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SODA
1992
ACM
109views Algorithms» more  SODA 1992»
13 years 7 months ago
New Algorithms for Minimum Area k-gons
Given a set P of n points in the plane, we wish to find a set Q P of k points for which the convex hull conv(Q) has the minimum area. We solve this, and the related problem of fi...
David Eppstein
PODS
2007
ACM
203views Database» more  PODS 2007»
14 years 6 months ago
Decision trees for entity identification: approximation algorithms and hardness results
We consider the problem of constructing decision trees for entity identification from a given relational table. The input is a table containing information about a set of entities...
Venkatesan T. Chakaravarthy, Vinayaka Pandit, Samb...
FOCS
2004
IEEE
13 years 10 months ago
Extracting Randomness Using Few Independent Sources
In this work we give the first deterministic extractors from a constant number of weak sources whose entropy rate is less than 1/2. Specifically, for every > 0 we give an expl...
Boaz Barak, Russell Impagliazzo, Avi Wigderson
CORR
2010
Springer
90views Education» more  CORR 2010»
13 years 6 months ago
Logical complexity of graphs: a survey
We discuss the definability of finite graphs in first-order logic with two relation symbols for adjacency and equality of vertices. The logical depth D(G) of a graph G is equal to ...
Oleg Pikhurko, Oleg Verbitsky
ICALP
2007
Springer
14 years 13 days ago
Aliased Register Allocation for Straight-Line Programs Is NP-Complete
Register allocation is NP-complete in general but can be solved in linear time for straight-line programs where each variable has at most one definition point if the bank of regis...
Jonathan K. Lee, Jens Palsberg, Fernando Magno Qui...