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Dissertations / Theses on the topic 'Information retrieval. Information organization. Ontology'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Cui, Licong. "Ontology-guided Health Information Extraction, Organization, and Exploration." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1401709795.

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2

Khilwani, Nitesh. "Role of Semantic web in the changing context of Enterprise Collaboration." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8495.

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In order to compete with the global giants, enterprises are concentrating on their core competencies and collaborating with organizations that compliment their skills and core activities. The current trend is to develop temporary alliances of independent enterprises, in which companies can come together to share skills, core competencies and resources. However, knowledge sharing and communication among multidiscipline companies is a complex and challenging problem. In a collaborative environment, the meaning of knowledge is drastically affected by the context in which it is viewed and interpre

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3

Tomassen, Stein L. "Conceptual Ontology Enrichment for Web Information Retrieval." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14270.

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Searching for information on the Web can be frustrating. One of the reasons is the ambiguity of words. The work presented in this thesis concentrates on how the effectiveness of standard information retrieval systems can be enhanced with semantic technologies like ontologies. Ontologies are knowledge models that can represent knowledge of any universe of discourse by describing how concepts of a domain are related. Creating and maintaining ontologies can be tedious and costly. However, we focus on reusing ontologies, rather than engineering, and on their applicability to improve the retrieval

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4

YARDI, APARNA ARVIND. "CONCEPT BASED INFORMATION ORGANIZATION AND RETRIEVAL." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1152832274.

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5

Jimeno, Yepes Antonio José. "Ontology refinement for improved information retrieval in the biomedical domain." Doctoral thesis, Universitat Jaume I, 2009. http://hdl.handle.net/10803/384552.

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Este trabajo de tesis doctoral se centra en el uso de ontologías de dominio y su refinamiento enfocado a la recuperación de la información. El dominio seleccionado ha sido el de la Biomedicina, que dispone de una extensa colección de resúmenes en la base de datos Medline y recursos que facilitan la creación de ontologías muy extensas, tales como MeSH o UMLS. En este trabajo se ha desarrollado también un modelo de formulación de consulta que permite relacionar un modelo de documento con una ontología dentro de los modelos de lenguaje. Además hemos desarrollado un algoritmo que permite mejorar

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6

Mehalingam, Senthilkumar. "Ontology based code generation for datalogger." Diss., Online access via UMI:, 2006.

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7

Fischer, Wolf [Verfasser], and Bernhard [Akademischer Betreuer] Bauer. "Linguistically Motivated Ontology-Based Information Retrieval / Wolf Fischer. Betreuer: Bernhard Bauer." Augsburg : Universität Augsburg, 2013. http://d-nb.info/1077702795/34.

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8

Kipp, Margaret E. I. "Tagging for health information organisation and retrieval." dLIST, 2007. http://hdl.handle.net/10150/105622.

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This paper examines the tagging practices evident on CiteULike, a research oriented social bookmarking site for journal articles. Articles selected for this study were health information and medicine related. Tagging practices were examined using standard informetric measures for analysis of bibliographic information and analysis of term use. Additionally, tags were compared to descriptors assigned to the same article.

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9

Shao, Bo. "User-centric Music Information Retrieval." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/416.

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The rapid growth of the Internet and the advancements of the Web technologies have made it possible for users to have access to large amounts of on-line music data, including music acoustic signals, lyrics, style/mood labels, and user-assigned tags. The progress has made music listening more fun, but has raised an issue of how to organize this data, and more generally, how computer programs can assist users in their music experience. An important subject in computer-aided music listening is music retrieval, i.e., the issue of efficiently helping users in locating the music they are looking for

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10

Bhogal, Jagdev. "Investigating ontology based query expansion using a probabilistic retrieval model." Thesis, City University London, 2011. http://openaccess.city.ac.uk/2946/.

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This research briefly outlines the problems of traditional information retrieval systems and discusses the different approaches to inferring context in document retrieval. By context we mean word disambiguation which is achieved by exploring the generalisation-specialisation hierarchies within a given ontology. Specifically, we examine the use of ontology based query expansion for defining query context. Query expansion can be done in many ways and in this work we consider the use of relevance feedback and pseudo-relevance feedback for query expansion. We examine relevance feedback and pseudo-

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11

Chang, Jia Kang. "Investigation on applying modular ontology to statistical language model for information retrieval." Thesis, University of Central Lancashire, 2015. http://clok.uclan.ac.uk/11803/.

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The objective of this research is to provide a novel approach to improving retrieval performance by exploiting Ontology with the statistical language model (SLM). The proposed methods consist of two major processes, namely ontology-based query expansion (OQE) and ontology-based document classification (ODC). Research experiments have required development of an independent search tool that can combine the OQE and ODC in a traditional SLM-based information retrieval (IR) process using a Web document collection. This research considers the ongoing challenges of modular ontology enhanced SLM-based

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12

Yeung, Chung Kei. "Ontological model for information systems development methodology." HKBU Institutional Repository, 2006. http://repository.hkbu.edu.hk/etd_ra/702.

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13

Wang, Xinkai. "Chinese-English cross-lingual information retrieval in biomedicine using ontology-based query expansion." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/chineseenglish-crosslingual-information-retrieval-in-biomedicine-using-ontologybased-query-expansion(1b7443d3-3baf-402b-83bb-f45e78876404).html.

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In this thesis, we propose a new approach to Chinese-English Biomedical cross-lingual information retrieval (CLIR) using query expansion based on the eCMeSH Tree, a Chinese-English ontology extended from the Chinese Medical Subject Headings (CMeSH) Tree. The CMeSH Tree is not designed for information retrieval (IR), since it only includes heading terms and has no term weighting scheme for these terms. Therefore, we design an algorithm, which employs a rule-based parsing technique combined with the C-value term extraction algorithm and a filtering technique based on mutual information, to extra

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14

Chartrand, Tim. "Ontology-based extraction of RDF data from the World Wide Web /." Diss., CLICK HERE for online access, 2003. http://contentdm.lib.byu.edu/ETD/image/etd168.pdf.

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15

Ngo, Duy Hoa. "Enhancing Ontology Matching by Using Machine Learning, Graph Matching and Information Retrieval Techniques." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20096/document.

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Ces dernières années, les ontologies ont suscité de nombreux travaux dans le domaine du web sémantique. Elles sont utilisées pour fournir le vocabulaire sémantique permettant de rendre la connaissance du domaine disponible pour l'échange et l'interprétation au travers des systèmes d'information. Toutefois, en raison de la nature décentralisée du web sémantique, les ontologies sont très hétérogènes. Cette hétérogénéité provoque le problème de la variation de sens ou ambiguïté dans l'interprétation des entités et, par conséquent, elle empêche le partage des connaissances du domaine. L'alignement

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16

Muthaiyah, Saravanan. "A framework and methodology for ontology mediation through semantic and syntactic mapping." Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3070.

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Thesis (Ph. D.)--George Mason University, 2008.<br>Vita: p. 177. Thesis director: Larry Kerschberg. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Information Technology. Title from PDF t.p. (viewed July 3, 2008). Includes bibliographical references (p. 169-176). Also issued in print.

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17

Deniz, Onur. "Ontology Based Text Mining In Turkish Radiology Reports." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614145/index.pdf.

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Vast amount of radiology reports are produced in hospitals. Being in free text format and having errors due to rapid production, it continuously gets more complicated for radiologists and physicians to reach meaningful information. Though application of ontologies into bio-medical text mining has gained increasing interest in recent years, less work has been offered for ontology based retrieval tasks in Turkish language. In this work, an information extraction and retrieval system based on SNOMED-CT ontology has been proposed for Turkish radiology reports. Main purpose of this work is to uti

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18

Modica, Giovanni. "A framework for automatic ontology generation from autonomous web applications." Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-09032002-165210.

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19

George, David. "Examining the application of modular and contextualised ontology in query expansions for information retrieval." Thesis, University of Central Lancashire, 2010. http://clok.uclan.ac.uk/1865/.

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This research considers the ongoing challenge of semantics-based search from the perspective of how to exploit Semantic Web languages for search in the current Web environment. The purpose of the PhD was to use ontology-based query expansion (OQE) to improve search effectiveness by increasing search precision, i.e. retrieving relevant documents in the topmost ranked positions in a returned document list. Query experiments have required a novel search tool that can combine Semantic Web technologies in an otherwise traditional IR process using a Web document collection.

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20

Komaragiri, Vivek Chakravarthy. "Application of decision diagrams for information storage and retrieval." Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-04082002-144345.

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21

Ismail, Muhammad, and Attuallah Jan. "Context-based supply of documents in a healthcare process." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Informationsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-18513.

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The more enhanced and reliable healthcare facilities, depend partly on accumulated organizational knowledge. Ontology and semantic web are the key factors in long-term sustainability towards the improvement of patient treatment process. Generally, researchers have the common consensus that knowledge is hard to capture due to its implicit nature, making it hard to manage. Medical professionals spend more time on getting the right information at the right moment, which is already available on intranet/internet. Evaluating the literature is controversial but interesting debates on ontology and se

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22

Travillian, Ravensara S. "Ontology recapitulates phylogeny : design, implementation and potential for usage of a comparative anatomy information system /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/7156.

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23

Caviglia, Karen. "Signature file access methodologies for text retrieval : a literature review with additional test cases /." Online version of thesis, 1987. http://hdl.handle.net/1850/10144.

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24

Skovronski, John. "An ontology-based publish-subscribe framework." Diss., Online access via UMI:, 2006.

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25

Reul, Quentin H. "Role of description logic reasoning in ontology matching." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=186278.

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Semantic interoperability is essential on the Semantic Web to enable different information systems to exchange data. Ontology matching has been recognised as a means to achieve semantic interoperability on the Web by identifying similar information in heterogeneous ontologies. Existing ontology matching approaches have two major limitations. The first limitation relates to similarity metrics, which provide a pessimistic value when considering complex objects such as strings and conceptual entities. The second limitation relates to the role of description logic reasoning. In particular, most ap

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26

Demirsoy, Ali. "Using Semantic Knowledge Management Systems To Overcome Information Overload Problems In Software Engineering." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5727.

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Context. Information overload is an increasingly important problem of our age where the amount of data we have is expanding drastically with the use of digital communication. Information retrieval models are developed to help overcoming this problem with computerized tools. Semantic information retrieval, which means retrieving information based on the interpretations of meanings of the words, is one of these models and started to be used commonly to handle large amount of data in the Internet and in enterprises to overcome information overload problems. Objectives. In this study we investigat

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27

Wang, Wei. "Automated spatiotemporal and semantic information extraction for hazards." Diss., University of Iowa, 2014. https://ir.uiowa.edu/etd/1415.

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This dissertation explores three research topics related to automated spatiotemporal and semantic information extraction about hazard events from Web news reports and other social media. The dissertation makes a unique contribution of bridging geographic information science, geographic information retrieval, and natural language processing. Geographic information retrieval and natural language processing techniques are applied to extract spatiotemporal and semantic information automatically from Web documents, to retrieve information about patterns of hazard events that are not explicitly desc

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28

Kubilay, Mustafa. "Special Index And Retrieval Mechanism For Ontology Based Medical Domain Search Engines." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606470/index.pdf.

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This thesis focuses on index and retrieval mechanism of an ontology based medical domain search engine. First, indexing techniques and retrieval methods are reviewed. Then, a special indexing and retrieval mechanism are introduced. This thesis also specifies the functional requirements of these mechanisms. Finally, an evaluation is given by indicating the positive and negative aspects of mechanisms.

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29

Alazemi, Awatef M. "A new methodology for designing a multi-lingual bio-ontology : an application to Arabic-English bio-information retrieval." Thesis, University of Salford, 2010. http://usir.salford.ac.uk/26507/.

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Ontologies are becoming increasingly important in the biomedical domain since they enable knowledge sharing in a formal, homogeneous and unambiguous way. Furthermore, biological discoveries are being reported at an extremely rapid rate. This new information is found in diverse resources that encompass a broad array of journal articles and public databases associated with different sub-disciplines within biology and medicine in different languages. However, finding relevant multilingual biological dedicated ontology to the digestive system ontology among a large collection of information is rec

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30

Kazadi, Yannick Kazela. "A framework for analysing the complexity of ontology." Thesis, Vaal University of Technology, 2016. http://hdl.handle.net/10352/456.

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M. Tech. (Department of Information and Communication Technology, Faculty of Applied and Computer Sciences), Vaal University of Technology<br>The emergence of the Semantic Web has resulted in more and more large-scale ontologies being developed in real-world applications to represent and integrate knowledge and data in various domains. This has given rise to the problem of selection of the appropriate ontology for reuse, among the set of ontologies describing a domain. To address such problem, it is argued that the evaluation of the complexity of ontologies of a domain can assist in determinin

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31

Zhan, Pei. "An ontology-based approach for semantic level information exchange and integration in applications for product lifecycle management." Online access for everyone, 2007. http://www.dissertations.wsu.edu/Dissertations/Summer2007/P_Zhan_080607.pdf.

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32

Sherman, Steven Jay. "A Process-Oriented Ontology for Representing Software Engineering Project Knowledge." NSUWorks, 2009. http://nsuworks.nova.edu/gscis_etd/302.

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Organizational project knowledge is not being captured, consolidated, and organized, making it difficult to learn from past projects, expose the knowledge of the most experienced people, or share experience across geographic project locations. The lack of an ontology for representing this comprehensive project store inhibits its creation and the development of tools to operate on it. Process-orientation links organizational resources or artifacts with process phases and workflow. A process-orientation in knowledge management can be used to add contextual metadata to knowledge artifacts. Contex

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33

Zhou, Yuanqiu. "Generating Data-Extraction Ontologies By Example." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1115.pdf.

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34

Tian, Ye. "A SYSTEM FOR AUTOMATED CONTENT ORGANIZATION." Case Western Reserve University School of Graduate Studies / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=case1151077709.

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35

Gängler, Thomas. "Semantic Federation of Musical and Music-Related Information for Establishing a Personal Music Knowledge Base." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-72434.

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Music is perceived and described very subjectively by every individual. Nowadays, people often get lost in their steadily growing, multi-placed, digital music collection. Existing music player and management applications get in trouble when dealing with poor metadata that is predominant in personal music collections. There are several music information services available that assist users by providing tools for precisely organising their music collection, or for presenting them new insights into their own music library and listening habits. However, it is still not the case that music consumer

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36

Seher, Indra. "A personalised query expansion approach using context." View thesis, 2007. http://handle.uws.edu.au:8081/1959.7/33427.

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Thesis (Ph.D.)--University of Western Sydney, 2007.<br>A thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy to the College of Health & Science, School of Computing and Mathematics, University of Western Sydney. Includes bibliography.

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37

Vickers, Mark S. "Ontology-Based Free-Form Query Processing for the Semantic Web." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1353.pdf.

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38

Hinderer, Eugene Waverly III. "COMPUTATIONAL TOOLS FOR THE DYNAMIC CATEGORIZATION AND AUGMENTED UTILIZATION OF THE GENE ONTOLOGY." UKnowledge, 2019. https://uknowledge.uky.edu/biochem_etds/43.

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Ontologies provide an organization of language, in the form of a network or graph, which is amenable to computational analysis while remaining human-readable. Although they are used in a variety of disciplines, ontologies in the biomedical field, such as Gene Ontology, are of interest for their role in organizing terminology used to describe—among other concepts—the functions, locations, and processes of genes and gene-products. Due to the consistency and level of automation that ontologies provide for such annotations, methods for finding enriched biological terminology from a set of differen

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39

Caubet, Marc, and Mònica Cifuentes. "Extracting metadata from textual documents and utilizing metadata for adding textual documents to an ontology." Thesis, Växjö universitet, Matematiska och systemtekniska institutionen, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-534.

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The term Ontology is borrowed from philosophy, where an ontology is a systematic account of Existence. In Computer Science, ontology is a tool allowing the effective use of information, making it understandable and accessible to the computer. For these reasons, the study of ontologies gained growing interest recently. Our motivation is to create a tool able to build ontologies from a set of textual documents. We present a prototype implementation which extracts metadata from textual documents and uses the metadata for adding textual documents to an ontology. In this paper we will investigate w

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40

Zitzelberger, Andrew J. "HyKSS: Hybrid Keyword and Semantic Search." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2832.

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The rapid production of digital information makes the task of locating relevant information increasingly difficult. Keyword search alleviates this difficulty by retrieving documents containing keywords of interest. However, keyword search suffers from a number of issues such ambiguity, synonymy, and the inability to handle semantic constraints. Semantic search helps resolve these issues but is limited by the quality of annotations which are likely to be incomplete or imprecise. Hybrid search, a search technique that combines the merits of both keyword and semantic search, appears to be a promi

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41

Hamilton, John, Ronald Fernandes, Timothy Darr, Michael Graul, Charles Jones, and Annette Weisenseel. "A Model-Based Methodology for Managing T&E Metadata." International Foundation for Telemetering, 2009. http://hdl.handle.net/10150/606019.

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ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>In this paper, we present a methodology for managing diverse sources of T&E metadata. Central to this methodology is the development of a T&E Metadata Reference Model, which serves as the standard model for T&E metadata types, their proper names, and their relationships to each other. We describe how this reference model can be mapped to a range's own T&E data and process models to provide a s

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42

Kosonen, Heikki M. "The internationalization of industrial systems suppliers : a case study of the internationalization process of industrial systems suppliers with special emphasis on strategy and organization /." Helsinki : Helsinki School of Economics and Business Administration, 1991. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=005933726&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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43

Cimiano, Philipp. "Ontology learning and population from text : algorithms, evaluation and applications /." New York, NY : Springer, 2006. http://www.loc.gov/catdir/enhancements/fy0824/2006931701-d.html.

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44

MATONGO, Tanguy, and Auriol DEGBELO. "APPLYING ENTERPRISE MODELS AS INTERFACE FOR INFORMATION SEARCHING." Thesis, Jönköping University, JTH, Computer and Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-11091.

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<p>Nowadays, more and more companies use Enterprise Models to integrate and coordinate their business processes with the aim of remaining competitive on the market. Consequently, Enterprise Models play a critical role in this integration enabling to improve the objectives of the enterprise, and ways to reach them in a given period of time. Through Enterprise Models, companies are able to improve the management of their operations, actors, processes and also to improve communication within the organisation.</p><p>This thesis describes another use of Enterprise Models. In this work, we intend to

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45

Sánchez, David. "Domain ontology learning from the web an unsupervised, automatic and domain independent approach." Saarbrücken VDM Verlag Dr. Müller, 2007. http://d-nb.info/991459016/04.

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46

Duranti, Cleber Marchetti. "Seleção de notícias online para inteligência competitiva: uso de ontologia de domínio do negócio para expansão semântica da busca na internet." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/12/12139/tde-08112013-190539/.

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DURANTI, Cleber Marchetti. Seleção de notícias online para inteligência competitiva - Uso de ontologia de domínio do negócio para expansão semântica da busca na internet. São Paulo, 2013. Tese (Doutorado em Administração) - Departamento de Administração, Faculdade de Economia, Administração e Contabilidade da Universidade de São Paulo. A internet disponibiliza o acesso a notícias e informações em volume crescente a respeito do ambiente em que as empresas operam, e estas precisam se manter a par dos movimentos dos atores do seu mercado de atuação e dos temas pertinentes ao seu negócio para se

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47

Figueiras, Paulo Alves. "A framework for supporting knowledge representation – an ontological based approach." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/7576.

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Dissertação para obtenção do Grau de Mestre em Engenharia Electrotécnica e de Computadores<br>The World Wide Web has had a tremendous impact on society and business in just a few years by making information instantly available. During this transition from physical to electronic means for information transport, the content and encoding of information has remained natural language and is only identified by its URL. Today, this is perhaps the most significant obstacle to streamlining business processes via the web. In order that processes may execute without human intervention, knowledge sources

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48

Kennedy, Alistair. "Automatic genre classification of home pages on the web /." Halifax, N.S. : Dalhousie University, 2004. http://torch.cs.dal.ca/%7Ekennedy/genre%5Fthesis.pdf.

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Thesis (B.C.S.)--Dalhousie University, Halifax.<br>"Submitted in partial fulfillment of the requirements for the degree of bachelor of computer science with honours at Dalhousie University, Halifax, Nova Scotia, April 2004." Includes bibliographical references (p. 33-35). Also available in PDF via the World Wide Web.

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49

Li, Jingxuan. "Mining the Online Social Network Data: Influence, Summarization, and Organization." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1241.

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Online Social Network (OSN) services provided by Internet companies bring people together to chat, share the information, and enjoy the information. Meanwhile, huge amounts of data are generated by those services (they can be regarded as the social media ) every day, every hour, even every minute, and every second. Currently, researchers are interested in analyzing the OSN data, extracting interesting patterns from it, and applying those patterns to real-world applications. However, due to the large-scale property of the OSN data, it is difficult to effectively analyze it. This dissertation fo

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50

Shankar, Arunprasath. "ONTOLOGY-DRIVEN SEMI-SUPERVISED MODEL FOR CONCEPTUAL ANALYSIS OF DESIGN SPECIFICATIONS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1401706747.

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