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133
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WINE
2007
Springer
15 years 10 months ago
2007
Springer
We present a characterization of empirical price data from sponsored search auctions. We show that simple models drawing bid values independently from a fixed distribution can be...
114
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SIGIR
2003
ACM
15 years 9 months ago
2003
ACM
Hierarchies provide a means of organizing, summarizing and accessing information. We describe a method for automatically generating hierarchies from small collections of text, and...
135
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ISAAC
2003
Springer
15 years 9 months ago
2003
Springer
Abstract. We present a bit-parallel technique to search a text of length n for a regular expression of m symbols permitting k differences in worst case time O(mn/ logk s), where s...
145
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DASFAA
2010
IEEE
15 years 8 months ago
2010
IEEE
xml keyword search provides a simple and user-friendly way of retrieving data from xml databases, but the ambiguities of keywords make it difficult to effectively answer keyword qu...
127
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ERCIMDL
2000
Springer
15 years 7 months ago
2000
Springer
Abstract. This paper describes CAP7, a system for searching and browsing in distributed document (metadata) collections. The system architecture is similar to Harvest, comprising g...