metadata

language:
  - en
license:
  - cc-by-4.0
multilinguality:
  - monolingual
pretty_name: Taskmaster-2
size_categories:
  - 10K<n<100K
task_categories:
  - conversational

Dataset Card for Taskmaster-2

Repository: https://github.com/google-research-datasets/Taskmaster/tree/master/TM-2-2020
Paper: https://arxiv.org/pdf/1909.05358.pdf
Leaderboard: None
Who transforms the dataset: Qi Zhu(zhuq96 at gmail dot com)

To use this dataset, you need to install ConvLab-3 platform first. Then you can load the dataset via:

from convlab.util import load_dataset, load_ontology, load_database

dataset = load_dataset('tm2')
ontology = load_ontology('tm2')
database = load_database('tm2')

For more usage please refer to here.

Dataset Summary

The Taskmaster-2 dataset consists of 17,289 dialogs in the seven domains. Unlike Taskmaster-1, which includes both written "self-dialogs" and spoken two-person dialogs, Taskmaster-2 consists entirely of spoken two-person dialogs. In addition, while Taskmaster-1 is almost exclusively task-based, Taskmaster-2 contains a good number of search- and recommendation-oriented dialogs, as seen for example in the restaurants, flights, hotels, and movies verticals. The music browsing and sports conversations are almost exclusively search- and recommendation-based. All dialogs in this release were created using a Wizard of Oz (WOz) methodology in which crowdsourced workers played the role of a 'user' and trained call center operators played the role of the 'assistant'. In this way, users were led to believe they were interacting with an automated system that “spoke” using text-to-speech (TTS) even though it was in fact a human behind the scenes. As a result, users could express themselves however they chose in the context of an automated interface.

How to get the transformed data from original data:
- Download master.zip.
- Run python preprocess.py in the current directory.
Main changes of the transformation:
- Remove dialogs that are empty or only contain one speaker.
- Split each domain dialogs into train/validation/test randomly (8:1:1).
- Merge continuous turns by the same speaker (ignore repeated turns).
- Annotate dialogue acts according to the original segment annotations. Add intent annotation (==inform). The type of dialogue act is set to non-categorical if the slot is not in anno2slot in preprocess.py). Otherwise, the type is set to binary (and the value is empty). If there are multiple spans overlapping, we only keep the shortest one, since we found that this simple strategy can reduce the noise in annotation.
- Add domain, intent, and slot descriptions.
- Add state by accumulate non-categorical dialogue acts in the order that they appear.
- Keep the first annotation since each conversation was annotated by two workers.
Annotations:
- dialogue acts, state.

Supported Tasks and Leaderboards

NLU, DST, Policy, NLG

Languages

English

Data Splits

split	dialogues	utterances	avg_utt	avg_tokens	avg_domains	cat slot match(state)	cat slot match(goal)	cat slot match(dialogue act)	non-cat slot span(dialogue act)
train	13838	234321	16.93	9.1	1	-	-	-	100
validation	1731	29349	16.95	9.15	1	-	-	-	100
test	1734	29447	16.98	9.07	1	-	-	-	100
all	17303	293117	16.94	9.1	1	-	-	-	100

7 domains: ['flights', 'food-ordering', 'hotels', 'movies', 'music', 'restaurant-search', 'sports']

cat slot match: how many values of categorical slots are in the possible values of ontology in percentage.
non-cat slot span: how many values of non-categorical slots have span annotation in percentage.

Citation

@inproceedings{byrne-etal-2019-taskmaster,
  title = {Taskmaster-1:Toward a Realistic and Diverse Dialog Dataset},
  author = {Bill Byrne and Karthik Krishnamoorthi and Chinnadhurai Sankar and Arvind Neelakantan and Daniel Duckworth and Semih Yavuz and Ben Goodrich and Amit Dubey and Kyu-Young Kim and Andy Cedilnik},
  booktitle = {2019 Conference on Empirical Methods in Natural Language Processing and 9th International Joint Conference on Natural Language Processing},
  address = {Hong Kong}, 
  year = {2019} 
}

Licensing Information

CC BY 4.0