Papers by Xue Lin

18 papers
Syntax-guided Localized Self-attention by Constituency Syntactic Distance (2022.findings-emnlp)

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Challenge: Recent studies have shown that Transformers is implicitly learning syntactic information from data, albeit is highly dependent on the quality and scale of the training data.
Approach: They propose a syntax-guided localized self-attention model that allows directly incorporating grammar structures from an external constituency parser.
Outcome: The proposed model improves translation performance on a variety of datasets, from small to large datasets and with different source languages.
S2S-Arena: Evaluating Paralinguistic Instruction Following in Speech-to-Speech Models (2026.acl-long)

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Challenge: Existing benchmarks rely heavily on text-based evaluation and largely ignore paralinguistic cues such as prosody, emotion, and speaker traits.
Approach: They propose a speech-native benchmark for evaluating instruction-following S2S models with explicit assessment of both semantic understanding and paralinguistic expression.
Outcome: The proposed system enables more natural, robust, and human-aligned speech agents.
Disentangling Logic: The Role of Context in Large Language Model Reasoning Capabilities (2025.findings-acl)

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Challenge: Using large language models, large language model models can be used to evaluate reasoning abilities in context-rich scenarios.
Approach: They construct datasets for both propositional logic and abductive logic reasoning with four difficulty levels across 12 distinct domains based on Wikipedia categorization and those with purely abstract variables.
Outcome: The proposed model can be used to benchmark LLMs in real-world scenarios, but not in context-rich scenarios.
A Semi-supervised Scalable Unified Framework for E-commerce Query Classification (2025.acl-industry)

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Challenge: Existing query classification methods rely on posterior click behavior to construct training samples, resulting in insufficient prior information for modeling.
Approach: They propose a semi-supervised scaleable unified framework that integrates enhanced modules to unify query classification tasks.
Outcome: The proposed framework outperforms the state-of-the-art models in offline and online A/B experiments.
Parameter Importance is Not Static: Evolving Parameter Isolation for Supervised Fine-Tuning (2026.acl-long)

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Challenge: Recent approaches to fine-tuning of large language models suffer from task interference and catastrophic forgetting.
Approach: They propose a fine-tuning framework that adapts isolation decisions based on online estimates of parameter importance.
Outcome: The proposed framework reduces interference and forgetting while releasing outdated parameters to recover plasticity.
Knowledgeable or Educated Guess? Revisiting Language Models as Knowledge Bases (2021.acl-long)

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Challenge: Recent studies show that pre-trained masked language models can be factual knowledge bases.
Approach: They conduct a rigorous study to explore the underlying predicting mechanisms of MLMs . they find that previous decent performance mainly owes to the biased prompts which overfit dataset artifacts a .
Outcome: The proposed model improves on illustrative cases and external contexts . the results question the previous findings that MLMs can be reliable factual knowledge bases .
GAM: Hierarchical Graph-based Agentic Memory for LLM Agents (2026.acl-long)

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Challenge: Current unified stream-based memory systems facilitate context updates but remain vulnerable to interference from transient noise.
Approach: They propose a hierarchical Graph-based Agentic Memory framework that explicitly decouples memory encoding from consolidation to resolve conflict between rapid context perception and stable knowledge retention.
Outcome: The proposed framework outperforms state-of-the-art benchmarks on LoCoMo and LongDialQA.
START: Self-taught Reasoner with Tools (2025.emnlp-main)

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Challenge: Large Reasoning Models (LRMs) have demonstrated remarkable capabilities in complex reasoning through long chain-of-thought, yet they struggle with precise computations and algorithmic operations.
Approach: They propose a training-free approach that activates LRMs’ latent tool-use capabilities through artificial hints and a framework that enables models to learn effective tool utilization through diverse hint patterns and rejection-based data synthesis.
Outcome: Experiments show that START significantly improves state-of-the-art LRMs across challenging benchmarks, including competition-level mathematics (AMC23: 95.0%, AIME24: 75.6%) and graduate-level science questions (GPQA: 64.6%).
Editing-Based SQL Query Generation for Cross-Domain Context-Dependent Questions (D19-1)

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Challenge: Generating SQL queries from user utterances is an important task to help end users acquire information from databases.
Approach: They propose a context-dependent text-to-SQL generation task that edits previous queries . they use an utterance-table encoder and a table-aware decoder to incorporate context .
Outcome: The proposed model is flexible to change individual tokens and robust to error propagation.
Rethinking Token Reduction for State Space Models (2024.emnlp-main)

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Challenge: Existing methods for token reduction for SSMs lead to performance drops . a recent study shows that Mamba-2 improves the accuracy of the model by 5.7% to 13.1% .
Approach: They propose a token reduction method that integrates token importance and similarity into SSMs and takes advantage of pruning and merging.
Outcome: The proposed method improves accuracy by 5.7% to 13.1% on six benchmarks with Mamba-2 compared to existing methods while reducing computational demands and memory requirements.
MSG-LLM: A Multi-scale Interactive Framework for Graph-enhanced Large Language Models (2025.coling-main)

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Challenge: Existing graph-enhanced large language models (LLMs) focus on matching subgraphs between subgraph and candidate subgraph at the same scale, neglecting that subgraph with different scales may also share similar semantics or structures.
Approach: They propose to use graph kernel search to discover subgraphs from the entire graph to bridge the graph and LLMs, helping with graph retrieval and LRM generation.
Outcome: The proposed method achieves state-of-the-art on two graph-based tasks and the results are published in the journal Nature.
ChatMusician: Understanding and Generating Music Intrinsically with LLM (2024.findings-acl)

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Challenge: Despite LLMs' impressive capabilities in musical knowledge, music reasoning remains an unsolved task.
Approach: They propose an open-source large language model (LLM) that integrates intrinsic musical abilities into LLaMA2 and GPT-3.5.
Outcome: The proposed model can understand and generate music with a pure text tokenizer without external multi-modal neural structures or tokenizers.
Breakthrough from Nuance and Inconsistency: Enhancing Multimodal Sarcasm Detection with Context-Aware Self-Attention Fusion and Word Weight Calculation. (2024.lrec-main)

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Challenge: Existing methods for sarcasm detection rely on feature concatenation to fuse different modalities or model inconsistencies among modalités.
Approach: They propose to use Context-Aware Self-Attention Fusion to integrate local and momentary multimodal information into specific words to illustrate the inconsistencies between connotation and denotation.
Outcome: The proposed method achieves an accuracy of 76.9 and an F1 score of 76.1 on the MUStARD dataset, surpassing the current state-of-the-art IWAN model by 1.7 and 1.6 respectively.
CKDST: Comprehensively and Effectively Distill Knowledge from Machine Translation to End-to-End Speech Translation (2023.findings-acl)

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Challenge: End-to-end speech-totext translation (ST) data are limited due to the limited resources.
Approach: They propose a knowledge distillation framework for speech translation that integrates knowledge from machine translation and decouples knowledge from non-target class knowledge.
Outcome: The proposed framework outperforms state-of-the-art models on a benchmark dataset.
Understanding LLMs’ Cross-Lingual Context Retrieval: How Good It Is And Where It Comes From (2025.emnlp-main)

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Challenge: Cross-lingual context retrieval is a fundamental aspect of cross-lingual alignment, but the performance and mechanism of it for large language models (LLMs) remains unclear.
Approach: They evaluate cross-lingual context retrieval of over 40 large language models . they use cross-linguistic machine reading comprehension as a representative scenario .
Outcome: The results show that open LLMs show strong cross-lingual context retrieval ability . the results also show that their oracle performances improve after training .
Pruning Foundation Models for High Accuracy without Retraining (2024.findings-emnlp)

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Challenge: Despite the superior performance of foundation models, it is challenging to deploy large language models in practical applications due to their massive parameters and computations.
Approach: They propose a pruning algorithm to prune LLMs in one-shot without retraining . they propose retrainable pruning algorithms to prune multiple weights in LLM .
Outcome: The proposed pruning methods perform better than baseline pruning methods on sparse and unstructured sparsity models.
OSCR-Attack: One-Shot Character Level Attacks through Self-Optimizing Continuous Relaxation (2026.findings-acl)

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Challenge: Character-level adversarial attacks preserve semantics but are costly and inefficient . generative LLMs are gaining popularity due to their uncertainty and vulnerability to textual adversarials .
Approach: They propose an end-to-end framework that transforms discrete choices into continuous representations and a conflict resolution strategy that maps them back into discrete insertion operations.
Outcome: The proposed framework improves ASR by 21.45% points and accelerates the attack by 3.66 times compared to baselines.
CoSQL: A Conversational Text-to-SQL Challenge Towards Cross-Domain Natural Language Interfaces to Databases (D19-1)

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Challenge: CoSQL is a corpus for building cross-domain, general-purpose database querying dialogue systems.
Approach: They present a corpus for building cross-domain, general-purpose database querying dialogue systems . they use a Wizard-of-Oz collection of 3k turns plus 10k+ annotated SQL queries .
Outcome: The proposed corpus is based on a Wizard-of-Oz dataset of 3k dialogues querying 200 complex DBs spanning 138 domains.

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