-
MacFarlane, A.; Al-Wabil, A.; Marshall, C.R.; Albrair, A.; Jones, S.A.; Zaphiris, P.: ¬The effect of dyslexia on information retrieval : a pilot study (2010)
0.03
0.027652267 = product of:
0.0829568 = sum of:
0.05466523 = weight(_text_:searching in 3624) [ClassicSimilarity], result of:
0.05466523 = score(doc=3624,freq=6.0), product of:
0.14122958 = queryWeight, product of:
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.03491209 = queryNorm
0.38706642 = fieldWeight in 3624, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.0390625 = fieldNorm(doc=3624)
0.028291566 = product of:
0.056583133 = sum of:
0.056583133 = weight(_text_:etc in 3624) [ClassicSimilarity], result of:
0.056583133 = score(doc=3624,freq=2.0), product of:
0.18910104 = queryWeight, product of:
5.4164915 = idf(docFreq=533, maxDocs=44218)
0.03491209 = queryNorm
0.2992217 = fieldWeight in 3624, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.4164915 = idf(docFreq=533, maxDocs=44218)
0.0390625 = fieldNorm(doc=3624)
0.5 = coord(1/2)
0.33333334 = coord(2/6)
- Abstract
- Purpose - The purpose of this paper is to resolve a gap in the knowledge of how people with dyslexia interact with information retrieval (IR) systems, specifically an understanding of their information-searching behaviour. Design/methodology/approach - The dyslexia cognitive profile is used to design a logging system, recording the difference between two sets of participants: dyslexic and control users. A standard Okapi interface is used - together with two standard TREC topics - in order to record the information searching behaviour of these users. Findings - Using the log data, the differences in information-searching behaviour of control and dyslexic users, i.e. in the way the two groups interact with Okapi, are established and it also established that qualitative information collected (such as experience etc.) may not be able to account for these differences. Evidence from query variables was unable to distinguish between groups, but differences on topic for the same variables were recorded. Users who view more documents tended to judge more documents as being relevant, in terms of either the user group or topic. Session data indicated that there may be an important difference between the number of iterations used in a search between the user groups, as there may be little effect from the topic on this variable. Originality/value - This is the first study of the effect of dyslexia on information search behaviour, and it provides some evidence to take the field forward.
-
Vakkari, P.; Jones, S.; MacFarlane, A.; Sormunen, E.: Query exhaustivity, relevance feedback and search success in automatic and interactive query expansion (2004)
0.01
0.008926794 = product of:
0.053560764 = sum of:
0.053560764 = weight(_text_:searching in 4435) [ClassicSimilarity], result of:
0.053560764 = score(doc=4435,freq=4.0), product of:
0.14122958 = queryWeight, product of:
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.03491209 = queryNorm
0.37924606 = fieldWeight in 4435, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.046875 = fieldNorm(doc=4435)
0.16666667 = coord(1/6)
- Abstract
- This study explored how the expression of search facets and relevance feedback (RF) by users was related to search success in interactive and automatic query expansion in the course of the search process. Search success was measured both in the number of relevant documents retrieved, whether identified by users or not. Research design consisted of 26 users searching for four TREC topics in Okapi IR system, half of the searchers using interactive and half automatic query expansion based on RF. The search logs were recorded, and the users filled in questionnaires for each topic concerning various features of searching. The results showed that the exhaustivity of the query was the most significant predictor of search success. Interactive expansion led to better search success than automatic expansion if all retrieved relevant items were counted, but there was no difference between the methods if only those items recognised relevant by users were observed. The analysis showed that the difference was facilitated by the liberal relevance criterion used in TREC not favouring highly relevant documents in evaluation.
-
Berget, G.; MacFarlane, A.: What Is known about the impact of impairments on information seeking and searching? (2020)
0.01
0.007438996 = product of:
0.044633973 = sum of:
0.044633973 = weight(_text_:searching in 5817) [ClassicSimilarity], result of:
0.044633973 = score(doc=5817,freq=4.0), product of:
0.14122958 = queryWeight, product of:
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.03491209 = queryNorm
0.3160384 = fieldWeight in 5817, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.0390625 = fieldNorm(doc=5817)
0.16666667 = coord(1/6)
- Abstract
- Information seeking and access are essential for users in all walks of life, from addressing personal needs such as finding flights to locating information needed to complete work tasks. Over the past decade or so, the general needs of people with impairments have increasingly been recognized as something to be addressed, an issue embedded both in international treaties and in state legislation. The same tendency can be found in research, where a growing number of user studies including people with impairments have been conducted. The purpose of these studies is typically to uncover potential barriers for access to information, especially in the context of inaccessible search user interfaces. This literature review provides an overview of research on the information seeking and searching of users with impairments. The aim is to provide an overview to both researchers and practitioners who work with any of the user groups identified. Some diagnoses are relatively well represented in the literature (for instance, visual impairment), but there is very little work in other areas (for instance, autism) and in some cases no work at all (for instance, aphasia). Gaps are identified in the research, and suggestions are made regarding areas where further research is needed.
-
MacFarlane, A.: Evaluation of web search for the information practitioner (2007)
0.01
0.0056583136 = product of:
0.03394988 = sum of:
0.03394988 = product of:
0.06789976 = sum of:
0.06789976 = weight(_text_:etc in 817) [ClassicSimilarity], result of:
0.06789976 = score(doc=817,freq=2.0), product of:
0.18910104 = queryWeight, product of:
5.4164915 = idf(docFreq=533, maxDocs=44218)
0.03491209 = queryNorm
0.35906604 = fieldWeight in 817, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.4164915 = idf(docFreq=533, maxDocs=44218)
0.046875 = fieldNorm(doc=817)
0.5 = coord(1/2)
0.16666667 = coord(1/6)
- Abstract
- Purpose - The aim of the paper is to put forward a structured mechanism for web search evaluation. The paper seeks to point to useful scientific research and show how information practitioners can use these methods in evaluation of search on the web for their users. Design/methodology/approach - The paper puts forward an approach which utilizes traditional laboratory-based evaluation measures such as average precision/precision at N documents, augmented with diagnostic measures such as link broken, etc., which are used to show why precision measures are depressed as well as the quality of the search engines crawling mechanism. Findings - The paper shows how to use diagnostic measures in conjunction with precision in order to evaluate web search. Practical implications - The methodology presented in this paper will be useful to any information professional who regularly uses web search as part of their information seeking and needs to evaluate web search services. Originality/value - The paper argues that the use of diagnostic measures is essential in web search, as precision measures on their own do not allow a searcher to understand why search results differ between search engines.
-
Konkova, E.; MacFarlane, A.; Göker, A.: Analysing creative image search information needs (2016)
0.01
0.005260164 = product of:
0.031560984 = sum of:
0.031560984 = weight(_text_:searching in 2833) [ClassicSimilarity], result of:
0.031560984 = score(doc=2833,freq=2.0), product of:
0.14122958 = queryWeight, product of:
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.03491209 = queryNorm
0.22347288 = fieldWeight in 2833, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.0452914 = idf(docFreq=2103, maxDocs=44218)
0.0390625 = fieldNorm(doc=2833)
0.16666667 = coord(1/6)
- Abstract
- Creative professionals in advertising, marketing, design and journalism search for images to visually represent a concept for their project. The main purpose of this paper is to present search facets derived from an analysis of documents known as briefs, which are widely used in creative industries as requirement documents describing information needs. The briefs specify the type of image required, such as the content and context of use for the image and represent the topic from which the searcher builds an image query. We take three main sources-user image search behaviour, briefs, and image search engine search facets-to examine the search facets for image searching in order to examine the following research question-are search facet schemes for image search engines sufficient for user needs, or is revision needed? We found that there are three main classes of user search facet, which include business, contextual and image related information. The key argument in the paper is that the facet "keyword/tag" is ambiguous and does not support user needs for more generic descriptions to broaden search or specific descriptions to narrow their search-we suggest that a more detailed search facet scheme would be appropriate.
-
MacFarlane, A.; Missaoui, S.; Makri, S.; Gutierrez Lopez, M.: Sender vs. recipient-orientated information systems revisited (2022)
0.00
0.0037722092 = product of:
0.022633255 = sum of:
0.022633255 = product of:
0.04526651 = sum of:
0.04526651 = weight(_text_:etc in 607) [ClassicSimilarity], result of:
0.04526651 = score(doc=607,freq=2.0), product of:
0.18910104 = queryWeight, product of:
5.4164915 = idf(docFreq=533, maxDocs=44218)
0.03491209 = queryNorm
0.23937736 = fieldWeight in 607, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.4164915 = idf(docFreq=533, maxDocs=44218)
0.03125 = fieldNorm(doc=607)
0.5 = coord(1/2)
0.16666667 = coord(1/6)
- Abstract
- Purpose Belkin and Robertson (1976a) reflected on the ethical implications of theoretical research in information science and warned that there was potential for abuse of knowledge gained by undertaking such research and applying it to information systems. In particular, they identified the domains of advertising and political propaganda that posed particular problems. The purpose of this literature review is to revisit these ideas in the light of recent events in global information systems that demonstrate that their fears were justified. Design/methodology/approach The authors revisit the theory in information science that Belkin and Robertson used to build their argument, together with the discussion on ethics that resulted from this work in the late 1970s and early 1980s. The authors then review recent literature in the field of information systems, specifically information retrieval, social media and recommendation systems that highlight the problems identified by Belkin and Robertson. Findings Information science theories have been used in conjunction with empirical evidence gathered from user interactions that have been detrimental to both individuals and society. It is argued in the paper that the information science and systems communities should find ways to return control to the user wherever possible, and the ways to achieve this are considered. Research limitations/implications The ethical issues identified require a multidisciplinary approach with research in information science, computer science, information systems, business, sociology, psychology, journalism, government and politics, etc. required. This is too large a scope to deal with in a literature review, and we focus only on the design and implementation of information systems (Zimmer, 2008a) through an information science and information systems perspective. Practical implications The authors argue that information systems such as search technologies, social media applications and recommendation systems should be designed with the recipient of the information in mind (Paisley and Parker, 1965), not the sender of that information. Social implications Information systems designed ethically and with users in mind will go some way to addressing the ill effects typified by the problems for individuals and society evident in global information systems. Originality/value The authors synthesize the evidence from the literature to provide potential technological solutions to the ethical issues identified, with a set of recommendations to information systems designers and implementers.
-
MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004)
0.00
0.0031534042 = product of:
0.018920425 = sum of:
0.018920425 = product of:
0.03784085 = sum of:
0.03784085 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
0.03784085 = score(doc=5108,freq=2.0), product of:
0.1222562 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03491209 = queryNorm
0.30952093 = fieldWeight in 5108, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=5108)
0.5 = coord(1/2)
0.16666667 = coord(1/6)
- Date
- 20. 1.2007 18:30:22
