Papers by Max Bartolo

13 papers
No Need for Explanations: LLMs can implicitly learn from mistakes in-context (2025.emnlp-main)

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Challenge: Existing literature assumes that correct answers to large language models must be accompanied by comprehensive rationales to be helpful.
Approach: They propose to show incorrect answers to Large Language Models (LLMs) as a popular strategy to improve their performance in reasoning-intensive tasks.
Outcome: The proposed approach outperforms chain-of-thought prompting in math reasoning tasks.
Dynatask: A Framework for Creating Dynamic AI Benchmark Tasks (2022.acl-demo)

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Challenge: Open source system for setting up custom NLP tasks aims to lower technical knowledge and effort required for hosting and evaluating state-of-the-art models.
Approach: They propose to integrate Dynatask with Dynabench to simplify benchmarking . they use a dataset to collect and clean data and train and evaluate models .
Outcome: Dynatask is an open source system for setting up custom NLP tasks . it is integrated with Dynabench, a research platform for rethinking benchmarking in AI .
Interpretation of Natural Language Rules in Conversational Machine Reading (D18-1)

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Challenge: Existing work on question answering problems requires the reading of text because it contains a recipe to derive an answer together with the reader’s background knowledge.
Approach: They formalise a task and develop a crowd-sourcing strategy to collect 37k task instances based on real-world rules and crowd-generated questions and scenarios.
Outcome: The proposed task is based on 37k task instances based in real-world rules and crowd-generated questions and scenarios.
Fishing for Magikarp: Automatically Detecting Under-trained Tokens in Large Language Models (2024.emnlp-main)

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Challenge: Disconnect between tokenizer creation and model training in language models allows for specific inputs, such as the infamous SolidGoldMagikarp token, to induce unwanted model behaviour.
Approach: They propose to use tokenizer analysis, model weight-based indicators, and prompting techniques to detect problematic tokens in large language models.
Outcome: The proposed methods show that tokenizers are under-trained across a diverse set of models and provide insights into improving the efficiency and safety of language models.
Fantastically Ordered Prompts and Where to Find Them: Overcoming Few-Shot Prompt Order Sensitivity (2022.acl-long)

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Challenge: Large pretrained language models can generate text classification results that match fully supervised models.
Approach: They propose to use a few sample training to determine which permutations are performant . they use generative language models to construct an artificial development set .
Outcome: The proposed model outperforms fully-supervised models in eleven text classification tasks.
Improving Question Answering Model Robustness with Synthetic Adversarial Data Generation (2021.emnlp-main)

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Challenge: a new approach to generate adversarial data is needed to improve question answering models . crowdworkers can fool a model only 8.8% of the time, compared to 17.6% for a trained model without synthetic data.
Approach: They develop a pipeline that generates questions and then filters or labels them to improve quality.
Outcome: The proposed approach improves state-of-the-art on a human-written adversarial dataset by 3.7F1 and improves model generalisation on nine of the twelve MRQA datasets.
Dynabench: Rethinking Benchmarking in NLP (2021.naacl-main)

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Challenge: Dynabench is an open-source platform for dynamic dataset creation and model benchmarking.
Approach: They propose an open-source platform for dynamic dataset creation and model benchmarking.
Outcome: The proposed platform can be used to create models that fail on simple challenges and falter in real-world scenarios.
Beat the AI: Investigating Adversarial Human Annotation for Reading Comprehension (2020.tacl-1)

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Challenge: Innovations in annotation methodologies have been a catalyst for Reading Comprehension (RC) datasets and models.
Approach: They propose to use a model-in-the-annotation-loop approach to train adversarial models in three different settings to explore reproducibility of the adversarial effect, transfer from data collected with varying model- in-the loop strengths, and generalization to data collected without a modeling model.
Outcome: The proposed approach achieves 39.9F1 on questions it cannot answer when trained on SQUAD, but lower than when trained using RoBERTa itself (41.0F1).
Aya Dataset: An Open-Access Collection for Multilingual Instruction Tuning (2024.acl-long)

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Challenge: Existing datasets in the English language are mostly in the realm of instruction fine-tuning . aya dataset, the Aya Collection, and the AYa Evaluation Suite are key resources .
Approach: They aim to build a human-curated instruction-following dataset spanning 65 languages . they work with fluent speakers of languages from around the world to collect natural instances of instructions and completions .
Outcome: The goal is to build a human-curated instruction-following dataset spanning 65 languages.
Contrasting Human- and Machine-Generated Word-Level Adversarial Examples for Text Classification (2021.emnlp-main)

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Challenge: Recent work has raised the question of whether valid adversarial inputs are feasible.
Approach: They analyze how human-generated adversarial examples compare to the best algorithms . they use crowdsourcing to modify words in an input text with immediate feedback .
Outcome: The proposed algorithms are not more efficient than the best to generate natural-reading, sentiment-preserving examples.
Models in the Loop: Aiding Crowdworkers with Generative Annotation Assistants (2022.naacl-main)

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Challenge: Dynamic Adversarial Data Collection (DADC) is a time-consuming and costly approach . DADC is based on training data collected from adversarial and out-of-domain settings .
Approach: They propose a dynamic data collection approach that uses generator-in-the-loop models to provide real-time suggestions that annotators can approve, modify, or reject.
Outcome: The proposed model is more robust in adversarial and out-of-domain settings and harder for humans to fool.
Improving Reward Models with Synthetic Critiques (2025.findings-naacl)

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Challenge: a recent study shows that reward models overfit on superficial features, hindering generalization performance . prevailing approach to training preference-based reward models presents several challenges .
Approach: They propose a method that uses synthetic natural language critiques to provide additional feedback to large language models.
Outcome: The proposed approach improves performance and data efficiency of RMs initialized from different pretrained models, reducing the reliance on costly human annotations.
Undersensitivity in Neural Reading Comprehension (2020.findings-emnlp)

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Challenge: Existing models generalise well to in-distribution test sets, yet perform poorly on adversarially selected data.
Approach: They propose an adversarial attack which searches among semantic variations of the question for which a model erroneously predicts the same answer, and with even higher probability.
Outcome: The proposed attack reduces the vulnerability of models trained on SQuAD2.0 and NewsQA, and outperforms a conventional model by as much as 10.9% F1.

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