Amir Hadifar

UGent-T2K at the 2nd DialDoc Shared Task: A Retrieval-Focused Dialog System Grounded in Multiple Documents

2022

This work presents the contribution from the Text-to-Knowledge team of Ghent University (UGent-T2K) 1 to the MultiDoc2Dial shared task on modeling dialogs grounded in multiple documents. We propose a pipeline system, comprising (1) document retrieval, …

A Self-Training Approach for Short Text Clustering

2019

Short text clustering is a challenging problem when adopting traditional bag-of-words or TF-IDF representations, since these lead to sparse vector representations for short texts. Lowdimensional continuous representations or embeddings can counter that sparseness problem: their …