Abstract
In the field of construction, cost estimation is conducted before the actual construction work. In the cost estimation, the required items for the construction and their quantities are summarized as a document. To validate the document, a supervision process is conducted. However, there is not so much time to perform the accurate validation for all items. Therefore, the workflow depends on the supervision workers' decisions based on past construction trends.
To solve this problem, we consider the automation of cost estimation supervision by using data from past construction documents. If we can analyze the data and understand the
relationship between items and their quantities, we can automate the supervision process based on those rules.
In this study, we prepare a database from the past cost estimation documents and develop an efficiency system for the construction cost estimation supervision.
https://ror.org/01hvx5h04 
