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ECIR
2011
Springer
14 years 10 months ago
Classifying with Co-stems - A New Representation for Information Filtering
Besides the content the writing style is an important discriminator in information filtering tasks. Ideally, the solution of a filtering task employs a text representation that m...
Nedim Lipka, Benno Stein
SDM
2011
SIAM
241views Data Mining» more  SDM 2011»
14 years 9 months ago
A Fast Algorithm for Sparse PCA and a New Sparsity Control Criteria
Sparse principal component analysis (PCA) imposes extra constraints or penalty terms to the standard PCA to achieve sparsity. In this paper, we first introduce an efficient algor...
Yunlong He, Renato Monteiro, Haesun Park
IACR
2011
177views more  IACR 2011»
14 years 6 months ago
New attacks on Keccak-224 and Keccak-256
The Keccak hash function is one of the five finalists in NIST’s SHA-3 competition, and so far it showed remarkable resistance against practical collision finding attacks: Afte...
Itai Dinur, Orr Dunkelman, Adi Shamir
CORR
2012
Springer
214views Education» more  CORR 2012»
14 years 2 months ago
Sum-Product Networks: A New Deep Architecture
The key limiting factor in graphical model inference and learning is the complexity of the partition function. We thus ask the question: what are the most general conditions under...
Hoifung Poon, Pedro Domingos
GIS
2007
ACM
16 years 7 months ago
Cluster By: a new sql extension for spatial data aggregation
The development of areas such as remote and airborne sensing, location based services, and geosensor networks enables the collection of large volumes of spatial data. These datase...
Chengyang Zhang, Yan Huang