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DBPL
2007
Springer
91views Database» more  DBPL 2007»
14 years 3 months ago
Relational Completeness of Query Languages for Annotated Databases
Annotated relational databases can be queried either by simply making the annotations explicitly available along the ordinary data, or by adapting the standard query operators so ...
Floris Geerts, Jan Van den Bussche
ICALP
2001
Springer
14 years 1 months ago
Routing in Trees
Given an undirected graph with positive edge weights, define Nq(v) for each node v to be the set of q nodes closest to v (including v itself and breaking ties by node ID). It is ...
Pierre Fraigniaud, Cyril Gavoille
GC
2007
Springer
13 years 9 months ago
Precoloring Extension of Co-Meyniel Graphs
The pre-coloring extension problem consists, given a graph G and a set of nodes to which some colors are already assigned, in finding a coloring of G with the minimum number of co...
Vincent Jost, Benjamin Lévêque, Fr&ea...
WDAG
2007
Springer
86views Algorithms» more  WDAG 2007»
14 years 3 months ago
Optimal On-Line Colorings for Minimizing the Number of ADMs in Optical Networks
We consider the problem of minimizing the number of ADMs in optical networks. All previous theoretical studies of this problem dealt with the off-line case, where all the lightpat...
Mordechai Shalom, Prudence W. H. Wong, Shmuel Zaks
IHIS
2005
ACM
14 years 2 months ago
Verifying web services composition based on hierarchical colored petri nets
Current Web services composition proposals, such as BPML, BPEL, WSCI, and OWL-S, provide notations for describing the control and data flows in Web service collaborations. However...
Yanping Yang, QingPing Tan, Yong Xiao