Sciweavers

800 search results - page 99 / 160
» Ranking refinement and its application to information retrie...
Sort
View
SIGECOM
2011
ACM
311views ECommerce» more  SIGECOM 2011»
12 years 11 months ago
The role of social networks in online shopping: information passing, price of trust, and consumer choice
While social interactions are critical to understanding consumer behavior, the relationship between social and commerce networks has not been explored on a large scale. We analyze...
Stephen Guo, Mengqiu Wang, Jure Leskovec
WWW
2011
ACM
13 years 4 months ago
Learning to re-rank: query-dependent image re-ranking using click data
Our objective is to improve the performance of keyword based image search engines by re-ranking their baseline results. To this end, we address three limitations of existing searc...
Vidit Jain, Manik Varma
JCDL
2009
ACM
133views Education» more  JCDL 2009»
14 years 3 months ago
Cost and benefit analysis of mediated enterprise search
The utility of an enterprise search system is determined by three key players: the information retrieval (IR) system (the search engine), the enterprise users, and the service pro...
Mingfang Wu, James A. Thom, Andrew Turpin, Ross Wi...
WWW
2002
ACM
14 years 9 months ago
Probabilistic question answering on the web
Web-based search engines such as Google and NorthernLight return documents that are relevant to a user query, not answers to user questions. We have developed an architecture that...
Dragomir R. Radev, Weiguo Fan, Hong Qi, Harris Wu,...
KDD
2012
ACM
212views Data Mining» more  KDD 2012»
11 years 11 months ago
Fast bregman divergence NMF using taylor expansion and coordinate descent
Non-negative matrix factorization (NMF) provides a lower rank approximation of a matrix. Due to nonnegativity imposed on the factors, it gives a latent structure that is often mor...
Liangda Li, Guy Lebanon, Haesun Park