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The Modular Community Structure of Linguistic Predication Networks

Gerow, Aaron and James, Evans. 2014. 'The Modular Community Structure of Linguistic Predication Networks'. In: Graph-based Methods in Natural Language Processing (TextGraphs-9). Doha, Qatar October 29, 2014. [Conference or Workshop Item]

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Abstract or Description

This paper examines the structure of linguistic predications in English text. Identified by the copular “is-a” form, predications assert category membership (hypernymy) or equivalence (synonymy) between two words. Because predication expresses ontological structure, we hypothesize that networks of predications will form modular groups. To measure this, we introduce a semantically motivated measure of predication strength to weight relevant predications observed in text. Results show that predications do indeed form modular structures without any weighting (Q ≈ 0.6) and that using predication strength increases this modularity (Q ≈ 0.9) without discarding low-frequency items. This high level of modularity supports the network-based analysis and the use of predication strength as a way to extract dense semantic clusters. Additionally, words’ centrality within communities exhibits slight correlation with hypernym depths in WordNet, underscoring the ontological organization of predication.

Item Type:

Conference or Workshop Item (Paper)

Departments, Centres and Research Units:

Computing

Dates:

DateEvent
October 2014Published

Event Location:

Doha, Qatar

Date range:

October 29, 2014

Item ID:

22715

Date Deposited:

09 Jan 2018 14:36

Last Modified:

10 Jul 2018 04:04

URI:

http://research.gold.ac.uk/id/eprint/22715

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