Jinhyuk Lee

Learning User Preferences and Understanding Calendar Contexts for Event Scheduling

2018

With online calendar services gaining popularity worldwide, calendar data has become one of the richest context sources for understanding human behavior. However, event scheduling is still time-consuming even with the development of online calendars. Although …

Multi-Vector Retrieval as Sparse Alignment

2022 · arXiv (Cornell University)

Multi-vector retrieval models improve over single-vector dual encoders on many information retrieval tasks. In this paper, we cast the multi-vector retrieval problem as sparse alignment between query and document tokens. We propose AligneR, a novel …

Real-Time Open-Domain Question Answering with Dense-Sparse Phrase Index

2019

Existing open-domain question answering (QA) models are not suitable for real-time usage because they need to process several long documents on-demand for every input query, which is computationally prohibitive. In this paper, we introduce query-agnostic …