493 search results - page 18 / 99 » Quantum Query Complexity of Some Graph Problems |
ICDE
2011
IEEE
14 years 1 months ago
2011
IEEE
—It is increasingly common to find graphs in which edges bear different types, indicating a variety of relationships. For such graphs we propose a class of reachability queries ...
FOCS
1998
IEEE
15 years 1 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
STOC
2009
ACM
15 years 10 months ago
2009
ACM
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
DAM
1999
14 years 9 months ago
1999
The definitions of four previously studied parameters related to total coverings and total matchings of graphs can be restricted, thereby obtaining eight parameters related to cov...
ICCV
2011
IEEE
13 years 9 months ago
2011
IEEE
Videos usually consist of activities involving interactions between multiple actors, sometimes referred to as complex activities. Recognition of such activities requires modeling ...