Searching the Web: operator assistance required

Topi, Heikki; Lucas, Wendy T.

doi:10.1016/s0306-4573(02)00092-4

Cited by 17 publications

(12 citation statements)

References 33 publications

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“…They suggested that even a single search topic could split into various subtopics depending on the nature and complexity of the information need. Topi and Lucas (2005) examined the effects of the search interface and search styles on factors like user performance and satisfaction, which helped discover that the complexity of the search query had a negative effect on the search results and the overall time it took to perform the search task. Nachmias and Gilad (2002) examined the amount of time needed for completing various types of search tasks; results showed that successful searches were concluded in far less time and in fewer actions than unsuccessful searches.…”

Section: Influences and Complexity Of Search Topicsmentioning

confidence: 99%

Situated topic complexity in interactive video retrieval

Albertson¹,

Meadows²

2011

J. Am. Soc. Inf. Sci.

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The overarching goal of this study is to place additional emphasis on the ability to observe, extend, and apply findings across different experimental studies and/or digital projects by providing further insight into some of the broader processes within interactive (user-centered) video retrieval. The variable at the center of this particular investigation included a user-centered definition of topic complexity, or "situated topic complexity," where its influence on other factors within the interactive video process, namely users' actions, satisfaction, performance, and judgments on other topical qualities, was analyzed. Findings revealed that as users' impressions of complexity increased during experimental search topics, search times and the number of user actions also increased, but even more compelling was the fact that users started to convincingly shift away from keyword (transcript) searching, as predominantly used for easy to moderate topics, to categorical and linear browse strategies at a clear point within the interactive process. Different users' assessments, regarding their search experiences, and topic performances were also varied and shown to be significantly correlated with the situated complexity of a given topic. Such findings are relevant to the design of digital libraries in that researchers should continue improving ways to deliver video through keyword search functions, but also further recognize the multidimensionality of video by offering other paths or interface options that provide support for highly complex needs and also for exploring the collection's boundaries on easier topics.

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Section: Influences and Complexity Of Search Topicsmentioning

confidence: 99%

Situated topic complexity in interactive video retrieval

Albertson¹,

Meadows²

2011

J. Am. Soc. Inf. Sci.

View full text Add to dashboard Cite

show abstract

“…This may be because users may not effectively use the operators in the search [10] help too much, as Ruthven [11] pointed out that such interfaces could only help cutting down the number of returned results rather than generating new ideas for the searchers to formulate new queries. Topi and Lucas [12,13] found that although in general the interface supporting advanced search operators could improve search queries, the improvement was not consistent. Also, most Web searchers do not have any professional training on searching.…”

Section: Literature Reviewmentioning

confidence: 98%

Effects of "Advanced Search" on User Performance and Search Efforts: A Case Study with Three Digital Libraries

Zhang¹,

2012

2012 45th Hawaii International Conference on System Sciences

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This study investigated into the effects of the "Advanced search" feature of three digital libraries on users' search performance and search efforts. Three operational digital libraries, i.e., the ACM digital library, the IEEE Computer Society digital library, and the IEEE Xplore digital library, were used in this study. Thirty-five students participated in an experiment and completed the assigned search task, using their preferred search feature(s). The results demonstrate that for ACM and IEEE CS, the use of

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“…Topi and Lucas [23] examined the effects of the search interface and Boolean logic training on user search performance and satisfaction. They compared the use of an assistive search tool to that of a simple search interface like those typically found at commercial search engine sites.…”

Section: Web Searching Tasksmentioning

confidence: 99%

An improved Web search engine for visually impaired users

Yang¹,

Hwang

Schenkman

2011

Univ Access Inf Soc

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The Google search engine was studied as a Web prototype to be modified and improved for blind users. A Specialized Search Engine for the Blind (SSEB) was developed with an accessible interface and improved functions (searching assistance functions, user-centered functions, and specialized design for the blind). An experiment was conducted with twelve participants, both blind and sighted, to verify the effects of SSEB. The performance was better with the SSEB than with the Google search engine, and the participants also showed higher satisfactions with the SSEB. Interface considerations for designing an accessible Web site for blind users are important. The users of SSEB could in the future be expanded to include most, if not all, visually impaired people, since the World Wide Web and all Internet resources should ideally be accessible to everyone.

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Searching the Web: operator assistance required

Cited by 17 publications

References 33 publications

Situated topic complexity in interactive video retrieval

Situated topic complexity in interactive video retrieval

Effects of "Advanced Search" on User Performance and Search Efforts: A Case Study with Three Digital Libraries

An improved Web search engine for visually impaired users

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