Papers by Hai Zhou

19 papers
CART: A Generative Cross-Modal Retrieval Framework With Coarse-To-Fine Semantic Modeling (2025.acl-long)

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Challenge: Cross-modal retrieval tasks are used to retrieve data from one modality or another based on a query from another modality.
Approach: They propose a generative cross-modal retrieval framework based on coarse-to-fine semantic modeling . they propose combining K-Means and RQ-VAE to discretize multimodal data into token sequences that support autoregressive generation.
Outcome: The proposed framework achieves excellent performance and efficiency in multimodal retrieval tasks.
AdDriftBench: A Benchmark for Detecting Data Drift and Label Drift in Short Video Advertising (2025.findings-emnlp)

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Challenge: Short video advertising scenarios present unique challenges due to data drift (DD) and label drift (LD).
Approach: They propose to use data drift and label drift to evaluate models under rapidly shifting content distributions and labeling scenarios to assess their generalization capabilities.
Outcome: The proposed model performs moderately in short video advertising contexts, particularly in handling fine-grained semantics and adapting to shifting instructions.
Language-Codec: Bridging Discrete Codec Representations and Speech Language Models (2025.acl-long)

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Challenge: Existing gaps between discrete acoustic codecs and downstream speech language models . initial channel of codebooks contains excessive information, making it difficult to generate tokens from weakly supervised signals such as text.
Approach: They propose a discrete acoustic codec for generating acustic tokens from weakly supervised signals.
Outcome: The proposed language-codec outperforms competing audio compression algorithms and validates on downstream speech language models.
Instance Regularization for Discriminative Language Model Pre-training (2022.emnlp-main)

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Challenge: Existing studies have optimized independent strategies of ennoising or denosing . Existing methods treat training instances equally throughout the training process .
Approach: They propose to use ennoising and denoising to train discriminative pre-trained language models . they propose to model the complexity of restoring the original sentences from corrupted ones .
Outcome: Experimental results show that the proposed method improves pre-training efficiency, effectiveness, and robustness.
Towards End-to-End Open Conversational Machine Reading (2023.findings-eacl)

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Challenge: Existing approaches to the problem of open-retrieval conversational machine reading (OR-CMR) use two separate modules to approach the problem's two successive sub-tasks.
Approach: They propose to model OR-CMR as a unified text-to-text task in a fully end-to end style and propose to use a text-based approach to solve the problem.
Outcome: Experiments on the ShARC and OR-ShARC dataset show that the proposed framework can generalize to different backbone models.
Dissecting Human and LLM Preferences (2024.acl-long)

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Challenge: a recent study shows that human and Large Language Model preferences are important for model fine-tuning and evaluation.
Approach: They dissect the preferences of human and 32 different Large Language Models to understand their quantitative composition.
Outcome: The proposed model is compared with 32 different large language models using real-world user-model conversations.
Investigating Transfer Learning in Multilingual Pre-trained Language Models through Chinese Natural Language Inference (2021.findings-acl)

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Challenge: Multilingual transformers have been shown to have remarkable transfer skills in zero-shot settings.
Approach: They investigate cross-lingual transfer abilities of XLM-R for Chinese and English natural language inference using a large scale Chinese dataset.
Outcome: The proposed model trains on Chinese and English natural language inference datasets.
Overcoming both Domain Shift and Label Shift for Referring Video Segmentation (2025.findings-naacl)

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Challenge: Existing methods to improve the robustness of open-set domain generalization can only recognize seen objects and mark all unseen objects as “unknown” categories .
Approach: They propose a method to make the model maintain good segmentation ability for unknown objects . they propose CLIP-based Reasoning Prompt which can combine text and visual prompts .
Outcome: The proposed method can bridge the gap caused by label shift by combining text and visual prompts to improve text-object matching ability.
Head-Driven Phrase Structure Grammar Parsing on Penn Treebank (P19-1)

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Challenge: Head-driven phrase structure grammars have a uniform formalism representing rich contextual syntactic and even semantic meanings.
Approach: They propose to integrate constituent and dependency formal representations into head-driven phrase structure.
Outcome: The proposed parser achieves state-of-the-art performance on Penn Treebank and Chinese Penn TreeBank.
CLUE: A Chinese Language Understanding Evaluation Benchmark (2020.coling-main)

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Challenge: Existing language evaluation benchmarks for English are limited to English . lack of such benchmarks makes it difficult to replicate success in other languages .
Approach: They introduce a large-scale Chinese language understanding evaluation benchmark . the benchmark uses a set of current state-of-the-art pre-trained Chinese models .
Outcome: The first large-scale Chinese Language Understanding Evaluation (CLUE) benchmark is released . the benchmark evaluates models across a wide range of tasks on original Chinese text . existing language evaluation benchmarks are mostly limited to English .
Remember Me, Refine Me: A Dynamic Procedural Memory Framework for Experience-Driven Agent Evolution (2026.findings-acl)

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Challenge: Existing frameworks treat memory as a static append-only archive . Existing systems focus on passive accumulation, resulting in a 'passive accumulation' of memory.
Approach: They propose a framework for experience-driven agent evolution that integrates procedural memory with contextual information to create a high-quality experience pool.
Outcome: Experiments on BFCL-V3 and AppWorld show that ReMe outperforms memoryless Qwen3-8B.
Sign2Vis: Automated Data Visualization from Sign Language (2025.findings-acl)

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Challenge: Existing methods to translate natural language descriptions into visualization queries focus on spoken languages, not sign languages.
Approach: They propose a sign language interface that enables the DHH community to engage more fully with data analysis.
Outcome: The proposed interface can be used by the deaf and hard-of-hearing community.
Label-Free Distant Supervision for Relation Extraction via Knowledge Graph Embedding (D18-1)

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Challenge: Existing methods to generate large scale labeled data for relation extraction produce noisy relation labels when there are multiple relationships between entities.
Approach: They propose a method which assumes that a pair of entities appears in a Knowledge Graph and trains a relation classifier.
Outcome: The proposed method performs well in the current distant supervision dataset.
Enhancing Multimodal Unified Representations for Cross Modal Generalization (2025.findings-acl)

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Challenge: Existing studies on discrete unified representations overlook important distinctions between different dimensions of features.
Approach: They propose to use a codebook to optimize unified representations from pretraining and fine- and coarse-grained disentangling to optimize the representations.
Outcome: The proposed methods improve the interpretability of multimodal unified representations . they use training-free optimization of codebook and fine and coarse cross-modal disentangling .
LIMIT-BERT : Linguistics Informed Multi-Task BERT (2020.findings-emnlp)

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Challenge: Existing language models are usually trained on large amounts of unlabeled text data.
Approach: They propose a multi-task language representations learning framework for multi-linguistics tasks by Multi-Task Learning.
Outcome: The proposed model outperforms the baseline Whole Word Masking BERT on both dependency and constituent syntactic/semantic parsing, GLUE benchmark, and SNLI task.
ControlSpeech: Towards Simultaneous and Independent Zero-shot Speaker Cloning and Zero-shot Language Style Control (2025.acl-long)

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Challenge: Prior zero-shot TTS models only mimic the speaker’s voice without further control and adjustment capabilities while prior controllable TTS systems cannot perform speaker-specific voice generation.
Approach: They propose a style control module that captures codec representations corresponding to timbre, content, and style in a discrete decoupling codec space.
Outcome: The proposed system can fully clone the speaker's voice and perform speech-specific adjustment and control functions.
RecBase: Generative Foundation Model Pretraining for Zero-Shot Recommendation (2025.emnlp-main)

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Challenge: Existing methods for addressing item-level user interests are lacking in cross-domain generalization . RecBase model is domain-agnostic and can be used to enhance recommender systems' effectiveness .
Approach: They propose a domain-agnostic foundational model pretrained with a recommendation-oriented objective that leverages a large-scale, heterogeneous, cross-domain corpus with unified textual representations and feature mappings to enhance cross- domain generalization.
Outcome: The proposed model matches or surpasses baselines in zero-shot and cross-domain recommendation tasks on eight real-world datasets.
BabyBabelLM: A Multilingual Benchmark of Developmentally Plausible Training Data (2026.eacl-long)

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Challenge: prevailing trend in language modeling research is to prioritize scaling, authors say . from infancy to maturity, English learners acquire language through exposure to less than 100M words .
Approach: They propose a multilingual collection of datasets modeling the language a person observes from birth until they acquire a native language.
Outcome: The proposed models outperform models trained on a fixed, developmentally plausible English corpus on various benchmarks.
Parsing All: Syntax and Semantics, Dependencies and Spans (2020.findings-emnlp)

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Challenge: Syntactic and semantic structures are key linguistic contextual clues, but few studies have explored how they can be used to improve syntactical parsing.
Approach: They propose a syntactic and semantic parsing model which integrates syntaktic information in the encoder of neural network and benefits from two representation formalisms in a uniform way.
Outcome: The proposed model achieves state-of-the-art or competitive results on both span and dependency representations and on Penn Treebank.

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