ESTG - Comunicações em conferências e congressos internacionais
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Percorrer ESTG - Comunicações em conferências e congressos internacionais por Objetivos de Desenvolvimento Sustentável (ODS) "04:Educação de Qualidade"
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- Children's reading aloud performance: a database and automatic detection of disfluenciesPublication . Proença, Jorge; Celorico, Dirce; Candeias, Sara; Lopes, Carla; Perdigão, FernandoThe automatic evaluation of children's reading performance by detecting and analyzing errors and disfluencies in speech is an important tool to build automatic reading tutors and to complement the current method of manual evaluations of overall reading ability in schools. A large amount of speech from children reading aloud plentiful in errors and disfluencies is needed to train acoustic, disfluency and pronunciation models for an automatic reading assessment system. This paper describes the acquisition and analysis of a read-aloud speech database of European Portuguese from children aged 6-10 from the first to fourth school grades. Towards the goal of detecting all reading errors and disfluencies, we apply a decoding process to the utterances using flexible word level lattices that allow syllable based false starts and repetitions of two or more word sequences. The proposed method proved promising in detecting corrections and repetitions in sentences, and provides an improved alignment of the data, helpful for future annotation tasks. The analysis of the database also shows agreement to government defined curricular goals for reading.
- Experience of an International Collaborative Project with First Year Programming StudentsPublication . Paterson, James H.; Karhu, Markku; Cazzola, Walter; Illina, Irina; Law, Robert; Malchiodi, Dario; Maximiano, Marisa; Silva, CatarinaThis paper describes an Erasmus Intensive Programme that used international collaboration as a novel pedagogical approach to teaching programming skills to first-year students in a blended learning context using a mixture of virtual environment and intensive teaching. The experience and outcomes of the Programme are evaluated from the viewpoints of the students and instructors and conclusions are drawn on the value and conduct of international student collaborations.
- Searching for the corner seismic moment in worldwide dataPublication . Felgueiras, Miguel; Santos, Rui; Oliveira Martins, João PauloIn this paper the existence of the corner frequency value for the seismic moment distribution is investigated, analysing worldwide data. Pareto based distributions, usually considered as the most suitable to this type of data, are fitted to the most recent data, available in a global earthquake catalog. Despite the undeniable finite nature of the seismic moment data, we conclude that no corner frequency can be established considering the available data set. © 2015 AIP Publishing LLC.
- Sustainable tourism and the circular economy: A theoretical overviewPublication . Costa, Berta; Rodrigues, Susana; Moreno, PilarThe concept of sustainable tourism has become one of the most noteworthy topics among academics and practitioners and a hallmark in tourism discourse. During the last decades, tourism has developed into one of the largest socio-economic activities, and thus driving economic growth that most supports to the countries’ GDP (Gross Domestic Product). The world economic paradigm, and consequently the tourism industry, is configured according to the linear model of production and consumption, in which goods are discarded after usage, resulting in massive waste. Furthermore, the degrading impact of tourism, along with the assumption that natural resources are abounding, and that environment has unlimited means to absorb waste, need to be addressed without delay. Considering these premises, the principle of sustainable tourism arose with the objective of minimizing the negative effects of tourism related activities. From this standpoint, circular economy emerges as a solution, as it harmonizes economic development with the sustainable use of natural resources, and also enables the tourism industry to become more sustainable. The purpose of this article is to outline the conceptual dimensions of sustainable tourism and circular economy, and also scrutinize how these two constructs have evolved over the past decades and their correlation. A broad literature review was conducted, in order to draw attention to the constituent elements brought to discussion.