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AAAI
2010
14 years 11 months ago
Compilation Complexity of Common Voting Rules
In computational social choice, one important problem is to take the votes of a subelectorate (subset of the voters), and summarize them using a small number of bits. This needs t...
Lirong Xia, Vincent Conitzer
SYRCODIS
2008
184views Database» more  SYRCODIS 2008»
14 years 11 months ago
Towards Cost-based Query Optimization in Native XML Database Management Systems
In the last few years, XML became a de-facto standard for the exchange of structured and semi-structured data. The database research community took this development into account b...
Andreas M. Weiner, Christian Mathis, Theo Här...
SODA
2001
ACM
87views Algorithms» more  SODA 2001»
14 years 11 months ago
Steiner points in tree metrics don't (really) help
Consider an edge-weighted tree T = (V, E, w : E R+ ), in which a subset R of the nodes (called the required nodes) are colored red and the remaining nodes in S = V \R are colored ...
Anupam Gupta
WOTUG
2007
14 years 11 months ago
Concurrency Control and Recovery Management for Open e-Business Transactions
Concurrency control mechanisms such as turn-taking, locking, serialization, transactional locking mechanism, and operational transformation try to provide data consistency when con...
Amir R. Razavi, Sotiris Moschoyiannis, Paul J. Kra...
AML
2007
68views more  AML 2007»
14 years 10 months ago
A note on weak dividing
We study the notion of weak dividing introduced by S. Shelah. In particular we prove that T is stable iff weak dividing is symmetric. In order to study simple theories Shelah orig...
Byunghan Kim, Niandong Shi