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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 13 of 13 1 A novel image-based approach for interactive characterization of rock fracture spacing in a tunnel face Chen, J; Chen, Y; Cohn, AG. - : Elsevier, 2022 BASE Show details 2 Categorisation, Typicality & Object-Specific Features in Spatial Referring Expressions Richard-Bollans, A; Gómez Álvarez, L; Cohn, AG. - : Association for Computational Linguistics, 2020 BASE Show details 3 Modelling the Polysemy of Spatial Prepositions in Referring Expressions Richard-Bollans, A; Gomez Alvarez, L; Cohn, AG. - : IJCAI Organization, 2020 Abstract: In previous work exploring how to automatically generate typicality measures for spatial prepositions in grounded settings, we considered a semantic model based on Prototype Theory and introduced a method for learning its parameters from data. However, though there is much to suggest that spatial prepositions exhibit polysemy, each term was treated as exhibiting a single sense. The ability for terms to represent distinct but related meanings is unexplored in the work on grounded semantics and referring expressions, where even homonymy is rarely considered. In this paper we address this problem by analysing the issue of reference using spatial language and examining how the polysemy exhibited by spatial prepositions can be incorporated into semantic models for situated dialogue. We support our approach on theoretical developments of Prototype Theory, which suggest that polysemy may be analysed in terms of radial categories, characterised by having several prototypicality centres. After providing a brief overview of polysemy in spatial language and a review of the related work, we define the Baseline Model and discuss how polysemy may be incorporated to improve it. We introduce a method of identifying polysemes based on `ideal meanings' and a modification of the `principled polysemy' framework. In order to compare polysemes and aid typicality judgements we then introduce a notion of `polyseme hierarchy'. Subsequently, we test the performance of the extended Polysemy Model by comparing it to the Baseline Model as well as a data-driven model of polysemy which we derive with a clustering algorithm. We conclude that our method for incorporating polysemy into the Baseline Model provides significant improvement. Finally, we analyse the properties and behaviour of the generated Polysemy Model, providing some insight into the improvement in performance, as well as justification for the given methods. URL: https://eprints.whiterose.ac.uk/161568/8/alrb_kr.pdf https://eprints.whiterose.ac.uk/161568/ BASE Hide details 4 Investigating the Dimensions of Spatial Language Richard-Bollans, A; Gómez Álvarez, L; Bennett, B. - 2019 BASE Show details 5 The Role of Pragmatics in Solving the Winograd Schema Challenge Richard-Bollans, AL; Gomez Alvarez, L; Cohn, AG. - : CEUR Workshop Proceedings, 2018 BASE Show details 6 Learning of Object Properties, Spatial Relations, and Actions for Embodied Agents from Language and Vision Alomari, M; Duckworth, P; Hogg, DC. - : AAAI Press, 2017 BASE Show details 7 Natural Language Grounding and Grammar Induction for Robotic Manipulation Commands Alomari, M; Duckworth, P; Hawasly, M. - : The Association for Computational Linguistics, 2017 BASE Show details 8 Natural Language Acquisition and Grounding for Embodied Robotic Systems Duckworth, P; Al-Omari, M; Hogg, DC. - : Association for the Advancement of Artificial Intelligence, 2017 BASE Show details 9 Grounding language in perception for scene conceptualization in autonomous robots Dubba, KSR; De Oliveira, MR; Lim, GH. - : AI Access Foundation, 2014 BASE Show details 10 Interactive semantic feedback for intuitive ontology authoring Denaux, R; Thakker, DA; Dimitrova, V. - : IOS Press, 2012 BASE Show details 11 From Video to RCC8: Exploiting a Distance Based Semantics to Stabilise the Interpretation of Mereotopological Relations Sridhar, M; Cohn, AG; Hogg, DC. - : Springer, 2011 BASE Show details 12 The automated evaluation of inferred word classifications Hughes, J; Atwell, E. - : John Wiley & Sons, 1994 BASE Show details 13 Online perceptual learning and natural language acquisition for autonomous robots Alomari, M; Li, F; Hogg, DC. - : Elsevier, 1479 BASE Show details

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