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Lambert Mathias

8 accepted papers

2025

Reading Recognition in the Wild

NeurIPS 2025poster

To enable egocentric contextual AI in always-on smart glasses, it is crucial to be able to keep a record of the user's interactions with the world, including during reading. In this paper, we introduce a new task of reading recognition to determine when the user is reading. We first introduce the fi…

Cited by 0SourceScholar
2023

Logical Satisfiability of Counterfactuals for Faithful Explanations in NLI

AAAI 2023technical

Evaluating an explanation's faithfulness is desired for many reasons such as trust, interpretability and diagnosing the sources of model's errors. In this work, which focuses on the NLI task, we introduce the methodology of Faithfulness-through-Counterfactuals, which first generates a counterfactual…

Cited by 14SourcePDFScholar
2023

Meta-training with Demonstration Retrieval for Efficient Few-shot Learning

ACL 2023findings

Large language models show impressive results on few-shot NLP tasks. However, these models are memory and computation-intensive. Meta-training allows one to leverage smaller models for few-shot generalization in a domain-general and task-agnostic manner; however, these methods alone results in model…

Cited by 7SourcePDFScholar
2023

TimelineQA: A Benchmark for Question Answering over Timelines

ACL 2023findings

Lifelogs are descriptions of experiences that a person had during their life. Lifelogs are created by fusing data from the multitude of digital services, such as online photos, maps, shopping and content streaming services. Question answering over lifelogs can offer personal assistants a critical re…

2022

Prompt-free and Efficient Few-shot Learning with Language Models

ACL 2022long

Current methods for few-shot fine-tuning of pretrained masked language models (PLMs) require carefully engineered prompts and verbalizers for each new task to convert examples into a cloze-format that the PLM can score. In this work, we propose Perfect, a simple and efficient method for few-shot fin…

2022

ToKen: Task Decomposition and Knowledge Infusion for Few-Shot Hate Speech Detection

EMNLP 2022main

Hate speech detection is complex; it relies on commonsense reasoning, knowledge of stereotypes, and an understanding of social nuance that differs from one culture to the next. It is also difficult to collect a large-scale hate speech annotated dataset. In this work, we frame this problem as a few-s…

Cited by 28SourcePDFScholar
2022

UNIREX: A Unified Learning Framework for Language Model Rationale Extraction

ICML 2022spotlight

An extractive rationale explains a language model’s (LM’s) prediction on a given task instance by highlighting the text inputs that most influenced the prediction. Ideally, rationale extraction should be faithful (reflective of LM’s actual behavior) and plausible (convincing to humans), without comp…

2022

UniPELT: A Unified Framework for Parameter-Efficient Language Model Tuning

ACL 2022long

Recent parameter-efficient language model tuning (PELT) methods manage to match the performance of fine-tuning with much fewer trainable parameters and perform especially well when training data is limited. However, different PELT methods may perform rather differently on the same task, making it no…