标题： 基于规则的方法论用于公司识别：应用于下游空间领域 显示英文标题

标题： A Rule-Based Methodology for Company Identification: Application to the Downstream Space Sector

摘要： 本文提出了一种基于命名实体识别（NER）的原创方法，以识别参与下游空间活动的公司，即提供利用太空数据和技术的服务或产品的公司。 使用基于规则的方法，该方法利用数字化法国报纸文章的文本语料库，提取与下游空间部分相关的公司名称。 该方法成功检测到88家新的下游空间公司，使该领域的现有数据库增加了33%。 本文详细描述了识别过程，并提供了未来复制的指导，将该方法应用于其他地理区域，或将其适应到其他行业中，其中新进入者通过传统活动分类难以识别。 显示英文摘要

摘要： This paper proposes an original methodology based on Named Entity Recognition (NER) to identify companies involved in downstream space activities, i.e., companies that provide services or products exploiting data and technology from space. Using a rule-based approach, the method leverages a corpus of texts from digitized French press articles to extract company names related to the downstream space segment. This approach allowed the detection of 88 new downstream space companies, enriching the existing database of the sector by 33\%. The paper details the identification process and provides guidelines for future replications, applying the method to other geographic areas, or adapting it to other industries where new entrants are challenging to identify using traditional activity classifications.