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Rosario Uceda-Sosa

3 accepted papers

2024

CHRONOS: A Schema-Based Event Understanding and Prediction System

AAAI 2024technical

Chronological and Hierarchical Reasoning Over Naturally Occurring Schemas (CHRONOS) is a system that combines language model-based natural language processing with symbolic knowledge representations to analyze and make predictions about newsworthy events. CHRONOS consists of an event-centric informa…

Cited by 1SourcePDFScholar
2023

Learning Symbolic Rules over Abstract Meaning Representations for Textual Reinforcement Learning

ACL 2023long

Text-based reinforcement learning agents have predominantly been neural network-based models with embeddings-based representation, learning uninterpretable policies that often do not generalize well to unseen games. On the other hand, neuro-symbolic methods, specifically those that leverage an inter…

2022

SYGMA: A System for Generalizable and Modular Question Answering Over Knowledge Bases

EMNLP 2022finding

Knowledge Base Question Answering (KBQA) involving complex reasoning is emerging as an important research direction. However, most KBQA systems struggle with generalizability, particularly on two dimensions: (a) across multiple knowledge bases, where existing KBQA approaches are typically tuned to a…