Alongside huge volumes of research on deep learning models in NLP in the recent years,
there has been much work on benchmark datasets needed to track modeling progress …

This paper provides an extensive and thorough overview of the models and techniques
utilized in the first and second stages of the typical information retrieval processing chain …

Passage-level question answer matching is a challenging task since it requires effective
representations that capture the complex semantic relations between questions and …

Most text-based information retrieval (IR) systems index objects by words or phrases. These
discrete systems have been augmented by models that use embeddings to measure …