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ACMACE
2008
ACM
13 years 11 months ago
Designing location-based mobile games with a purpose: collecting geospatial data with CityExplorer
The games with a purpose paradigm proposed by Luis von Ahn [9] is a new approach for game design where useful but boring tasks, like labeling a random image found in the web, are ...
Sebastian Matyas, Christian Matyas, Christoph Schl...
LATIN
2010
Springer
13 years 11 months ago
Lightweight Data Indexing and Compression in External Memory
In this paper we describe algorithms for computing the BWT and for building (compressed) indexes in external memory. The innovative feature of our algorithms is that they are light...
Paolo Ferragina, Travis Gagie, Giovanni Manzini
SPIESR
2001
105views Database» more  SPIESR 2001»
13 years 10 months ago
Video summarization using motion descriptors
We describe a technique for video summarization that uses motion descriptors computed in the compressed domain to speed up conventional color based video summarization technique. ...
Ajay Divakaran, Kadir A. Peker, Huifang Sun
USENIX
2003
13 years 10 months ago
A Cooperative Internet Backup Scheme
We present a novel peer-to-peer backup technique that allows computers connected to the Internet to back up their data cooperatively: Each computer has a set of partner computers,...
Mark Lillibridge, Sameh Elnikety, Andrew Birrell, ...
HPDC
2008
IEEE
13 years 9 months ago
Code coverage, performance approximation and automatic recognition of idioms in scientific applications
Basic data flow patterns which we call idioms, such as stream, transpose, reduction, random access and stencil, are common in scientific numerical applications. We hypothesize tha...
Jiahua He, Allan Snavely, Rob F. Van der Wijngaart...