15 search results - page 2 / 3 » A Simple Linear Ranking Algorithm Using Query Dependent Inte... |
WWW
2011
ACM
13 years 6 days ago
2011
ACM
As context is acknowledged as an important factor that can affect users’ preferences, many researchers have worked on improving the quality of recommender systems by utilizing ...
COCO
2009
Springer
13 years 12 months ago
2009
Springer
We prove two main results on how arbitrary linear threshold functions f(x) = sign(w · x − θ) over the n-dimensional Boolean hypercube can be approximated by simple threshold f...
ERSHOV
2006
Springer
13 years 9 months ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...
NIPS
1997
13 years 6 months ago
1997
There are many applications in which it is desirable to order rather than classify instances. Here we consider the problem of learning how to order, given feedback in the form of ...
CIKM
2007
Springer
13 years 11 months ago
2007
Springer
As one of the most effective query expansion approaches, local feedback is able to automatically discover new query terms and improve retrieval accuracy for different retrieval ...