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CSR
2009
Springer
14 years 5 months ago
2009
Springer
We study the complexity of testing if two given matroids are isomorphic. The problem is easily seen to be in Σp 2 . In the case of linear matroids, which are represented over poly...
CHI
2009
ACM
14 years 11 months ago
2009
ACM
Social media treats all users the same: trusted friend or total stranger, with little or nothing in between. In reality, relationships fall everywhere along this spectrum, a topic...
CHI
2009
ACM
14 years 11 months ago
2009
ACM
1 Technology makes it possible to share many different types of information with coworkers. We conducted a large-scale survey (N=549) to better understand current sharing among co...
CHI
2009
ACM
14 years 5 months ago
2009
ACM
For over a century, citizen scientists have volunteered to collect huge quantities of data for professional scientists to analyze. We designed Pathfinder, an online environment th...
DGO
2009
13 years 11 months ago
2009
We have developed Metavid.org, a site that archives video footage of the U.S. Senate and House floor proceedings. Visitors can search for who said what when and also download, rem...