データ結合後の構造変化に基づくアプリケーション構想に有用なオープンデータ探索手法

抄録

Open data is a data that is provided by public sector or social infrastructure companies like transportation service providers, and recently tried to be utilized in various applications. When plural open data are successfully used in combination for an application, its usefulness would certainly exist. However, it is a little difficult to straightly retrieve such combinable open data, and the difficulty brings a lot of trial process or go and back process in ideation and development of applications that use open data. In this paper, we propose an exploration method of useful open data for combinational use. In the method, an evaluation approach of the data for application ideation in advance to start application ideation is embedded. The method evaluates the combinability and the usefulness based on the structure change of consolidated data, especially in the amount change on its volume and attributes, also uniqueness of its cell values. The result of experiments applying the method to some actual municipal open data shows sufficient capability to distinguish the combinability and the usefulness of plural open data for application ideation.