441 search results - page 85 / 89 » Query expansion using random walk models |
FQAS
2009
Springer
14 years 4 months ago
2009
Springer
The bag of words representation (BoW), which is widely used in information retrieval (IR), represents documents and queries as word lists that do not express anything about context...
ICALP
2004
Springer
14 years 3 months ago
2004
Springer
We define a natural notion of efficiency for approximate nearest-neighbor (ANN) search in general n-point metric spaces, namely the existence of a randomized algorithm which answ...
STOC
2005
ACM
14 years 10 months ago
2005
ACM
This paper explores what kinds of information two parties must communicate in order to correct errors which occur in a shared secret string W. Any bits they communicate must leak ...
ICDE
2007
IEEE
14 years 11 months ago
2007
IEEE
Recent work on distributed, in-network aggregation assumes a benign population of participants. Unfortunately, modern distributed systems are plagued by malicious participants. In...
GIS
2008
ACM
14 years 11 months ago
2008
ACM
In this paper, we describe a methodology to estimate the geographic coverage of the web without the need for secondary knowledge or complex geo-tagging. This is achieved by random...