2026-09-21T09:30:02Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/99195 2023-07-11 col_2142_5131 col_2142_10761 com_2142_5130 com_2142_10755 com_2142_234

Roth, Dan Chen, Liang-Wei 2018-03-13T15:21:06Z 2018-03-13T15:21:06Z 2020-03-14T09:15:22Z 2017-12-05 2017-12 Mention discovery, entity linking, and grounding are crucial steps in natural language understanding. Compared with named entities, the detection and linking of nominals are relatively little studied but essential since the grounding of nouns enriches information for humans that read documents. In this thesis, we address those problems by extending the Illinois Cross-lingual Wikifier with nominal linking and sense disambiguation. We train a nominal detector with the dictionary post-process to discover nominal mentions and classify them into predefined type categories. For the nominal linking, we propose a co-reference model that captures the pairwise features between the named entity and the nominal, and we integrate it with several linking heuristics. Finally, we ground nouns to their Wikipedia titles by adjusting the ranker of the Wikifier with extra features and the training on common nouns. Our proposed approaches show competitive performances on the benchmark datasets. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-12-01 The student, Liang-Wei Chen, accepted the attached license on 2017-12-04 at 22:36. The student, Liang-Wei Chen, submitted this Thesis for approval on 2017-12-04 at 22:54. This Thesis was approved for publication on 2017-12-05 at 15:57. DSpace SAF Submission Ingestion Package generated from Vireo submission #11705 on 2018-03-13 at 09:55:38 Made available in DSpace on 2018-03-13T15:21:06Z (GMT). No. of bitstreams: 3 CHEN-THESIS-2017.pdf: 313622 bytes, checksum: 8a418a10055437271ab27d090ca103ad (MD5) thesis.zip: 137939 bytes, checksum: a5a2032507674f717cccdf987d4bb5ea (MD5) LICENSE.txt: 4211 bytes, checksum: cb39fde2d05251da2412b3fa24acddd1 (MD5) Previous issue date: 2017-12-05 Embargo set by: Seth Robbins for item 105157 Lift date: 2020-03-13T15:21:19Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 105157 Lift date: 2020-03-13T15:25:40Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 105157 Lift date: 2020-03-13T15:28:52Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only Restriction Lifted for Item 105157 on 2020-03-14T09:15:22Z. application/pdf http://hdl.handle.net/2142/99195 en Copyright 2017 Liang-Wei Chen Wikification Nominal entity recognition Nominal entity disambiguation Concept disambiguation Natural language processing Extending Wikification: Nominal discovery, nominal linking, and the grounding of nouns text text Computer Science Computer Science University of Illinois at Urbana-Champaign Thesis M.S.