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Model Comparison for Semantic Grouping
Francisco Vargas · Kamen Brestnichki · Nils Hammerla

Thu Jun 13 06:30 PM -- 09:00 PM (PDT) @ Pacific Ballroom #219

We introduce a probabilistic framework for quantifying the semantic similarity between two groups of embeddings. We formulate the task of semantic similarity as a model comparison task in which we contrast a generative model which jointly models two sentences versus one that does not. We illustrate how this framework can be used for the Semantic Textual Similarity tasks using clear assumptions about how the embeddings of words are generated. We apply model comparison that utilises information criteria to address some of the shortcomings of Bayesian model comparison, whilst still penalising model complexity. We achieve competitive results by applying the proposed framework with an appropriate choice of likelihood on the STS datasets.

Author Information

Francisco Vargas (Babylon Health)
Kamen Brestnichki (Babylon Health)
Nils Hammerla (Babylon Health)

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