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Tiejun Zhao

46 accepted papers

2026

Culture In a Frame: C$^3$B as a Comic-Based Benchmark for Multimodal Culturally Awareness

ICLR 2026poster

Cultural awareness capabilities has emerged as a critical capability for Multimodal Large Language Models (MLLMs). However, current benchmarks lack progressed difficulty in their task design and are deficient in cross-lingual tasks. Moreover, current benchmarks often use real-world images. Each real…

Cited by 0SourceScholar
2026

Long-form RewardBench: Evaluating Reward Models for Long-form Generation

AAAI 2026technical

The widespread adoption of reinforcement learning-based alignment highlights the growing importance of reward models. Various benchmarks have been built to evaluate reward models in various domains and scenarios. However, a significant gap remains in assessing reward models for long-form generation,

Cited by 0SourcePDFScholar
2026

Lost in Benchmarks? Rethinking Large Language Model Benchmarking with Item Response Theory

AAAI 2026technical

The evaluation of large language models (LLMs) via benchmarks is widespread, yet inconsistencies between different leaderboards and poor separability among top models raise concerns about their ability to accurately reflect authentic model capabilities. This paper provides a critical analysis of ben

Cited by 0SourcePDFScholar
2026

RM-Distiller: Exploiting Generative LLM for Reward Model Distillation

IJCAI 2026

Reward models (RMs) play a pivotal role in aligning large language models (LLMs) with human preferences. Due to the difficulty of obtaining high-quality human preference annotations, distilling preferences from generative LLMs has emerged as a standard practice. However, existing approaches predomin

Cited by 0Scholar
2026

User-Aware Active Knowledge Acquisition for Emotional Support Dialogue

ICML 2026poster

Emotional support plays an important role in dialogue systems, and its success depends on adapting to a user’s evolving and implicit needs across multi-turn interactions while leveraging the strong reasoning capacity of large language models (LLMs). However, since user needs are often weakly supervi…

Cited by 0SourceScholar
2025

A Chain-of-Task Framework for Instruction Tuning of LLMs Based on Chinese Grammatical Error Correction

COLING 2025main

Over-correction is a critical issue for large language models (LLMs) to address Grammatical Error Correction (GEC) task, esp. for Chinese. This paper proposes a Chain-of-Task (CoTask) framework to reduce over-correction. The CoTask framework is applied as multi-task instruction tuning of LLMs by dec…

2025

An Empirical Study of LLM-as-a-Judge for LLM Evaluation: Fine-tuned Judge Model is not a General Substitute for GPT-4

ACL 2025finding

Recently, there has been a growing trend of utilizing Large Language Model (LLM) to evaluate the quality of other LLMs. Many studies have fine-tuned judge models based on open-source LLMs for evaluation. While the fine-tuned judge models are claimed to achieve comparable evaluation capability with G…

2025

Benchmarking LLMs for Translating Classical Chinese Poetry: Evaluating Adequacy, Fluency, and Elegance

EMNLP 2025

Large language models (LLMs) have shown remarkable performance in general translation tasks. However, the increasing demand for high-quality translations that are not only adequate but also fluent and elegant. To assess the extent to which current LLMs can meet these demands, we introduce a suitable

2025

LLM-based Translation Inference with Iterative Bilingual Understanding

ACL 2025finding

The remarkable understanding and generation capabilities of large language models (LLMs) have greatly improved translation performance. However, incorrect understanding of the sentence to be translated can degrade translation quality. To address this issue, we proposed a novel Iterative Bilingual Un…

2025

LoRA-drop: Efficient LoRA Parameter Pruning based on Output Evaluation

COLING 2025main

Low-Rank Adaptation (LoRA) is currently the most commonly used Parameter-efficient fine-tuning (PEFT) method. However, it still faces high computational and storage costs to models with billions of parameters. Most previous studies have tackled this issue by using pruning techniques. Nonetheless, th…

Cited by 20SourcePDFScholar
2025

Look Before You Leap: Enhance Attention and Vigilance Regarding Harmful Content with GuidelineLLM

AAAI 2025technical

Despite being empowered with alignment mechanisms, large language models (LLMs) are increasingly vulnerable to emerging jailbreak attacks that can compromise their alignment mechanisms. This vulnerability poses significant risks to real-world applications. Existing work faces challenges in both tra…

2025

MAGE: Multimodal Alignment and Generation Enhancement via Bridging Visual and Semantic Spaces

IJCAI 2025

In the latest advancements in multimodal learning, effectively addressing the spatial and semantic losses of visual data after encoding remains a critical challenge. This is because the performance of large multimodal models is positively correlated with the coupling between visual encoders and larg

2025

Make Imagination Clearer! Stable Diffusion-based Visual Imagination for Multimodal Machine Translation

ACL 2025long

Visual information has been introduced for enhancing machine translation (MT), and its effectiveness heavily relies on the availability of large amounts of bilingual parallel sentence pairs with manual image annotations. In this paper, we introduce a stable diffusion-based imagination network into a…

2025

Memory-augmented Query Reconstruction for LLM-based Knowledge Graph Reasoning

ACL 2025finding

Large language models (LLMs) have achieved remarkable performance on knowledge graph question answering (KGQA) tasks by planning and interacting with knowledge graphs. However, existing methods often confuse tool utilization with knowledge reasoning, harming readability of model outputs and giving r…

2025

MuSC: Improving Complex Instruction Following with Multi-granularity Self-Contrastive Training

ACL 2025long

Complex instruction-following with elaborate constraints is imperative for Large Language Models (LLMs). While existing methods have constructed data for complex instruction alignment, they all rely on a more advanced model, especially GPT-4, limiting their application. In this paper, we propose a M…

2025

Thinking in Character: Advancing Role-Playing Agents with Role-Aware Reasoning

NeurIPS 2025poster

The advancement of Large Language Models (LLMs) has spurred significant interest in Role-Playing Agents (RPAs) for applications such as emotional companionship and virtual interaction. However, recent RPAs are often built on explicit dialogue data, lacking deep, human-like internal thought processes…

Cited by 0SourceScholar
2024

DUAL-REFLECT: Enhancing Large Language Models for Reflective Translation through Dual Learning Feedback Mechanisms

ACL 2024short

Recently, large language models (LLMs) enhanced by self-reflection have achieved promising performance on machine transla004 tion. The key idea is guiding LLMs to generate translation with human-like feedback. However, existing self-reflection methods lack effective feedback information, limiting th…

2024

Dynamic Planning for LLM-based Graphical User Interface Automation

EMNLP 2024finding

The advent of large language models (LLMs) has spurred considerable interest in advancing autonomous LLMs-based agents, particularly in intriguing applications within smartphone graphical user interfaces (GUIs). When presented with a task goal, these agents typically emulate human actions within a G…

2024

Enhancing Bilingual Lexicon Induction via Bi-directional Translation Pair Retrieving

AAAI 2024technical

Most Bilingual Lexicon Induction (BLI) methods retrieve word translation pairs by finding the closest target word for a given source word based on cross-lingual word embeddings (WEs). However, we find that solely retrieving translation from the source-to-target perspective leads to some false positi…

Cited by 3SourcePDFScholar
2024

Self-Evaluation of Large Language Model based on Glass-box Features

EMNLP 2024finding

The proliferation of open-source Large Language Models (LLMs) underscores the pressing need for evaluation methods. Existing works primarily rely on external evaluators, focusing on training and prompting strategies. However, a crucial aspect – model-aware glass-box features – is overlooked. In this…

2024

Spot the Error: Non-autoregressive Graphic Layout Generation with Wireframe Locator

AAAI 2024technical

Layout generation is a critical step in graphic design to achieve meaningful compositions of elements. Most previous works view it as a sequence generation problem by concatenating element attribute tokens (i.e., category, size, position). So far the autoregressive approach (AR) has achieved promisi…

2023

CoLaDa: A Collaborative Label Denoising Framework for Cross-lingual Named Entity Recognition

ACL 2023long

Cross-lingual named entity recognition (NER) aims to train an NER system that generalizes well to a target language by leveraging labeled data in a given source language. Previous work alleviates the data scarcity problem by translating source-language labeled data or performing knowledge distillati…

2023

Disentangling Reasoning Capabilities from Language Models with Compositional Reasoning Transformers

ACL 2023findings

This paper presents ReasonFormer, a unified reasoning framework for mirroring the modular and compositional reasoning process of humans in complex decision-making. Inspired by dual-process theory in cognitive science, the representation module (automatic thinking) and reasoning modules (controlled t…

2023

Improving Low-resource Question Answering by Augmenting Question Information

EMNLP 2023short findings

In the era of large models, low-resource question-answering tasks lag, emphasizing the importance of data augmentation - a key research avenue in natural language processing. The main challenges include leveraging the large model's internal knowledge for data augmentation, determining which QA data…

Cited by 0SourceScholar
2023

Improving Translation Quality Estimation with Bias Mitigation

ACL 2023long

State-of-the-art translation Quality Estimation (QE) models are proven to be biased. More specifically, they over-rely on monolingual features while ignoring the bilingual semantic alignment. In this work, we propose a novel method to mitigate the bias of the QE model and improve estimation performa…

Cited by 5SourcePDFScholar
2023

Iterative Nearest Neighbour Machine Translation for Unsupervised Domain Adaptation

ACL 2023findings

Unsupervised domain adaptation of machine translation, which adapts a pre-trained translation model to a specific domain without in-domain parallel data, has drawn extensive attention in recent years. However, most existing methods focus on the fine-tuning based techniques, which is non-extensible.…

2022

CLMLF:A Contrastive Learning and Multi-Layer Fusion Method for Multimodal Sentiment Detection

NAACL 2022findings

Compared with unimodal data, multimodal data can provide more features to help the model analyze the sentiment of data. Previous research works rarely consider token-level feature fusion, and few works explore learning the common features related to sentiment in multimodal data to help the model fus…

2022

Cross-lingual Feature Extraction from Monolingual Corpora for Low-resource Unsupervised Bilingual Lexicon Induction

COLING 2022main

Despite their progress in high-resource language settings, unsupervised bilingual lexicon induction (UBLI) models often fail on corpora with low-resource distant language pairs due to insufficient initialization. In this work, we propose a cross-lingual feature extraction (CFE) method to learn the c…

Cited by 10SourcePDFScholar
2022

Decomposed Meta-Learning for Few-Shot Named Entity Recognition

ACL 2022findings

Few-shot named entity recognition (NER) systems aim at recognizing novel-class named entities based on only a few labeled examples. In this paper, we present a decomposed meta-learning approach which addresses the problem of few-shot NER by sequentially tackling few-shot span detection and few-shot…

2022

Document-Level Relation Extraction with Sentences Importance Estimation and Focusing

NAACL 2022long

Document-level relation extraction (DocRE) aims to determine the relation between two entities from a document of multiple sentences. Recent studies typically represent the entire document by sequence- or graph-based models to predict the relations of all entity pairs. However, we find that such a m…

2022

Jointly Learning Guidance Induction and Faithful Summary Generation via Conditional Variational Autoencoders

NAACL 2022findings

Abstractive summarization can generate high quality results with the development of the neural network. However, generating factual consistency summaries is a challenging task for abstractive summarization. Recent studies extract the additional information with off-the-shelf tools from the source do…

2022

MuGER2: Multi-Granularity Evidence Retrieval and Reasoning for Hybrid Question Answering

EMNLP 2022finding

Hybrid question answering (HQA) aims to answer questions over heterogeneous data, including tables and passages linked to table cells. The heterogeneous data can provide different granularity evidence to HQA models, e.t., column, row, cell, and link. Conventional HQA models usually retrieve coarse-…

2022

OPERA: Operation-Pivoted Discrete Reasoning over Text

NAACL 2022long

Machine reading comprehension (MRC) that requires discrete reasoning involving symbolic operations, e.g., addition, sorting, and counting, is a challenging task. According to this nature, semantic parsing-based methods predict interpretable but complex logical forms. However, logical form generation…

2022

On the Effectiveness of Sentence Encoding for Intent Detection Meta-Learning

NAACL 2022long

Recent studies on few-shot intent detection have attempted to formulate the task as a meta-learning problem, where a meta-learning model is trained with a certain capability to quickly adapt to newly specified few-shot tasks with potentially unseen intent categories. Prototypical networks have been…

2022

Responsive Listening Head Generation: A Benchmark Dataset and Baseline

ECCV 2022poster

"We present a new listening head generation benchmark, for synthesizing responsive feedbacks of a listener (e.g., nod, smile) during a face-to-face conversation. As the indispensable complement to talking heads generation, listening head generation has seldomly been studied in literature. Automatica…

Cited by 60SourcePDFScholar
2022

UniRPG: Unified Discrete Reasoning over Table and Text as Program Generation

EMNLP 2022main

Question answering requiring discrete reasoning, e.g., arithmetic computing, comparison, and counting, over knowledge is a challenging task.In this paper, we propose UniRPG, a semantic-parsing-based approach advanced in interpretability and scalability, to perform Unified discrete Reasoning over het…

2021

Issues with Entailment-based Zero-shot Text Classification

ACL 2021short

The general format of natural language inference (NLI) makes it tempting to be used for zero-shot text classification by casting any target label into a sentence of hypothesis and verifying whether or not it could be entailed by the input, aiming at generic classification applicable on any specified…

2021

Self-Training for Unsupervised Neural Machine Translation in Unbalanced Training Data Scenarios

NAACL 2021long

Unsupervised neural machine translation (UNMT) that relies solely on massive monolingual corpora has achieved remarkable results in several translation tasks. However, in real-world scenarios, massive monolingual corpora do not exist for some extremely low-resource languages such as Estonian, and UN…

Cited by 12SourcePDFScholar
2020

Learning to Decouple Relations: Few-Shot Relation Classification with Entity-Guided Attention and Confusion-Aware Training

COLING 2020main

This paper aims to enhance the few-shot relation classification especially for sentences that jointly describe multiple relations. Due to the fact that some relations usually keep high co-occurrence in the same context, previous few-shot relation classifiers struggle to distinguish them with few ann…

Cited by 49SourcePDFScholar
2020

Look-Into-Object: Self-Supervised Structure Modeling for Object Recognition

CVPR 2020poster

Most object recognition approaches predominantly focus on learning discriminative visual patterns, while overlooking the holistic object structure. Though important, structure modeling usually requires significant manual annotations and therefore is labor-intensive. In this paper, we propose to "loo…

Cited by 99PDFcodeScholar
2020

Robust Machine Reading Comprehension by Learning Soft labels

COLING 2020main

Neural models have achieved great success on the task of machine reading comprehension (MRC), which are typically trained on hard labels. We argue that hard labels limit the model capability on generalization due to the label sparseness problem. In this paper, we propose a robust training method for…

2020

Robust Unsupervised Neural Machine Translation with Adversarial Denoising Training

COLING 2020main

Unsupervised neural machine translation (UNMT) has recently attracted great interest in the machine translation community. The main advantage of the UNMT lies in its easy collection of required large training text sentences while with only a slightly worse performance than supervised neural machine…

2018

Deep Attention Neural Tensor Network for Visual Question Answering

ECCV 2018poster

Visual question answering (VQA) has drawn great attention in cross-modal learning problems, which enables a machine to answer a natural language question given a reference image. Significant progress has been made by learning rich embedding features from images and questions by bilinear models, whil…

Cited by 83SourcePDFScholar