Can constrained relevance feedback and display strategies help users retrieve items on mobile devices?     

Vishwa Vinay  Ingemar J. Cox  Natasa Milic-Frayling  Ken Wood 《Information Retrieval》2006,9(4):435-453

Searching online information resources using mobile devices is affected by small screens which can display only a fraction of ranked search results. In this paper we investigate whether the search effort can be reduced by means of a simple user feedback: for a screenful of search results the user is encouraged to indicate a single most relevant document. In our approach we exploit the fact that, for small display sizes and limited user actions, we can construct a user decision tree representing all possible outcomes of the user interaction with the system. Examining the trees we can compute an upper limit on relevance feedback performance. In this study we consider three standard feedback algorithms: Rocchio, Robertson/Sparck-Jones (RSJ) and a Bayesian algorithm. We evaluate them in conjunction with two strategies for presenting search results: a document ranking that attempts to maximize information gain from the user’s choices and the top-D ranked documents. Experimental results indicate that for RSJ feedback which involves an explicit feature selection policy, the greedy top-D display is more appropriate. For the other two algorithms, the exploratory display that maximizes information gain produces better results. We conducted a user study to compare the performance of the relevance feedback methods with real users and compare the results with the findings from the tree analysis. This comparison between the simulations and real user behaviour indicates that the Bayesian algorithm, coupled with the sampled display, is the most effective. Extended version of “Evaluating Relevance Feedback Algorithms for Searching on Small Displays, ” Vishwa Vinay, Ingemar J. Cox, Natasa Milic-Frayling, Ken Wood published in the proceedings of ECIR 2005, David E. Losada, Juan M. Fernández-Luna (Eds.), Springer 2005, ISBN 3-540-25295-9  相似文献   

Cataloging Sheet Maps: the Basics: By Paige G. Andrew. Binghamton, NY: Haworth Information Press, 2003. 240 pp. $24.95 soft ISBN 0789014831     

Susan Hamburger 《Library Collections, Acquisitions, and Technical Services》2004,27(4):513-514

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China's statistical system and resources     

Susan Xue 《Journal of Government Information》2004,30(1):87-109

As the People's Republic of China plays an increasingly important role in international politics and trade, countries with economic interests there find they need to know more about this nation. Access to primary information sources, including official statistics from China, however, is very limited, as little exploration has been done into this closely controlled repository of information. This study explores major current statistical sources in China through examining (a) the statistical system in Chinese government, (b) the mechanism of statistical data collection, and (c) what statistical information is currently available in both print and electronic format and at what level. It shows that a wealth of statistical information does exist in China, it is systematically compiled, and it is available, although not conveniently, to the public through various channels. This study can serve the need for China's data from the academic and business communities, contribute to a better understanding of China's statistical system, and serve as a collection tool for academic, public, and corporation libraries as well.  相似文献   

What can we learn from the RoweCom débâcle?     

John Cox 《Learned Publishing》2004,17(3):179-182

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Library as place: results of a delphi study.   总被引：1，自引：0，他引：1  

Logan Ludwig  Susan Starr 《Journal of the Medical Library Association》2005,93(3):315-326

OBJECTIVE: An expert consensus on the future of the library as place was developed to assist health sciences librarians in designing new library spaces. METHOD: An expert panel of health sciences librarians, building consultants, architects, and information technologists was asked to reflect on the likelihood, desirability, timing, and impact on building design of more than seventy possible changes in the use of library space. RESULTS: An expert consensus predicted that the roles librarians play and the way libraries are used will substantially change. These changes come in response to changes in technology, scholarly communication, learning environments, and the health care economy. CONCLUSIONS: How health sciences library space is used will be far less consistent by 2015, as space becomes more tailored to institutional needs. However, the manner in which health sciences libraries develop and deliver services and collections will drastically change in the next decade. Libraries will continue to exist and will provide support for knowledge management and clinical trials, provide access to digital materials, and play a host of other roles that will enable libraries to emerge as institutional change agents.  相似文献   

Crowdfunding for Academic Libraries: Indiana Jones Meets Polka     

Sara Bushong  Susannah Cleveland  Christopher Cox 《The Journal of Academic Librarianship》2018,44(2):313-318

Crowdfunding – or creatively presenting a case for funding to like-minded individuals – is becoming an effective development strategy for academic libraries. The crowdfunding projects described offer multiple approaches to consider, from an adventure-themed video to embracing polka music to entice donors to give. Social media, used in conjunction with the web and well-established email communication formed the basis of successful project promotion. Developing a robust communication plan ahead of campaign launch is critical for success. Thanking donors for their transformational gifts and follow up communication describing the impact of their participation six months later raises friends for the library potentially for many years to come. With proper planning, an active and enthusiastic committee and effective donor stewardship, crowdfunding campaigns will help libraries raise funds to support strategic initiatives.  相似文献   

Exertional heat illness risk factors and physiological responses of youth football players     

Susan W. Yeargin  John J. Dickinson  Dawn M. Emerson  Jessica Koller  Toni M. Torres-McGehee  Zachary Y. Kerr 《运动与健康科学(英文)》2021,10(1):91

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Helen Waddell and Maude Clarke: Irish women,friends and scholars     

Susan M. Parkes 《Irish Educational Studies》2014,33(1):117-118

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Dioramas as a Window for Teaching and Learning in Natural History Museums     

Susan Spero  Lisa Hubbell 《Science & Education》2017,26(6):739-741

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Gender lessons: patriarchy,sextyping & schools     

Susan McCullough 《Gender and education》2016,28(5):703-705

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