Sciweavers

1254 search results - page 141 / 251
» Making Hard Problems Harder
Sort
View
KDD
2006
ACM
272views Data Mining» more  KDD 2006»
14 years 10 months ago
YALE: rapid prototyping for complex data mining tasks
KDD is a complex and demanding task. While a large number of methods has been established for numerous problems, many challenges remain to be solved. New tasks emerge requiring th...
Ingo Mierswa, Michael Wurst, Ralf Klinkenberg, Mar...
PODS
2004
ACM
158views Database» more  PODS 2004»
14 years 10 months ago
Composing Schema Mappings: Second-Order Dependencies to the Rescue
A schema mapping is a specification that describes how data structured under one schema (the source schema) is to be transformed into data structured under a different schema (the...
Ronald Fagin, Phokion G. Kolaitis, Lucian Popa, Wa...
WSDM
2010
ACM
166views Data Mining» more  WSDM 2010»
14 years 7 months ago
Ranking Mechanisms in Twitter-Like Forums
We study the problem of designing a mechanism to rank items in forums by making use of the user reviews such as thumb and star ratings. We compare mechanisms where forum users rat...
Anish Das Sarma, Atish Das Sarma, Sreenivas Gollap...
WSDM
2010
ACM
245views Data Mining» more  WSDM 2010»
14 years 7 months ago
Improving Quality of Training Data for Learning to Rank Using Click-Through Data
In information retrieval, relevance of documents with respect to queries is usually judged by humans, and used in evaluation and/or learning of ranking functions. Previous work ha...
Jingfang Xu, Chuanliang Chen, Gu Xu, Hang Li, Elbi...
MICRO
2009
IEEE
144views Hardware» more  MICRO 2009»
14 years 4 months ago
Characterizing flash memory: anomalies, observations, and applications
Despite flash memory’s promise, it suffers from many idiosyncrasies such as limited durability, data integrity problems, and asymmetry in operation granularity. As architects, ...
Laura M. Grupp, Adrian M. Caulfield, Joel Coburn, ...