Titlebook: Combinatorial Optimization and Applications; Third International Ding-Zhu Du,Xiaodong Hu,Panos M. Pardalos Conference proceedings 2009 The

夹死提手势

A 2log,(,)-Approximation Algorithm for Directed Tour Coverf minimum cost, is .-hard. It is thus interesting to design approximation algorithms with performance guarantee to solve this problem. Although its undirected counterpart (ToCP) has been studied in recent years [1,6], in our knowledge, the DTCP remains widely open. In this paper, we give a 2log.(.)-approximation algorithm for the DTCP.

travail

格子架

过份好问

resistant

Banoth Gopalakrishna,Pasla Dinakarof . jobs, where machines and jobs are all entitled to different levels of grade of service (GoS), each job . has its processing time .. and it is only allocated to a machine .. whose GoS level is no more than the GoS level the job .. has. The goal is to allocate all jobs to . machines to maximize t

使害羞

chronicle

GROWL

原谅

Supervised Learning Systems on Silicon In this paper, with unitary spaces over finite fields, we present two new constructions whose efficiency ratio, i.e., the ratio between the number of tests and the number of items, is smaller than some of existing construction.

Peristalsis

Carlos Dualibe,Michel Verleysenering algorithms often fail to retrieve common expression groups because (1) genes only exhibit similar behaviors over a subset of conditions, and (2) genes may participate in more than one functional process and therefore belong to multiple groups. Many algorithms have been proposed to address thes