@inproceedings{309c9cc6bbd44ca6a211ac663b5b4e64,
title = "STEAM: Self-Supervised Taxonomy Expansion with Mini-Paths",
abstract = "Taxonomies are important knowledge ontologies that underpin numerous applications on a daily basis, but many taxonomies used in practice suffer from the low coverage issue. We study the taxonomy expansion problem, which aims to expand existing taxonomies with new concept terms. We propose a self-supervised taxonomy expansion model named STEAM, which leverages natural supervision in the existing taxonomy for expansion. To generate natural self-supervision signals, STEAM samples mini-paths from the existing taxonomy, and formulates a node attachment prediction task between anchor mini-paths and query terms. To solve the node attachment task, it learns feature representations for query-anchor pairs from multiple views and performs multi-view co-training for prediction. Extensive experiments show that STEAM outperforms state-of-the-art methods for taxonomy expansion by 11.6% in accuracy and 7.0% in mean reciprocal rank on three public benchmarks. The code and data for STEAM can be found at https://github.com/yueyu1030/STEAM.",
keywords = "mini-paths, self-supervised learning, taxonomy expansion",
author = "Yue Yu and Yinghao Li and Jiaming Shen and Hao Feng and Jimeng Sun and Chao Zhang",
note = "Publisher Copyright: {\textcopyright} 2020 ACM.; 26th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, KDD 2020 ; Conference date: 23-08-2020 Through 27-08-2020",
year = "2020",
month = aug,
day = "23",
doi = "10.1145/3394486.3403145",
language = "English (US)",
series = "Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining",
publisher = "Association for Computing Machinery",
pages = "1026--1035",
booktitle = "KDD 2020 - Proceedings of the 26th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining",
address = "United States",
}