Spelling suggestions: "subject:"forminformation retrieval"" "subject:"forminformation etrieval""
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Web Search Using Genetic ProgrammingWu, Jain-Shing 11 September 2002 (has links)
To locate and to retrieve the needed information from the Internet is an important issue. Existing search engines may give too much useless and redundancy information. Due to the search feature is different for different search engines, it¡¦s very difficult to find an optimal search scheme for all subjects. In this paper, we propose a genetic programming web search system (GPWS) to generate exact query according to a user¡¦s interests. The system can retrieve the information from the search engines, filter the retrieved results and remove the redundancy and useless results. The filtered results are displayed on a uniform user interface. Compared with the queries generated by randomly, the degree of similarity of results and user¡¦s interests are improved.
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Optimization Algorithms for Information Retrieval and Transmission in Distributed Ad Hoc NetworksLu, Hong 14 January 2010 (has links)
An ad hoc network is formed by a group of self-configuring nodes, typically
deployed in two or three dimensional spaces, and communicating with each other
through wireless or some other media. The distinct characteristics of ad hoc networks include the lack of pre-designed infrastructure, the natural correlation between
the network topology and geometry, and limited communication and computation
resources. These characteristics introduce new challenges and opportunities for de-
signing ad hoc network applications. This dissertation studies various optimization
problems in ad hoc network information retrieval and transmission.
Information stored in ad hoc networks is naturally associated with its location.
To effectively retrieve such information, we study two fundamental problems, range
search and object locating, from a distance sensitive point of view, where the retrieval
cost depends on the distance between the user and the target information. We develop
a general framework that is applicable to both problems for optimizing the storage
overhead while maintaining the distance sensitive retrieval requirement. In addition,
we derive a lowerbound result for the object locating problem which shows that
logarithmic storage overhead is asymptotically optimal to achieve linear retrieval cost
for growth bounded networks.
Bandwidth is a scarce resource for wireless ad hoc networks, and its proper utilization is crucial to effective information transmission. To avoid conflict of wireless transmissions, links need to be carefully scheduled to satisfy various constraints. In
this part of the study, we first consider an optimization problem of end-to-end on-
demand bandwidth allocation with the single transceiver constraint. We study its
complexity and present a 2-approximation algorithm. We then discuss how to estimate the end-to-end throughput under a widely adopted model for radio signal
interference. A method based on identifying certain clique patterns is proposed and
shown to have good practical performance.
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Verloren im Informationsdschungel : Gebrauchstauglichkeit der Ergebnisseiten von Suchmaschinen /Kaczmirek, Lars. January 2007 (has links)
Universiẗat, Diplomarbeit--Mannheim, 2003.
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A cognition-based framework for the development of visualization literacyVelez-Rojas, Maria C., January 2009 (has links)
Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Electrical and Computer Engineering." Includes bibliographical references (p. 140-146).
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Querying databases privately : a new approach to private information retrieval /Asonov, Dmitri. January 2004 (has links)
Thesis (doctoral) - Humboldt Universität, Berlin, 2003. / Includes bibliographical references and index.
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Emotional aspects of the online information retrieval processLopatovska, Irene, January 2009 (has links)
Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Communication, Information and Library Studies." Includes bibliographical references (p. 154-164).
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Modeling boundaries of influence among positional uncertainity fields /King, Joshua P., January 2002 (has links)
Thesis (M.S.) in Spatial Information Science and Engineering--University of Maine, 2002. / Includes vita. Includes bibliographical references (leaves 101-106).
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A framework for automatic ontology generation from autonomous web applicationsModica, Giovanni. January 2002 (has links)
Thesis (M.S.)--Mississippi State University. Department of Computer Science. / Title from title screen. Includes bibliographical references.
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The influence of retrieval system on the outcomes of ERIC searches by graduate students /Evans, Mary Marcum, January 1995 (has links)
Thesis (Ph. D.)--University of Oklahoma, 1995. / Includes bibliographical references (leaves 79-86).
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Visual search interfaces for online digital repositoriesClarkson, Edward Cantey. January 2009 (has links)
Thesis (Ph.D)--Computing, Georgia Institute of Technology, 2009. / Committee Chair: Foley, James D.; Committee Member: Abowd, Gregory D.; Committee Member: Marchionini, Gary; Committee Member: Potts, Colin; Committee Member: Stasko, John. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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