{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/unsupervised-post-processing-of-word-vectors","title":"Unsupervised Post-processing of Word Vectors via Conceptor Negation","arxiv_id":"1811.11001","date":"2018-11-17","proceeding":null,"authors":["Tianlin Liu","Lyle Ungar","João Sedoc"],"abstract":"Word vectors are at the core of many natural language processing tasks.\nRecently, there has been interest in post-processing word vectors to enrich\ntheir semantic information. In this paper, we introduce a novel word vector\npost-processing technique based on matrix conceptors (Jaeger2014), a family of\nregularized identity maps. More concretely, we propose to use conceptors to\nsuppress those latent features of word vectors having high variances. The\nproposed method is purely unsupervised: it does not rely on any corpus or\nexternal linguistic database. We evaluate the post-processed word vectors on a\nbattery of intrinsic lexical evaluation tasks, showing that the proposed method\nconsistently outperforms existing state-of-the-art alternatives. We also show\nthat post-processed word vectors can be used for the downstream natural\nlanguage processing task of dialogue state tracking, yielding improved results\nin different dialogue domains.","url_abs":"http://arxiv.org/abs/1811.11001v2","url_pdf":"http://arxiv.org/pdf/1811.11001v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"unsupervised-post-processing-of-word-vectors","repo_url":"https://github.com/liutianlin0121/Conceptor-Negation-WV","is_official":1,"mentioned_in_paper":0,"mentioned_in_github":0,"framework":"none","reach":null}],"tasks":[{"task_slug":"dialogue-state-tracking","task_name":"Dialogue State Tracking"},{"task_slug":"negation","task_name":"Negation"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":"https://app.syntology.ai/?focus=1811.11001","mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}