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ICALP
2011
Springer
12 years 11 months ago
Probabilistic Bisimulation and Simulation Algorithms by Abstract Interpretation
act Interpretation SILVIA CRAFA FRANCESCO RANZATO University of Padova, Italy We show how bisimulation equivalence and simulation preorder on probabilistic LTSs (PLTSs), namely the...
Silvia Crafa, Francesco Ranzato
DIS
2007
Springer
14 years 1 months ago
Unsupervised Spam Detection Based on String Alienness Measures
We propose an unsupervised method for detecting spam documents from Web page data, based on equivalence relations on strings. We propose 3 measures for quantifying the alienness (...
Kazuyuki Narisawa, Hideo Bannai, Kohei Hatano, Mas...
ACL
2006
13 years 9 months ago
Analysis and Repair of Name Tagger Errors
Name tagging is a critical early stage in many natural language processing pipelines. In this paper we analyze the types of errors produced by a tagger, distinguishing name classi...
Heng Ji, Ralph Grishman
IFIP
2005
Springer
14 years 1 months ago
Multi-Stage Stochastic Electricity Portfolio Optimization in Liberalized Energy Markets
In this paper we analyze the electricity portfolio problem of a big consumer in a multi-stage stochastic programming framework. Stochasticity enters the model via the uncertain spo...
Ronald Hochreiter, Georg Ch. Pflug, David Wozabal
ICSE
2010
IEEE-ACM
13 years 9 months ago
Measuring complexity, effectiveness and efficiency in software course projects
This paper discusses results achieved in measuring complexity, effectiveness and efficiency, in a series of related software course projects, spanning a period of seven years. We ...
Wilson Padua