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CE
2007
100views more  CE 2007»
15 years 6 months ago
Visualization of participation: Does it contribute to successful computer-supported collaborative learning?
This study investigated the effects of visualization of participation during computer-supported collaborative learning (CSCL). It is hypothesized that visualization of participat...
Jeroen Janssen, Gijsbert Erkens, Gellof Kanselaar,...
IJSWIS
2008
135views more  IJSWIS 2008»
15 years 6 months ago
Efficient Processing of RDF Queries with Nested Optional Graph Patterns in an RDBMS
Relational technology has shown to be very useful for scalable Semantic Web data management. Numerous researchers have proposed to use RDBMSs to store and query voluminous RDF dat...
Artem Chebotko, Shiyong Lu, Mustafa Atay, Farshad ...
CN
2007
88views more  CN 2007»
15 years 6 months ago
DMTP: Controlling spam through message delivery differentiation
Unsolicited commercial email, commonly known as spam, has become a pressing problem in today’s Internet. In this paper we re-examine the architectural foundations of the current...
Zhenhai Duan, Yingfei Dong, Kartik Gopalan
IOR
2008
137views more  IOR 2008»
15 years 6 months ago
Optimal Joint Inventory and Transshipment Control Under Uncertain Capacity
In this paper, we address the optimal joint control of inventory and transshipment for a firm that produces in two locations and faces capacity uncertainty. Capacity uncertainty (...
Xinxin Hu, Izak Duenyas, Roman Kapuscinski
IPL
2008
72views more  IPL 2008»
15 years 6 months ago
Reducing communication costs in robust peer-to-peer networks
Several recent research results describe how to design Distributed Hash Tables (DHTs) that are robust to adversarial attack via Byzantine faults. Unfortunately, all of these resul...
Jared Saia, Maxwell Young