. This expressive combination facilitates the construction of models that combine low-level perception (images, texts, etc) and common-sense reasoning, thus providing an excellent tool for neurosymbolic reasoning. To support all such features, we discuss several semantics for probabilistic logic programs that allow one to express nondeterminism, non-monotonic reasoning, contradiction, and (vague) probabilistic knowledge. We also discuss how gradient-based learning can be performed with neural predicates and probabilistic choices under selected semantics. To showcase the possibilities offered by the framework, we present case studies that exploit different semantics and constructs.
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Huang, Yansong, Junjie Peng, Zesu Cai, Jiatao Guo, Gan Chen, and Shuhua Tan. "Facial Expression Recognition with Age-Group Expression Feature Learning." In 2024 International Joint Conference on Neural Networks (IJCNN). IEEE, 2024. http://dx.doi.org/10.1109/ijcnn60899.2024.10649944.

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Davis, James W., and Vignesh S. Kannappan. "Expressive features for movement exaggeration." In ACM SIGGRAPH 2002 conference abstracts and applications. ACM Press, 2002. http://dx.doi.org/10.1145/1242073.1242195.

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Black, Alan W., H. Timothy Bunnell, Ying Dou, et al. "Articulatory features for expressive speech synthesis." In ICASSP 2012 - 2012 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2012. http://dx.doi.org/10.1109/icassp.2012.6288796.

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More, Stefan, Sebastian Ramacher, Lukas Alber, and Marco Herzl. "Extending Expressive Access Policies with Privacy Features." In 2022 IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom). IEEE, 2022. http://dx.doi.org/10.1109/trustcom56396.2022.00084.

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Jiang, Bo, and Shuyu Liu. "Expressive Image Sketching with Two-Layer Image Features." In 2013 Seventh International Conference on Image and Graphics (ICIG). IEEE, 2013. http://dx.doi.org/10.1109/icig.2013.187.

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Ning, Ziqian, Qicong Xie, Pengcheng Zhu, et al. "Expressive-VC: Highly Expressive Voice Conversion with Attention Fusion of Bottleneck and Perturbation Features." In ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2023. http://dx.doi.org/10.1109/icassp49357.2023.10096057.

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Reports on the topic "Expressive features"

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Bonatti, Piero, Carsten Lutz, and Frank Wolter. Expressive Non-Monotonic Description Logics Based on Circumscription. Technische Universität Dresden, 2005. http://dx.doi.org/10.25368/2022.149.

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Recent applications of description logics (DLs) strongly suggest the integration of non-monotonic features into DLs, with particular attention to defeasible inheritance. However, the existing non-monotonic extensions of DLs are usually based on default logic or autoepistemic logic, and have to be seriously restricted in expressive power to preserve the decidability of reasoning. In particular, such DLs allow the modelling of defeasible inheritance only in a very restricted form, where non-monotonic reasoning is limited to individuals that are explicitly identified by constants in the knowledge base. In this paper, we consider non-monotonic extensions of expressive DLs based on circumscription. We prove that reasoning in such DLs is decidable even without the usual, strong restrictions in expressive power. We pinpoint the exact computational complexity of reasoning as complete for NPNEXP and NEXPNP, depending on whether or not the number of minimized and fixed predicates is assumed to be bounded by a constant. These results assume that only concept names (and no role names) can be minimized and fixed during minimization. On the other hand, we show that fixing role names during minimization makes reasoning undecidable.
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Rigotti, Christophe, and Mohand-Saïd Hacid. Representing and Reasoning on Conceptual Queries Over Image Databases. Aachen University of Technology, 1999. http://dx.doi.org/10.25368/2022.89.

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The problem of content management of multimedia data types (e.g., image, video, graphics) is becoming increasingly important with the development of advanced multimedia applications. Traditional database management systems are inadequate for the handling of such data types. They require new techniques for query formulation, retrieval, evaluation, and navigation. In this paper we develop a knowledge-based framework for modeling and retrieving image data by content. To represent the various aspects of an image object's characteristics, we propose a model which consists of three layers: (1) Feature and Content Layer, intended to contain image visual features such as contours, shapes,etc.; (2) Object Layer, which provides the (conceptual) content dimension of images; and (3) Schema Layer, which contains the structured abstractions of images, i.e., a general schema about the classes of objects represented in the object layer. We propose two abstract languages on the basis of description logics: one for describing knowledge of the object and schema layers, and the other, more expressive, for making queries. Queries can refer to the form dimension (i.e., information of the Feature and Content Layer) or to the content dimension (i.e., information of the Object Layer). These languages employ a variable free notation, and they are well suited for the design, verification and complexity analysis of algorithms. As the amount of information contained in the previous layers may be huge and operations performed at the Feature and Content Layer are time-consuming, resorting to the use of materialized views to process and optimize queries may be extremely useful. For that, we propose a formal framework for testing containment of a query in a view expressed in our query language. The algorithm we propose is sound and complete and relatively efficient.
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Rigotti, Christophe, and Mohand-Saïd Hacid. Representing and Reasoning on Conceptual Queries Over Image Databases. Aachen University of Technology, 1999. http://dx.doi.org/10.25368/2022.89.

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The problem of content management of multimedia data types (e.g., image, video, graphics) is becoming increasingly important with the development of advanced multimedia applications. Traditional database management systems are inadequate for the handling of such data types. They require new techniques for query formulation, retrieval, evaluation, and navigation. In this paper we develop a knowledge-based framework for modeling and retrieving image data by content. To represent the various aspects of an image object's characteristics, we propose a model which consists of three layers: (1) Feature and Content Layer, intended to contain image visual features such as contours, shapes,etc.; (2) Object Layer, which provides the (conceptual) content dimension of images; and (3) Schema Layer, which contains the structured abstractions of images, i.e., a general schema about the classes of objects represented in the object layer. We propose two abstract languages on the basis of description logics: one for describing knowledge of the object and schema layers, and the other, more expressive, for making queries. Queries can refer to the form dimension (i.e., information of the Feature and Content Layer) or to the content dimension (i.e., information of the Object Layer). These languages employ a variable free notation, and they are well suited for the design, verification and complexity analysis of algorithms. As the amount of information contained in the previous layers may be huge and operations performed at the Feature and Content Layer are time-consuming, resorting to the use of materialized views to process and optimize queries may be extremely useful. For that, we propose a formal framework for testing containment of a query in a view expressed in our query language. The algorithm we propose is sound and complete and relatively efficient.
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Silapachote, Piyanuch, Deepak R. Karuppiah, and Allen R. Hanson. Feature Selection Using Adaboost for Face Expression Recognition. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada438800.

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Gurevitz, Michael, Michael Adams, and Eliahu Zlotkin. Insect Specific Alpha Neurotoxins from Scorpion Venoms: Mode of Action and Structure-Function Relationships. United States Department of Agriculture, 1996. http://dx.doi.org/10.32747/1996.7613029.bard.

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This study was motivated by the need to develop new means and approaches to the design of future, environmentally-safe, insecticides. Utilization of anti-insect selective toxins from scorpion venoms and clarification of the molecular basis for their specificity, are a major focus in this project and may have an applicative value. Our study concentrated on the highly insecticidal toxin, LqhaIT, and was devoted to: (I) Characterization of the neuropharmacological and electrophysiological features of this toxin. (II) Establishment of a genetic system for studying structure/activity relationships of the toxin. (III) Analysis of the insecticidal efficacy of an entomopathogenic baculovirus engineered and expressing LqhaIT. The results obtained in this project suggest that: 1) The receptor binding site of LqhaIT on insect sodium channels differs most likely from its analogous receptor site 3 on vertebrate sodium channels. 2) The effects of LqhaIT are presynaptic. Hyperexcitation at the neuromuscular results from dramatic slowing of sodium channel inactivation and enhanced peak sodium currents causes by LqhaIT. 3) The putative toxic surface of LqhaIT involves aromatic and charged amino acid residues located around the C-terminal region and five-residue-turn of the toxin (unpublished). 4) The anti-insect/anti-mammalian toxicity ratio can be altered by site-directed mutagenesis (publication 8). This effect was partly shown at the level of sodium channel function. 5) The insecticidal efficacy of AcNPV baculovirus increased to a great extent when infection was accompanied by expression of LqhaIT (publication 5).
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Chen, Z., S. E. Grasby, C. Deblonde, and X. Liu. AI-enabled remote sensing data interpretation for geothermal resource evaluation as applied to the Mount Meager geothermal prospective area. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330008.

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The objective of this study is to search for features and indicators from the identified geothermal resource sweet spot in the south Mount Meager area that are applicable to other volcanic complexes in the Garibaldi Volcanic Belt. A Landsat 8 multi-spectral band dataset, for a total of 57 images ranging from visible through infrared to thermal infrared frequency channels and covering different years and seasons, were selected. Specific features that are indicative of high geothermal heat flux, fractured permeable zones, and groundwater circulation, the three key elements in exploring for geothermal resource, were extracted. The thermal infrared images from different seasons show occurrence of high temperature anomalies and their association with volcanic and intrusive bodies, and reveal the variation in location and intensity of the anomalies with time over four seasons, allowing inference of specific heat transform mechanisms. Automatically extracted linear features using AI/ML algorithms developed for computer vision from various frequency bands show various linear segment groups that are likely surface expression associated with local volcanic activities, regional deformation and slope failure. In conjunction with regional structural models and field observations, the anomalies and features from remotely sensed images were interpreted to provide new insights for improving our understanding of the Mount Meager geothermal system and its characteristics. After validation, the methods developed and indicators identified in this study can be applied to other volcanic complexes in the Garibaldi, or other volcanic belts for geothermal resource reconnaissance.
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Baader, Franz, Nguyen Than Binh, Stefan Borgwardt, and Barbara Morawska. Unification in the Description Logic EL Without Top Constructor. Technische Universität Dresden, 2011. http://dx.doi.org/10.25368/2022.179.

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Unification in Description Logics has been proposed as a novel inference service that can, for example, be used to detect redundancies in ontologies. The inexpressive Description Logic EL is of particular interest in this context since, on the one hand, several large biomedical ontologies are defined using EL. On the other hand, unification in EL has recently been shown to be NP-complete, and thus of considerably lower complexity than unification in other DLs of similarly restricted expressive power. However, EL allows the use of the top concept (&gt;), which represents the whole interpretation domain, whereas the large medical ontology SNOMEDCT makes no use of this feature. Surprisingly, removing the top concept from EL makes the unification problem considerably harder. More precisely, we will show that unification in EL without the top concept is PSpace-complete.
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Grumet, R., J. Burger, Y. Tadmor, et al. Cucumis fruit surface biology: Genetic analysis of fruit exocarp features in melon (C. melo) and cucumber (C. sativus). United States-Israel Binational Agricultural Research and Development Fund, 2020. http://dx.doi.org/10.32747/2020.8134155.bard.

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The fruit surface (exocarp) is a unique tissue with multiple roles influencing fruit growth and development, disease susceptibility, crop yield, post-harvest treatments, shipping and storage quality, and food safety. Furthermore, highly visible exocarp traits are the consumer's first exposure to the fruit, serving to identify fruit type, variety, attractiveness, and market value. Cucurbit fruit, including the closely related Cucumis species, melon (C. melo) and cucumber (C. sativus), exhibit tremendous diversity for fruit surface properties that are not present in model species. In this project, we identified genetic factors influencing Cucumis fruit surface morphology with respect to important quality determinants such as exocarp and flesh color, cuticle deposition, and surface netting. We employed a combination of approaches including: genome-wide association studies (GWAS) utilizing an extensive melon population and the U.S. Plant Introduction (PI) collection for cucumber to identify genomic regions associated with natural variation in fruit surface traits; bulked segregant RNA-seq (BSR-seq) analysis of bi-parental F2:3 or RIL (recombinant inbred line) populations to genomic regions and candidate genes segregating for fruit surface traits; and comparison of syntenic genomic regions and identification of homologous candidate genes. Candidate genes were examined for sequence and/or expression differences during fruit development that correspond with phenotypic differences. Primary outcomes of the work included identification of candidate genes influencing cuticle deposition, epidermal cell structure, surface netting, and intensity of rind and flesh color. Parallel studies identified mutations within the cucumber and melon homologs of the transcription factor WIN1 (WAX INDUCER1) as a significant factor influencing these surface properties. Additional QTL (quantitative trait loci) were identified in both species, and candidate genes in melon include a novel beta-glucosidase involved in lignin production and an integral membrane protein potentially involved in cuticle metabolism. Genetic resources and biochemical approaches have been developed to study cuticle and wax deposition in both species: segregating populations of melon were developed and sequenced for bulked segregant analysis and samples collected for metabolic analysis; an isolation procedure was developed for lipid droplets from cucumber peel and metabolomic analyses have been initiated. Genetic studies in melon identified mutations in a candidate gene (APRR2), associated with light immature rind, and further indicated that this gene is also associated with color intensity of both mature rinds and flesh, making it a good target for breeding. GWAS studies utilizing the cucumber core diversity population are being performed to identify additional sources of variation for fruit surface properties, map QTL, and examine for synteny with melon. Collectively these studies identified genetic regions associated with important quality traits and contributed to our understanding of underlying biological processes associated with fruit surface development. Knowledge of genetic control of these characteristics can facilitate more efficient breeding for important fruit surface traits.
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Prusky, Dov, and Jeffrey Rollins. Modulation of pathogenicity of postharvest pathogens by environmental pH. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7587237.bard.

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Until recently, environmental pH was not considered a factor in determining pathogen compatibility. Our hypothesis was that the environmental pH at the infection site, which is dynamically controlled by activities of both the host and the pathogen, regulates the expression of genes necessary for disease development in Colletotrichum gloeosporioides and Sclerotinia sclerotiorum. This form of regulation ensures that genes are expressed at optimal conditions for their encoded activities.Pectate lyase encoded by pelB, has been demonstrated to play a key role in virulence of C. gloeosporioides in avocado fruit. Polyglacturonase synergism with oxalic acid production is considered to be an essential pathogenicity determinant in the interactions of S. sclerotiorum with its numerous hosts. A common regulatory feature of these virulence and pathogenicity factors is their dependence upon environmental pH conditions within the host niche to create optimal conditions for expression and secretion. In this proposal we have examined, 1) the mechanisms employed by these fungi to establish a suitable pH environment, 2) the molecular levels at which genes and gene products are regulated in response to environmental pH, and 3) the molecular basis and functional importance of pH-responsive gene regulation during pathogenicity. The specific objectives of the proposal were: 1. Characterize the mechanism of local pH modulation and the effect of ambient pH on the expression and secretion of virulence factors. 2. Provide evidence that a conserved molecular pathway for pH-responsive gene expression exists in C. gloeosporioides by cloning a pacC gene homologue. 3. Determine the role of pacC in pathogenicity by gene disruption and activating mutations. Major conclusions 1. We determined the importance of nitrogen source and external pH in the secretion of the virulence factor pectate lyase with respect to the ambient pH transcriptional regulator pacC. It was concluded that nitrogen source availability and ambient pH are two independent signals for the transcriptional regulation of genes required for the disease process of C. gloeosporioides and possibly of other pathogens. 2. We also determined that availability of ammonia regulate independently the alkalinization process and pelB expression, pecate lyase secretion and virulence of C. gloeosporioides. 3. Gene disruption of pacC reduced virulence of C. gloeosporioides however did not reduced fully pelB expression. It was concluded that pelB expression is regulated by several factors including pH, nitrogen and carbon sources. 4. Gene disruption of pacC reduced virulence of S. slcerotiourum Creation of a dominant activating
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Ma, Yue, and Felix Distel. Learning Formal Definitions for Snomed CT from Text. Technische Universität Dresden, 2013. http://dx.doi.org/10.25368/2022.193.

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Snomed CT is a widely used medical ontology which is formally expressed in a fragment of the Description Logic EL++. The underlying logics allow for expressive querying, yet make it costly to maintain and extend the ontology. Existing approaches for ontology generation mostly focus on learning superclass or subclass relations and therefore fail to be used to generate Snomed CT definitions. In this paper, we present an approach for the extraction of Snomed CT definitions from natural language texts, based on the distance relation extraction approach. By benefiting from a relatively large amount of textual data for the medical domain and the rich content of Snomed CT, such an approach comes with the benefit that no manually labelled corpus is required. We also show that the type information for Snomed CT concept is an important feature to be examined for such a system. We test and evaluate the approach using two types of texts. Experimental results show that the proposed approach is promising to assist Snomed CT development.
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