Overview of the NLPCC 2018 Shared Task: Spoken Language Understanding in Task-Oriented Dialog Systems

This paper presents the overview for the shared task at the 7th CCF Conference on Natural Language Processing & Chinese Computing (NLPCC 2018): Spoken Language Understanding (SLU) in Task-oriented Dialog Systems. SLU usually consists of two parts, namely intent identification and slot filling. The shared task made publicly available a Chinese dataset of over 5.8 K sessions, which is a sample of the real query log from a commercial task-oriented dialog system and includes 26 K utterances. The contexts within a session are taken into consideration when a query within the session was annotated. To help participating systems correct ASR errors of slot values, this task also provides a dictionary of values for each enumerable type of slot. 16 teams entered the task and submitted a total of 40 SLU results. In this paper, we will review the task, the corpus, and the evaluation results.