Search Results for author: Vladimir Araujo

Found 24 papers, 12 papers with code

EAGLE: Enhanced Visual Grounding Minimizes Hallucinations in Instructional Multimodal Models

no code implementations6 Jan 2025 Andrés Villa, Juan León Alcázar, Motasem Alfarra, Vladimir Araujo, Alvaro Soto, Bernard Ghanem

Our approach, named EAGLE, is fully agnostic to the LLM or fusion module and works as a post-pretraining approach that improves the grounding and language alignment of the visual encoder.

Hallucination Visual Grounding

Pixology: Probing the Linguistic and Visual Capabilities of Pixel-based Language Models

1 code implementation15 Oct 2024 Kushal Tatariya, Vladimir Araujo, Thomas Bauwens, Miryam de Lhoneux

Pixel-based language models have emerged as a compelling alternative to subword-based language modelling, particularly because they can represent virtually any script.

Language Modelling

Extracting and Encoding: Leveraging Large Language Models and Medical Knowledge to Enhance Radiological Text Representation

1 code implementation2 Jul 2024 Pablo Messina, René Vidal, Denis Parra, Álvaro Soto, Vladimir Araujo

In the first stage, we propose a \textit{Fact Extractor} that leverages large language models (LLMs) to identify factual statements from well-curated domain-specific datasets.

Natural Language Inference Representation Learning +2

CVQA: Culturally-diverse Multilingual Visual Question Answering Benchmark

no code implementations10 Jun 2024 David Romero, Chenyang Lyu, Haryo Akbarianto Wibowo, Teresa Lynn, Injy Hamed, Aditya Nanda Kishore, Aishik Mandal, Alina Dragonetti, Artem Abzaliev, Atnafu Lambebo Tonja, Bontu Fufa Balcha, Chenxi Whitehouse, Christian Salamea, Dan John Velasco, David Ifeoluwa Adelani, David Le Meur, Emilio Villa-Cueva, Fajri Koto, Fauzan Farooqui, Frederico Belcavello, Ganzorig Batnasan, Gisela Vallejo, Grainne Caulfield, Guido Ivetta, Haiyue Song, Henok Biadglign Ademtew, Hernán Maina, Holy Lovenia, Israel Abebe Azime, Jan Christian Blaise Cruz, Jay Gala, Jiahui Geng, Jesus-German Ortiz-Barajas, Jinheon Baek, Jocelyn Dunstan, Laura Alonso Alemany, Kumaranage Ravindu Yasas Nagasinghe, Luciana Benotti, Luis Fernando D'Haro, Marcelo Viridiano, Marcos Estecha-Garitagoitia, Maria Camila Buitrago Cabrera, Mario Rodríguez-Cantelar, Mélanie Jouitteau, Mihail Mihaylov, Mohamed Fazli Mohamed Imam, Muhammad Farid Adilazuarda, Munkhjargal Gochoo, Munkh-Erdene Otgonbold, Naome Etori, Olivier Niyomugisha, Paula Mónica Silva, Pranjal Chitale, Raj Dabre, Rendi Chevi, Ruochen Zhang, Ryandito Diandaru, Samuel Cahyawijaya, Santiago Góngora, Soyeong Jeong, Sukannya Purkayastha, Tatsuki Kuribayashi, Teresa Clifford, Thanmay Jayakumar, Tiago Timponi Torrent, Toqeer Ehsan, Vladimir Araujo, Yova Kementchedjhieva, Zara Burzo, Zheng Wei Lim, Zheng Xin Yong, Oana Ignat, Joan Nwatu, Rada Mihalcea, Thamar Solorio, Alham Fikri Aji

Visual Question Answering (VQA) is an important task in multimodal AI, and it is often used to test the ability of vision-language models to understand and reason on knowledge present in both visual and textual data.

Diversity Question Answering +1

Sequence-to-Sequence Spanish Pre-trained Language Models

1 code implementation20 Sep 2023 Vladimir Araujo, Maria Mihaela Trusca, Rodrigo Tufiño, Marie-Francine Moens

In recent years, significant advancements in pre-trained language models have driven the creation of numerous non-English language variants, with a particular emphasis on encoder-only and decoder-only architectures.

Decoder Generative Question Answering +2

A Memory Model for Question Answering from Streaming Data Supported by Rehearsal and Anticipation of Coreference Information

no code implementations12 May 2023 Vladimir Araujo, Alvaro Soto, Marie-Francine Moens

Existing question answering methods often assume that the input content (e. g., documents or videos) is always accessible to solve the task.

Memorization Question Answering

How Relevant is Selective Memory Population in Lifelong Language Learning?

no code implementations3 Oct 2022 Vladimir Araujo, Helena Balabin, Julio Hurtado, Alvaro Soto, Marie-Francine Moens

Lifelong language learning seeks to have models continuously learn multiple tasks in a sequential order without suffering from catastrophic forgetting.

Question Answering text-classification +1

Memory Population in Continual Learning via Outlier Elimination

1 code implementation4 Jul 2022 Julio Hurtado, Alain Raymond-Saez, Vladimir Araujo, Vincenzo Lomonaco, Alvaro Soto, Davide Bacciu

This paper introduces Memory Outlier Elimination (MOE), a method for identifying and eliminating outliers in the memory buffer by choosing samples from label-homogeneous subpopulations.

Continual Learning

ALBETO and DistilBETO: Lightweight Spanish Language Models

2 code implementations LREC 2022 José Cañete, Sebastián Donoso, Felipe Bravo-Marquez, Andrés Carvallo, Vladimir Araujo

In this paper we present ALBETO and DistilBETO, which are versions of ALBERT and DistilBERT pre-trained exclusively on Spanish corpora.

Natural Language Understanding NER +1

Entropy-based Stability-Plasticity for Lifelong Learning

1 code implementation18 Apr 2022 Vladimir Araujo, Julio Hurtado, Alvaro Soto, Marie-Francine Moens

The ability to continuously learn remains elusive for deep learning models.

Augmenting BERT-style Models with Predictive Coding to Improve Discourse-level Representations

no code implementations EMNLP 2021 Vladimir Araujo, Andrés Villa, Marcelo Mendoza, Marie-Francine Moens, Alvaro Soto

Current language models are usually trained using a self-supervised scheme, where the main focus is learning representations at the word or sentence level.

Relationship Detection Sentence

Stress Test Evaluation of Biomedical Word Embeddings

1 code implementation NAACL (BioNLP) 2021 Vladimir Araujo, Andrés Carvallo, Carlos Aspillaga, Camilo Thorne, Denis Parra

The success of pretrained word embeddings has motivated their use in the biomedical domain, with contextualized embeddings yielding remarkable results in several biomedical NLP tasks.

named-entity-recognition Named Entity Recognition +2

Interpretable Contextual Team-aware Item Recommendation: Application in Multiplayer Online Battle Arena Games

1 code implementation30 Jul 2020 Andrés Villa, Vladimir Araujo, Francisca Cattan, Denis Parra

Our evaluation indicates that both the Transformer architecture and the contextual information are essential to get the best results for this item recommendation task.

Recommendation Systems

Translating Natural Language Instructions for Behavioral Robot Navigation with a Multi-Head Attention Mechanism

no code implementations WS 2020 Patricio Cerda-Mardini, Vladimir Araujo, Alvaro Soto

We propose a multi-head attention mechanism as a blending layer in a neural network model that translates natural language to a high level behavioral language for indoor robot navigation.

Robot Navigation

On Adversarial Examples for Biomedical NLP Tasks

no code implementations23 Apr 2020 Vladimir Araujo, Andres Carvallo, Carlos Aspillaga, Denis Parra

We also show that we can significantly improve the robustness of the models by training them with adversarial examples.

Language Modeling Language Modelling +6

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