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Hanchong Zhang

8 accepted papers

2025

NeuSym-RAG: Hybrid Neural Symbolic Retrieval with Multiview Structuring for PDF Question Answering

ACL 2025long

The increasing number of academic papers poses significant challenges for researchers to efficiently acquire key details. While retrieval augmented generation (RAG) shows great promise in large language model (LLM) based automated question answering, previous works often isolate neural and symbolic…

2024

A Birgat Model for Multi-Intent Spoken Language Understanding with Hierarchical Semantic Frames

ICASSP 2024accepted

Previous work on spoken language understanding (SLU) mainly focuses on single-intent settings, where each input utterance merely contains one user intent. This configuration significantly limits the surface form of user utterances and the capacity of output semantics. In this work, we firstly propos…

Cited by 0SourceScholar
2024

AGILE: A Novel Reinforcement Learning Framework of LLM Agents

NeurIPS 2024poster

We introduce a novel reinforcement learning framework of LLM agents named AGILE (AGent that Interacts and Learns from Environments) designed to perform complex conversational tasks with users, leveraging LLMs, memory, tools, and interactions with experts. The agent possesses capabilities beyond con…

2024

CoE-SQL: In-Context Learning for Multi-Turn Text-to-SQL with Chain-of-Editions

NAACL 2024long

Recently, Large Language Models (LLMs) have been demonstrated to possess impressive capabilities in a variety of domains and tasks. We investigate the issue of prompt design in the multi-turn text-to-SQL task and attempt to enhance the LLMs’ reasoning capacity when generating SQL queries. In the con…

2024

Spider2-V: How Far Are Multimodal Agents From Automating Data Science and Engineering Workflows?

NeurIPS 2024spotlight

Data science and engineering workflows often span multiple stages, from warehousing to orchestration, using tools like BigQuery, dbt, and Airbyte. As vision language models (VLMs) advance in multimodal understanding and code generation, VLM-based agents could potentially automate these workflows by…

2023

ACT-SQL: In-Context Learning for Text-to-SQL with Automatically-Generated Chain-of-Thought

EMNLP 2023long findings

Recently Large Language Models (LLMs) have been proven to have strong abilities in various domains and tasks. We study the problem of prompt designing in the text-to-SQL task and attempt to improve the LLMs' reasoning ability when generating SQL queries. Besides the trivial few-shot in-context learn…

Cited by 0SourcecodeScholar
2023

CSS: A Large-scale Cross-schema Chinese Text-to-SQL Medical Dataset

ACL 2023findings

The cross-domain text-to-SQL task aims to build a system that can parse user questions into SQL on complete unseen databases, and the single-domain text-to-SQL task evaluates the performance on identical databases. Both of these setups confront unavoidable difficulties in real-world applications. To…

2023

Exploring Schema Generalizability of Text-to-SQL

ACL 2023findings

Exploring the generalizability of a text-to-SQL parser is essential for a system to automatically adapt the real-world databases. Previous investigation works mostly focus on lexical diversity, including the influence of the synonym and perturbations in both natural language questions and databases.…

Cited by 2SourcePDFScholar