A Two-Stage Bi-LSTM Model for Chinese Company Name Recognition

Chinese company name is a special name entity of organization, which plays a critical role in multiple application scenarios. Traditional rule-based or statistic based approaches that can achieve effective recognition for a company name at restriction environment, which is tricky to tailor the demands of real application scenarios. In this paper, we propose a two-stage Bi-LSTM model to achieve the Chinese company name recognition. The first stage is to detect the candidate Chinese company name by Bi-LSTM-CRF Model, and then the second stage is to further identify the company name via Bi-LSTM. We conduct the comparison experiment on a labelled benchmark dataset, the proposed approach achieves the 98.8% precision, 83.7% recall rate and 90.62% F-measure. It significantly outperforms traditional rule-based and statistics based approaches.