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This paper introduces the novel task of topic coherence evaluation, whereby a set of words, as generated by a topic model, is rated for coherence or interpretability. We apply a range of topic scoring models to the evaluation task, drawing on WordNet, Wikipedia and the Google search engine, and existing research on lexical similarity/relatedness. In(More)
We propose a method for automatically labelling topics learned via LDA topic models. We generate our label candidate set from the top-ranking topic terms, titles of Wikipedia articles containing the top-ranking topic terms, and sub-phrases extracted from the Wikipedia article titles. We rank the label candidates using a combination of association measures(More)
Exhibits within cultural heritage collections such as museums and art galleries are arranged by experts with intimate knowledge of the domain, but there may exist connections between individual exhibits that are not evident in this representation. For example, the visitors to such a space may have their own opinions on how exhibits relate to one another. In(More)
This research is concerned with making recommendations to museum visitors based on their history within the physical environment, and textual information associated with each item in their history. We investigate a method of providing such recommendations to users through a combination of language modelling techniques, geospatial modelling of the physical(More)
In this paper we present our systems for calculating the degree of semantic similarity between two texts that we submitted to the Semantic Textual Similarity task at SemEval-2013. Our systems predict similarity using a regression over features based on the following sources of information: string similarity , topic distributions of the texts based on latent(More)
Virtual environments such as internet web sites, virtual maps, and even video game landscapes provide digital representations of conceptual or real spaces. In many cases these virtual maps are best understood by relating them to a corresponding physical environment. Moving around these virtual spaces gives users a feeling of moving through a simulated(More)
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