Search (8 results, page 1 of 1)

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Abstract

Purpose A higher level of retrieval relevance along with pertinence is what information systems are required to provide if they are to gain more user satisfaction. Although in almost every IR system, general and non-topical terms are not considered to play a major role in indexing, the underlying assumption of current study stems from the fact that these terms could be effective in better searching by end-users. Thus this paper aims at proposing a new approach in this regard using a small thesaurus of general and non-topical terms which can be used along with queries (i.e., topical keywords). This would help making users' queries closer to natural language. Method In the first phase of this study, a set of 669 non-topical terms, which were identified through a previous study, was assumed as the test bed. Based on the main goal of the present paper, the list was analyzed and divided into major categories. As for the second phase, a preferred label representing each category was selected and assigned based on its "use warrant"; and to this end Google Trends was applied for determining the most-frequent general and non-topical terms among users' web searches. At last the developed thesaurus was tested in searching and the retrieved results were evaluated in terms of relevance and pertinence. Results The findings of this study show that, although there is rather a diverse range of general and non-topical terms appearing before or after topical keywords in Web documents, users are still using no or only a small fracture of them in their search queries. The findings also show that these terms would be of great assistance in providing more relevant results and a meaningful display of the results. This paper then proposes a conceptual model for applying such a thesaurus in searching the Web.

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 new approach to query expansion in search engines through the use of general non-topical terms (NTTs) and domain-specific semi-topical terms (STTs). NTTs and STTs can be used in conjunction with topical terms (TTs) to improve precision in retrieval results. In Phase I, 20 topical queries in two domains (Health and the Social Sciences) were carried out in Google and from the results of the queries, 800 pages were textually analysed. Of 1442 NTTs and STTs identified, 15% were shared between the two domains; 62% were NTTs and 38% were STTs; and approximately 64% occurred before while 36% occurred after their respective topical terms (TTs). Findings of Phase II showed that query expansion through NTTs (or STTs) particularly in the 'exact title' and URL search options resulted in more precise and manageable results. Statistically significant differences were found between Health and the Social Sciences vis-à-vis keyword and 'exact phrase' search results; however there were no significant differences in exact title and URL search results. The ratio of exact phrase, exact title, and URL search result frequencies to keyword search result frequencies also showed statistically significant differences between the two domains. Our findings suggest that web searching could be greatly enhanced combining NTTs (and STTs) with TTs in an initial query. Additionally, search results would improve if queries are restricted to the exact title or URL search options. Finally, we suggest the development and implementation of knowledge-based lists of NTTs (and STTs) by both general and specialized search engines to aid query expansion.

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Abstract

The advent and development of the Internet has changed students' pattern of information seeking behaviors. That is also the case in Iran. The current research was carried out by interviewing with and observing of 20 intermediate girl students to assess their information seeking behavior on the web environment through a qualitative approach. Findings indicate an acceptable level of access to the Internet and vast use of web search engines by the girl students in Tehran. However, students' knowledge of the concept and how search engines work and also about the methods and tools of retrieving information from electronic sources other than the search engines is poor. The study also shows that, compared to the Internet, the role of libraries and librarians are gradually diminishing in fulfilling the students' information needs. Authors recommend that school librarians can provide different instructional and information literacy programs to help students improve their information seeking behavior and their knowledge of the Internet.

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Abstract

Describes a new approach to describing bibliographic entities aimed at fulfilling all the functions of the catalogue in the online environment. While it is assumed that the basic unit of description is the item in hand and records describing items would fulfil the finding, identifying, choosing and locating functions; super records, which are based on the concept of 'super works', would fulfil the collocating function in a more meaningful way. This approach is a solution to the problem of the same work appearing in various manifestations and formats. Super records for voluminous works include attributes that are common to different versions of a work and are linked to bibliographic records for items. Describes a prototype catalogue of super records that has been developed and made available on the Web to introduce the advantages, limitations and possible consequences of the concept on cataloguing principles, MARC and Z39.50

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Abstract

With the ever-increasing developments in information technology and networks, end users of the online environment now have integrated access to a variety of bibliographic databases, mainly library catalogues and A&I services, from a single terminal. While such a facility influences users' expectations and preferences in the searching, retrieval and presentation of bibliographic information, it raises an important question as to whether different bibliographic practices can use a similar or compatible set of principles for creating bibliographic records and files. This paper is an attempt to identify areas of possible reconciliation and also address some of the implications of such an issue.

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Abstract

Purpose - Information, owing to its nature, has numerous capabilities. Through utilizing these capabilities, information systems can add to the value of information. The purpose of this paper is to explain where and how added value emerges from the work processes in library and information professions. Design/methodology/approach - The paper begins with a review of the related literature and then takes a conceptual approach to discuss different values of information and IR systems; elaborates on how each of the processes such as assessment of needs, selection, description/organization, storage/processing, search/retrieval, and dissemination generate capabilities that lead to added value. Findings - The paper identifies that added value is generated through processes such as reproduction, exchange, transfer, refinement, analysis, interpretation, synthesis, and regeneration of information. Many such processes turn information into knowledge. Research limitations/implications - This paper is based on the author's reflections on the matter of added value generated by library and information practice. Further empirical studies are needed to substantiate the extent to which such values are generated through information systems and services in the real world. Practical implications - Librarians and information specialists can find through their working practice how to design systems and services which can generate added value for information. Originality/value - In the present evolving conditions, library and information professionals are able to add to the value of information by sharing their knowledge with the expertise of computer scientists and finding a variety of ways and up-to-date methods of optimizing existing systems, as well as designing new systems. These are the two strategies along which the profession should guide its educational, research and practical endeavors.

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Abstract

Purpose - The purpose of this paper is to provide an evaluation of the existing state of practice in knowledge sharing in university libraries. Design/methodology/approach - This is survey research which is based on an electronic questionnaire. Findings - Results reveal that the majority of libraries investigated are quite friendly towards knowledge sharing, and the majority of librarians value the importance of knowledge sharing. Results also confirm that the knowledge that they mostly use is mainly intangible knowledge. Originality/value - If knowledge-sharing requirements of librarians while collaboratively performing reference and information services can be acknowledged, guidelines for enhancing conceptual collaborative process would be suggested.

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Source

OCLC systems and services. 11(1995) no.3, S.28-38