Papers by James Zhang

40 papers
NatCS: Eliciting Natural Customer Support Dialogues (2023.findings-acl)

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Challenge: Existing task-oriented dialogue datasets do not reflect the expected characteristics of real customer support conversations.
Approach: They propose to collect real customer service conversations from real conversations . they show that dialogue act annotations provide more effective training data .
Outcome: The proposed approach is more representative of real human-to-human conversations compared to existing dialogue datasets . the proposed approach can be used to facilitate open research in natural dialog systems .
Estimating Privacy Leakage of Augmented Contextual Knowledge in Language Models (2025.acl-long)

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Challenge: Prior work has shown that privacy leakage of parametric knowledge often occurs from memorized pre-training data.
Approach: They propose a metric that builds on differential privacy to estimate the privacy leakage of contextual knowledge during decoding by comparing parametric and contextual knowledge.
Outcome: The proposed method overestimates the privacy leakage of parametric knowledge while separating parametric and contextual knowledge.
SOUL: Unlocking the Power of Second-Order Optimization for LLM Unlearning (2024.emnlp-main)

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Challenge: Large Language Models (LLMs) have highlighted the need for effective unlearning mechanisms to comply with data regulations and ethical AI practices.
Approach: They propose a second-order optimization-based LLM unlearning framework which extends the static, one-shot model update using influence unlearning to a dynamic, iterative unlearning process.
Outcome: The proposed framework outperforms first-order methods across unlearning tasks, models, and metrics.
FOLIO: Natural Language Reasoning with First-Order Logic (2024.emnlp-main)

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Challenge: Existing benchmarks for logical reasoning in large language models lack language naturalness or limited complexity.
Approach: They propose to use first-order logic annotations to evaluate logical reasoning capabilities of large language models.
Outcome: The proposed dataset evaluates the FOL reasoning ability of supervised fine-tuning on medium-sized language models.
Platforms for Non-speakers Annotating Names in Any Language (P18-4)

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Challenge: Traditionally, native speakers of a language have been asked to annotate a corpus in that language.
Approach: They propose two annotation platforms that allow an English speaker to annotate names for any language without knowing the language.
Outcome: The proposed annotations achieved state-of-the-art performance on two surprise languages and ten languages at TAC-KBP EDL2017.
A Survey on LLMs for Story Generation (2025.findings-emnlp)

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Challenge: Methods for story generation with Large Language Models (LLMs) have come into the spotlight recently.
Approach: They propose a novel taxonomy of LLMs for story generation consisting of two major paradigms: independent story generation by an LLM, and author-assistance for story creation .
Outcome: The proposed taxonomy compares existing work on the topic with those of novel author-assistance models.
Adaptive Query Rewriting: Aligning Rewriters through Marginal Probability of Conversational Answers (2024.emnlp-main)

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Challenge: Existing methods to incorporate retriever’s preference during the training of query rewriting models rely on extensive annotations such as in-domain rewrites and/or relevant passage labels, limiting their generalization and adaptation capabilities.
Approach: They propose a framework for training query rewriting models with limited rewrite annotations from seed datasets and completely no passage label.
Outcome: The proposed approach decontexualizes conversational queries into self-contained questions suitable for off-the-shelf retrievers.
Reasoning or Knowledge: Stratified Evaluation of Biomedical LLMs (2026.eacl-long)

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Challenge: Medical reasoning in large language models is a complex cognitive process through which clinicians interpret patient data and make diagnostic and therapeutic decisions.
Approach: They propose an evaluation framework that disentangles knowledge recall from reasoning by training a PubMedBERT-based classifier and applying it to 11 widely used biomedical QA benchmarks.
Outcome: The proposed evaluation framework disentangles knowledge recall from reasoning by training a PubMedBERT-based classifier and applying it to 11 widely used biomedical QA benchmarks.
Werewolf Among Us: Multimodal Resources for Modeling Persuasion Behaviors in Social Deduction Games (2023.findings-acl)

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Challenge: Existing studies on persuasive behavior modeling focus on textual dialogues . a multimodal dataset is available for persuasion modeling .
Approach: They propose a multimodal dataset for modeling persuasive behaviors using visual signals.
Outcome: The proposed dataset includes 199 dialogue transcriptions and videos captured in a multi-player social deduction game setting and 26,647 utterance level annotations of persuasion strategy and game level annotation of deduction game outcomes.
Pre-training Intent-Aware Encoders for Zero- and Few-Shot Intent Classification (2023.emnlp-main)

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Challenge: Existing methods for IC training do not provide sufficient examples for each intent . a novel pre-training method is proposed to provide a better understanding of intents .
Approach: They propose a method that uses contrastive learning with intent psuedo-labels to produce embeddings that are well-suited for IC tasks.
Outcome: The proposed method achieves 5.4% and 4.0% higher accuracy than the current state-of-the-art method on four IC datasets.
Search Augmented Instruction Learning (2023.findings-emnlp)

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Challenge: Large language models (LLMs) have been significantly improved by instruction fine-tuning, but still lack transparency and the ability to utilize up-to-date knowledge and information.
Approach: They propose a search-augmented instruction learning model which grounds the language generation and instruction following abilities on complex search results generated by in-house and external search engines.
Outcome: The proposed model outperforms plain LLMs on zero-shot language tasks and can generate both natural and programming languages following natural language guidance and requests.
A Large Scale Speech Sentiment Corpus (2020.lrec-1)

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Challenge: Existing corpus for sentiment analysis uses text inputs, but voice inputs are becoming more important as smart assistants and mobile voice control become more prevalent.
Approach: They propose to extend the Switchboard-1 Telephone Speech Corpus by adding sentiment labels from 3 different human annotators for every transcript segment.
Outcome: The proposed corpus contains 49500 labeled speech segments covering 140 hours of audio.
CONFETTI: Conversational Function-Calling Evaluation Through Turn-Level Interactions (2025.acl-long)

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Challenge: Current benchmarks lack comprehensive assessment of large language models in complex conversational scenarios.
Approach: They introduce a conversational benchmark to evaluate function-calling capabilities of large language models.
Outcome: The proposed benchmark evaluates the function-calling capabilities and response quality of large language models.
Multimodal, Multilingual Grapheme-to-Phoneme Conversion for Low-Resource Languages (D19-61)

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Challenge: Grapheme-to-phoneme conversion (g2p) is a task of predicting the pronunciation of words from their orthographic representation.
Approach: They propose to leverage audio data as an auxiliary modality in a multi-task training process to learn a more optimal grapheme representation.
Outcome: The proposed model reduces phoneme error rate to 2.46% on in-domain test set compared to unimodal spelling- pronunciation model.
Corrupted but Not Broken: Understanding and Mitigating the Negative Impacts of Corrupted Data in Visual Instruction Tuning (2025.emnlp-main)

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Challenge: Visual Instruction Tuning (VIT) aims to enhance Multimodal Large Language Models (MLLMs), but its effectiveness is often compromised by corrupted datasets with issues such as hallucinated content and poor OCR quality.
Approach: They propose a corruption-robust training paradigm that surpasses existing strategies for mitigating the effects of corrupted data.
Outcome: The proposed training paradigm surpasses existing strategies for mitigating the effects of corrupted data.
Infusing Disease Knowledge into BERT for Health Question Answering, Medical Inference and Disease Name Recognition (2020.emnlp-main)

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Challenge: Existing methods to augment pre-trained language models with disease knowledge are lacking.
Approach: They propose a method to augment BERT-like pre-trained language models with disease knowledge.
Outcome: The proposed method improves on a suite of BERT models over three tasks.
Value Compass Benchmarks: A Comprehensive, Generative and Self-Evolving Platform for LLMs’ Value Evaluation (2025.acl-demo)

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Challenge: Current evaluation methods for large language models face two key challenges: 1. evaluation validity and 2. Result interpretation reduce the pluralistic and incommensurable values to one-dimensional scores.
Approach: They propose a platform for comprehensive value diagnosis of large language models (LLMs) that provides a generative evaluation paradigm that automatically creates real-world test items co-evolving with ever-advancing LLMs.
Outcome: The proposed platform provides a framework for comprehensive value diagnosis of large language models (LLMs) with fine-grained scores and case studies across 27 value dimensions for 33 leading LLMs, customized comparisons, and visualized analysis of LLM’s alignment with cultural values.
COVID-19 Literature Knowledge Graph Construction and Drug Repurposing Report Generation (2021.naacl-demos)

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Challenge: a new framework to digest relevant biomedical knowledge is needed to combat COVID-19 . quantity of research results is a bottleneck, and false information promoted in publications .
Approach: a team of researchers has developed a framework to extract multimedia knowledge elements from scientific literature to combat COVID-19.
Outcome: a new framework extracts fine-grained multimedia knowledge elements from scientific literature . it provides detailed contextual sentences, subfigures, and knowledge subgraphs as evidence . the framework is based on a case study of drug repurposing .
Natural Language Embedded Programs for Hybrid Language Symbolic Reasoning (2024.findings-naacl)

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Challenge: Existing methods for surfacing symbolic reasoning capabilities are limited to narrow tasks . arithmetic computations are unnatural to perform in pure language space, and hence present difficulties for LLMs.
Approach: They propose a natural language embedded program framework for solving symbolic reasoning tasks.
Outcome: The proposed framework improves on strong baselines across math and symbolic reasoning, text classification, question answering, and instruction following tasks.
PARADE: A New Dataset for Paraphrase Identification Requiring Computer Science Domain Knowledge (2020.emnlp-main)

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Challenge: Paraphrase identification requires specialized domain knowledge to perform . state-of-the-art neural models and non-expert human annotators have poor performance on PARADE .
Approach: They propose a benchmark dataset called PARADE for paraphrase identification that requires specialized domain knowledge.
Outcome: The proposed dataset shows state-of-the-art models and non-expert human annotators have poor performance on PARADE.
Beyond Positive Scaling: How Negation Impacts Scaling Trends of Language Models (2023.findings-acl)

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Challenge: Recent studies show that some tasks exhibit inverse scaling, or U-shaped scaling, where the performance degrades as models are scaled up.
Approach: They propose a task that asks questions with negation to show positive scaling . they hypothesize that solving NeQA depends on question answering and negation understanding .
Outcome: The proposed task can exhibit inverse scaling, U-shaped scaling, or positive scaling, and the scaling trends shift as the task is more powerful.
DiffCSE: Difference-based Contrastive Learning for Sentence Embeddings (2022.naacl-main)

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Challenge: Recent work shows that finetuning pretrained models with contrastive learning makes it possible to learn good sentence embeddings without labeled data.
Approach: They propose an unsupervised contrastive learning framework for learning sentence embeddings . they use a masked language model to mask out the edited sentence .
Outcome: The proposed framework outperforms SimCSE on semantic textual similarity tasks by 2.3 absolute points.
Spider: A Large-Scale Human-Labeled Dataset for Complex and Cross-Domain Semantic Parsing and Text-to-SQL Task (D18-1)

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Challenge: Existing datasets for semantic parsing are too small in terms of number of programs for training modern data-intensive models.
Approach: They propose a large-scale complex and cross-domain semantic parsing task for a database . they use a dataset with 10,181 questions and 5,693 unique complex SQL queries .
Outcome: The proposed task is different from previous tasks because it uses the same database and program . the best model achieves only 9.7% exact matching accuracy on a database split setting.
Towards Anytime Fine-tuning: Continually Pre-trained Language Models with Hypernetwork Prompts (2023.findings-emnlp)

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Challenge: Continual pre-training has been used for a multitude of domains and tasks . a continually pre-trained model can show a non-decreasing performance on unseen domains .
Approach: They propose a method that generates domain-specific prompts by agreement and disagreement losses.
Outcome: The proposed method achieves improvements of 3.57% and 3.4% on two real-world datasets.
KICGPT: Large Language Model with Knowledge in Context for Knowledge Graph Completion (2023.findings-emnlp)

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Challenge: Existing knowledge graph completion methods struggle with long-tail entities due to limited structural information and imbalanced distributions of entities.
Approach: They propose a framework that integrates a large language model and a triple-based KGC retriever to alleviate the long-tail problem without incurring additional training overhead.
Outcome: The proposed model reduces training overhead and finetuning costs on benchmark datasets.
Tanbih: Get To Know What You Are Reading (D19-3)

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Challenge: Nowadays, more and more readers consume news online.
Approach: They propose a news platform that displays news grouped into events and generates media profiles that show the general factuality of reporting, the degree of propagandistic content, hyper-partisanship, leading political ideology, general frame of reporting and stance with respect to various claims and topics of a media outlet.
Outcome: The proposed news platform displays news grouped into events and generates media profiles that show the factuality of reporting, the degree of propagandistic content, hyper-partisanship, leading political ideology, general frame of reporting and stance with respect to various claims and topics of a news outlet.
More Samples or More Prompts? Exploring Effective Few-Shot In-Context Learning for LLMs with In-Context Sampling (2024.findings-naacl)

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Challenge: Existing studies on LLM prompting focus on selecting a better set of data samples inside one single prompt input, but why not design and leverage multiple ICL prompts together to further improve the LLM’s performance?
Approach: They propose a low-resource LLM prompting technique to optimize the construction of multiple ICL prompt inputs to produce confident predictions.
Outcome: The proposed technique can produce confident predictions by optimizing the construction of multiple ICL prompt inputs on four NLI datasets and one QA dataset.
Protein Large Language Models: A Comprehensive Survey (2025.findings-emnlp)

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Challenge: Existing studies focus on specific aspects or applications, but this study provides a comprehensive overview of Protein-specific large language models.
Approach: This paper proposes a structured taxonomy of state-of-the-art ProteinLLMs . they analyze how they leverage large-scale protein sequence data for improved accuracy .
Outcome: The proposed model covers their architectures, training datasets, evaluation metrics, and diverse applications.
Measuring and Mitigating Constraint Violations of In-Context Learning for Utterance-to-API Semantic Parsing (2023.findings-emnlp)

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Challenge: In task-oriented semantic parsing, the system aims to translate users’ utterances in natural language to machine-interpretable programs (API calls) However, Large Language Models (LLMs) are known to hallucinate and therefore pose a formidable challenge in constraining generated content.
Approach: They propose to use large language models to translate user's utterances to machine-interpretable programs (API calls) they identify constraints violations in task-oriented utterrances and define fine-grained metrics that complement traditional ones.
Outcome: The proposed methods reduce constraints violations and improve quality of the generated API calls, but require careful consideration given their implementation complexity and latency.
On the Blind Spots of Model-Based Evaluation Metrics for Text Generation (2023.acl-long)

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Challenge: Existing methods for text generation evaluation metrics are lacking in robustness analysis.
Approach: They propose to use stress tests to test for errors in text generation evaluation metrics . they find that BERTScore is confused by truncation errors in summarization .
Outcome: The proposed stress tests show that they are insensitive to errors in open-ended generation, translation, and summarization.
PCFG-Based Natural Language Interface Improves Generalization for Controlled Text Generation (2023.starsem-1)

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Challenge: Existing work on controlled text generation (CTG) assumes a control interface of categorical attributes.
Approach: They propose a natural language interface to embed control attributes into natural language commands and propose variants of existing CTG models that take commands as input.
Outcome: The proposed model can generalize to unseen attributes and unsealed attribute combinations.
Zero-Shot Open-Schema Entity Structure Discovery (2026.eacl-long)

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Challenge: Existing methods based on large language models (LLMs) rely heavily on predefined entity attribute schemas or annotated datasets, often leading to incomplete extraction results.
Approach: They propose a novel approach to entity structure extraction that does not require any schema or annotated datasets.
Outcome: Experiments show that ZOES improves LLMs’ ability to extract more complete entity structures across three different domains, showcasing both the effectiveness and generalizability of the method.
Intermediate Layer Distillation with the Reused Teacher Classifier: A Study on the Importance of the Classifier of Attention-based Models (2024.findings-emnlp)

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Challenge: Existing methods underestimate the importance of utilizing the teacher's discriminative classifier and face challenges in establishing proper layer mappings.
Approach: They propose to reuse pre-trained teacher classifiers to improve student performance . they use projectors to match hidden size of the teacher model to student .
Outcome: The proposed method outperforms existing methods on 97.7% of the teacher BERT base without additional trainable parameters.
PaperSearchQA: Learning to Search and Reason over Scientific Papers with RLVR (2026.eacl-long)

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Challenge: Recent methods supervise only the final answer accuracy using reinforcement learning with verifiable rewards (RLVR).
Approach: They propose to train search agents to search and reason over scientific papers and a factoid QA dataset with 60k biomedical paper abstracts.
Outcome: The proposed model outperforms non-RL retrieval baselines and is scalable and extendable to other scientific domains.
Discovering Language Model Behaviors with Model-Written Evaluations (2023.findings-acl)

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Challenge: Prior work creates evaluations with crowdwork or existing data sources, which are not always available.
Approach: They generate evaluations automatically with language models (LMs) using crowdwork or existing data sources to find out how they behave .
Outcome: The results show that large LMs repeat back a dialog user’s preferred answer and express greater desire to pursue concerning goals like resource acquisition and goal preservation.
Mixture of insighTful Experts (MoTE): The Synergy of Reasoning Chains and Expert Mixtures in Self-Alignment (2025.acl-long)

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Challenge: Recent studies show that reasoning abilities contribute significantly to model safety, while integrating Mixture-of-Experts (MoE) architectures can further enhance alignment.
Approach: They propose a framework that synergistically combines reasoning chains and expert mixtures to improve self-alignment.
Outcome: The proposed framework improves model safety, jailbreak resistance, and over-refusal capabilities, achieving performance comparable to OpenAI’s state-of-the-art o1 model.
SEACrowd: A Multilingual Multimodal Data Hub and Benchmark Suite for Southeast Asian Languages (2024.emnlp-main)

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Challenge: Southeast Asia (SEA) is home to over 1,300 indigenous languages and 671 million people . prevailing AI models suffer from a significant lack of representation of texts, images, and audio datasets from SEA .
Approach: They propose to provide a resource center that provides standardized corpora in nearly 1,000 SEA languages across three modalities.
Outcome: a new benchmark assesses the quality of AI models on 36 SEA languages across 13 tasks . the results highlight the importance of SEA as a culturally diverse region .
Exposure Bias versus Self-Recovery: Are Distortions Really Incremental for Autoregressive Text Generation? (2021.emnlp-main)

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Challenge: Exposure bias is a central problem for auto-regressive language models (LM) it is believed that teacher forcing would cause test-time generation to be incrementally distorted due to the training-generation discrepancy.
Approach: They propose to quantify the impact of exposure bias in quality, diversity, consistency and consistency by using ground-truth data prefixes instead of prefix generated by the model.
Outcome: The proposed model performs better when the training-generation discrepancy is removed . the model is more robust and self-recovery ability is shown to counter exposure bias.
Forward-Backward Reasoning in Large Language Models for Mathematical Verification (2024.findings-acl)

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Challenge: Extensive experiments on six standard mathematical data sets and three LLMs show that FOBAR achieves state-of-the-art performance.
Approach: They propose to combine forward and backward reasoning to verify candidate answers . they propose to use a template to mask a number and ask the LLM to answer a backward question .
Outcome: Experiments on mathematical data show that proposed backward reasoning outperforms Self-Consistency.
Structured List-Grounded Question Answering (2025.coling-main)

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Challenge: Document-grounded dialogue systems aim to answer user queries by leveraging external information.
Approach: They propose a dataset to evaluate QA systems' ability to interpret and use structured lists . they use language models and model-based filtering processes to enhance data quality .
Outcome: The proposed model outperforms baselines on the LIST2QA dataset . it shows that the proposed model is more accurate and complete than baselines .

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