Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.
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1Kim, Y. ; Seo, J. ; Croft, W.B. ; Smith, D.A.: Automatic suggestion of phrasal-concept queries for literature search.
In: Information processing and management. 50(2014) no.4, S.568-583.
Abstract: Both general and domain-specific search engines have adopted query suggestion techniques to help users formulate effective queries. In the specific domain of literature search (e.g., finding academic papers), the initial queries are usually based on a draft paper or abstract, rather than short lists of keywords. In this paper, we investigate phrasal-concept query suggestions for literature search. These suggestions explicitly specify important phrasal concepts related to an initial detailed query. The merits of phrasal-concept query suggestions for this domain are their readability and retrieval effectiveness: (1) phrasal concepts are natural for academic authors because of their frequent use of terminology and subject-specific phrases and (2) academic papers describe their key ideas via these subject-specific phrases, and thus phrasal concepts can be used effectively to find those papers. We propose a novel phrasal-concept query suggestion technique that generates queries by identifying key phrasal-concepts from pseudo-labeled documents and combines them with related phrases. Our proposed technique is evaluated in terms of both user preference and retrieval effectiveness. We conduct user experiments to verify a preference for our approach, in comparison to baseline query suggestion methods, and demonstrate the effectiveness of the technique with retrieval experiments.
Inhalt: Vgl.: doi: 10.1016/j.ipm.2014.03.003.
2Smith, D.A. ; Shadbolt, N.R.: FacetOntology : expressive descriptions of facets in the Semantic Web.
Abstract: The formal structure of the information on the Semantic Web lends itself to faceted browsing, an information retrieval method where users can filter results based on the values of properties ("facets"). Numerous faceted browsers have been created to browse RDF and Linked Data, but these systems use their own ontologies for defining how data is queried to populate their facets. Since the source data is the same format across these systems (specifically, RDF), we can unify the different methods of describing how to quer the underlying data, to enable compatibility across systems, and provide an extensible base ontology for future systems. To this end, we present FacetOntology, an ontology that defines how to query data to form a faceted browser, and a number of transformations and filters that can be applied to data before it is shown to users. FacetOntology overcomes limitations in the expressivity of existing work, by enabling the full expressivity of SPARQL when selecting data for facets. By applying a FacetOntology definition to data, a set of facets are specified, each with queries and filters to source RDF data, which enables faceted browsing systems to be created using that RDF data.
Anmerkung: Volltext unter: ..\http://eprints.soton.ac.uk/345363/1/paper.pdf.
Themenfeld: Wissensrepräsentation ; Semantisches Umfeld in Indexierung u. Retrieval ; Semantic Web
Objekt: RDF ; FacetOntology
3Smith, D.A.: Exploratory and faceted browsing over heterogeneous and cross-domain data sources..
Southampton : University, Faculty of Physical and Applied Sciences, Electronics and Computer Science, 2011. XII, 178 S.
Abstract: Exploration of heterogeneous data sources increases the value of information by allowing users to answer questions through exploration across multiple sources; Users can use information that has been posted across the Web to answer questions and learn about new domains. We have conducted research that lowers the interrogation time of faceted data, by combining related information from different sources. The work contributes methodologies in combining heterogenous sources, and how to deliver that data to a user interface scalably, with enough performance to support rapid interrogation of the knowledge by the user. The work also contributes how to combine linked data sources so that users can create faceted browsers that target the information facets of their needs. The work is grounded and proven in a number of experiments and test cases that study the contributions in domain research work.
Inhalt: Vgl. unter: http://eprints.ecs.soton.ac.uk/22531/.
Anmerkung: A thesis submitted in partial fulfillment for the degree of Doctor of Philosophy. June 2011.
Themenfeld: Semantische Interoperabilität ; Semantic Web
4Godby, C.J. ; Smith, D. ; Childress, E.: Encoding application profiles in a computational model of the crosswalk.
In: Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas. Göttingen : Univ.-Verl., 2008. S.3-13.
Abstract: OCLC's Crosswalk Web Service (Godby, Smith and Childress, 2008) formalizes the notion of crosswalk, as defined in Gill,et al. (n.d.), by hiding technical details and permitting the semantic equivalences to emerge as the centerpiece. One outcome is that metadata experts, who are typically not programmers, can enter the translation logic into a spreadsheet that can be automatically converted into executable code. In this paper, we describe the implementation of the Dublin Core Terms application profile in the management of crosswalks involving MARC. A crosswalk that encodes an application profile extends the typical format with two columns: one that annotates the namespace to which an element belongs, and one that annotates a 'broader-narrower' relation between a pair of elements, such as Dublin Core coverage and Dublin Core Terms spatial. This information is sufficient to produce scripts written in OCLC's Semantic Equivalence Expression Language (or Seel), which are called from the Crosswalk Web Service to generate production-grade translations. With its focus on elements that can be mixed, matched, added, and redefined, the application profile (Heery and Patel, 2000) is a natural fit with the translation model of the Crosswalk Web Service, which attempts to achieve interoperability by mapping one pair of elements at a time.
Inhalt: Vgl. unter: http://dcpapers.dublincore.org/ojs/pubs/article/view/914/910.
Themenfeld: Semantische Interoperabilität ; Metadaten
Objekt: Dublin Core
5Maze, S. ; Moxley, D. ; Smith, D.J.: Authoritative guide to Web search engines.
New York : Neal-Schuman, 1997. XI,178 S.
Abstract: Beschreibung der Funktionsweise und der jeweiligen Abfragemöglichkeiten verschiedener Suchmaschinen des WWW
Anmerkung: Rez. in: JASIS 49(1998) no.7, S.672 (C. Schwartz), Database 21(1998) no.2, S.92 (D.L. Wiley)
Objekt: WebCrawler ; Lycos ; Infoseek ; OpenText ; AltaVista ; Excite ; HotBot ; Yahoo ; Magellan ; Argus Clearinghouse
Hilfsmittel: WWW Virtual Library
6Smith, D.A.: Use of a thesaurus in two-stage information retrieval of electronic records.
In: Proceedings of the DLM-Forum on Electronic Records, Brussels, 18-20 December 1996. Luxembourg : Office for Official Publications of the European Communities, 1996. S.297-304.
Themenfeld: Konzeption und Anwendung des Prinzips Thesaurus
Behandelte Form: Elektronische Dokumente
7Smith, J.B. ; Smith, D.K. ; Kupstas, E.: Automated protocol analysis.
In: Human-computer interaction. 8(1993) no.2, S.101-145.
Abstract: Describes tools developed by the TextLab Research Group at the Univ. of North Carolina for recording user's interactions with graphics based direct manipulation computer systems. Covers tracking users' behaviour, replaying user's sessions from protocol data, modelling users' strategies using cognitive grammars, parsing the sessions and displaying the results in static and animated form. Discusses thinkaloud, keystroke, X-Windows, video protocols and other protocol data
8Smith, D.R.: Collection development for telephone reference.
In: Georgia librarian. 30(1993) no.3, S.64,66-67.
Abstract: The implementation of a telephone reference service involves a serious commitment by the library to expand the accessibility of its materials to the community. To achieve this aim, considerable attention must be paid to collection development in the area of the library's reference materials. Offers useful suggestions for telephone reference collection development based upon the experience gained from setting up successful telephone reference services in 2 different urban public library environments. Concludes that, although different circumstances will dictate different solutions, 3 components should always be present: relevance, accessibility and timeliness
9Smith, D.E.: Reference expert systems : humanizing depersonalized service.
In: Reference librarian. 1989, no.23, S.177-190.
Abstract: The delivery of library reference service can be practically supplemented through the appropriate incorporation and use of software tools commonly reffered to an expert system. The level of support such systems can affort the reference service organisation is dependent on the degree of complexity characteristic of the rule-based programming techniques used to develop a particular system and the size of its knowledge data base. Since most expert systems are designed to simulate the process of problem-solving practiced by an expert in a given field, an expert system designed to fully emulate library reference work must have the potential to respond to a wide subject range of questions with varying degrees of response adequacy. Describes a microcomputer-based reference expert-type system.
10Goldrnan, H. ; Smith, D.M.: Name authority in a NOTIS environment : Auburn University Libraries.
In: Cataloging and classification quarterly. 9(1989) no.3, S.121-131.
Abstract: During the years 1984-85, the arrival of an integrated automated library system (NOTIS) forced Auburn University Libraries to reevaluate the status of its name authority system. Central to the evaluation process was the preservation of the major investment made in the card name authority file as a result of AACR2. To achieve this, a process of migrating the valuable information from the card file into an online environment was developed. The final result of this process was a new authority structure with current and potential capabilities superior to the previous manual system.
Anmerkung: Simultaneously published as Authority Control in the Online Environment: Considerations and Practices