Sciweavers

5128 search results - page 166 / 1026
» When Abstraction Fails
Sort
View
ICDT
2009
ACM
105views Database» more  ICDT 2009»
16 years 7 months ago
Efficient data structures for range-aggregate queries on trees
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
Hao Yuan, Mikhail J. Atallah
CHI
2009
ACM
16 years 7 months ago
Back-of-device interaction allows creating very small touch devices
In this paper, we explore how to add pointing input capabilities to very small screen devices. On first sight, touchscreens seem to allow for particular compactness, because they ...
Patrick Baudisch, Gerry Chu
SIGCSE
2009
ACM
150views Education» more  SIGCSE 2009»
16 years 7 months ago
Dereferee: exploring pointer mismanagement in student code
Dynamic memory management and the use of pointers are critical topics in teaching the C++ language. They are also some of the most difficult for students to grasp properly. The re...
Anthony Allevato, Manuel A. Pérez-Qui&ntild...
MOBIHOC
2009
ACM
16 years 7 months ago
Fine-grained boundary recognition in wireless ad hoc and sensor networks by topological methods
Location-free boundary recognition is crucial and critical for many fundamental network functionalities in wireless ad hoc and sensor networks. Previous designs, often coarse-grai...
Dezun Dong, Yunhao Liu, Xiangke Liao
KDD
2001
ACM
124views Data Mining» more  KDD 2001»
16 years 6 months ago
Tri-plots: scalable tools for multidimensional data mining
We focus on the problem of finding patterns across two large, multidimensional datasets. For example, given feature vectors of healthy and of non-healthy patients, we want to answ...
Agma J. M. Traina, Caetano Traina Jr., Spiros Papa...