http://wsdm2013.org/index.php/call-for-papers

WSDM (pronounced "wisdom") is one of the premier conferences covering research in the areas of search and data mining on the Web. The Sixth ACM WSDM Conference will take place in Rome, Italy during February 6-8, 2013. February 4 will be dedicated to the doctoral consortium; whereas February 5 will be dedicated to tutorials, workshops and data challenge.

WSDM publishes original, high quality papers and presentations related to search and data mining on the Web and the Social Web, with an emphasis on practical but principled novel models of search, retrieval and data mining, algorithm design and analysis, economic implications, and in-depth experimental analysis of accuracy and performance.

WSDM 2013 is a highly selective, single track meeting that includes invited talks as well as refereed full papers. Topics covered include but are not limited to:

Web Search
Web dynamics and search
Multifaceted and task-driven search
Multimedia Web search
Security and privacy in Web search and mining
User interfaces and interaction
User and search modeling
Personalized search and ranking
Distributed, meta, and peer-to-peer search
Vertical portals and search
Search quality benchmarking and evaluation
Search result ranking and assistance
Searching social and real-time content
Algorithms and systems for web-scale search
Sponsored Search and Computational Advertising
Web Mining
Web measurements, Web evolution, Web models
Clustering, classification, and summarization of Web data
Opinion mining and sentiment analysis
Multimodal data mining
Data, entity, event and relationship extraction
Sense and entity disambiguation
Data integration and data cleaning
Discovery-driven Web and social network mining
Traffic and log analysis
Algorithms and systems for Web-scale mining

Social Search and Mining
Web measurements, Web evolution, Web models
Clustering, classification, and summarization of Web data
Opinion mining and sentiment analysis
Multimodal data mining
Data, entity, event and relationship extraction
Sense and entity disambiguation
Data integration and data cleaning
Discovery-driven Web and social network mining
Traffic and log analysis
Algorithms and systems for Web-scale mining