Search (312 results, page 16 of 16)

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Abstract

This article presents a novel user-oriented interface for generalised informetric analysis and demonstrates how informetric calculations can easily and declaratively be specified through advanced data modelling techniques. The interface is declarative and at a high level. Therefore it is easy to use, flexible and extensible. It enables end users to perform basic informetric ad hoc calculations easily and often with much less effort than in contemporary online retrieval systems. It also provides several fruitful generalisations of typical informetric measurements like impact factors. These are based on substituting traditional foci of analysis, for instance journals, by other object types, such as authors, organisations or countries. In the interface, bibliographic data are modelled as complex objects (non-first normal form relations) and terminological and citation networks involving transitive relationships are modelled as binary relations for deductive processing. The interface is flexible, because it makes it easy to switch focus between various object types for informetric calculations, e.g. from authors to institutions. Moreover, it is demonstrated that all informetric data can easily be broken down by criteria that foster advanced analysis, e.g. by years or content-bearing attributes. Such modelling allows flexible data aggregation along many dimensions. These salient features emerge from the query interface's general data restructuring and aggregation capabilities combined with transitive processing capabilities. The features are illustrated by means of sample queries and results in the article.

Source

Journal of documentation. 56(2000) no.3, S.250-278

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Abstract

In this paper, we present a novel personalized concept-based search mechanism for the Web of Data based on results categorization. The innovation of the paper comes from combining novel categorization and personalization techniques, and using categorization for providing personalization. In our approach, search results (Linked Open Data resources) are dynamically categorized into Upper Mapping and Binding Exchange Layer (UMBEL) concepts using a novel fuzzy retrieval model. Then, results with the same concepts are grouped together to form categories, which we call conceptlenses. Such categorization enables concept-based browsing of the retrieved results aligned to users' intent or interests. When the user selects a concept lens for exploration, results are immediately personalized. In particular, all concept lenses are personally re-organized according to their similarity to the selected lens. Within the selected concept lens; more relevant results are included using results re-ranking and query expansion, as well as relevant concept lenses are suggested to support results exploration. This allows dynamic adaptation of results to the user's local choices. We also support interactive personalization; when the user clicks on a result, within the interacted lens, relevant lenses and results are included using results re-ranking and query expansion. Extensive evaluations were performed to assess our approach: (i) Performance of our fuzzy-based categorization approach was evaluated on a particular benchmark (~10,000 mappings). The evaluations showed that we can achieve highly acceptable categorization accuracy and perform better than the vector space model. (ii) Personalized search efficacy was assessed using a user study with 32 participants in a tourist domain. The results revealed that our approach performed significantly better than a non-adaptive baseline search. (iii) Dynamic personalization performance was evaluated, which illustrated that our personalization approach is scalable. (iv) Finally, we compared our system with the existing LOD search engines, which showed that our approach is unique.

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Abstract

Academic libraries have long desired one-stop shopping for their customers and, in this electronic age, their customers are demanding it: a way to search from a single point at any physical location, and retrieve information from the library catalog, citations from journal indexes, and full text information from electronic resources. Academic libraries have explored ways to provide this access, as have library vendors of electronic databases, indexes, and integrated online library systems. The various components for a universal common user interface are in use and available, but have yet to be combined into a single system interface, adaptable enough to include any electronic resource, yet still powerful and versatile enough to provide a powerful and expert search engine. This article discusses the integrated facets as well as the system components that should be built into the ideal electronic library interface, taking into account the information needs of everyone from the newest freshman to the most erudite scholar and their expectations with regard to access, functionality and personalization.

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Abstract

Reviews the literature of designing screens (interfaces) in displays for terminals accessing OPACs. Gathers from scattered and specialised sources the basic principles so that librarians at all levels can approach the screen design process with confidence. Discusses the physical screen and general principles; menus, commands, inquiry screens, and messages; and finally, organisational considerations

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Abstract

Determines whether iconic interfaces might work with online public access catalogues (OPACs) and assesses problems which students encounter in using icons. Students from the Uk and France were asked to identify IBM, Mac and hand drawn icons and guess their functions. Mac icons were the easiest to identify and hand drawn icons were the least easy to identify. A number of students failed to guess the icon function second time round. Results suggest that an icon based OPAC interface could be polpular, but would require careful design, particularly for a multilingual interface

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Abstract

Presents the background and reports progress made in the development of 2 view-based searching systems - HIBROWSE and EMBASE, searching Europe's most important biomedical bibliographic databases, and HIBROWSE EPOQUE, improving access to the european Parliament's Online Query System

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Abstract

Current user interfaces for textual database searching leave much to be desired: individually, they are often confusing, and as a group, they are seriously inconsistent. We propose a four- phase framework for user-interface design: the framework provides common structure and terminology for searching while preserving the distinct features of individual collections and search mechanisms. Users will benefit from faster learning, increased comprehension, and better control, leading to more effective searches and higher satisfaction.

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Abstract

The GUI is impacting library application software. Despite this trend, user satisfaction with the GUI has not been documented. The Parke-Davis Pharmaceutical Research Library, USA, undertook a study to determine user satisfaction with the new GUI based Dynix Marquis, as compared with the Dynix Classic OPAC. The study included a survey assessing user satisfaction and a review of overall usage. Survey findings show that the GUI based OPAC was preferred by end users over the text based OPAC. Usage reports supported the survey findings with significantly increased usage after migration

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Abstract

Hypertext systems provide an appealing mechanism for informally browsing databases by traversing selectable links. However, in many fact finding situations string searching is an effective complement to browsing. Describes the application of the signature file method to achieve rapid and convenient strung search in small personal computer hypertext environments. The method has been implemented to a prototype, as well as in a commercial product. Presents performance data for search times and storage space from a commercial hypertext database and discusses user interface issues. Experience with the string search interface indicates that it was used successfully by novice users

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Source

Sprachtechnologie für eine dynamische Wirtschaft im Medienzeitalter - Language technologies for dynamic business in the age of the media - L'ingénierie linguistique au service de la dynamisation économique à l'ère du multimédia: Tagungsakten der XXVI. Jahrestagung der Internationalen Vereinigung Sprache und Wirtschaft e.V., 23.-25.11.2000, Fachhochschule Köln. Hrsg.: K.-D. Schmitz

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Abstract

Seit den 90er Jahren wird intensiv in verschiedensten Projekten an multimodalen Interaktionstechniken und verschiedenartigsten Modalitätskombinationen aus Sprache, Gesten, Mimik, Blickbewegungen etc. geforscht. Man hofft, im Rahmen von multimodalen Interaktionsparadigmen natürlichere, robustere, flexiblere und leistungsfähigere Benutzerschnittstellen gestalten zu können. Traditionelle Entwicklungsansätze f¨ur multimodale Interaktion bieten Implementierungs- und Prototyping-Hilfsmittel und Formalismen zur Spezifikation der Benutzerschnittstelle. Andere Ansätze legen ihren Fokus auf guidelinebasierte Entscheidungsunterstützung für die Anfangsphasen der Anforderungsanalyse. Ziel dieser Arbeit ist es, diese traditionellen Ansätze zu ergänzen. Mit Hilfe von User Interface Patterns - von Mustern erfolgreicher Systemrealisierungen - sollen nicht nur frühe Designphasen, sondern auch spätere Stufen des detaillierten Designs durch konkrete Entscheidungshilfen unterstützt werden. In dieser Arbeit wurde im Rahmen einer Metastudie über die Forschungsliteratur ein Katalog von User Interface Patterns identifiziert. Hierzu wurden allgemeine aus Forschungsergebnissen der Psychologie und Mensch- Maschine-Interaktion abgeleitete Prinzipien, Beschreibungen der im Rahmen von Forschungsprojekten entstandenen multimodalen Prototypen und auf diesen basierende empirische Forschungsergebnisse analysiert. Im Rahmen des praktischen Teils der Arbeit wurden f¨ur zwei Szenarien (PDA und Desktop) jeweils ein Wizard-of-Oz-Prototyp und ein eigenständiger "Stand-alone"-Prototyp zur E-Mail-Kommunikation umgesetzt. Diese Prototypen dienten zunächst zur exemplarischen Verifikation einiger der Patterns. Benutzertests zeigten die Plausibilität und Akzeptanz der eingesetzten Muster, insbesondere der Patterns Sprachkürzel, alternative Eingabemöglichkeiten und sprachgestütztes Formular, auf. Die Untersuchung der Augenbewegungen zeigte, dass Blickbewegungsdaten Hinweise auf Benutzerabsichten bieten können, dies allerdings von der aktuellen Aufgabe abhängt. Hier ist weitere Forschung notwendig, um neue, natürlichere und einfacher zu verwendende multimodale Bedienkonzepte zu entwickeln.