request_span

Request span (要望スパン)

Request_span is a short phrase that is extracted from user utterance and represents user's requests to the hotel. These spans can be used for dialog state tracking or as a search query in the hotel database.

data/main/request_span

• 3,393 spans are annotated for 210 dialogues.
• Each span is labeled with one of these categories: ['service', 'schedule', 'budget', 'guest_num', 'child', 'accommodation', 'facility', 'travel', 'location', 'room', 'bath', 'food'].
• Each span is annotated with importance label: strong/neutral/weak.
• Refer to manuals for more detailed description of above annotations.

Related publications

• A Sequence-to-sequence Approach for Numerical Slot-filling Dialog Systems (Shi, SIGDIAL 2020)
• A Span Extraction Approach for Dialog State Tracking: A Case Study in Hotel Booking Application (Shi, 言語処理学会 NLP2021)