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Chao Xue

13 accepted papers

2026

Reinforcement Learning Enhanced Muti-hop Reasoning for Temporal Knowledge Question Answering

AAAI 2026technical

Temporal knowledge graph question answering (TKGQA) involves multi-hop reasoning over temporally constrained entity relationships in the knowledge graph to answer a given question. However, at each hop, large language models (LLMs) retrieve subgraphs with numerous temporally similar and semanticall

Cited by 0SourcePDFScholar
2025

Beyond Human Data: Aligning Multimodal Large Language Models by Iterative Self-Evolution

AAAI 2025technical

Human preference alignment can significantly enhance the capabilities of Multimodal Large Language Models (MLLMs). However, collecting high-quality preference data remains costly. One promising solution is the self-evolution strategy, where models are iteratively trained on data they generate. Curre…

2025

Joint Learning Event-Specific Probe and Argument Library with Differential Optimization for Document-Level Multi-Event Extraction

NAACL 2025findings

Document-level multi-event extraction aims to identify a list of event types and corresponding arguments from the document. However, most of the current methods neglect the fine-grained difference among events in multi-event documents, which leads to event confusion and missing. This is also one of…

Cited by 0SourcePDFScholar
2025

Layer as Puzzle Pieces: Compressing Large Language Models through Layer Concatenation

NeurIPS 2025poster

Large Language Models (LLMs) excel at natural language processing tasks, but their massive size leads to high computational and storage demands. Recent works have sought to reduce their model size through layer-wise structured pruning. However, they tend to ignore retaining the capabilities in the p…

Cited by 0SourceScholar
2025

Modeling All Response Surfaces in One for Conditional Search Spaces

AAAI 2025technical

Bayesian Optimization (BO) is a sample-efficient black-box optimizer commonly used in search spaces where hyperparameters are independent. However, in many practical AutoML scenarios, there will be dependencies among hyperparameters, forming a conditional search space, which can be partitioned into…

Cited by 0SourcePDFScholar
2024

Question Calibration and Multi-Hop Modeling for Temporal Question Answering

AAAI 2024technical

Many models that leverage knowledge graphs (KGs) have recently demonstrated remarkable success in question answering (QA) tasks. In the real world, many facts contained in KGs are time-constrained thus temporal KGQA has received increasing attention. Despite the fruitful efforts of previous models i…

Cited by 6SourcePDFScholar
2023

Dual Path Modeling for Semantic Matching by Perceiving Subtle Conflicts

ICASSP 2023accepted

Transformer-based pre-trained models have achieved great improvements in semantic matching. However, existing models still suffer from insufficient ability to capture subtle differences. The modification, addition and deletion of words in sentence pairs may make it difficult for the model to predict…

Cited by 0SourceScholar
2021

Multi-Label Few-Shot Learning for Aspect Category Detection

ACL 2021long

Aspect category detection (ACD) in sentiment analysis aims to identify the aspect categories mentioned in a sentence. In this paper, we formulate ACD in the few-shot learning scenario. However, existing few-shot learning approaches mainly focus on single-label predictions. These methods can not work…

Cited by 52SourcePDFScholar
2021

Rethinking Bi-Level Optimization in Neural Architecture Search: A Gibbs Sampling Perspective

AAAI 2021technical

One-Shot architecture search, which aims to explore all possible operations jointly based on a single model, has been an active direction of Neural Architecture Search (NAS). As a well-known one-shot solution, Differentiable Architecture Search (DARTS) performs continuous relaxation on the architect…

Cited by 29SourcePDFScholar
2020

MergeNAS: Merge Operations into One for Differentiable Architecture Search

IJCAI 2020poster

Differentiable architecture search (DARTS) has been a promising one-shot architecture search approach for its mathematical formulation and competitive results. However, besides its caused high memory utilization and a large computation requirement, many research works have shown that DARTS also ofte…

Cited by 0SourcePDFScholar
2019

Transferable AutoML by Model Sharing Over Grouped Datasets

CVPR 2019poster

Automated Machine Learning (AutoML) is an active area on the design of deep neural networks for specific tasks and datasets. Given the complexity of discovering new network designs, methods for speeding up the search procedure are becoming important. This paper presents a so-called transferable Auto…

Cited by 32PDFScholar