Automatic Creation of Hyperlinks in AEC Documents by Extracting the Sheet Numbers Using LSTM Model

摘要

In a construction engineering document the sheet number represents a major identifier of the documents. Architecture, Engineering, and Construction (AEC) industry deals with many high dimensional drawing documents. For a construction document management system, it is necessary to extract sheet number from the Title block of the document. Architects and engineers also used to refer another document when creating some new ones. Otherwise, it is very difficult and time consuming to navigate through different files in an interactive way. This paper describes some hand-crafted and Long Short-Term Memory (LSTM) neural-net based features to extract sheet number from the Title Block. At first, we extract the content information from the document. From the extracted content information, we automatically find the sheet number which refers to another document. Then we created the hyperlinks in order to enable the engineers to quickly navigate between files. This work has strong application potential in the AEC industry. We have achieved overall accuracy of 98.52 %.