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258
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SIGIR
2012
ACM
13 years 9 months ago
2012
ACM
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
342
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SIGIR
2012
ACM
13 years 9 months ago
2012
ACM
People are seldom aware that their search queries frequently mismatch a majority of the relevant documents. This may not be a big problem for topics with a large and diverse set o...
246
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SIGIR
2012
ACM
13 years 9 months ago
2012
ACM
Many important search tasks require multiple search sessions to complete. Tasks such as travel planning, large purchases, or job searches can span hours, days, or even weeks. Inev...
231
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STOC
2012
ACM
13 years 9 months ago
2012
ACM
We develop a game-theoretic framework for the study of competition between firms who have budgets to “seed” the initial adoption of their products by consumers located in a s...
246
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STOC
2012
ACM
13 years 9 months ago
2012
ACM
We obtain a characterization of feasible, Bayesian, multi-item multi-bidder mechanisms with independent, additive bidders as distributions over hierarchical mechanisms. Combined w...