Papers by Zhe Qu
SQL-ASTRA: Alleviating Sparse Feedback in Agentic SQL via Column-Set Matching and Trajectory Aggregation (2026.findings-acl)
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| Challenge: | Agentic SQL is a framework for multiturn agent learning, but it is limited to single-turn paradigms. |
| Approach: | They propose a framework that provides a universal two-tiered reward mechanism for credit assignment . they propose 'Aggregated Trajectory Reward' to resolve multi-turn credit assignment. |
| Outcome: | The proposed framework outperforms SOTA Arctic-Text2SQL-R1-7B on BIRD and Spider 2.0 using identical models. |
MARE: Multi-Aspect Rationale Extractor on Unsupervised Rationale Extraction (2024.emnlp-main)
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| Challenge: | Existing methods to extract text snippets from input text to support model predictions without explicit rationale annotation have limited their ability to capture meaningful internal correlations between aspects. |
| Approach: | They propose a multi-aspect rationale extractor that extracts text snippets to support model predictions without explicit rationale annotation. |
| Outcome: | The proposed method achieves state-of-the-art on two unsupervised rationale extraction benchmarks. |
Exploring Intrinsic Language-specific Subspaces in Fine-tuning Multilingual Neural Machine Translation (2024.emnlp-main)
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| Challenge: | Multilingual neural machine translation models support fine-tuning hundreds of languages simultaneously. |
| Approach: | They propose to fine-tune a language in its intrinsic subspace with a tiny fraction of entire parameters. |
| Outcome: | The proposed methods outperform full-parameter fine-tuning up to 2.25 spBLEU scores and reduce trainable parameters to 0.4% for high and medium-resource languages and 1.6% for low-resourced ones. |
Exploring Dual Encoder Architectures for Question Answering (2022.emnlp-main)
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| Challenge: | Dual encoders have been used for question-answering and information retrieval tasks with good results. |
| Approach: | They propose to use two different versions of dual encoders for QA retrieval tasks . they propose to share parameters in projection layers between two encoder towers . |
| Outcome: | The proposed architectures outperform SDE and ADE on QA retrieval tasks. |