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Francisco C. Pereira

3 accepted papers

2025

Plugging Schema Graph into Multi-Table QA: A Human-Guided Framework for Reducing LLM Reliance

EMNLP 2025

Large language models (LLMs) have shown promise in table Question Answering (Table QA). However, extending these capabilities to multi-table QA remains challenging due to unreliable schema linking across complex tables. Existing methods based on semantic similarity work well only on simplified hand-

2023

Graph Reinforcement Learning for Network Control via Bi-Level Optimization

ICML 2023poster

Optimization problems over dynamic networks have been extensively studied and widely used in the past decades to formulate numerous real-world problems. However, (1) traditional optimization-based approaches do not scale to large networks, and (2) the design of good heuristics or approximation algor…

2022

Bayesian Active Learning with Fully Bayesian Gaussian Processes

NeurIPS 2022accept

The bias-variance trade-off is a well-known problem in machine learning that only gets more pronounced the less available data there is. In active learning, where labeled data is scarce or difficult to obtain, neglecting this trade-off can cause inefficient and non-optimal querying, leading to unnec…