Search Results for author: Christophe Gravier

Found 17 papers, 11 papers with code

Fine-tuning Strategies for Domain Specific Question Answering under Low Annotation Budget Constraints

no code implementations17 Jan 2024 Kunpeng Guo, Dennis Diefenbach, Antoine Gourru, Christophe Gravier

In this work, we demonstrate that this strategy is sub-optimal for fine-tuning QA models, especially under a low QA annotation budget, which is a usual setting in practice due to the extractive QA labeling cost.

Language Modelling Question Answering

QAnswer: Towards Question Answering Search over Websites

no code implementations17 Jan 2024 Kunpeng Guo, Clement Defretiere, Dennis Diefenbach, Christophe Gravier, Antoine Gourru

Question Answering (QA) is increasingly used by search engines to provide results to their end-users, yet very few websites currently use QA technologies for their search functionality.

Knowledge Graphs Question Answering

Wikidata as a seed for Web Extraction

no code implementations15 Jan 2024 Kunpeng Guo, Dennis Diefenbach, Antoine Gourru, Christophe Gravier

On the other side, most of the information on the Web is not published in highly structured data repositories like Wikidata, but rather as unstructured and semi-structured content, more concretely in HTML pages containing text and tables.

Question Answering

An investigation of structures responsible for gender bias in BERT and DistilBERT

no code implementations12 Jan 2024 Thibaud Leteno, Antoine Gourru, Charlotte Laclau, Christophe Gravier

In this paper, we propose an empirical exploration of this problem by formalizing two questions: (1) Can we identify the neural mechanism(s) responsible for gender bias in BERT (and by extension DistilBERT)?

Attribute Fairness

Fair Text Classification with Wasserstein Independence

1 code implementation21 Nov 2023 Thibaud Leteno, Antoine Gourru, Charlotte Laclau, Rémi Emonet, Christophe Gravier

This is more suitable for real-life scenarios compared to existing methods that require annotations of sensitive attributes at train time.

Attribute Fairness +2

ProtAugment: Intent Detection Meta-Learning through Unsupervised Diverse Paraphrasing

1 code implementation ACL 2021 Thomas Dopierre, Christophe Gravier, Wilfried Logerais

It relies on diverse paraphrasing: a conditional language model is first fine-tuned for paraphrasing, and diversity is later introduced at the decoding stage at each meta-learning episode.

Intent Detection Language Modelling +1

ProtAugment: Unsupervised diverse short-texts paraphrasing for intent detection meta-learning

1 code implementation27 May 2021 Thomas Dopierre, Christophe Gravier, Wilfried Logerais

It relies on diverse paraphrasing: a conditional language model is first fine-tuned for paraphrasing, and diversity is later introduced at the decoding stage at each meta-learning episode.

Intent Detection Language Modelling +1

Few-shot Pseudo-Labeling for Intent Detection

1 code implementation COLING 2020 Thomas Dopierre, Christophe Gravier, Julien Subercaze, Wilfried Logerais

This performance is achieved on multiple intent detection datasets, even in more challenging situations where the number of classes is large or when the dataset is highly imbalanced.

Clustering Intent Detection +2

Near-lossless Binarization of Word Embeddings

1 code implementation24 Mar 2018 Julien Tissier, Christophe Gravier, Amaury Habrard

Word embeddings are commonly used as a starting point in many NLP models to achieve state-of-the-art performances.

Binarization Semantic Similarity +5

Zero-Shot Question Generation from Knowledge Graphs for Unseen Predicates and Entity Types

1 code implementation NAACL 2018 Hady Elsahar, Christophe Gravier, Frederique Laforest

We present a neural model for question generation from knowledge base triples in a "Zero-Shot" setup, that is generating questions for triples containing predicates, subject types or object types that were not seen at training time.

Knowledge Graphs Question Generation +2

Unsupervised Open Relation Extraction

1 code implementation22 Jan 2018 Hady Elsahar, Elena Demidova, Simon Gottschalk, Christophe Gravier, Frederique Laforest

We explore methods to extract relations between named entities from free text in an unsupervised setting.

Clustering Relation +2

High Recall Open IE for Relation Discovery

no code implementations IJCNLP 2017 Hady Elsahar, Christophe Gravier, Frederique Laforest

Relation Discovery discovers predicates (relation types) from a text corpus relying on the co-occurrence of two named entities in the same sentence.

Open Information Extraction Relation +3

Dict2vec : Learning Word Embeddings using Lexical Dictionaries

1 code implementation EMNLP 2017 Julien Tissier, Christophe Gravier, Amaury Habrard

Learning word embeddings on large unlabeled corpus has been shown to be successful in improving many natural language tasks.

General Classification Knowledge Graphs +8

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