The University of Amsterdam's Question Answering System at QA@CLEF 2007. - Valentin Jijkoun; Katja Hofmann; David Ahn; Mahboob Alam Khalid; Joris van Rantwijk; Maarten de Rijke; Erik F. Tjong Kim Sang (CLEF, 2007)

The University of Amsterdam at CLEF@QA 2007. - Valentin Jijkoun; Katja Hofmann; David Ahn; Mahboob Alam Khalid; Joris van Rantwijk; Maarten de Rijke; Erik F. Tjong Kim Sang (CLEF (Working Notes), 2007)

Machine Learning for Question Answering from Tabular Data. - Mahboob Alam Khalid; Valentin Jijkoun; Maarten de Rijke (DEXA Workshops, 2007)

The University of Amsterdam at the TREC 2007 QA Track. - Katja Hofmann; Valentin Jijkoun; Mahboob Alam Khalid; Joris van Rantwijk; Erik F. Tjong Kim Sang (TREC, 2007)

The Impact of Named Entity Normalization on Information Retrieval for Question Answering. - Mahboob Alam Khalid; Valentin Jijkoun; Maarten de Rijke (ECIR, 2008)

Named entity normalization in user generated content. - Valentin Jijkoun; Mahboob Alam Khalid; Maarten Marx; Maarten de Rijke (AND, 2008)