In recent years, the DBLP computer science bibliography has been prominently used for searching scholarly information, such as publications, scholars, and venues. However, its current search service lacks the capability to handle complex queries, which limits the usability of DBLP. In this paper, we present NLQxform-UI, a web-based natural language interface that enables users to query DBLP directly with complex natural language questions. NLQxform-UI automatically translates given questions into SPARQL queries and executes the queries over the DBLP knowledge graph to retrieve answers. The querying process is presented to users in an interactive manner, which improves the transparency of the system and helps examine the returned answers. Also, intermediate results in the querying process can be previewed and manually altered to improve the accuracy of the system. NLQxform-UI has been completely open-sourced: https://github.com/ruijie-wang-uzh/NLQxform-UI.

翻译：近年来，DBLP计算机科学文献数据库被广泛用于检索学术信息，如出版物、学者和学术会议/期刊。然而，其当前的搜索服务缺乏处理复杂查询的能力，这限制了DBLP的实用性。本文提出NLQxform-UI——一个基于网页的自然语言界面，使用户能够直接通过复杂的自然语言问题查询DBLP。NLQxform-UI自动将给定问题转换为SPARQL查询，并在DBLP知识图谱上执行查询以检索答案。查询过程以交互方式呈现给用户，从而提升了系统透明度，并有助于验证返回结果的准确性。此外，查询过程中的中间结果可被预览和手动调整，以提高系统精度。NLQxform-UI已完全开源：https://github.com/ruijie-wang-uzh/NLQxform-UI。