Zhengnan Xie

Multi-class Hierarchical Question Classification for Multiple Choice Science Exams

2019 · arXiv (Cornell University)

Prior work has demonstrated that question classification (QC), recognizing the problem domain of a question, can help answer it more accurately. However, developing strong QC algorithms has been hindered by the limited size and complexity …

WorldTree V2: A corpus of science-domain structured explanations and inference patterns supporting multi-hop inference

2020 · UA Campus Repository (The University of Arizona)

Explainable question answering for complex questions often requires combining large numbers of facts to answer a question while providing a human-readable explanation for the answer, a process known as multi-hop inference. Standardized science questions require …