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WWW
2011
ACM
13 years 2 months ago
2011
ACM
As information technology supports more aspects of modern life, digital access has become an important tool for developing regions to lift themselves from poverty. Though broadban...
INFOCOM
2011
IEEE
12 years 11 months ago
2011
IEEE
—Top-k query has long been an important topic in many fields of computer science. Efficient implementation of the top-k queries is the key for information searching. With the n...
ICDCS
2011
IEEE
12 years 7 months ago
2011
IEEE
—In this paper, we propose E-Shadow, a distributed mobile phone-based local social networking system. E-Shadow has two main components: (1) Local profiles. They enable EShadow u...
Publication
Non-negative matrix factorization (NMF) has become a standard tool in data mining, information retrieval, and signal processing. It is used to factorize a non-negative data matrix ...
WSDM
2012
ACM
12 years 3 months ago
2012
ACM
This paper presents a novel opinion mining research problem, which is called Contrastive Opinion Modeling (COM). Given any query topic and a set of text collections from multiple ...