Papers by Wenting Zhao

20 papers
LLMs Assist NLP Researchers: Critique Paper (Meta-)Reviewing (2024.emnlp-main)

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Challenge: a comparative analysis of paper (meta-)reviews by large language models (LLMs) aims to identify and distinguish LLMs from human activities .
Approach: They present a comparative analysis to identify and distinguish LLM activities from human activities.
Outcome: The proposed analysis aims to improve recognition of instances when someone implicitly uses LLMs for reviewing activities.
Challenges in Trustworthy Human Evaluation of Chatbots (2025.findings-naacl)

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Challenge: apathetic or adversarial annotators can corrupt the reliability of open leaderboard rankings . human annotation is widely accepted as the gold standard for open-ended text generation tasks .
Approach: They show that bad annotations can corrupt the reliability of open leaderboard rankings . they argue that human annotation is widely accepted as the gold standard .
Outcome: The proposed algorithm can corrupt the reliability of open leaderboard rankings by up to 5 places.
Hop, Union, Generate: Explainable Multi-hop Reasoning without Rationale Supervision (2023.emnlp-main)

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Challenge: Existing methods rely on supervision for both answers and rationales, but they have limited capacities in modeling interactions between sentences, let alone reasoning across multiple documents.
Approach: They propose a principled, probabilistic approach for training explainable multi-hop question answering systems without rationale supervision.
Outcome: The proposed method is more accurate at selecting rationales than previous methods while maintaining similar accuracy in predicting answers.
Enriching Non-Autoregressive Transformer with Syntactic and Semantic Structures for Neural Machine Translation (2021.eacl-main)

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Challenge: Existing non-autoregressive models have boosted the efficiency of neural machine translation, but their performance is significantly worse than that of autoregressive counterparts.
Approach: They propose to incorporate syntactic and semantic structures among natural languages into a non-autoregressive Transformer for the task of neural machine translation.
Outcome: The proposed model achieves faster speed and keeps translation quality compared with other models.
DIVKNOWQA: Assessing the Reasoning Ability of LLMs via Open-Domain Question Answering over Knowledge Base and Text (2024.findings-naacl)

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Challenge: Retrievalaugmented LLMs have been used to ground LLM in external knowledge . a gap exists in the current landscape regarding the effectiveness of grounding LLM on heterogeneous knowledge sources.
Approach: They propose a model that uses symbolic language to generate symbolic queries . they use a dataset that is generated using predefined reasoning chains and human annotation .
Outcome: The proposed model outperforms previous approaches by a significant margin in QA tasks over text.
kNN-ICL: Compositional Task-Oriented Parsing Generalization with Nearest Neighbor In-Context Learning (2024.naacl-long)

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Challenge: Recent advances in task-oriented parsing involve formulating the task as a sequence-to-sequence problem, relying on a wealth of labeled data.
Approach: They propose a task-oriented parsing framework that integrates nearest-neighbor learning with a nearest-nearest approach.
Outcome: The proposed model can be used to synthesize computer programs based on a natural-language prompt without additional data or specialized prompts.
MultiFileTest: A Multi-File-Level LLM Unit Test Generation Benchmark and Impact of Error Fixing Mechanisms (2026.findings-acl)

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Challenge: Existing evaluation benchmarks for LLM unit test generation focus on function-level code rather than on more practical, challenging multi-file codebases.
Approach: They propose a multi-file-level benchmark for unit test generation covering Python, Java, and JavaScript.
Outcome: The proposed benchmarks show that most LLMs exhibit moderate performance on MultiFileTest, highlighting the benchmark’s inherent difficulty.
Complex Reasoning in Natural Language (2023.acl-tutorials)

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Challenge: Recent research shows that pretrained language models are often brittle for complex reasoning tasks.
Approach: They propose to use pre-trained language models to teach machines to reason over texts . they will review recent promising approaches to tackling complex reasoning tasks .
Outcome: This tutorial reviews promising approaches to complex reasoning tasks . it reviews the methods that can be used to augment models with robustness .
I Could’ve Asked That: Reformulating Unanswerable Questions (2024.emnlp-main)

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Challenge: Existing large language models do not assist users in reformulating unanswerable questions . a recent study found that the models failed to reformulate questions based on assumptions that conflict with or cannot be verified with the information available in documents.
Approach: They evaluate open-source and proprietary LLMs on couldAsk to evaluate their performance . they found that GPT-4 and Llama2-7B successfully reformulate questions only 26% and 12% of the time .
Outcome: The proposed model successfully reformulates questions only 26% and 12% of the time . the proposed model is not able to reformulate questions, but it can be improved .
Towards LLM Agents for Earth Observation (2026.findings-acl)

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Challenge: specialized automated systems for specific earth observation tasks lack flexibility for general-purpose, customized queries.
Approach: They propose a coding benchmark of 408 yes/no questions from NASA Earth Observatory articles . they analyze the impact of using JavaScript API versus Python and the effect of providing documentation .
Outcome: The proposed frameworks reduce errors by 60%, but are only marginally above random chance.
WildVis: Open Source Visualizer for Million-Scale Chat Logs in the Wild (2024.emnlp-demo)

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Challenge: Currently, the volume and complexity of chat logs makes it difficult to analyze individual conversations.
Approach: They propose a tool that enables fast, versatile, and large-scale conversation analysis by combining search and visualization capabilities with a list of criteria.
Outcome: The proposed tool can be extended to handle millions of chat logs and other datasets.
Sentiment Word Aware Multimodal Refinement for Multimodal Sentiment Analysis with ASR Errors (2022.findings-acl)

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Challenge: Existing models for multimodal sentiment analysis are limited in their capacity to be deployed in the real world.
Approach: They propose a model that can dynamically refine erroneous sentiment words by leveraging multimodal sentiment clues.
Outcome: The proposed model surpasses the state-of-the-art models on three datasets.
Compositional Task-Oriented Parsing as Abstractive Question Answering (2022.naacl-main)

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Challenge: Task-oriented parsing (TOP) aims to convert natural language into machine-readable representations of specific tasks, such as setting an alarm.
Approach: They propose to reduce TOP to abstractive question answering by using canonical paraphrasing to generate linearized parse trees.
Outcome: The proposed technique outperforms state-of-the-art methods in full-data settings while achieving dramatic improvements in few-shot settings.
Attend, Memorize and Generate: Towards Faithful Table-to-Text Generation in Few Shots (2021.findings-emnlp)

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Challenge: Few-shot table-to-text generation is a task of composing fluent and faithful sentences to convey table content using limited data.
Approach: They propose a novel approach to generate faithful table-to-text sentences using limited data . they aim to exploit table structure and natural linguistic information to generate accurate sentences .
Outcome: The proposed approach generates higher qualified sentences when compared with state-of-the-art models on humans, songs, and books.
UNcommonsense Reasoning: Abductive Reasoning about Uncommon Situations (2024.naacl-long)

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Challenge: Existing work evaluating commonsense reasoning focuses on making inferences about common, everyday situations.
Approach: They propose to use an English language corpus to investigate commonsense reasoning . they characterize performance differences between human explainers and best-performing large language models .
Outcome: The proposed method reduces the loss rate of human-written explanations on commonsense reasoning compared with the vanilla supervised fine-tuning approach .
Great Memory, Shallow Reasoning: Limits of kNN-LMs (2025.naacl-short)

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Challenge: Existing models trained on poor quality data have shown strong performance in language modeling and some downstream benchmarks.
Approach: They evaluate kNN-LMs on a diverse set of tasks and evaluate their performance.
Outcome: The proposed extension could improve on a variety of tasks, but it fails to perform on reasoning tasks that require integrating multiple pieces of information.
Enhancing Multiple-choice Machine Reading Comprehension by Punishing Illogical Interpretations (2021.emnlp-main)

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Challenge: Multiple-choice MRC is one of the most studied tasks in MRC due to the convenience of evaluation and the flexibility of answer format.
Approach: They propose to use multiple-choice MRC to explain a trained model and reveal how it arrives at the prediction by punishing illogical attributions.
Outcome: The proposed method improves model performance without external information and model structure change without any external information.
Abductive Commonsense Reasoning Exploiting Mutually Exclusive Explanations (2023.acl-long)

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Challenge: Existing approaches for abductive reasoning in natural language processing rely on manual supervision.
Approach: They propose an approach for abductive commonsense reasoning that exploits the fact that only a subset of explanations is correct for a given context.
Outcome: The proposed approach outperforms or is comparable to knowledge-augmented zero-shot methods on a diverse set of abductive reasoning datasets.
In Search of the Long-Tail: Systematic Generation of Long-Tail Inferential Knowledge via Logical Rule Guided Search (2024.emnlp-main)

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Challenge: Logic-Induced-Knowledge-Search (LINK) is a framework for generating factually-correct yet long-tail inferential knowledge.
Approach: They introduce a framework to obtain factually-correct yet long-tail inferential statements using variable-wise prompting grounded on symbolic rules.
Outcome: The proposed framework is able to obtain factually-correct yet long-tail inferential statements while ensuring factual correctness.
Symbolic Planning and Code Generation for Grounded Dialogue (2023.emnlp-main)

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Challenge: Large language models excel at processing and generating text and code, but lack a grounded task-oriented dialogue system that can handle grounding.
Approach: They propose a modular and interpretable grounded dialogue system that integrates a reader and planner to convert partner utterances into executable code and a symbolic planner to determine the next appropriate response.
Outcome: The proposed system outperforms the existing state-of-the-art on a one-common dialogue task and improves task success in human evaluations from 56% to 69% in the most challenging setting.

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