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Roi Reichart

29 accepted papers

2026

DeLeaker: Dynamic Inference-Time Reweighting For Semantic Leakage Mitigation in Text-to-Image Models

ICLR 2026poster

Text-to-Image (T2I) models have advanced rapidly, yet they remain vulnerable to semantic leakage, the unintended transfer of semantically related features between distinct entities. Existing mitigation strategies are often optimization-based or dependent on external inputs. We introduce **DeLeaker**…

Cited by 0SourceScholar
2025

Are LLMs Better than Reported? Detecting Label Errors and Mitigating Their Effect on Model Performance

EMNLP 2025

NLP benchmarks rely on standardized datasets for training and evaluating models and are crucial for advancing the field. Traditionally, expert annotations ensure high-quality labels; however, the cost of expert annotation does not scale well with the growing demand for larger datasets required by mo

Cited by 0SourcePDFScholar
2025

Can LLMs Learn Macroeconomic Narratives from Social Media?

NAACL 2025findings

This study empirically tests the Narrative Economics hypothesis, which posits that narratives (ideas that are spread virally and affect public beliefs) can influence economic fluctuations. We introduce two curated datasets containing posts from X (formerly Twitter) which capture economy-related narr…

Cited by 6SourcePDFScholar
2025

Dementia Through Different Eyes: Explainable Modeling of Human and LLM Perceptions for Early Awareness

EMNLP 2025

Cognitive decline often surfaces in language years before diagnosis. It is frequently non-experts, such as those closest to the patient, who first sense a change and raise concern. As LLMs become integrated into daily communication and used over prolonged periods, it may even be an LLM that notices

Cited by 0SourcePDFScholar
2025

LLMs Know More Than They Show: On the Intrinsic Representation of LLM Hallucinations

ICLR 2025poster

Large language models (LLMs) often produce errors, including factual inaccuracies, biases, and reasoning failures, collectively referred to as "hallucinations". Recent studies have demonstrated that LLMs' internal states encode information regarding the truthfulness of their outputs, and that this i…

2025

NL-Eye: Abductive NLI For Images

ICLR 2025poster

Will a Visual Language Model (VLM)-based bot warn us about slipping if it detects a wet floor? Recent VLMs have demonstrated impressive capabilities, yet their ability to infer outcomes and causes remains underexplored. To address this, we introduce NL-Eye, a benchmark designed to assess VLMs' visua…

Cited by 0SourcePDFScholar
2025

On Behalf of the Stakeholders: Trends in NLP Model Interpretability in the Era of LLMs

NAACL 2025long

Recent advancements in NLP systems, particularly with the introduction of LLMs, have led to widespread adoption of these systems by a broad spectrum of users across various domains, impacting decision-making, the job market, society, and scientific research. This surge in usage has led to an explosi…

2025

TabSTAR: A Tabular Foundation Model for Tabular Data with Text Fields

NeurIPS 2025poster

While deep learning has achieved remarkable success across many domains, it has historically underperformed on tabular learning tasks, which remain dominated by gradient boosting decision trees. However, recent advancements are paving the way for Tabular Foundation Models, which can leverage real-wo…

Cited by 0SourcecodeScholar
2025

The Alternative Annotator Test for LLM-as-a-Judge: How to Statistically Justify Replacing Human Annotators with LLMs

ACL 2025long

The “LLM-as-an-annotator” and “LLM-as-a-judge” paradigms employ Large Language Models (LLMs) as annotators, judges, and evaluators in tasks traditionally performed by humans. LLM annotations are widely used, not only in NLP research but also in fields like medicine, psychology, and social science. D…

2024

Does Fine-Tuning LLMs on New Knowledge Encourage Hallucinations?

EMNLP 2024main

When large language models are aligned via supervised fine-tuning, they may encounter new factual information that was not acquired through pre-training. It is often conjectured that this can teach the model the behavior of hallucinating factually incorrect responses, as the model is trained to gene…

Cited by 95SourcePDFScholar
2024

Faithful Explanations of Black-box NLP Models Using LLM-generated Counterfactuals

ICLR 2024poster

Causal explanations of the predictions of NLP systems are essential to ensure safety and establish trust. Yet, existing methods often fall short of explaining model predictions effectively or efficiently and are often model-specific. In this paper, we address model-agnostic explanations, proposing t…

Cited by 41SourcePDFScholar
2024

Measuring the Robustness of NLP Models to Domain Shifts

EMNLP 2024finding

Existing research on Domain Robustness (DR) suffers from disparate setups, limited task variety, and scarce research on recent capabilities such as in-context learning. Furthermore, the common practice of measuring DR might not be fully accurate. Current research focuses on challenge sets and relies…

2024

Text2Model: Text-based Model Induction for Zero-shot Image Classification

EMNLP 2024finding

We address the challenge of building task-agnostic classifiers using only text descriptions, demonstrating a unified approach to image classification, 3D point cloud classification, and action recognition from scenes. Unlike approaches that learn a fixed representation of the output classes, we gene…

Cited by 0SourcePDFScholar
2024

The Colorful Future of LLMs: Evaluating and Improving LLMs as Emotional Supporters for Queer Youth

NAACL 2024long

Queer youth face increased mental health risks, such as depression, anxiety, and suicidal ideation. Hindered by negative stigma, they often avoid seeking help and rely on online resources, which may provide incompatible information. Although access to a supportive environment and reliable informatio…

2024

Your Prompt Is My Command: On Assessing the Human-Centred Generality of Multimodal Models (Abstract Reprint)

AAAI 2024technical

Even with obvious deficiencies, large prompt-commanded multimodal models are proving to be flexible cognitive tools representing an unprecedented generality. But the directness, diversity, and degree of user interaction create a distinctive “human-centred generality” (HCG), rather than a fully auton…

Cited by 0SourcePDFScholar
2023

A Systematic Study of Knowledge Distillation for Natural Language Generation with Pseudo-Target Training

ACL 2023long

Modern Natural Language Generation (NLG) models come with massive computational and storage requirements. In this work, we study the potential of compressing them, which is crucial for real-world applications serving millions of users. We focus on Knowledge Distillation (KD) techniques, in which a s…

2023

Decoding Stumpers: Large Language Models vs. Human Problem-Solvers

EMNLP 2023short findings

This paper investigates the problem-solving capabilities of Large Language Models (LLMs) by evaluating their performance on stumpers, unique single-step intuition problems that pose challenges for human solvers but are easily verifiable. We compare the performance of four state-of-the-art LLMs (Davi…

Cited by 0SourceScholar
2023

Example-based Hypernetworks for Multi-source Adaptation to Unseen Domains

EMNLP 2023long findings

As Natural Language Processing (NLP) algorithms continually achieve new milestones, out-of-distribution generalization remains a significant challenge. This paper addresses the issue of multi-source adaptation for unfamiliar domains: We leverage labeled data from multiple source domains to generaliz…

Cited by 0SourceScholar
2022

A Functional Information Perspective on Model Interpretation

ICML 2022spotlight

Contemporary predictive models are hard to interpret as their deep nets exploit numerous complex relations between input elements. This work suggests a theoretical framework for model interpretability by measuring the contribution of relevant features to the functional entropy of the network with re…

2022

CEBaB: Estimating the Causal Effects of Real-World Concepts on NLP Model Behavior

NeurIPS 2022accept

The increasing size and complexity of modern ML systems has improved their predictive capabilities but made their behavior harder to explain. Many techniques for model explanation have been developed in response, but we lack clear criteria for assessing these techniques. In this paper, we cast model…

Cited by 54SourcePDFScholar
2022

DoCoGen: Domain Counterfactual Generation for Low Resource Domain Adaptation

ACL 2022long

Natural language processing (NLP) algorithms have become very successful, but they still struggle when applied to out-of-distribution examples. In this paper we propose a controllable generation approach in order to deal with this domain adaptation (DA) challenge. Given an input text example, our Do…

2022

In the Eye of the Beholder: Robust Prediction with Causal User Modeling

NeurIPS 2022accept

Accurately predicting the relevance of items to users is crucial to the success of many social platforms. Conventional approaches train models on logged historical data; but recommendation systems, media services, and online marketplaces all exhibit a constant influx of new content---making relevanc…

Cited by 5SourcePDFScholar
2022

Learning Discrete Structured Variational Auto-Encoder using Natural Evolution Strategies

ICLR 2022poster

Discrete variational auto-encoders (VAEs) are able to represent semantic latent spaces in generative learning. In many real-life settings, the discrete latent space consists of high-dimensional structures, and propagating gradients through the relevant structures often requires enumerating over an e…

2021

A Closer Look at Few-Shot Crosslingual Transfer: The Choice of Shots Matters

ACL 2021long

Few-shot crosslingual transfer has been shown to outperform its zero-shot counterpart with pretrained encoders like multilingual BERT. Despite its growing popularity, little to no attention has been paid to standardizing and analyzing the design of few-shot experiments. In this work, we highlight a…

Cited by 56SourcePDFScholar
2021

Are VQA Systems RAD? Measuring Robustness to Augmented Data with Focused Interventions

ACL 2021short

Deep learning algorithms have shown promising results in visual question answering (VQA) tasks, but a more careful look reveals that they often do not understand the rich signal they are being fed with. To understand and better measure the generalization capabilities of VQA systems, we look at their…

2021

DILBERT: Customized Pre-Training for Domain Adaptation with Category Shift, with an Application to Aspect Extraction

EMNLP 2021main

The rise of pre-trained language models has yielded substantial progress in the vast majority of Natural Language Processing (NLP) tasks. However, a generic approach towards the pre-training procedure can naturally be sub-optimal in some cases. Particularly, fine-tuning a pre-trained language model…

2020

Predicting Strategic Behavior from Free Text (Extended Abstract)

IJCAI 2020poster

The connection between messaging and action is fundamental both to web applications, such as web search and sentiment analysis, and to economics. However, while prominent online applications exploit messaging in natural (human) language in order to predict non-strategic action selection, the economi…

Cited by 0SourcePDFScholar