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WWW
2007
ACM
16 years 7 months ago
Topic sentiment mixture: modeling facets and opinions in weblogs
In this paper, we define the problem of topic-sentiment analysis on Weblogs and propose a novel probabilistic model to capture the mixture of topics and sentiments simultaneously....
Qiaozhu Mei, Xu Ling, Matthew Wondra, Hang Su, Che...
POPL
2005
ACM
16 years 7 months ago
Downgrading policies and relaxed noninterference
In traditional information-flow type systems, the security policy is often formalized as noninterference properties. However, noninterference alone is too strong to express securi...
Peng Li, Steve Zdancewic
POPL
2003
ACM
16 years 7 months ago
Guarded recursive datatype constructors
We introduce a notion of guarded recursive (g.r.) datatype constructors, generalizing the notion of recursive datatypes in functional programming languages such as ML and Haskell....
Hongwei Xi, Chiyan Chen, Gang Chen
PODS
2008
ACM
123views Database» more  PODS 2008»
16 years 7 months ago
Evaluating rank joins with optimal cost
In the rank join problem, we are given a set of relations and a scoring function, and the goal is to return the join results with the top K scores. It is often the case in practic...
Karl Schnaitter, Neoklis Polyzotis
ICFP
2006
ACM
16 years 6 months ago
Simple unification-based type inference for GADTs
Generalized algebraic data types (GADTs), sometimes known as "guarded recursive data types" or "first-class phantom types", are a simple but powerful generaliz...
Simon L. Peyton Jones, Dimitrios Vytiniotis, Steph...