A system recommending top-k objects for multiple users preferences
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F07%3A00005163" target="_blank" >RIV/00216208:11320/07:00005163 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
A system recommending top-k objects for multiple users preferences
Original language description
We discuss models of user preferences in Web environment. We construct a model for user preference querying over a number of data sources and ordering of answers by a combination of particular attribute rankings. We generalize Fagin?s algorithm in two directions - we develop some new heuristics for top-k search in the model without random access and propose a method of ordering lists of objects by user fuzzy function. To enable different user preferences our system does not require objects to be sorted- instead we use a B+- tree on each of the attribute domains. This leads to a more realistic model of Web services. We implement our methods and heuristics for search of top-k answers into Tokaf middleware framework prototype. We describe experiments with Tokaf and compare different performance measures with some other methods.
Czech name
Systém doporučující k nejlepších objektů vzhledem k preferencím více uživatelů
Czech description
Systém doporučující k nejlepších objektů vzhledem k preferencím více uživatelů
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JC - Computer hardware and software
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Fuzzy systems
ISSN
1098-7584
e-ISSN
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Volume of the periodical
Neuveden
Issue of the periodical within the volume
Neuveden
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
1101-1106
UT code for WoS article
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EID of the result in the Scopus database
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