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Rozprawy doktorskie na temat „Query formulation”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

White, Barbara Jo. "Evaluating the impact of typical images for visual query formulation on search efficacy /." Full text available from ProQuest UM Digital Dissertations, 2005. http://0-proquest.umi.com.umiss.lib.olemiss.edu/pqdweb?index=0&did=1253473101&SrchMode=1&sid=3&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1193754304&clientId=22256.

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Munir, Kamran. "Ontology-Driven Relational Query Formulation Using the Semantic and Assertion Capabilities of OWL-DL." Thesis, University of the West of England, Bristol, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.524696.

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Maxwell, Kylie Tamsin. "Term selection in information retrieval." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/20389.

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Systems trained on linguistically annotated data achieve strong performance for many language processing tasks. This encourages the idea that annotations can improve any language processing task if applied in the right way. However, despite widespread acceptance and availability of highly accurate parsing software, it is not clear that ad hoc information retrieval (IR) techniques using annotated documents and requests consistently improve search performance compared to techniques that use no linguistic knowledge. In many cases, retrieval gains made using language processing components, such as

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4

Phillips, Robert H. "The effect of denormalized schemas on ad-hoc query formulation: a human factors experiment in database design." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54262.

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The information systems literature is rich with studies of database organization and its impact on machine, programmer, and administrative efficiency. Little attention, however, has been paid to the impact of database organization on end-user interactions with computer systems. This research effort addressed this increasingly important issue by examining the effects of database organization on the ability of end-users to locate and extract desired information. The study examined the impact of normalization levels of external relational database schema on end-user query success. It has been su

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Appleton, Elizabeth A. "Exploring the Use of Evidence Based Practice Questions to Improve the Search Process." Thesis, School of Information and Library Science, 2007. http://hdl.handle.net/1901/386.

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Evidence Based Practice (EBP) is a relatively new approach that professionals are using to cope with the ever-growing body of literature in their fields. The goal of EBP is to effectively use this body of literature to improve professional practice, thus improving the quality of services. A major component of EBP is asking a focused, well-built question, referred to in this paper as an Evidence Based Practice Question (EBPQ). This paper reports the findings of an exploratory study that examines the use an EBPQ to respond to reference questions emailed to a university library reference desk.

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Ziane, Mikal, and François Bouillé. "Optimisation de requêtes pour un système de gestion de bases de données parallèle." Paris 6, 1992. http://www.theses.fr/1992PA066689.

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Dans le cadre du projet ESPRIT II EDS nous avons conçu et réalisé un optimiseur physique pour un système de gestion de bases de données parallèle. Cet optimiseur prend en compte plusieurs types de parallélisme, d'algorithmes parallèles et de stratégies de fragmentation. D'autre part, nous dégageons quels types de connaissance déterminent l'extensibilité et l'efficacité d'un optimiseur. Enfin, nous proposons une nouvelle méthode d'optimisation de la traversée de chemins dans les bases de données à objets, qui améliore les méthodes traditionnelles.

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Webber, Carine Geltrudes. "O estudo e desenvolvimento do protótipo de uma ferramenta de apoio a formulação de consultas a bases de dados na área da saúde." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1997. http://hdl.handle.net/10183/18243.

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O objetivo deste trabalho é, através do estudo de diversas tecnologias, desenvolver o protótipo de uma ferramenta capaz de oferecer suporte ao usuário na formulacdo de uma consulta a MEDLINE (Medical Literature Analysis and Retrieval System On Line). A MEDLINE é um sistema de recuperação de informações bibliográficas, na área da biomedicina, desenvolvida pela National Library of Medicine. Ela é uma ferramenta cuja utilizando tem sido ampliada nesta área em decorrência do aumento da utilizando de literatura, disponível eletronicamente, por profissionais da área da saúde. As pessoas, em geral, b

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8

Tseng, Liang-Chun. "Modelling users' contextual querying behaviour for web image searching." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/61049/1/Liang-Chun_Tseng_Thesis.pdf.

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The rapid growth of visual information on Web has led to immense interest in multimedia information retrieval (MIR). While advancement in MIR systems has achieved some success in specific domains, particularly the content-based approaches, general Web users still struggle to find the images they want. Despite the success in content-based object recognition or concept extraction, the major problem in current Web image searching remains in the querying process. Since most online users only express their needs in semantic terms or objects, systems that utilize visual features (e.g., color o

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Latour, Marilyne. "Du besoin d'informations à la formulation des requêtes : étude des usages de différents types d'utilisateurs visant l'amélioration d'un système de recherche d'informations." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENL015/document.

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Devant des collections massives et hétérogènes de données, les systèmes de RI doivent désormais pouvoir appréhender des comportements d'utilisateurs aussi variés qu'imprévisibles. L'objectif de notre travail est d'évaluer la façon dont un même utilisateur verbalise un besoin informationnel à travers un énoncé de type « expression libre » (appelé langage naturel) et un énoncé de type mots-clés (appelé langage de requêtes). Pour cela, nous nous situons dans un contexte applicatif, à savoir des demandes de remboursement des utilisateurs d'un moteur de recherche dédié à des études économiques en f

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Limbu, Dilip Kumar. "Contextual information retrieval from the WWW." Click here to access this resource online, 2008. http://hdl.handle.net/10292/450.

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Contextual information retrieval (CIR) is a critical technique for today’s search engines in terms of facilitating queries and returning relevant information. Despite its importance, little progress has been made in its application, due to the difficulty of capturing and representing contextual information about users. This thesis details the development and evaluation of the contextual SERL search, designed to tackle some of the challenges associated with CIR from the World Wide Web. The contextual SERL search utilises a rich contextual model that exploits implicit and explicit data to modify

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Wien, Sigurd. "Efficient Top-K Fuzzy Interactive Query Expansion While Formulating a Query : From a Performance Perspective." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23010.

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Interactive query expansion and fuzzy search are two efficient techniques for assisting a user in an information retrieval process. Interactive query expansion helps the user refine a query by giving suggestions on how a query might be extended to further specify the actual information need of the user. Fuzzy search, on the other hand, supports the user by including results for terms that approximately equals the query string. This avoids reformulating queries with slight misspellings and will retrieve results for indexed terms not spelled as expected. This study will look at the performance a

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Schulte, Stefan. "Web Service Discovery Based on Semantic Information - Query Formulation and Adaptive Matchmaking." Phd thesis, 2010. https://tuprints.ulb.tu-darmstadt.de/2293/1/FB18-Stefan_Schulte-DrArbeit_Published.pdf.

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Service-oriented Computing introduces a range of possible applications spanning from the combination of Web services in software mashups to the design and implementation of entire IT system landscapes following the paradigm of Service-oriented Architectures. The discovery of services which provide a desired capability is one of the basic operations in Service-oriented Computing and is deemed to be one of the grand challenges in Web service research. This applies in particular to scenarios with a large number of service offers, where it is desirable to automate the discovery process to some deg

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13

Yang, Ping Jing, and 楊平京. "Click-Search: Supporting Information Search with Interactive Image-to-Keyword Query Formulation." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/30063011799325044561.

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碩士<br>國立清華大學<br>資訊工程學系<br>104<br>Information search is a common yet important task in everyday work and life. It remains a challenging design issue how to help users search for information or things they don’t necessarily know how to express with words. Also, even when people know how to express, the cognitive cost required to retrieve the concepts and formulate the queries can be excessive. In this paper, we present Click-Search, a search user interface that allows people to indicate their search intents by merely selecting and cropping segments of image contents. The system automatically con

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Schulte, Stefan [Verfasser]. "Web service discovery based on semantic information : query formulation and adaptive matchmaking / von Stefan Schulte." 2010. http://d-nb.info/1007432985/34.

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15

Peixoto, Rui José Viegas. "A informática na educação." Master's thesis, 2005. http://hdl.handle.net/10400.2/561.

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Dissertação de Mestrado em Ensino das Ciências apresentada à Universidade Aberta<br>O estudo da relação entre o conhecimento que os professores têm sobre informática, a utilização que fazem do computador na sala de aula e a forma como encaram as opções metodológicas que proporcionem o sucesso do ensinoaprendizagem, foi o objectivo desta dissertação. Neste sentido, procurou-se saber: (1) a relação entre a experiência profissional e o momento em que os professores das diversas disciplinas, se sentiram à vontade na utilização dos computadores; (2) quais as actividades mais utilizadas em cada níve

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Peetz-Ullman, Juliane. "The difficult task of finding digitized music manuscripts in online library collection." Thesis, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-23676.

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Music researchers are seldom at the center of attention as a user group within LIS. Thus, investigations of search possibilities for digitized music manuscript collections with a user perspective are lacking. Here, three digitized music manuscript collections (the Schrank II collection in Dresden, the Utile Dulci collection in Stockholm, and the Düben collection in Uppsala) are examined with regard to the accessibility of their contents to the target user group in two steps: First, music researchers are asked about their information seeking process and queries. They are observed in surveys, in

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Zhang, Hao. "Formulating Complex Queries Using Templates." Thesis, 2009. http://hdl.handle.net/10012/4248.

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While many users have relatively general information needs, users who are familiar with a certain topic may have more specific or complex information needs. Such users already have some knowledge of a subject and its concepts, and they need to find information on a specific aspect of a certain entity, such as its cause, effect, and relationships between entities. To successfully resolve this kind of complex information needs, in our study, we investigated the effectiveness of topic-independent query templates as a tool for assisting users in articulating their information needs. A set of quer

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18

Ghorashi, Seyed Soroush. "Leyline : a provenance-based desktop search system using graphical sketchpad user interface." Thesis, 2011. http://hdl.handle.net/1957/28032.

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While there are powerful keyword search systems that index all kinds of resources including emails and web pages, people have trouble recalling semantic facts such as the name, location, edit dates and keywords that uniquely identifies resources in their personal repositories. Reusing information exasperates this problem. A rarely used approach is to leverage episodic memory of file provenance. Provenance is traditionally defined as "the history of ownership of a valued object". In terms of documents, we consider not only the ownership, but also the operations performed on the document, especi

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