activity
20192026
most citedHow Context Affects Language Models' Factual Predictions

80 citations · 167 across the 17 of their papers we have counts for

collaborators

22 papers

cs.CL2026

ConvApparel: A Benchmark Dataset and Validation Framework for User Simulators in Conversational Recommenders

Ofer Meshi, Krisztian Balog, Sally Goldman +5

The promise of LLM-based user simulators to improve conversational AI is hindered by a critical "realism gap," leading to systems that are optimized for simulated interactions, but…

cs.CL2025

Separate the Wheat from the Chaff: Winnowing Down Divergent Views in Retrieval Augmented Generation

Song Wang, Zihan Chen, Peng Wang +5

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by integrating external knowledge sources to address their limitations in accessing up-to-date or special…

cs.CL2025

Command A: An Enterprise-Ready Large Language Model

Team Cohere, :, Aakanksha +227

In this report we describe the development of Command A, a powerful large language model purpose-built to excel at real-world enterprise use cases. Command A is an agent-optimised…

cs.CL2025★ 1 cited

Multilingual Machine Translation with Open Large Language Models at Practical Scale: An Empirical Study

Menglong Cui, Pengzhi Gao, Wei Liu +2

Large language models (LLMs) have shown continuously improving multilingual capabilities, and even small-scale open-source models have demonstrated rapid performance enhancement. I…

cs.CL2024

Aya Expanse: Combining Research Breakthroughs for a New Multilingual Frontier

John Dang, Shivalika Singh, Daniel D'souza +42

We introduce the Aya Expanse model family, a new generation of 8B and 32B parameter multilingual language models, aiming to address the critical challenge of developing highly perf…

cs.CL2024★ 15 cited

Replacing Judges with Juries: Evaluating LLM Generations with a Panel of Diverse Models

Pat Verga, Sebastian Hofstatter, Sophia Althammer +6

As Large Language Models (LLMs) have become more advanced, they have outpaced our abilities to accurately evaluate their quality. Not only is finding data to adequately probe parti…

cs.CL2023★ 1 cited

FinGPT: Large Generative Models for a Small Language

Risto Luukkonen, Ville Komulainen, Jouni Luoma +18

Large language models (LLMs) excel in many tasks in NLP and beyond, but most open models have very limited coverage of smaller languages and LLM work tends to focus on languages wh…

cs.CL2023

GAIA Search: Hugging Face and Pyserini Interoperability for NLP Training Data Exploration

Aleksandra Piktus, Odunayo Ogundepo, Christopher Akiki +6

Noticing the urgent need to provide tools for fast and user-friendly qualitative analysis of large-scale textual corpora of the modern NLP, we propose to turn to the mature and wel…

cs.CL2023★ 32 cited

Scaling Data-Constrained Language Models

Niklas Muennighoff, Alexander M. Rush, Boaz Barak +6

The current trend of scaling language models involves increasing both parameter count and training dataset size. Extrapolating this trend suggests that training dataset size may so…

cs.CL2023

The ROOTS Search Tool: Data Transparency for LLMs

Aleksandra Piktus, Christopher Akiki, Paulo Villegas +5

ROOTS is a 1.6TB multilingual text corpus developed for the training of BLOOM, currently the largest language model explicitly accompanied by commensurate data governance efforts.…

cs.IR2023★ 1 cited

Spacerini: Plug-and-play Search Engines with Pyserini and Hugging Face

Christopher Akiki, Odunayo Ogundepo, Aleksandra Piktus +4

We present Spacerini, a tool that integrates the Pyserini toolkit for reproducible information retrieval research with Hugging Face to enable the seamless construction and deployme…

cs.LG2022★ 5 cited

Evaluate & Evaluation on the Hub: Better Best Practices for Data and Model Measurements

Leandro von Werra, Lewis Tunstall, Abhishek Thakur +16

Evaluation is a key part of machine learning (ML), yet there is a lack of support and tooling to enable its informed and systematic practice. We introduce Evaluate and Evaluation o…

cs.IR2022

Improving Wikipedia Verifiability with AI

Fabio Petroni, Samuel Broscheit, Aleksandra Piktus +10

Verifiability is a core content policy of Wikipedia: claims that are likely to be challenged need to be backed by citations. There are millions of articles available online and tho…

cs.CL2021★ 24 cited

The Web Is Your Oyster - Knowledge-Intensive NLP against a Very Large Web Corpus

Aleksandra Piktus, Fabio Petroni, Vladimir Karpukhin +8

In order to address increasing demands of real-world applications, the research for knowledge-intensive NLP (KI-NLP) should advance by capturing the challenges of a truly open-doma…

cs.CL2021★ 1 cited

Domain-matched Pre-training Tasks for Dense Retrieval

Barlas Oğuz, Kushal Lakhotia, Anchit Gupta +8

Pre-training on larger datasets with ever increasing model size is now a proven recipe for increased performance across almost all NLP tasks. A notable exception is information ret…

cs.CL2021

PAQ: 65 Million Probably-Asked Questions and What You Can Do With Them

Patrick Lewis, Yuxiang Wu, Linqing Liu +5

Open-domain Question Answering models which directly leverage question-answer (QA) pairs, such as closed-book QA (CBQA) models and QA-pair retrievers, show promise in terms of spee…

cs.CL2020

Generating Fact Checking Briefs

Angela Fan, Aleksandra Piktus, Fabio Petroni +5

Fact checking at scale is difficult -- while the number of active fact checking websites is growing, it remains too small for the needs of the contemporary media ecosystem. However…

cs.CL2020

KILT: a Benchmark for Knowledge Intensive Language Tasks

Fabio Petroni, Aleksandra Piktus, Angela Fan +10

Challenging problems such as open-domain question answering, fact checking, slot filling and entity linking require access to large, external knowledge sources. While some models d…

cs.CL2020★ 80 cited

How Context Affects Language Models' Factual Predictions

Fabio Petroni, Patrick Lewis, Aleksandra Piktus +4

When pre-trained on large unsupervised textual corpora, language models are able to store and retrieve factual knowledge to some extent, making it possible to use them directly for…

cs.LG2020★ 7 cited

Node Masking: Making Graph Neural Networks Generalize and Scale Better

Pushkar Mishra, Aleksandra Piktus, Gerard Goossen +1

Graph Neural Networks (GNNs) have received a lot of interest in the recent times. From the early spectral architectures that could only operate on undirected graphs per a transduct…

cs.CL2019

How Decoding Strategies Affect the Verifiability of Generated Text

Luca Massarelli, Fabio Petroni, Aleksandra Piktus +5

Recent progress in pre-trained language models led to systems that are able to generate text of an increasingly high quality. While several works have investigated the fluency and…

cs.CL2019

Misspelling Oblivious Word Embeddings

Bora Edizel, Aleksandra Piktus, Piotr Bojanowski +3

In this paper we present a method to learn word embeddings that are resilient to misspellings. Existing word embeddings have limited applicability to malformed texts, which contain…