Research on dynamic optimization problems in GIS

2016 Fiscal Year Final Research Report

• Project/Area Number: 24500021
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fundamental theory of informatics
• Research Institution: Chuo University
• Principal Investigator: Imai Keiko 中央大学, 理工学部, 教授 (70203289)
• Co-Investigator(Renkei-kenkyūsha): IMAI Hiroshi 東京大学, 大学院情報理工学系研究科, 教授 (80183010)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Keywords: 最適化問題 / 地理情報システム / ラベル配置問題 / 自動描画問題

Outline of Final Research Achievements

Recently, in the Geographic Information Systems (GIS), there are a lot of optimization problems in dynamic environments. In order to solve such problems, efficient algorithms that deal with moving data and a large amount of GIS data are strongly required. We have investigated algorithms for optimization problems in GIS. Mainly, in this project, we considered label placement problems and automatic drawing problems for network structures. Examples of label placement problems include the label size maximization for rotating maps and the minimum point-overlap labeling problem. We obtained efficient algorithms or approximation algorithms for such problems. For automatic drawing problems, we developed methods of drawing the Tokyo Metro map, which cannot be applied by existing methods, using mixed integer programming.

Free Research Field

アルゴリズム理論