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ATAL
2010
Springer
15 years 7 months ago
Finding approximate competitive equilibria: efficient and fair course allocation
In the course allocation problem, a university administrator seeks to efficiently and fairly allocate schedules of over-demanded courses to students with heterogeneous preferences...
Abraham Othman, Tuomas Sandholm, Eric Budish
POPL
2008
ACM
16 years 6 months ago
Generating precise and concise procedure summaries
We present a framework for generating procedure summaries that are precise -- applying the summary in a given context yields the same result as re-analyzing the procedure in that ...
Greta Yorsh, Eran Yahav, Satish Chandra
CPM
2007
Springer
115views Combinatorics» more  CPM 2007»
16 years 20 days ago
Two-Dimensional Range Minimum Queries
We consider the two-dimensional Range Minimum Query problem: for a static (m × n)-matrix of size N = mn which may be preprocessed, answer on-line queries of the form “where is t...
Amihood Amir, Johannes Fischer, Moshe Lewenstein
CIKM
2009
Springer
16 years 1 months ago
A social recommendation framework based on multi-scale continuous conditional random fields
This paper addresses the issue of social recommendation based on collaborative filtering (CF) algorithms. Social recommendation emphasizes utilizing various attributes informatio...
Xin Xin, Irwin King, Hongbo Deng, Michael R. Lyu
EUROCRYPT
2003
Springer
15 years 11 months ago
CAPTCHA: Using Hard AI Problems for Security
We introduce captcha, an automated test that humans can pass, but current computer programs can’t pass: any program that has high success over a captcha can be used to solve an u...
Luis von Ahn, Manuel Blum, Nicholas J. Hopper, Joh...