CAsT-19: A Dataset for Conversational Information Seeking

By Jeffrey Dalton, Chenyan Xiong, Vaibhav Kumar, Jamie Callan. 2020

80 citations recorded by the source corpus.

CAsT-19 is a new dataset that supports research on conversational information seeking. The corpus is 38,426,252 passages from the TREC Complex Answer Retrieval (CAR) and Microsoft MAchine Reading COmprehension (MARCO) datasets. Eighty information seeking dialogues (30 train, 50 test) are an average of 9 to 10 questions long. A dialogue may explore a topic broadly or drill down into subtopics. Questions contain ellipsis, implied context, mild topic shifts, and other characteristics of human conversation that may prevent them from being understood in isolation. Relevance assessments are provided for 30 training topics and 20 test topics. CAsT-19 promotes research on conversational information seeking by defining it as a task in which effective passage selection requires understanding a question's context (the dialogue history). It focuses attention on user modeling, analysis of prior retrieval results, transformation of questions into effective queries, and other topics that have been difficult to study with existing datasets.

Subfields: Artificial Intelligence, Natural Language Processing

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

  1. Jimmy J. Lin
  2. Nick Craswell
  3. Bhaskar Mitra
  4. Sebastian Hofstätter
  5. Emine Yilmaz
  6. Daniel Fernando Campos
  7. Jamie Callan
  8. Noah A. Smith

In Natural Language Processing

  1. Jimmy J. Lin
  2. Slav Petrov
  3. Dipanjan Das
  4. Bhaskar Mitra
  5. Nick Craswell
  6. Percy Liang
  7. Noah A. Smith
  8. Michael Collins

Citations in the corpus