27 citations · 140 across the 21 of their papers we have counts for
11 papers · 1 filter
Towards Learning Through Open-Domain Dialog
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
The development of artificial agents able to learn through dialog without domain restrictions has the potential to allow machines to learn how to perform tasks in a similar manner…
Automatic Recognition of the General-Purpose Communicative Functions defined by the ISO 24617-2 Standard for Dialog Act Annotation
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
ISO 24617-2, the standard for dialog act annotation, defines a hierarchically organized set of general-purpose communicative functions. The automatic recognition of these functions…
Hierarchical Multi-Label Dialog Act Recognition on Spanish Data
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
Dialog acts reveal the intention behind the uttered words. Thus, their automatic recognition is important for a dialog system trying to understand its conversational partner. The s…
Deep Dialog Act Recognition using Multiple Token, Segment, and Context Information Representations
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
Dialog act (DA) recognition is a task that has been widely explored over the years. Recently, most approaches to the task explored different DNN architectures to combine the repres…
A Study on Dialog Act Recognition using Character-Level Tokenization
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
Dialog act recognition is an important step for dialog systems since it reveals the intention behind the uttered words. Most approaches on the task use word-level tokenization. In…
Assessing User Expertise in Spoken Dialog System Interactions
Eugénio Ribeiro, Fernando Batista, Isabel Trancoso +3
Identifying the level of expertise of its users is important for a system since it can lead to a better interaction through adaptation techniques. Furthermore, this information can…
Mapping the Dialog Act Annotations of the LEGO Corpus into the Communicative Functions of ISO 24617-2
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
In this paper we present strategies for mapping the dialog act annotations of the LEGO corpus into the communicative functions of the ISO 24617-2 standard. Using these strategies,…
Summarization of Films and Documentaries Based on Subtitles and Scripts
Marta Aparício, Paulo Figueiredo, Francisco Raposo +3
We assess the performance of generic text summarization algorithms applied to films and documentaries, using the well-known behavior of summarization of news articles as reference.…
The Influence of Context on Dialogue Act Recognition
Eugénio Ribeiro, Ricardo Ribeiro, David Martins de Matos
This article presents an analysis of the influence of context information on dialog act recognition. We performed experiments on the widely explored Switchboard corpus, as well as…
Towards Using Machine Translation Techniques to Induce Multilingual Lexica of Discourse Markers
António Lopes, David Martins de Matos, Vera Cabarrão +4
Discourse markers are universal linguistic events subject to language variation. Although an extensive literature has already reported language specific traits of these events, lit…
Key Phrase Extraction of Lightly Filtered Broadcast News
Luis Marujo, Ricardo Ribeiro, David Martins de Matos +3
This paper explores the impact of light filtering on automatic key phrase extraction (AKE) applied to Broadcast News (BN). Key phrases are words and expressions that best character…