Search (1537 results, page 1 of 77)

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Content

Vgl.: http%3A%2F%2Fcreativechoice.org%2Fdoc%2FHansJonas.pdf&usg=AOvVaw1TM3teaYKgABL5H9yoIifA&opi=89978449.

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Date

6. 5.2017 18:46:22

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Source

http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=5&ved=0CDQQFjAE&url=http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F3131107&ei=HzFWVYvGMsiNsgGTyoFI&usg=AFQjCNE2FHUeR9oQTQlNC4TPedv4Mo3DaQ&sig2=Rlzpr7a3BLZZkqZCXXN_IA&bvm=bv.93564037,d.bGg&cad=rja

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Abstract

Standard library classification systems like Dewey Decimal Classification (DDC), U.S. Library of Congress Classification (LCC), and Universal Decimal Classification (UDC) are internationally known and widely used by libraries as the tools for organizing information. Charles Ammi Cutter's Expansive Classification (EC), James Duff Brown's Subject Classification (SC), Henry E. Bliss' Bibliographic Classification (BC), and S. R. Ranganathan's Colon Classification (CC) also are standard classification systems, but they are less commonly used compared to aforementioned three systems. All these systems are easy to use and convenient for most general collection libraries. However, these systems are not adequate for some special collections. Libraries with rich collections on Islam also face problems while using these systems, although such libraries often use expansions in the original systems for their collections. This paper examines this problem and presents a potential optimal solution. The author collected data, using a semistructured interview technique, from a representative sample of thirty libraries in eight countries with strong collections in Islam. These data were analyzed employing qualitative methods.

Date

10. 9.2000 17:38:22

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Abstract

The successes of information retrieval (IR) in recent decades were built upon bag-of-words representations. Effective as it is, bag-of-words is only a shallow text understanding; there is a limited amount of information for document ranking in the word space. This dissertation goes beyond words and builds knowledge based text representations, which embed the external and carefully curated information from knowledge bases, and provide richer and structured evidence for more advanced information retrieval systems. This thesis research first builds query representations with entities associated with the query. Entities' descriptions are used by query expansion techniques that enrich the query with explanation terms. Then we present a general framework that represents a query with entities that appear in the query, are retrieved by the query, or frequently show up in the top retrieved documents. A latent space model is developed to jointly learn the connections from query to entities and the ranking of documents, modeling the external evidence from knowledge bases and internal ranking features cooperatively. To further improve the quality of relevant entities, a defining factor of our query representations, we introduce learning to rank to entity search and retrieve better entities from knowledge bases. In the document representation part, this thesis research also moves one step forward with a bag-of-entities model, in which documents are represented by their automatic entity annotations, and the ranking is performed in the entity space.

Content

Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Language and Information Technologies. Vgl.: https%3A%2F%2Fwww.cs.cmu.edu%2F~cx%2Fpapers%2Fknowledge_based_text_representation.pdf&usg=AOvVaw0SaTSvhWLTh__Uz_HtOtl3.

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Abstract

Documentary activities are informational operations of selection and representation of objects made from their features and predictable use. In order to make them more dynamic, these activities are carried out systemically, according to institutionally limited (in the sense of social institution) information projects. This organic approach leads to the constitution of information systems, or, more specifically, systems of documentary information, inasmuch as they refer to actions about documents as objects from which information is produced. Thus, systems of documentary information are called documentary systems. This article aims to list and systematize elements with the potential to a generalizing and categorical approach of documentary systems. We approach the systems according to: elements of reference (the documents and their information, the users, and the institutional context); constitutive elements (collection and references); structural elements (constituent units and the relation among them); modes of production (pre or post representation of the document); management aspects (flow of documents and of their information); and, finally, typology (management systems and information retrieval systems). Thus, documentary systems can be considered products due to operations involving objects institutionally limited for the production of collections (virtual or not) and their references, whose objective is the appropriation of information by the user.

Content

Beitrag einer Section "Selected Papers from the 1ST Brazilian Conference on Knowledge Organization And Representation, Faculdade de Ciência da Informação, Campus Universitário Darcy Ribeiro Brasília, DF Brasil, October 20-22, 2011" Vgl.: http://www.ergon-verlag.de/isko_ko/downloads/ko_39_2012_3_h.pdf.

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Abstract

This paper reports on the second part of an initiative of the authors on researching classification systems with the conceptual model defined by the Functional Requirements for Subject Authority Data (FRSAD) final report. In an earlier study, the authors explored whether the FRSAD conceptual model could be extended beyond subject authority data to model classification data. The focus of the current study is to determine if classification data modeled using FRSAD can be used to solve real-world discovery problems in multicultural and multilingual contexts. The paper discusses the relationships between entities (same type or different types) in the context of classification systems that involve multiple translations and /or multicultural implementations. Results of two case studies are presented in detail: (a) two instances of the DDC (DDC 22 in English, and the Swedish-English mixed translation of DDC 22), and (b) Chinese Library Classification. The use cases of conceptual models in practice are also discussed.

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Abstract

This paper presents an overview of the activities of the "Unità di Ricerca presso Terzi" (URT) - "Indexing and classification systems" of the National Research Council (CNR), which deals with research in organization and document management systems, indexing, classification, knowledge, and content management. Particular attention will be focused on the project of the Electronic Health Record Technological Infrastructure (InFSE), in which the URT works on the definition of ontological models, and vocabularies supporting EHR with the aim to build an updated Italian version of a unified medical reporting language. Although current Italian legislation makes mandatory the use of internationally recognized classification systems to help interoperability and exchange of information, the current structure of those systems does not allow their full use in the Italian context. For all these reasons, it is necessary to make some adaptations in the International Classification of Disease 9th Revision terminology, used for diagnosis encoding, and in the Logical Observation Names and Codes, used for encoding laboratory observations.

Date

22. 1.2012 12:55:24

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Abstract

Purpose The purpose of this paper is to propose a method to have more accurate results in comparing performance of the paired information retrieval (IR) systems with reference to the current method, which is based on the mean effectiveness scores of the systems across a set of identified topics/queries. Design/methodology/approach Based on the proposed approach, instead of the classic method of using a set of topic scores, the documents level scores are considered as the evaluation unit. These document scores are the defined document's weight, which play the role of the mean average precision (MAP) score of the systems as a significance test's statics. The experiments were conducted using the TREC 9 Web track collection. Findings The p-values generated through the two types of significance tests, namely the Student's t-test and Mann-Whitney show that by using the document level scores as an evaluation unit, the difference between IR systems is more significant compared with utilizing topic scores. Originality/value Utilizing a suitable test collection is a primary prerequisite for IR systems comparative evaluation. However, in addition to reusable test collections, having an accurate statistical testing is a necessity for these evaluations. The findings of this study will assist IR researchers to evaluate their retrieval systems and algorithms more accurately.

Date

20. 1.2015 18:30:22

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Abstract

A method to develop a prototype domain ontology has been described. The domain selected for the study is Accelerator Driven Systems. This is a multidisciplinary and interdisciplinary subject comprising Nuclear Physics, Nuclear and Reactor Engineering, Reactor Fuels and Radioactive Waste Management. Since Accelerator Driven Systems is a vast topic, select areas in it were singled out for the study. Both qualitative and quantitative methods such as Content analysis, Facet analysis and Clustering were used, to develop the web-based model.

Date

22. 7.2010 19:41:16

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Abstract

The eleventh International ISKO Conference on "Paradigms and Conceptual Systems in Knowledge Organization" was held in Rome, February 23-26, 2010. The proceedings were edited by Claudio Gnoli and Fulvio Mazzocchi and published by Ergon Verlag in 2010. This analysis follows the order of the text of the proceedings, an order prescribed from the abridged scheme for KO literature published in Knowledge Organization, 25, 1998, no. 4, p. 226. Some invited papers, marked with [LR], have been included and are labelled as such in the table of contents. In all, 64 papers were published.

Date

22. 2.2013 12:09:50

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Abstract

In recent years there is growing interest in the study of paranormal phenomenon. A broad area referred to as the Science of Consciousness has emerged as a discipline. This paper is an attempt to map the domain, and examine its coverage in knowledge organization systems. An idea of the facets of the domain is also provided based on an analysis of the published literature with the suggestion that these need to be adequately provided for in systems of knowledge organization.

Source

Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik

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Abstract

We posit that the well-established interaction type "toolbox" currently providing the four interaction types Instructing, Conversing, Manipulating, and Exploring should be expanded to include a fifth interaction type, Responding, that accounts for user engagements in response to a system-initiated engagement request. This expansion reflects that increasingly, smart systems request input from users without having been prompted by them, which is the essence of the existing interaction types. Systems utilizing the Responding interaction type proactively seek input from users in situations where said input is required.

Date

15. 5.2019 19:22:59

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Abstract

To "classify" in Library and Information Sciences (LIS) usually involves an engagement with formally established classification systems, such as the Dewey Decimal Classification. In this research I suggest an alternative path for LIS scholars - one that considers the application of LIS theories about classification to the investigation of everyday life "classification" processes and technologies.

Source

Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik

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Abstract

Argues that Beghtol's (2003) use of the terms "naive classification" and "professional classification" is valid because they are nominal definitions and that the distinction between these two types of classification points up the need for researchers in knowledge organization to broaden their scope beyond traditional classification systems intended for information retrieval. Argues that work by Beghtol (2003), Kwasnik (1999) and Bailey (1994) offer direction for the development of a classification of classifications based on the pragmatic dimensions of extant classification systems. Bezugnahme auf: Beghtol, C.: Naïve classification systems and the global information society. In: Knowledge organization and the global information society: Proceedings of the 8th International ISKO Conference 13-16 July 2004, London, UK. Ed.: I.C. McIlwaine. Würzburg: Ergon Verlag 2004. S.19-22. (Advances in knowledge organization; vol.9)

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Abstract

Ideally, intersystem relations complement highly expressive and thoroughly structured relational indexing languages. The relational structures of the participating systems contribute to the meaning of the individual terms or classes. When conceptualizing mapping relations the structural and functional design of the respective systems must be fully taken into account. As intersystem relations may differ considerably from familiar interconcept relations, the creation of an adequate inventory that is general in coverage and specific in depth demands a deep understanding of the requirements and properties of mapping relations. The characteristics of specific mapping relations largely rely on the characteristics of the systems they are intended to connect. The detailed declaration of differences and peculiarities of specific mapping relations is an important prerequisite for modelling these relations. First approaches towards specifying

Date

22. 7.2010 17:11:51

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Abstract

Result clustering has recently attracted a lot of attention to provide the users with a succinct overview of relevant search results than traditional search engines. This chapter proposes a mixed clustering method to organize all returned search results into a hierarchical tree structure. The clustering method accomplishes two main tasks, one is label construction and the other is tree building. This chapter uses precision to measure the quality of clustering results. According to the results of experiments, the author preliminarily concluded that the performance of the system is better than many other well-known commercial and academic systems. This chapter makes several contributions. First, it presents a high performance system based on the clustering method. Second, it develops a divisive hierarchical clustering algorithm to organize all returned snippets into hierarchical tree structure. Third, it performs a wide range of experimental analyses to show that almost all commercial systems are significantly better than most current academic systems.

Date

17. 4.2012 15:22:11

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Content

Inhalt: Keynote address - Order and KO - Conceptology in KO - Mathematics in KO - Psychology and KO - Science and KO - Problems in KO - KOS general questions - KOS structure and elements, facet analysis - KOS construction - KOS Maintenance, updating and storage - Compatibility, concordance, interoperability between indexing languages - Theory of classing and indexing - Taxonomies in communications engineering - Special KOSs in literature - Special KOSs in cultural sciences - General problems of natural language, derived indexing, tagging - Automatic language processing - Online retrieval systems and technologies - Problems of terminology - Subject-oriented terminology work - General problems of applied classing and indexing, catalogues, guidelines - Classing and indexing of non-book materials (images, archives, museums) - Personas and institutions in KO, cultural warrant - Organizing team - List of contributors

Date

22. 2.2013 12:09:34

Footnote

Vgl.: Williamson, N.J.: Paradigms and conceptual systems in knowledge organization, the Eleventh International ISKO Conference, Rome, 2010. In: Knowledge organization. 40(2013) no.1, S.42-49.

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Abstract

Recent approaches to KO have explored the notion of intertextuality and considered ways in which such abstract concepts derived from literary theory might form the foundation for the design of novel and rich information retrieval systems. In this paper, the notion of intertextuality is examined, and its use by knowledge organization researchers explored. Gerard Genette's work in particular has been used with some success to map out the possibilities offered by applying the concept of intertextuality to the design of information retrieval systems. The paper will examine some KO systems which reveal the traces of intertextual poetics in their design, including the FRBR model which in its mapping of intertextuality, articulates some of Genette's categories while stopping short of actualising the more subjective and interpretative categories. The paper concludes with speculation about whether and how these categories might be accommodated in a Web 2.0 interactive digital bibliosphere.

Source

Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik

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Abstract

This paper presents a crowd-sourced classification of knowledge organization systems based on open knowledge base Wikidata. The focus is less on the current result in its rather preliminary form but on the environment and process of categorization in Wikidata and the extraction of KOS from the collaborative database. Benefits and disadvantages are summarized and discussed for application to knowledge organization of other subject areas with Wikidata.

Pages

S.15-22

Source

Proceedings of the 15th European Networked Knowledge Organization Systems Workshop (NKOS 2016) co-located with the 20th International Conference on Theory and Practice of Digital Libraries 2016 (TPDL 2016), Hannover, Germany, September 9, 2016. Edi. by Philipp Mayr et al. [http://ceur-ws.org/Vol-1676/=urn:nbn:de:0074-1676-5]