Papers by Sinong Wang

17 papers
SMARTAVE: Structured Multimodal Transformer for Product Attribute Value Extraction (2022.findings-emnlp)

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Challenge: Existing methods for product attribute value extraction are noisy and incomplete with missing values for most retailers.
Approach: They propose a Structure Mltimodal trAnsformeR for producT Attribute Value Extraction which jointly encodes the structured product information from multiple modalities.
Outcome: The proposed method outperforms state-of-the-art methods on two multimodal product datasets.
LM-Infinite: Zero-Shot Extreme Length Generalization for Large Language Models (2024.naacl-long)

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Challenge: Currently, large language models (LLMs) train on short text segments due to the computational overhead quadratic in the input lengths of their Transformer architectures.
Approach: They propose a method that allows LLMs pre-trained with 2K or 4K-long segments to generalize to up to 200M length inputs while retaining perplexity.
Outcome: The proposed method achieves 2.7 decoding speed up and 7.5 memory saving over the original model.
Blockwise Self-Attention for Long Document Understanding (2020.findings-emnlp)

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Challenge: Recent advances in pre-training and fine-tuning methods have drastically reshaped the landscape of natural language processing research.
Approach: They propose a lightweight BERT model that introduces sparse block structures into the attention matrix to reduce memory consumption and training/inference time.
Outcome: The proposed model uses 18.7-36.1% less memory and 12.0-25.1% more time to learn compared to an advanced BERT-based model, RoBERTa.
Learning Auxiliary Tasks Improves Reference-Free Hallucination Detection in Open-Domain Long-Form Generation (2025.acl-short)

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Challenge: Existing methods for detecting hallucination in long-form tasks focus on limited domains or rely heavily on external fact-checking tools, which may not always be available.
Approach: They propose a new paradigm that augments fine-tuning with an auxiliary task for the model to jointly learn with the main task of hallucination detection.
Outcome: The proposed method outperforms existing methods for detecting hallucination in open-domain long-form generation and is more accurate than random guessing.
Learning Easily Updated General Purpose Text Representations with Adaptable Task-Specific Prefix (2023.findings-emnlp)

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Challenge: a large pre-trained language model can cause computational burdens in inference time due to multiple forward passes.
Approach: They propose a method to learn fixed text representations with source tasks . they learn a task-specific prefix for each source task independently and combine them .
Outcome: The proposed method improves generalizability of representations with source tasks.
MUSTIE: Multimodal Structural Transformer for Web Information Extraction (2023.acl-long)

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Challenge: Recent sequential modeling approaches focus on extracting information from textual sources while ignoring rich information from other modalities such as image and web layout.
Approach: They propose a novel MUltimodal Structural Transformer that integrates multiple modalities for web information extraction.
Outcome: The proposed model outperforms existing methods on WebSRC and Common Crawl benchmarks.
Sparse Distillation: Speeding Up Text Classification by Using Bigger Student Models (2022.naacl-main)

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Challenge: Existing methods to reduce inference cost by distilling transformer models into lightweight student models are limited for high-volume use cases.
Approach: They propose to distill state-of-the-art transformer models into lightweight student models to reduce computation cost at inference time.
Outcome: The proposed pipeline achieves up to 600x speed-up on GPUs and CPUs on six single-sentence text classification tasks and in domain generalization settings.
MixPAVE: Mix-Prompt Tuning for Few-shot Product Attribute Value Extraction (2023.findings-acl)

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Challenge: Existing methods for product attribute value extraction focus on extracting values for a set of known attributes with sufficient training data.
Approach: They propose a prompt tuning approach to extract attributes from product information using mixed prompts.
Outcome: The proposed approach improves on two product benchmarks and shows parameter-efficient training and avoids model overfitting.
Improving Model Factuality with Fine-grained Critique-based Evaluator (2025.acl-long)

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Challenge: Factuality evaluation aims to detect factual errors produced by language models and guide the development of more factual models.
Approach: They propose a framework that leverages FenCE to improve the factuality of LM generators by constructing training data.
Outcome: The proposed framework improves the factuality of LM generators by enhancing their training data.
APrompt: Attention Prompt Tuning for Efficient Adaptation of Pre-trained Language Models (2023.emnlp-main)

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Challenge: Existing prompt tuning methods only introduce prompts at the input layer, limiting performance and leaving large room for improvement.
Approach: They propose a method that involves tuning a small set of soft prompts for pre-trained language models.
Outcome: The proposed method outperforms state-of-the-art methods with pre-trained models on the SuperGLUE benchmark.
On the Influence of Masking Policies in Intermediate Pre-training (2021.emnlp-main)

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Challenge: Existing studies show that inserting an intermediate pre-training stage improves performance of masked language models.
Approach: They propose methods to automate the discovery of optimal masking policies via direct supervision or meta-learning.
Outcome: The proposed method outperforms the heuristic of masking named entities on TriviaQA and can be generalizable beyond that task.
To Pretrain or Not to Pretrain: Examining the Benefits of Pretrainng on Resource Rich Tasks (2020.acl-main)

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Challenge: Existing studies on pretraining NLP models with variants of Masked Language Model (MLM) objectives have shown that the number of training samples used in the downstream task is limited.
Approach: They propose to use MLM objectives to pretrain NLP models with variants of Masked Language Model (MLM) objectives to improve accuracy on downstream tasks.
Outcome: The proposed model can reach a diminishing return point as the supervised data size increases significantly.
Effective Long-Context Scaling of Foundation Models (2024.naacl-long)

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Challenge: Large language models (LLMs) are rapidly deployed and continue to evolve through scaling.
Approach: They propose a method to train strong long-context LLMs that are capable of utilizing massive context windows of up to 32,000 tokens.
Outcome: The proposed model can surpass gpt-3.5-turbo-16k's overall performance on long-context benchmarks with a cost-effective instruction tuning procedure that is free of expensive annotations.
Detection, Disambiguation, Re-ranking: Autoregressive Entity Linking as a Multi-Task Problem (2022.findings-acl)

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Challenge: Existing methods for entity linking do not use a knowledge base or candidate sets.
Approach: They propose an autoregressive entity linking model that is trained with two auxiliary tasks and learns to re-rank generated samples at inference time.
Outcome: The proposed model improves on two biomedical datasets and a news domain dataset without the use of a knowledge base or candidate sets.
Learning to Generate Question by Asking Question: A Primal-Dual Approach with Uncommon Word Generation (2022.emnlp-main)

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Challenge: Existing automatic question generation methods focus on encoding passage and answer to generate question.
Approach: They propose an automatic question generation approach which integrates question generation with its dual problem, question answering, into a unified primal-dual framework.
Outcome: The proposed approach outperforms existing methods on SQuAD and HotpotQA benchmarks.
IDPG: An Instance-Dependent Prompt Generation Method (2022.naacl-main)

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Challenge: Existing prompt tuning methods use a fixed prompt in each input instance during the model training stage.
Approach: They propose a conditional prompt generation method to generate prompts for each input instance.
Outcome: The proposed method outperforms other prompt tuning methods while tuning fewer parameters.
On Unifying Misinformation Detection (2021.naacl-main)

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Challenge: On any given day, 2.5 quintillion bytes of information are created on the Internet, a figure that is only expected to increase in the coming years.
Approach: They propose a general-purpose misinformation model that jointly models multiple domains of misinformation with a single, unified setup.
Outcome: The proposed model is useful for few-shot learning of unseen misinformation tasks/datasets and generalizability to unseense events.

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