HyperKGQA: Question Answering over Knowledge Graphs using Hyperbolic Representation Learning. - Nadya Abdel Madjid; Ola El Khatib; Shuang Gao; Djellel Eddine Difallah (ICDM, 2022)

BeamQA: Multi-hop Knowledge Graph Question Answering with Sequence-to-Sequence Prediction and Beam Search. - Farah Atif; Ola El Khatib; Djellel Eddine Difallah (SIGIR, 2023)