Investigation into Human Preference between Common and Unambiguous Lexical Substitutions. - Andrew D. Walker; Advaith Siddharthan; Andrew J. Starkey (ENLG, 2011)

Making Test Corpora for Question Answering More Representative. - Andrew D. Walker; Andrew J. Starkey; Jeff Z. Pan; Advaith Siddharthan (CLEF, 2014)

Towards Ontology-Based Question Answering in Vague Domains. - Panos Alexopoulos; Andrew D. Walker; José Manuél Gómez-Pérez; Manolis Wallace (SMAP, 2014)

Answer Type Identification for Question Answering - Supervised Learning of Dependency Graph Patterns from Natural Language Questions. - Andrew D. Walker; Panos Alexopoulos; Andrew J. Starkey; Jeff Z. Pan; José Manuél Gómez-Pérez; Advaith Siddharthan (JIST, 2015)

Question Answering and Knowledge Graphs. - Alessandro Moschitti; Kateryna Tymoshenko; Panos Alexopoulos; Andrew D. Walker; Massimo Nicosia; Guido Vetere; Alessandro Faraotti; Marco Monti; Jeff Z. Pan; Honghan Wu; Yuting Zhao (Exploiting Linked Data and Knowledge Graphs in Large Organisations, 2017)