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» Natural Selection in Relation to Complexity
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IR
2007
13 years 7 months ago
Restricted inflectional form generation in management of morphological keyword variation
Word form normalization through lemmatization or stemming is a standard procedure in information retrieval because morphological variation needs to be accounted for and several la...
Kimmo Kettunen, Eija Airio, Kalervo Järvelin
WOLLIC
2010
Springer
14 years 27 days ago
Modal Logics with Counting
Abstract. We present a modal language that includes explicit operators to count the number of elements that a model might include in the extension of a formula, and we discuss how ...
Carlos Areces, Guillaume Hoffmann, Alexandre Denis
ISR
2010
13 years 6 months ago
Electronic Markets, Search Costs, and Firm Boundaries
We study how electronic markets that facilitate broader inter-firm transactions affect the vertical scope of emerging IT-enabled extended enterprises. We do so by modeling firms...
Ramesh Sankaranarayanan, Arun Sundararajan
CORR
2011
Springer
167views Education» more  CORR 2011»
13 years 2 months ago
On Quadratic Programming with a Ratio Objective
Quadratic Programming (QP) is the well-studied problem of maximizing over {−1, 1} values the quadratic form i=j aijxixj. QP captures many known combinatorial optimization proble...
Aditya Bhaskara, Moses Charikar, Rajsekar Manokara...
WSDM
2012
ACM
262views Data Mining» more  WSDM 2012»
12 years 3 months ago
Effects of user similarity in social media
There are many settings in which users of a social media application provide evaluations of one another. In a variety of domains, mechanisms for evaluation allow one user to say w...
Ashton Anderson, Daniel P. Huttenlocher, Jon M. Kl...