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1.
Anonymous personalization in collaborative web search 总被引:2,自引:0,他引:2
We present an innovative approach to Web search, called collaborative search, that seeks to cope with the type of vague queries that are commonplace in Web search. We do this by leveraging the search
behaviour of previous searchers to personalize future result-lists according to the implied preferences of a community of
like-minded individuals. This technique is implemented in the I-SPY meta-search engine and we present the results of a live-user
trial which indicates that I-SPY can offer improved search performance when compared to a benchmark search engine, across
a variety of performance metrics. In addition, I-SPY achieves its level of personalization while preserving the anonymity
of individual users, and we argue that this offers unique privacy benefits compared to alternative approaches to personalization. 相似文献
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Walter Hahn Helmut Skowronek H. J. Butcher Hans-Martin Müller-Wolf J. C. Cairns Michael Angermaier Maureen Woodhall Ha Wun Sung Oskar Anweiler John A. Smyth Gilbert de Landsheere Gaby Venstermans Erika Voigt Anza Amen Lema David Wolsk Robert O. Berdahl 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1974,20(1):83-107
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Wenshu GaoRussell Smyth 《Economics of Education Review》2011,30(2):342-352
This article uses data from the China Urban Labour Survey administered across 12 cities in 2005 to estimate the economic returns to speaking standard Mandarin among internal migrants in China's urban labour market. The article builds on studies that estimate the economic returns to international immigrants of being fluent in the major language of the destination country and studies that estimate the economic returns to proficiency in the national language among groups of people who speak a minority language. Importantly, we control for potential endogeneity bias in the estimates of the effect of language fluency on earnings. We find that for migrants as a whole, there are considerable economic returns to speaking standard Mandarin. We also find gender differences. While the coefficient on fluency in standard Mandarin is statistically significant and large for females, the coefficient on fluency is statistically insignificant for males. One possible explanation for this finding is that female migrant workers are engaged more in occupations which have greater contact with urban locals and hence the return to investment in language skills is higher. 相似文献
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