36 search results - page 2 / 8 » Greedy Recommending Is Not Always Optimal |
EDBT
2008
ACM
14 years 5 months ago
2008
ACM
Many systems such as Tukwila and YFilter combine automaton and algebra techniques to process queries over tokenized XML streams. Typically in this architecture, an automaton is fi...
VLDB
1994
ACM
13 years 9 months ago
1994
ACM
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
JCP
2006
13 years 5 months ago
2006
As the amount of online shoppers grows rapidly, the need of recommender systems for e-commerce sites are demanding, especially when the number of users and products being offered o...
IPPS
2006
IEEE
13 years 11 months ago
2006
IEEE
The problem of data broadcasting over multiple channels consists in partitioning data among channels, depending on data popularities, and then cyclically transmitting them over ea...
TCS
2002
13 years 4 months ago
2002
In a heap model, solid blocks, or pieces, pile up according to the Tetris game mechanism. An optimal schedule is an in nite sequence of pieces minimizing the asymptotic growth rat...