Search Results for author: Rafael Ferreira

Found 8 papers, 3 papers with code

Plan-Grounded Large Language Models for Dual Goal Conversational Settings

no code implementations1 Feb 2024 Diogo Glória-Silva, Rafael Ferreira, Diogo Tavares, David Semedo, João Magalhães

In this paper, we tackle a dual goal mixed-initiative conversational setting where the LLM not only grounds the conversation on an arbitrary plan but also seeks to satisfy both a procedural plan and user instructions.

TWIZ-v2: The Wizard of Multimodal Conversational-Stimulus

no code implementations3 Oct 2023 Rafael Ferreira, Diogo Tavares, Diogo Silva, Rodrigo Valério, João Bordalo, Inês Simões, Vasco Ramos, David Semedo, João Magalhães

In this report, we describe the vision, challenges, and scientific contributions of the Task Wizard team, TWIZ, in the Alexa Prize TaskBot Challenge 2022.

Language Modelling Large Language Model

Rating Prediction in Conversational Task Assistants with Behavioral and Conversational-Flow Features

1 code implementation20 Sep 2023 Rafael Ferreira, David Semedo, João Magalhães

Predicting the success of Conversational Task Assistants (CTA) can be critical to understand user behavior and act accordingly.

Grounded Complex Task Segmentation for Conversational Assistants

1 code implementation20 Sep 2023 Rafael Ferreira, David Semedo, João Magalhães

Hence, when conversational assistants walk users through the steps of complex tasks, there is a need to structure the task into manageable pieces of information of the right length and complexity.

The Wizard of Curiosities: Enriching Dialogues with Fun Facts

no code implementations20 Sep 2023 Frederico Vicente, Rafael Ferreira, David Semedo, João Magalhães

Introducing curiosities in a conversation is a way to teach something new to the person in a pleasant and enjoyable way.

Knowledge-driven Answer Generation for Conversational Search

no code implementations14 Apr 2021 Mariana Leite, Rafael Ferreira, David Semedo, João Magalhães

In this work, we propose a knowledge-driven answer generation approach for open-domain conversational search, where a conversation-wide entities' knowledge graph is used to bias search-answer generation.

Answer Generation Conversational Search

BERT Embeddings Can Track Context in Conversational Search

no code implementations13 Apr 2021 Rafael Ferreira, David Semedo, Joao Magalhaes

In the last few years, in particular, the interest in conversational search is increasing, not only because of the generalization of conversational assistants but also because conversational search is a step forward in allowing a more natural interaction with the system.

Conversational Search Re-Ranking

Open-Domain Conversational Search Assistant with Transformers

1 code implementation20 Jan 2021 Rafael Ferreira, Mariana Leite, David Semedo, Joao Magalhaes

Open-domain conversational search assistants aim at answering user questions about open topics in a conversational manner.

Conversational Search Retrieval

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