Search (77 results, page 1 of 4)

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Abstract

View based searching and multi view searching using HIBROWSE proposes a new paradigm for information retrieval from bibliographic databases and database management systems. The paradigm replaces command line and form based interaction with query specification and interaction which requires the user to identify views relating to query facets of the subject of their query. Attempted to apply techniques from human-computer interaction design in the development, construction and usability evaluation of a view based searching system for a very large bibliographic database. As the development of the HIBROWSE system had been in progress before usability became a major concern, as well as the class of system being developed, greater progress towards improved usability was made by adopting a less structured development life-cycle. Examined the usefulness of a number of usability evaluation methods in the context of trying to determine the usability of designs in interactive information retrieval systems. Measurement of the subjective usability of prototypes reinforced the finding of users' difficulties in forming a useful account of the system behaviour and functionality from the training material provided, highlighted some aspects of the system that could be improved, and the greater usability of the HIBROWSE prototypes over an extant commercial bibliographic database system

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Abstract

Reports the findings of a study, conducted by Temple, Barker and Sloane Inc., MA, which identified 7 measurable benefits of graphic user interfaces to computerized information retrieval systems; higher speed; more accurate work; higher productivity; less frustration; less fatigue, more facilities to self teach and explore system; greater facilities for novices to learn more about the system's capabilities. Concludes that, when compared with character based user interfaces, graphic user interfaces generate higher work outputs per work hour through higher productivity; higher work output per employee through lower levels of frustration and fatigue; and greater returns on information technology investment through reduced demand for user training

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Abstract

We describe a prototype Information Retrieval system; SENTINEL, under development at Harris Corporation's Information Systems Division. SENTINEL is a fusion of multiple information retrieval technologies, integrating n-grams, a vector space model, and a neural network training rule. One of the primary advantages of SENTINEL is its 3-dimensional visualization capability that is based fully upon the mathematical representation of information with SENTINEL. The 3-dimensional visualization capability provides users with an intuitive understanding, with relevance/query refinement techniques athat can be better utilized, resulting in higher retrieval precision

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Abstract

Discusses the need for tailorable user interfaces, in particular for Web-based systems. User interfaces need to be configurable by the end users to match their skills and work requirements. Describes what configurability has been induced by user feedback and how tailorability for various degrees of user skills was integrated and implemented in the BSCW Shared Workspace system, a Web-based groupware tool

Date

1. 8.1996 22:08:06

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Abstract

Describes SIFT (Search in Free Text) an information retrieval system originally developed for administering governmental documents in Norway but which is now being applied alsewhere. SIFT handles structured information well. A library system, SIFT-BIBL, is now available. SIFT's retrieval engine and search facilities are powerful. Its user interface is limited but being imporved. An application programmer interface has been released which will allow programmers to develop their own interface. A Windows-based- client-server version is now being beta tested

Date

23. 1.1999 19:22:09

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Abstract

Ovid has supported a sophisticated interface for searching bibliographic and full text databases for some time. It is now offering a Web based version of this interface that is capable of accessing Z39.50-compliant OPACs and databases anywhere in the world. The Ovid Web Gateway builds on the Ovid Server, thus allowing for a variety of functions and configurations at user, group and database-specific level. The Web Gateway has a selection of download formats and delivery options

Date

6. 3.1997 16:22:15

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Abstract

Reports on the design of a GUI for the Okapi 'best match' retrieval system developed at the Centre for Interactive Systems Research, City University, UK, for online library catalogues. The X-Windows interface includes an interactive query expansion (IQE) facilty which involves the user in the selection of query terms to reformulate a search. Presents the design rationale, based on a game board metaphor, and describes the features of each of the stages of the search interaction. Reports on the early operational field trial and discusses relevant evaluation issues and objectives

Source

Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon

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Abstract

Describes the development, by the Faculty of Computer Science and Information Technology, Malaya University, of ONLIS (Online Library Information System), a customized user interface for coputerized MARC cataloguing and information retrieval, targeted for use in small libraries and information centres. Micro CDS/ISIS ver. 3.07 software package and its built in PAscal language were used for the design process and development. Design philosophy centres on the development of a very user friendly and simple interface, capable of mimicking the salient features of a contemporary commercial library package, yet easy to implement and maintain in a small library environment requiring little or no technical expertise. The system incorporates many new features and comprises 2 main components: data entry and file maintenace; and information retrieval. A security system is incorporated into the former environment to ensure data integrity and regulate important file maintenance tasks. While the system is ready for immediate implementation in libraries, modifications and enhancements are currently being undertaken to make it a truly reliable product. Concludes that some degree of user training in MARC and cataloguing using AACR2 is necessary to get the maximum benefits from the systems

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Abstract

With the many choices that can be built into information systems, it is possible to customize such systems for users, based on the tasks that users are accomplishing, on the personal characteristics of users, or a combination of these factors. Reports results of an experiment which detailed logging of use of experimental information systems and was used to determine the optimal configuration of these systems for each user. 4 experimental systems were specially designed and all used a single database of 668 bibliographic records. Tasks were varied, and the cognitive abilities of users were tested to assess one important personal characteristic. Results showed that it was possible to create an optimal configuration to match the cognitive abilities of users, but that it was more difficult to assess which configuration was the best match for specific tasks. The person in task interaction proved to be the least powerful indicator of design configurations. These results suggest that usable information systems can be created for users by careful analysis of the interaction of design features with personal characteristics such as cognitive abilities

Source

Online and CD-ROM review. 22(1998) no.3, S.139-153

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Abstract

Describes a WWW based system which allows users to view, search and post geographically indexed information of the Earth. 2 geographic browsers have been developed: a 2D map browser capable of continuous scroll and zoom of an arbitrarily large sheet and a 3D flight-simulator browser capable of continuous flight around the Earth. On the server side, a geographical and geometrical server has been developed which contains large databases of images, elevations, lines, points and polygons stored in tiles structured into hierarchical pyramids or quadtrees. A metadata server has also been developed which contains URL pointers and geographical coordinates of various WWW documents, geographical information and geometrical models

Date

1. 8.1996 22:08:06

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Source

Knowledge-based systems. 10(1998) no.5, S.263-319

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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

Reports results of an evaluation study of 3 WWW based prototypes for bibliographic displays developed as part of an ongoing research project at the Faculty of Information Studies, Toronto University. The development of these prototypes builds upon results obtained in earlier phases of the project that addressed issues of both the content and form of bibliographic displays in OPACs. Anticipation of continued growth in the number of catalogues available through the WWW, combined with research evidence that existing Web based displays have not shown improvement over their text based counterparts, motivated the development of these prototypes for use on the Web. Reports findings from a focus group evaluation of the 3 prototypes and makes suggestions for future research

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Abstract

The design and development of the Open Agent Architecture (OAA) system has focused on providing access to agent-based applications, through an intelligent, cooperative, distributed, and multimodal agent-based interface. Only the primary user interface agents need run on the local computer, thereby simplifying the task of using a range of applications from a variety of platforms, especially low-powered computers. An important consideration in the design of the OAA was to facilitate the reuse of agents in new and unanticipated applications and to support rapid prototyping. The utility of the agents and tools developed has been demonstrated by their use as infrastructure in unrelated projects

Source

Knowledge-based systems. 10(1998) no.5, S.295-303

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Abstract

Proposes a method of organizing documents based on the concepts of aggregation and hierarchies and a graphical user interface to provide a more intuitive form of Boolean query. The design is based on mapping the nodes of the aggregation hierarchy to Boolean intersection operations, mapping the nodes of the generalization hierarchy Boolean intersection operations (?), and providing a concrete, graphical, manipulable representation of both these node types. A working prototype interface was constructed and evaluated experimentally using 16 subjects against a classical command-line Boolean query interface. The graphical interface produced less than one-tenth of the errors of the textual interface, on average. Significant differences in time spent specifying queries were not found. Makes observations and comments to provide guidance for designers

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Abstract

The DIALOG Coorporation, CA, have annonced DialogSelect 2.0, a WWW based, guided search service with access to over 300 of the most popular DIALOG databases

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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

Describes a study of individuals' spatial navigation strategies and a number of performance and preference measures with regard to the design of a 3D visualisation. The underlying semantic space of the user interface consists of a collection of papers from the 3 most recent ACM SIGCHI conference proceedings, visualised as a virtual reality network. This network was automatically constructed based on semantic similarities derived from latent semantic analysis. The project studied the search strategies and general preferences of 11 subjects who used this system to find papers on various topics. The findings should be valuable for designers and evaluators of 3D user interfaces. The results highlight the importance of structural elements in the design of a semantically based user interface, because search strategies of users relied heavily on these mechanisms in the design. Describes the implications for user interface design based on users' psychological models of a semantic space

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Abstract

Traces the improvements in the capability of microcomputers to support graphics as they have led to improved, graphics and menu based interfaces for OPACs. Presents a state of the art review covering the development of OPAC screens, OPAC front end design; and the planning and implementation of OPAC front ends

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Abstract

Reports the launch of STN Easy: a WWW based online service that provides user friendly access to the STN information network, covering 24 science, technology and medical databases