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EMNLP
2009
14 years 7 months ago
Learning Term-weighting Functions for Similarity Measures
Measuring the similarity between two texts is a fundamental problem in many NLP and IR applications. Among the existing approaches, the cosine measure of the term vectors represen...
Wen-tau Yih
IEICET
2008
67views more  IEICET 2008»
14 years 9 months ago
Learning of Finite Unions of Tree Patterns with Internal Structured Variables from Queries
We consider the polynomial time learnability of finite unions of ordered tree patterns with internal structured variables, in the query learning model of Angluin (1988). An ordered...
Satoshi Matsumoto, Takayoshi Shoudai, Tomoyuki Uch...
CIKM
2000
Springer
15 years 2 months ago
A Framework for Modeling Buffer Replacement Strategies
An e ective bu er management system is crucial for any database management system. While much work has been expended to provide extensible data types,extensible query languages an...
Stéphane Bressan, Chong Leng Goh, Beng Chin...
ICDE
2009
IEEE
135views Database» more  ICDE 2009»
15 years 11 months ago
Forward Decay: A Practical Time Decay Model for Streaming Systems
Temporal data analysis in data warehouses and data streaming systems often uses time decay to reduce the importance of older tuples, without eliminating their influence, on the res...
Graham Cormode, Vladislav Shkapenyuk, Divesh Sriva...
SAC
2005
ACM
15 years 3 months ago
Identifying topological predicates for vague spatial objects
Many geographical applications deal with spatial objects that cannot be adequately described by determinate, crisp concepts because of their intrinsically indeterminate and vague ...
Alejandro Pauly, Markus Schneider