Search Results for author: Silvia Terragni

Found 12 papers, 8 papers with code

BETOLD: A Task-Oriented Dialog Dataset for Breakdown Detection

no code implementations CAI (COLING) 2022 Silvia Terragni, Bruna Guedes, Andre Manso, Modestas Filipavicius, Nghia Khau, Roland Mathis

Ideally TOD systems should be able to detect dialog breakdowns to prevent users from quitting a conversation and to encourage them to interact with the system again.

Privacy Preserving

Reliable LLM-based User Simulator for Task-Oriented Dialogue Systems

no code implementations20 Feb 2024 Ivan Sekulić, Silvia Terragni, Victor Guimarães, Nghia Khau, Bruna Guedes, Modestas Filipavicius, André Ferreira Manso, Roland Mathis

Notably, we have observed that fine-tuning enhances the simulator's coherence with user goals, effectively mitigating hallucinations -- a major source of inconsistencies in simulator responses.

Data Augmentation Task-Oriented Dialogue Systems +1

In-Context Learning User Simulators for Task-Oriented Dialog Systems

2 code implementations1 Jun 2023 Silvia Terragni, Modestas Filipavicius, Nghia Khau, Bruna Guedes, André Manso, Roland Mathis

This paper presents a novel application of large language models in user simulation for task-oriented dialog systems, specifically focusing on an in-context learning approach.

Goal-Oriented Dialogue Systems In-Context Learning +3

Contrastive Language-Image Pre-training for the Italian Language

1 code implementation19 Aug 2021 Federico Bianchi, Giuseppe Attanasio, Raphael Pisoni, Silvia Terragni, Gabriele Sarti, Sri Lakshmi

CLIP (Contrastive Language-Image Pre-training) is a very recent multi-modal model that jointly learns representations of images and texts.

Image Retrieval Multi-label zero-shot learning +2

OCTIS: Comparing and Optimizing Topic models is Simple!

1 code implementation EACL 2021 Silvia Terragni, Elisabetta Fersini, Bruno Giovanni Galuzzi, Pietro Tropeano, Antonio Candelieri

In this paper, we present OCTIS, a framework for training, analyzing, and comparing Topic Models, whose optimal hyper-parameters are estimated using a Bayesian Optimization approach.

Topic Models

Cross-lingual Contextualized Topic Models with Zero-shot Learning

2 code implementations EACL 2021 Federico Bianchi, Silvia Terragni, Dirk Hovy, Debora Nozza, Elisabetta Fersini

They all cover the same content, but the linguistic differences make it impossible to use traditional, bag-of-word-based topic models.

Topic Models Transfer Learning +2

Pre-training is a Hot Topic: Contextualized Document Embeddings Improve Topic Coherence

3 code implementations ACL 2021 Federico Bianchi, Silvia Terragni, Dirk Hovy

Topic models extract groups of words from documents, whose interpretation as a topic hopefully allows for a better understanding of the data.

Sentence Embeddings Topic Models +1

Constrained Relational Topic Models

1 code implementation1 Feb 2020 Silvia Terragni, Elisabetta Fersini, Enza Messina

Relational topic models (RTM) have been widely used to discover hidden topics in a collection of networked documents.

Document Classification Topic Models

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