Buyback problem with discrete concave valuation functions

Shun Fukuda, Akiyoshi Shioura, Takeshi Tokuyama

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We discuss an online discrete optimization problem called the buyback problem. In the literature of the buyback problem, the valuation function representing the value of a set of selected elements is given by a linear function. In this paper, we consider a generalization of the buyback problem using a nonlinear valuation function. We propose an online algorithm for the problem with a discrete concave valuation function, and show that it achieves the same competitive ratio as the best possible ratio for a linear valuation function.

本文言語English
ホスト出版物のタイトルApproximation and Online Algorithms - 13th International Workshop, WAOA 2015, Revised Selected Papers
編集者Martin Skutella, Laura Sanità
出版社Springer Verlag
ページ72-83
ページ数12
ISBN(印刷版)9783319286839
DOI
出版ステータスPublished - 2015
イベント13th International Workshop on Approximation and Online Algorithms, WAOA 2015 - Patras, Greece
継続期間: 2015 9月 172015 9月 18

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
9499
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other13th International Workshop on Approximation and Online Algorithms, WAOA 2015
国/地域Greece
CityPatras
Period15/9/1715/9/18

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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