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Peter Clark

52 accepted papers

2026

AstaBench: Rigorous Benchmarking of AI Agents with a Scientific Research Suite

ICLR 2026oral

AI agents hold the potential to revolutionize scientific productivity by automating literature reviews, replicating experiments, analyzing data, and even proposing new directions of inquiry; indeed, there are now many such agents, ranging from general-purpose "deep research" systems to specialized s…

Cited by 0SourcecodeScholar
2026

SimpleToM: Exposing the Gap between Explicit ToM Inference and Implicit ToM Application in LLMs

ICLR 2026poster

Large language models (LLMs) are increasingly tested for a "Theory of Mind" (ToM) — the ability to attribute mental states to oneself and others. Yet most evaluations stop at explicit belief attribution in classical toy stories or stylized tasks, leaving open the questions of whether LLMs can implic…

Cited by 0SourcecodeScholar
2025

AutoDiscovery: Open-ended Scientific Discovery via Bayesian Surprise

NeurIPS 2025poster

The promise of autonomous scientific discovery (ASD) hinges not only on answering questions, but also on knowing which questions to ask. Most recent works in ASD explore the use of large language models (LLMs) in goal-driven settings, relying on human-specified research questions to guide hypothesis…

Cited by 0SourceScholar
2025

CodeScientist: End-to-End Semi-Automated Scientific Discovery with Code-based Experimentation

ACL 2025finding

Despite the surge of interest in autonomous scientific discovery (ASD) of software artifacts (e.g., improved ML algorithms), current ASD systems face two key limitations: (1) they largely explore variants of existing codebases or similarly constrained design spaces, and (2) they produce large volume…

2025

DiscoveryBench: Towards Data-Driven Discovery with Large Language Models

ICLR 2025poster

Can the rapid advances in code generation, function calling, and data analysis using large language models (LLMs) help automate the search and verification of hypotheses purely from a set of provided datasets? To evaluate this question, we present DiscoveryBench, the first comprehensive benchmark th…

2025

From Models to Microtheories: Distilling a Model's Topical Knowledge for Grounded Question-Answering

ICLR 2025poster

Recent reasoning methods (e.g., chain-of-thought) help users understand how language models (LMs) answer a single question, but they do little to reveal the LM’s overall understanding, or “theory,” about the question’s topic, making it still hard to trust the model. Our goal is to materialize such t…

2025

HypER: Literature-grounded Hypothesis Generation and Distillation with Provenance

EMNLP 2025

Large Language models have demonstrated promising performance in research ideation across scientific domains. Hypothesis development, the process of generating a highly specific declarative statement connecting a research idea with empirical validation, has received relatively less attention. Existi

Cited by 0SourcePDFScholar
2025

Latent Factor Models Meets Instructions: Goal-conditioned Latent Factor Discovery without Task Supervision

NAACL 2025long

Instruction-following LLMs have recently allowed systems to discover hidden concepts from a collection of unstructured documents based on a natural language description of the purpose of the discovery (i.e., goal). Still, the quality of the discovered concepts remains mixed, as it depends heavily on…

2025

ZebraLogic: On the Scaling Limits of LLMs for Logical Reasoning

ICML 2025poster

We investigate the logical reasoning capabilities of Large Language Models (LLMs) and their scalability across complex deductive tasks. Using ZebraLogic, a newly developed benchmark dataset of logic grid puzzles derived from constraint satisfaction problems (CSPs), we systematically evaluate LLM per…

Cited by 7SourcePDFScholar
2024

ADaPT: As-Needed Decomposition and Planning with Language Models

NAACL 2024findings

Large Language Models (LLMs) are increasingly being used for interactive decision-making tasks requiring planning and adapting to the environment. Recent works employ LLMs-as-agents in broadly two ways: iteratively determining the next action (iterative executors) or generating plans and executing s…

Cited by 92SourcePDFScholar
2024

Bias Runs Deep: Implicit Reasoning Biases in Persona-Assigned LLMs

ICLR 2024poster

Recent works have showcased the ability of large-scale language models (LLMs) to embody diverse personas in their responses, exemplified by prompts like ‘_You are Yoda. Explain the Theory of Relativity._’ While this ability allows personalization of LLMs and enables human behavior simulation, its ef…

2024

Can Language Models Serve as Text-Based World Simulators?

ACL 2024short

Virtual environments play a key role in benchmarking advances in complex planning and decision-making tasks but are expensive and complicated to build by hand. Can current language models themselves serve as world simulators, correctly predicting how actions change different world states, thus bypas…

Cited by 17SourcePDFScholar
2024

DiscoveryWorld: A Virtual Environment for Developing and Evaluating Automated Scientific Discovery Agents

NeurIPS 2024spotlight

Automated scientific discovery promises to accelerate progress across scientific domains, but evaluating an agent's capacity for end-to-end scientific reasoning is challenging as running real-world experiments is often prohibitively expensive or infeasible. In this work we introduce DiscoveryWorld,…

2024

Enhancing Systematic Decompositional Natural Language Inference Using Informal Logic

EMNLP 2024main

Recent language models enable new opportunities for structured reasoning with text, such as the construction of intuitive, proof-like textual entailment trees without relying on brittle formal logic. However, progress in this direction has been hampered by a long-standing lack of a clear protocol fo…

Cited by 9SourcePDFScholar
2024

Learning to Reason via Program Generation, Emulation, and Search

NeurIPS 2024poster

Program synthesis with language models (LMs) has unlocked a large set of reasoning abilities; code-tuned LMs have proven adept at generating programs that solve a wide variety of algorithmic symbolic manipulation tasks (e.g. word concatenation). However, not all reasoning tasks are easily expressibl…

2024

Leveraging Code to Improve In-Context Learning for Semantic Parsing

NAACL 2024long

In-context learning (ICL) is an appealing approach for semantic parsing due to its few-shot nature and improved generalization. However, learning to parse to rare domain-specific languages (DSLs) from just a few demonstrations is challenging, limiting the performance of even the most capable LLMs.In…

2024

NELLIE: A Neuro-Symbolic Inference Engine for Grounded, Compositional, and Explainable Reasoning

IJCAI 2024poster

Our goal is to develop a modern approach to answering questions via systematic reasoning where answers are supported by human interpretable proof trees grounded in an NL corpus of facts. Such a system would help alleviate the challenges of interpretability and hallucination with modern LMs, and the…

2024

Position: Data-driven Discovery with Large Generative Models

ICML 2024poster

With the accumulation of data at an unprecedented rate, its potential to fuel scientific discovery is growing exponentially. This position paper urges the Machine Learning (ML) community to exploit the capabilities of large generative models (LGMs) to develop automated systems for end-to-end data-dr…

Cited by 1SourcePDFScholar
2024

QualEval: Qualitative Evaluation for Model Improvement

NAACL 2024long

Quantitative evaluation metrics have been pivotal in gauging the advancements of AI systems like large language models (LLMs).However, due to the intricate nature of real-world tasks, a single scalar to quantify and compare performance trivializes the fine-grained nuances of model behavior. Addition…

Cited by 3SourcePDFScholar
2024

SUPER: Evaluating Agents on Setting Up and Executing Tasks from Research Repositories

EMNLP 2024main

Given that Large Language Models (LLMs) have made significant progress in writing code, can they now be used to autonomously reproduce results from research repositories? Such a capability would be a boon to the research community, helping researchers validate, understand, and extend prior work. To…

2024

Skill Set Optimization: Reinforcing Language Model Behavior via Transferable Skills

ICML 2024poster

Large language models (LLMs) have recently been used for sequential decision making in interactive environments. However, leveraging environment reward signals for continual LLM actor improvement is not straightforward. We propose Skill Set Optimization (SSO) for improving LLM actor performance thro…

2024

Tailoring with Targeted Precision: Edit-Based Agents for Open-Domain Procedure Customization

ACL 2024findings

How-to procedures, such as how to plant a garden, are now used by millions of users, but sometimes need customizing to meet a user’s specific needs, e.g., planting a garden without pesticides. Our goal is to measure and improve an LLM’s ability to perform such customization. Our approach is to test…

Cited by 0SourcePDFScholar
2024

The Unreasonable Effectiveness of Easy Training Data for Hard Tasks

ACL 2024long

How can we train models to perform well on hard test data when hard training data is by definition difficult to label correctly? This question has been termed the scalable oversight problem and has drawn increasing attention as language models have continually improved. In this paper, we present the…

2023

Complexity-Based Prompting for Multi-step Reasoning

ICLR 2023poster

We study the task of prompting large-scale language models to perform multi-step reasoning. Existing work shows that when prompted with a chain of thoughts (CoT), sequences of short sentences describing intermediate reasoning steps towards a final answer, large language models can generate new reaso…

Cited by 416SourcePDFScholar
2023

Decomposed Prompting: A Modular Approach for Solving Complex Tasks

ICLR 2023poster

Few-shot prompting is a surprisingly powerful way to use Large Language Models (LLMs) to solve various tasks. However, this approach struggles as the task complexity increases or when the individual reasoning steps of the task themselves are hard to learn, especially when embedded in more complex ta…

2023

Do language models have coherent mental models of everyday things?

ACL 2023long

When people think of everyday things like an egg, they typically have a mental image associated with it. This allows them to correctly judge, for example, that “the yolk surrounds the shell” is a false statement. Do language models similarly have a coherent picture of such everyday things? To invest…

2023

Dynamic Prompt Learning via Policy Gradient for Semi-structured Mathematical Reasoning

ICLR 2023poster

Mathematical reasoning, a core ability of human intelligence, presents unique challenges for machines in abstract thinking and logical reasoning. Recent large pre-trained language models such as GPT-3 have achieved remarkable progress on mathematical reasoning tasks written in text form, such as mat…

2023

IfQA: A Dataset for Open-domain Question Answering under Counterfactual Presuppositions

EMNLP 2023long main

Although counterfactual reasoning is a fundamental aspect of intelligence, the lack of large-scale counterfactual open-domain question-answering (QA) benchmarks makes it difficult to evaluate and improve models on this ability. To address this void, we introduce the first such dataset, named IfQA, w…

Cited by 0SourceScholar
2023

Increasing Probability Mass on Answer Choices Does Not Always Improve Accuracy

EMNLP 2023long main

When pretrained language models (LMs) are applied to discriminative tasks such as multiple-choice questions, they place probability mass on vocabulary tokens that aren't among the given answer choices. Spreading probability mass across multiple surface forms with identical meaning (such as "bath" an…

Cited by 0SourcecodeScholar
2023

Language Models with Rationality

EMNLP 2023long main

While large language models (LLMs) are proficient at question-answering (QA), it is not always clear how (or even if) an answer follows from their latent "beliefs". This lack of interpretability is a growing impediment to widespread use of LLMs. To address this, our goals are to make model beliefs a…

Cited by 0SourceScholar
2023

Let GPT be a Math Tutor: Teaching Math Word Problem Solvers with Customized Exercise Generation

EMNLP 2023long main

In this paper, we present a novel approach for distilling math word problem solving capabilities from large language models (LLMs) into smaller, more efficient student models. Our approach is designed to consider the student model's weaknesses and foster a tailored learning experience by generating…

Cited by 0SourceScholar
2023

RL4F: Generating Natural Language Feedback with Reinforcement Learning for Repairing Model Outputs

ACL 2023long

Despite their unprecedented success, even the largest language models make mistakes. Similar to how humans learn and improve using feedback, previous work proposed providing language models with natural language feedback to guide them in repairing their outputs. Because human-generated critiques are…

2023

Self-Refine: Iterative Refinement with Self-Feedback

NeurIPS 2023poster

Like humans, large language models (LLMs) do not always generate the best output on their first try. Motivated by how humans refine their written text, we introduce Self-Refine, an approach for improving initial outputs from LLMs through iterative feedback and refinement. The main idea is to generat…

Cited by 1546SourcePDFScholar
2022

DREAM: Improving Situational QA by First Elaborating the Situation

NAACL 2022long

When people answer questions about a specific situation, e.g., “I cheated on my mid-term exam last week. Was that wrong?”, cognitive science suggests that they form a mental picture of that situation before answering. While we do not know how language models (LMs) answer such questions, we conjectur…

2022

Entailer: Answering Questions with Faithful and Truthful Chains of Reasoning

EMNLP 2022main

Our goal is a question-answering (QA) system that can show how its answers are implied by its own internal beliefs via a systematic chain of reasoning. Such a capability would allow better understanding of why a model produced the answer it did. Our approach is to recursively combine a trained backw…

Cited by 58SourcePDFScholar
2022

LILA: A Unified Benchmark for Mathematical Reasoning

EMNLP 2022main

Mathematical reasoning skills are essential for general-purpose intelligentsystems to perform tasks from grocery shopping to climate modeling.Towards evaluating and improving AI systems in this domain, we proposeLILA, a unified mathematical reasoning benchmark consisting of 23 diversetasks along fou…

2022

Learn to Explain: Multimodal Reasoning via Thought Chains for Science Question Answering

NeurIPS 2022accept

When answering a question, humans utilize the information available across different modalities to synthesize a consistent and complete chain of thought (CoT). This process is normally a black box in the case of deep learning models like large-scale language models. Recently, science question benchm…

2022

Learning to repair: Repairing model output errors after deployment using a dynamic memory of feedback

NAACL 2022findings

Large language models (LMs), while powerful, are not immune to mistakes, but can be difficult to retrain. Our goal is for an LM to continue to improve after deployment, without retraining, using feedback from the user. Our approach pairs an LM with (i) a growing memory of cases where the user identi…

2022

Memory-assisted prompt editing to improve GPT-3 after deployment

EMNLP 2022main

Large LMs such as GPT-3 are powerful, but can commit mistakes that are obvious to humans. For example, GPT-3 would mistakenly interpret “What word is similar to good?” to mean a homophone, while the user intended a synonym. Our goal is to effectively correct such errors via user interactions with th…

2022

NumGLUE: A Suite of Fundamental yet Challenging Mathematical Reasoning Tasks

ACL 2022long

Given the ubiquitous nature of numbers in text, reasoning with numbers to perform simple calculations is an important skill of AI systems. While many datasets and models have been developed to this end, state-of-the-art AI systems are brittle; failing to perform the underlying mathematical reasoning…

Cited by 101SourcePDFScholar
2022

Towards Teachable Reasoning Systems: Using a Dynamic Memory of User Feedback for Continual System Improvement

EMNLP 2022main

Our goal is a teachable reasoning system for question-answering (QA), where a user can interact with faithful answer explanations, and correct its errors so that the system improves over time. Our approach is to augment a QA model with a dynamic memory of user feedback, containing user-supplied corr…

Cited by 36SourcePDFScholar
2022

What Makes Instruction Learning Hard? An Investigation and a New Challenge in a Synthetic Environment

EMNLP 2022main

The instruction learning paradigm—where a model learns to perform new tasks from task descriptions alone—has become popular in research on general-purpose models. The capabilities of large transformer models as instruction learners, however, remain poorly understood. We use a controlled synthetic en…

2021

BeliefBank: Adding Memory to a Pre-Trained Language Model for a Systematic Notion of Belief

EMNLP 2021main

Although pretrained language models (PTLMs) contain significant amounts of world knowledge, they can still produce inconsistent answers to questions when probed, even after specialized training. As a result, it can be hard to identify what the model actually “believes” about the world, making it sus…

Cited by 53SourcePDFScholar
2021

Explaining Answers with Entailment Trees

EMNLP 2021main

Our goal, in the context of open-domain textual question-answering (QA), is to explain answers by showing the line of reasoning from what is known to the answer, rather than simply showing a fragment of textual evidence (a “rationale”). If this could be done, new opportunities for understanding and…

2021

How much coffee was consumed during EMNLP 2019? Fermi Problems: A New Reasoning Challenge for AI

EMNLP 2021main

Many real-world problems require the combined application of multiple reasoning abilities—employing suitable abstractions, commonsense knowledge, and creative synthesis of problem-solving strategies. To help advance AI systems towards such capabilities, we propose a new reasoning challenge, namely F…

Cited by 25SourcePDFScholar
2021

Text Modular Networks: Learning to Decompose Tasks in the Language of Existing Models

NAACL 2021long

We propose a general framework called Text Modular Networks(TMNs) for building interpretable systems that learn to solve complex tasks by decomposing them into simpler ones solvable by existing models. To ensure solvability of simpler tasks, TMNs learn the textual input-output behavior (i.e., langua…

2021

Think about it! Improving defeasible reasoning by first modeling the question scenario.

EMNLP 2021main

Defeasible reasoning is the mode of reasoning where conclusions can be overturned by taking into account new evidence. Existing cognitive science literature on defeasible reasoning suggests that a person forms a “mental model” of the problem scenario before answering questions. Our research goal ask…

2021

proScript: Partially Ordered Scripts Generation

EMNLP 2021finding

Scripts – prototypical event sequences describing everyday activities – have been shown to help understand narratives by providing expectations, resolving ambiguity, and filling in unstated information. However, to date they have proved hard to author or extract from text. In this work, we demonstra…

Cited by 0SourcePDFScholar
2020

Leap-Of-Thought: Teaching Pre-Trained Models to Systematically Reason Over Implicit Knowledge

NeurIPS 2020spotlight

To what extent can a neural network systematically reason over symbolic facts? Evidence suggests that large pre-trained language models (LMs) acquire some reasoning capacity, but this ability is difficult to control. Recently, it has been shown that Transformer-based models succeed in consistent re…