Lei Zou

Crake: Causal-Enhanced Table-Filler for Question Answering over Large Scale Knowledge Base

2022 · arXiv (Cornell University)

Semantic parsing solves knowledge base (KB) question answering (KBQA) by composing a KB query, which generally involves node extraction (NE) and graph composition (GC) to detect and connect related nodes in a query. Despite the …

gBuilder: A Scalable Knowledge Graph Construction System for Unstructured Corpus

2022 · arXiv (Cornell University)

We design a user-friendly and scalable knowledge graph construction (KGC) system for extracting structured knowledge from the unstructured corpus. Different from existing KGC systems, gBuilder provides a flexible and user-defined pipeline to embrace the rapid …

Joint Event-Partner Recommendation in Event-Based Social Networks

2018

With the prevalent trend of combining online and offline interactions among users in event-based social networks (EBSNs), event recommendation has become an essential means to help people discover new interesting events to attend. However, existing …

Question answering over knowledge graphs

2018 · Proceedings of the VLDB Endowment

The gap between unstructured natural language and structured data makes it challenging to build a system that supports using natural language to query large knowledge graphs. Many existing methods construct a structured query for the …