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Steven Derby

3 accepted papers

2024

SPICED: News Similarity Detection Dataset with Multiple Topics and Complexity Levels

COLING 2024main

The proliferation of news media outlets has increased the demand for intelligent systems capable of detecting redundant information in news articles in order to enhance user experience. However, the heterogeneous nature of news can lead to spurious findings in these systems: Simple heuristics such a…

2024

Topics as Entity Clusters: Entity-based Topics from Large Language Models and Graph Neural Networks

COLING 2024main

Topic models aim to reveal latent structures within a corpus of text, typically through the use of term-frequency statistics over bag-of-words representations from documents. In recent years, conceptual entities — interpretable, language-independent features linked to external knowledge resources —…

2020

Encoding Lexico-Semantic Knowledge using Ensembles of Feature Maps from Deep Convolutional Neural Networks

COLING 2020main

Semantic models derived from visual information have helped to overcome some of the limitations of solely text-based distributional semantic models. Researchers have demonstrated that text and image-based representations encode complementary semantic information, which when combined provide a more c…