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CHI
2007
ACM
16 years 6 months ago
Storytelling alice motivates middle school girls to learn computer programming
We describe Storytelling Alice, a programming environment that introduces middle school girls to computer programming as a means to the end of creating 3D animated stories. Storyt...
Caitlin Kelleher, Randy F. Pausch, Sara B. Kiesler
SIGMOD
2010
ACM
308views Database» more  SIGMOD 2010»
15 years 4 months ago
GBLENDER: towards blending visual query formulation and query processing in graph databases
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
Changjiu Jin, Sourav S. Bhowmick, Xiaokui Xiao, Ja...
WWW
2011
ACM
15 years 29 days ago
Rewriting queries on SPARQL views
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
Wangchao Le, Songyun Duan, Anastasios Kementsietsi...
WWW
2010
ACM
16 years 1 months ago
Distributing private data in challenged network environments
Developing countries face significant challenges in network access, making even simple network tasks unpleasant. Many standard techniques—caching and predictive prefetching— ...
Azarias Reda, Brian D. Noble, Yidnekachew Haile
CN
2006
113views more  CN 2006»
15 years 6 months ago
Failure recovery for structured p2p networks: Protocol design and performance under churn
Measurement studies indicate a high rate of node dynamics in p2p systems. In this paper, we address the question of how high a rate of node dynamics can be supported by structured...
Simon S. Lam, Huaiyu Liu