Papers by Ziqiang Zhang

18 papers
Dynamic and Efficient Inference for Text Generation via BERT Family (2023.acl-long)

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Challenge: Existing methods to improve performance of pre-trained language models are limited due to large-scale parameters and the universal autoregressive decoding paradigm.
Approach: They propose a novel fine-tuning method which can make a single pre-trained model support Dynamic and Efficient infERence and achieve an adaptive trade-off between model performance and latency.
Outcome: The proposed method achieves higher BLEU scores than the strong autoregressive Transformer model on translation tasks with 3 12 times speedup and faster inference speed compared with the BART model on four GLGE benchmark tasks.
Can Diffusion Model Achieve Better Performance in Text Generation ? Bridging the Gap between Training and Inference ! (2023.findings-acl)

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Challenge: Existing models for text generation use a discrete data embedding module to map the data into the continuous space.
Approach: They propose two methods to bridge the gap between training and inference by mapping the discrete text into the continuous space.
Outcome: The proposed methods can achieve 100 200 speedup with better performance on 6 generation tasks.
Beyond Decoder-only: Large Language Models Can be Good Encoders for Machine Translation (2025.findings-acl)

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Challenge: Recent advances in machine translation have focused on a single pre-trained decoder . encoder-decoder architectures have received relatively little attention in NMT .
Approach: They propose a method that leverages LLMs as MT encoders and pairs them with lightweight decoders to develop universal translation models.
Outcome: The proposed method matches or surpasses baselines in terms of translation quality but achieves 75% reduction in memory footprint of the KV cache.
Re3Syn: A Dependency-Based Data Synthesis Framework for Long-Context Post-training (2025.acl-long)

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Challenge: Existing methods for constructing long-context data by concatenating short documents have overlooked a crucial characteristic of long-constituency data quality, semantic dependency.
Approach: They propose a framework called Retrieval, Dependency Recognition, and Reorder for data synthesis which leverages semantic similarity to retrieve relevant documents and form several batches.
Outcome: The proposed framework leverages semantic similarity to retrieve relevant documents and form several batches.
Act-Adaptive Margin: Dynamically Calibrating Reward Models for Subjective Ambiguity (2026.acl-long)

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Challenge: Existing approaches to reward modeling in reinforcement learning tasks are limited when dealing with ambiguous preferences.
Approach: They propose to use AAM to dynamically calibrate preference margins using the Bradley-Terry model's internal parameter knowledge to improve reward modeling in subjective tasks.
Outcome: The proposed approach improves reward modeling by dynamically calibrating preference margins using the model’s internal parameter knowledge.
Towards IP Intelligence: Benchmarking Large Language Models on Intellectual Property Knowledge and Practice (2026.findings-acl)

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Challenge: Existing datasets and benchmarks focus only on patents or cover limited aspects of the IP field, lacking alignment with real-world scenarios.
Approach: They propose a bilingual IP task taxonomy and a large-scale bilingual benchmark to evaluate LLMs in real-world IP practice.
Outcome: The proposed model achieves only 75.8% accuracy, indicating room for improvement . open-source IP and law-oriented models lag behind closed-source general-purpose models .
SpeechUT: Bridging Speech and Text with Hidden-Unit for Encoder-Decoder Based Speech-Text Pre-training (2022.emnlp-main)

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Challenge: Existing models for pre-training text and speech are based on unlabeled audio data.
Approach: They propose a unified-modal speech-unit-text pre-training model that connects speech encoders and text decoders with a shared unit encoder.
Outcome: The proposed model improves on automatic speech recognition and speech translation tasks and achieves state-of-the-art performance on both the LibriSpeech ASR and MuST-C ST tasks.
Natural-Language Policies to Executable Decisions: An Interpretable Large Language Model Framework (2026.acl-industry)

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Challenge: a production-grade pricing system for tourism is challenging due to unstructured nature of travel orders and ever-evolving pricing policies.
Approach: They propose a production-grade pricing system with a strict decision boundary . they propose to combine structured extraction and bounded policy/path selection with interpretable condition trees .
Outcome: The proposed system processed 3,960 orders in six months and reduced the order management team from 15-20 to 3 . the system reduced the per-order handling time from 10 minutes to 2 minutes.
The Bidirectional Process Reward Model (2026.acl-long)

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Challenge: Process reward models (PRMs) assign fine-grained scores to intermediate reasoning steps within a solution trajectory.
Approach: They propose a bidirectional evaluation paradigm that integrates a parallel evaluation stream alongside the L2R evaluation scheme and a gating mechanism to fuse the reward scores.
Outcome: The proposed model surpasses unidirectional baselines in multiple benchmarks, LLM objectives and sampling policies.
Bridge-Coder: Transferring Model Capabilities from High-Resource to Low-Resource Programming Language (2025.findings-acl)

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Challenge: Large Language Models (LLMs) excel at generating code for high-resource programming languages (HRPLs) however, they struggle significantly with low-resourced programming languages such as D, exacerbating the digital divide.
Approach: They propose a method to generate LRPL data using LLM's general knowledge, HRPL proficiency, and in-context learning capabilities.
Outcome: The proposed method improves on R, D, Racket, and Bash, while maintaining the same quality.
Interleaved Tool-Call Reasoning for Protein Function Understanding (2026.acl-long)

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Challenge: Recent advances in large language models have highlighted the effectiveness of chain-of-thought reasoning in symbolic domains such as mathematics and programming.
Approach: They propose a tool-augmented protein reasoning agent that unifies problem decomposition, tool invocation, and grounded answer generation.
Outcome: The proposed protein function understanding agent outperforms text-only reasoning models with an average performance improvement of 103%.
Can MLLMs Understand the Deep Implication Behind Chinese Images? (2025.acl-long)

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Challenge: MLLMs perform poorly on traditional culture images, indicating limitations in understanding high-level semantics and lacking a deep knowledge base of Chinese traditional culture.
Approach: They propose to use Chinese images to assess MLLMs' higher-order perception and understanding of Chinese visual content.
Outcome: The proposed model incorporates images that represent Chinese traditional culture, such as famous Chinese traditional paintings, to ensure the authenticity of the Chinese context.
KBioXLM: A Knowledge-anchored Biomedical Multilingual Pretrained Language Model (2023.findings-emnlp)

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Challenge: Existing models for multilingual biomedical training are monolingual, resulting in limited cross-lingual capability.
Approach: They propose a model that transforms a multilingual biomedical corpus into a biomedically domain using a knowledge-anchored approach.
Outcome: The proposed model outperforms monolingual and multilingual models in cross-lingual scenarios.
Marathon: A Race Through the Realm of Long Context with Large Language Models (2024.acl-long)

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Challenge: Existing long-context benchmarks do not accurately evaluate large language models’ comprehension and reasoning abilities in extended texts.
Approach: They propose a new evaluation benchmark that adopts a multiple-choice question format and uses a multi-choke question format to assess the comprehension and reasoning skills of large language models.
Outcome: The proposed benchmark provides a rapid, precise, and unbiased appraisal of the long-context comprehension skills of large language models.
MDCSpell: A Multi-task Detector-Corrector Framework for Chinese Spelling Correction (2022.findings-acl)

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Challenge: Chinese Spelling Correction (CSC) is a task to detect and correct misspelled characters in Chinese texts.
Approach: They propose a general detector-corrector multi-task framework which exploits the visual and phonological features of the misspelled characters and minimizes their misleading impact on the context.
Outcome: The proposed framework outperforms the state-of-the-art methods on Chinese Spelling Correction tasks.
STORYTELLER: An Enhanced Plot-Planning Framework for Coherent and Cohesive Story Generation (2025.findings-acl)

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Challenge: Existing methods for storytelling lack coherence and consistency, compromising the overall storytelling experience.
Approach: They propose a novel approach that improves the coherence and consistency of automatically generated stories by managing plot nodes and enabling dynamic interactions between different parts of the story.
Outcome: The proposed approach outperforms existing methods in 84.33% of the trials.
Ruler: A Model-Agnostic Method to Control Generated Length for Large Language Models (2024.findings-emnlp)

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Challenge: Large language models struggle to meet user’s needs when required to generate responses of a specific length due to their inherent difficulty in accurately perceiving numerical constraints.
Approach: They propose a Target Length Generation Task and propose RULER, a model-agnostic approach that controls generated length for large language models.
Outcome: The proposed model-agnostic approach improves instruction-following ability of large language models under length-constrained instructions and can generate appropriate MLT when length constraints are not explicitly provided.
COIG-CQIA: Quality is All You Need for Chinese Instruction Fine-tuning (2025.findings-naacl)

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Challenge: Existing datasets for Chinese instruction tuning are not well-aligned with Chinese users’ interaction patterns.
Approach: They propose to use Chinese instruction tuning datasets to improve instruction fine-tuning for Chinese users.
Outcome: The proposed dataset shows that Chinese models achieve competitive performance in diverse benchmarks.

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