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Wenjun Ke

29 accepted papers

2026

Balanced Knowledge Distillation for Large Language Models with Mix-of-Experts

AAAI 2026technical

Mixture-of-Experts (MoE) architectures have recently become a more prevalent choice for large language models (LLMs) than dense architectures due to their superior performance. However, billions of parameters bring MoE LLMs a huge cost for deployment and inference. To address these issues, knowledge

Cited by 0SourcePDFScholar
2026

Benchmarking and Enhancing Relational Diagrams Reasoning for Multimodal Large Language Models

IJCAI 2026

Multimodal Large Language Models (MLLMs) have achieved strong performance on a wide range of vision--language tasks. However, their capabilities remain unclear in relational-diagram (RD) reasoning, where correct answers must satisfy diagram-defined constraints such as directed dependencies, branchin

Cited by 0Scholar
2026

Benchmarking and Enhancing Rule Knowledge-Driven Reasoning of Large Language Models

AAAI 2026technical

Large Language Models (LLMs) have demonstrated strong capabilities across diverse tasks under the example-driven learning paradigm. However, in high-stakes domains such as emergency response and industrial safety, historical incidents are scarce, confidential, or both, while concise rule books are a

Cited by 0SourcePDFScholar
2026

Mitigating Tool Overuse for LLMs via Active Knowledge Boundary Probing

IJCAI 2026

Tool-augmented methods aim to enhance the reasoning capabilities of large language models (LLMs) by invoking external tools, which can be broadly categorized into training-free and training-based methods. Training-free methods can directly instruct LLMs to invoke external tools, but they exhibit lim

Cited by 0Scholar
2026

On the Salience of Low-Probability Tokens for AI-Generated Text Detection: A Multiscale Uncertainty Perspective

ICML 2026poster

AI-generated text increasingly blends with human writing, raising practical risks such as misinformation, academic misuse, and corpora contamination. While statistical detectors are appealing for efficiency and generalization, they suffer from two key limitations. (i) Boilerplate dominance, boilerpl…

Cited by 0SourceScholar
2026

Optimizing LoRA Allocation of MoE with the Alignment of Topic Correlation

AAAI 2026technical

Mixture of experts (MoE) dynamically routes inputs to specialized expert networks to scale model capacity with low inference overhead. However, the excessive parameter growth in MoE models poses challenges in low-resource settings. To address these issues, MoE with parameter-efficient fine-tuning (P

Cited by 0SourcePDFScholar
2025

Acquisition and Application of Novel Knowledge in Large Language Models

ACL 2025long

Recent advancements in large language models (LLMs) have demonstrated their impressive generative capabilities, primarily due to their extensive parameterization, which enables them to encode vast knowledge. However, effectively integrating new knowledge into LLMs remains a major challenge. Current…

2025

LLM-Guided Semantic-Aware Clustering for Topic Modeling

ACL 2025long

Topic modeling aims to discover the distribution of topics within a corpus. The advanced comprehension and generative capabilities of large language models (LLMs) have introduced new avenues for topic modeling, particularly by prompting LLMs to generate topics and refine them by merging similar ones…

2025

On the Consistency of Commonsense in Large Language Models

ACL 2025finding

Commonsense, humans’ implicit understanding of everyday situations, is crucial for large language models (LLMs). Existing commonsense evaluations for LLMs primarily focus on downstream knowledge tasks, failing to probe whether LLMs truly understand and utilize knowledge or merely memorize it. They a…

2024

Boosting LLMS with Ontology-Aware Prompt for Ner Data Augmentation

ICASSP 2024accepted

Named Entity Recognition (NER) data augmentation (DA) aims to improve the performance and generalization capabilities of NER models by generating scalable training data. The key challenge lies in ensuring the generated samples maintain contextual diversity while preserving label consistency. However…

Cited by 0SourceScholar
2024

Boosting Textural NER with Synthetic Image and Instructive Alignment

ACL 2024findings

Named entity recognition (NER) is a pivotal task reliant on textual data, often impeding the disambiguation of entities due to the absence of context. To tackle this challenge, conventional methods often incorporate images crawled from the internet as auxiliary information. However, the images often…

2024

CMNEE:A Large-Scale Document-Level Event Extraction Dataset Based on Open-Source Chinese Military News

COLING 2024main

Extracting structured event knowledge, including event triggers and corresponding arguments, from military texts is fundamental to many applications, such as intelligence analysis and decision assistance. However, event extraction in the military field faces the data scarcity problem, which impedes…

2024

ConsistNER: Towards Instructive NER Demonstrations for LLMs with the Consistency of Ontology and Context

AAAI 2024technical

Named entity recognition (NER) aims to identify and classify specific entities mentioned in textual sentences. Most existing superior NER models employ the standard fully supervised paradigm, which requires a large amount of annotated data during training. In order to maintain performance with insuf…

Cited by 5SourcePDFScholar
2024

Domain-Hierarchy Adaptation via Chain of Iterative Reasoning for Few-shot Hierarchical Text Classification

IJCAI 2024poster

Recently, various pre-trained language models (PLMs) have been proposed to prove their impressive performances on a wide range of few-shot tasks. However, limited by the unstructured prior knowledge in PLMs, it is difficult to maintain consistent performance on complex hierarchically dependent tasks…

Cited by 1SourcePDFScholar
2024

Fast and Continual Knowledge Graph Embedding via Incremental LoRA

IJCAI 2024poster

Continual Knowledge Graph Embedding (CKGE) aims to efficiently learn new knowledge and simultaneously preserve old knowledge. Dominant approaches primarily focus on alleviating catastrophic forgetting of old knowledge but neglect efficient learning for the emergence of new knowledge. However, in rea…

2024

Incorporating Schema-Aware Description into Document-Level Event Extraction

IJCAI 2024poster

Document-level event extraction (DEE) aims to extract the structured event information from a given document, facing two critical challenges: (1) event arguments always scatter across sentences (arguments-scattering); (2) multiple events can co-occur in one document (multi-event). Most recent studie…

2024

Learning Multi-Granularity and Adaptive Representation for Knowledge Graph Reasoning

IJCAI 2024poster

Knowledge graph reasoning (KGR) aims to infer new factual triples from existing knowledge graphs (KGs). Recently, a new category of methods, possessing both transductive and inductive reasoning capabilities, has been proposed to tackle this task via learning entity-independent representations from l…

Cited by 1SourcePDFScholar
2024

Making LLMs as Fine-Grained Relation Extraction Data Augmentor

IJCAI 2024poster

Relation Extraction (RE) identifies relations between entities in text, typically relying on supervised models that demand abundant high-quality data. Various approaches, including Data Augmentation (DA), have been proposed as promising solutions for addressing low-resource challenges in RE. However…

2024

OntoFact: Unveiling Fantastic Fact-Skeleton of LLMs via Ontology-Driven Reinforcement Learning

AAAI 2024technical

Large language models (LLMs) have demonstrated impressive proficiency in information retrieval, while they are prone to generating incorrect responses that conflict with reality, a phenomenon known as intrinsic hallucination. The critical challenge lies in the unclear and unreliable fact distributio…

2024

Recall, Retrieve and Reason: Towards Better In-Context Relation Extraction

IJCAI 2024poster

Relation extraction (RE) aims to identify relations between entities mentioned in texts. Although large language models (LLMs) have demonstrated impressive in-context learning (ICL) abilities in various tasks, they still suffer from poor performances compared to most supervised fine-tuned RE methods…

2024

Towards Continual Knowledge Graph Embedding via Incremental Distillation

AAAI 2024technical

Traditional knowledge graph embedding (KGE) methods typically require preserving the entire knowledge graph (KG) with significant training costs when new knowledge emerges. To address this issue, the continual knowledge graph embedding (CKGE) task has been proposed to train the KGE model by learning…

2024

Unify Named Entity Recognition Scenarios via Contrastive Real-Time Updating Prototype

AAAI 2024technical

Supervised named entity recognition (NER) aims to classify entity mentions into a fixed number of pre-defined types. However, in real-world scenarios, unknown entity types are continually involved. Naive fine-tuning will result in catastrophic forgetting on old entity types. Existing continual metho…

Cited by 5SourcePDFScholar
2024

Unlocking Instructive In-Context Learning with Tabular Prompting for Relational Triple Extraction

COLING 2024main

The in-context learning (ICL) for relational triple extraction (RTE) has achieved promising performance, but still encounters two key challenges: (1) how to design effective prompts and (2) how to select proper demonstrations. Existing methods, however, fail to address these challenges appropriately…

Cited by 13SourcePDFScholar
2024

Unveiling LoRA Intrinsic Ranks via Salience Analysis

NeurIPS 2024poster

The immense parameter scale of large language models underscores the necessity for parameter-efficient fine-tuning methods. Methods based on Low-Rank Adaptation (LoRA) assume the low-rank characteristics of the incremental matrix and optimize the matrix obtained from low-rank decomposition. Although…

2023

Towards Incremental NER Data Augmentation via Syntactic-aware Insertion Transformer

IJCAI 2023poster

Named entity recognition (NER) aims to locate and classify named entities in natural language texts. Most existing high-performance NER models employ a supervised paradigm, which requires a large quantity of high-quality annotated data during training. In order to help NER models perform well in few…

Cited by 3SourcePDFScholar
2023

fmLRE: A Low-Resource Relation Extraction Model Based on Feature Mapping Similarity Calculation

AAAI 2023technical

Low-resource relation extraction (LRE) aims to extract relations from limited labeled corpora. Existing work takes advantages of self-training or distant supervision to expand the limited labeled data in the data-driven approaches, while the selection bias of pseudo labels may cause the error accum…