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DAIS
2009
15 years 4 months ago
Automated Assessment of Aggregate Query Imprecision in Dynamic Environments
Queries are widely used for acquiring data distributed in opportunistically formed mobile networks. However, when queries are executed in such dynamic settings, the returned result...
Vasanth Rajamani, Christine Julien, Jamie Payton
WWW
2009
ACM
16 years 7 months ago
How opinions are received by online communities: a case study on amazon.com helpfulness votes
There are many on-line settings in which users publicly express opinions. A number of these offer mechanisms for other users to evaluate these opinions; a canonical example is Ama...
Cristian Danescu-Niculescu-Mizil, Gueorgi Kossinet...
POPL
2009
ACM
16 years 7 months ago
A cost semantics for self-adjusting computation
Self-adjusting computation is an evaluation model in which programs can respond efficiently to small changes to their input data by using a change-propagation mechanism that updat...
Ruy Ley-Wild, Umut A. Acar, Matthew Fluet
POPL
2009
ACM
16 years 7 months ago
A calculus of atomic actions
We present a proof calculus and method for the static verification of assertions and procedure specifications in shared-memory concurrent programs. The key idea in our approach is...
Tayfun Elmas, Shaz Qadeer, Serdar Tasiran
CHI
2005
ACM
16 years 7 months ago
Towards an index of opportunity: understanding changes in mental workload during task execution
To contribute to systems that reason about human attention, our work empirically demonstrates how a user's mental workload changes during task execution. We conducted a study...
Shamsi T. Iqbal, Piotr D. Adamczyk, Xianjun Sam Zh...