Using Generic Summarization to Improve Music Information Retrieval Tasks

In order to satisfy processing time constraints, many MIR tasks process only a segment of the whole music signal. This practice may lead to decreasing performance, since the most important information for the tasks may not be in those processed segments. In this paper, we leverage generic summarization algorithms, previously applied to text and speech summarization, to summarize items in music datasets. These algorithms build summaries, that are both concise and diverse, by selecting appropriate segments from the input signal which makes them good candidates to summarize music as well. We evaluate the summarization process on binary and multiclass music genre classification tasks, by comparing the performance obtained using summarized datasets against the performances obtained using continuous segments (which is the traditional method used for addressing the previously mentioned time constraints) and full songs of the same original dataset. We show that GRASSHOPPER, LexRank, LSA, MMR, and a Support Sets-based Centrality model improve classification performance when compared to selected 30-second baselines. We also show that summarized datasets lead to a classification performance whose difference is not statistically significant from using full songs. Furthermore, we make an argument stating the advantages of sharing summarized datasets for future MIR research.Comment: 24 pages, 10 tables; Submitted to IEEE/ACM Transactions on Audio, Speech and Language Processin

On the Application of Generic Summarization Algorithms to Music

Several generic summarization algorithms were developed in the past and successfully applied in fields such as text and speech summarization. In this paper, we review and apply these algorithms to music. To evaluate this summarization's performance, we adopt an extrinsic approach: we compare a Fado Genre Classifier's performance using truncated contiguous clips against the summaries extracted with those algorithms on 2 different datasets. We show that Maximal Marginal Relevance (MMR), LexRank and Latent Semantic Analysis (LSA) all improve classification performance in both datasets used for testing.Comment: 12 pages, 1 table; Submitted to IEEE Signal Processing Letter

The role of posterior parietal cortex in multisensory decision-making

Making a decision consists of committing to a plan of action, usually selected between two or more competing alternatives. Numerous fields have studied the processes involved in decision-making including psychology, economics, philosophy and statistics, to name only a few. In neuroscience the study of decision-making has been extremely fruitful in recent years and has focused on two main aspects: (1) perceptual decisionmaking, interested in understanding how external information is perceived by the sensory systems and used to make decisions; (2) value based decision-making, interested in the mechanisms that cause and result from the association of subjective values to the possible outcomes of a decision.(...

The role of advertising, influencers and celebrity endorsement on brand love: the youtuber´s effect

Brand love is the most emotionally intense connection between consumers and brands and it has been considered one of the most efficient tools to keep both entities together. This approach is crucial, as the current market has witnessed high levels of competition, with the new brands, new products, or even new communication ways emergence. At the same time, managers also realized that the use of influencers or digital creators as partners in the information dissemination process is an effectively beneficial practice. One of the possible platforms is YouTube, which is an ideal social network to implement such marketing strategies. The current dissertation aims to understand how YouTube influencers contribute to the process of brand love. During the development of the research, a set of customer engagement factors has arisen: numbers and results; connectedness with followers; frequency; credibility; argument quality; authenticity; visually appealing content; long-time relationships; and posts in the morning lead YouTube influencers to engage their followers. Such factors were also evaluation elements that were used to understand what other characteristics the strongest YouTubers in those factors have. Hence, this dissertation concludes that aspects as having an informal relationship with brands, presenting different content from others in the industry, or having a well-connected relationship with followers, have emerged as responses of the primary question, which try to capture what are the YouTubers’ characteristics in the area of advertising, influencers, and celebrity endorsement that contribute to brand love.Brand love é a ligação emocionalmente mais intensa entre consumidores e marcas, sendo considerada uma das ferramentas mais eficientes para manter ambas as entidades juntas. Esta abordagem é crucial, sabendo que o mercado atual tem testemunhado altos níveis de concorrência, com o surgimento de novas marcas, novos produtos e até novas formas de comunicação. Simultaneamente, os gestores também perceberam que o uso de influenciadores ou de criadores digitais como parceiros no processo de disseminação de informação é uma prática efetivamente benéfica. Uma das possíveis plataformas é o YouTube, uma rede social ideal para implementar as tais estratégias de marketing. Esta dissertação procura entender como é que os influenciadores do YouTube contribuem para o processo de brand love. Durante o desenvolvimento da pesquisa, surgiu um conjunto de fatores de envolvimento do consumidor: números e resultados; ligação com os seguidores; regularidade; credibilidade; qualidade do argumento; autenticidade; conteúdo visualmente apelativo; relações de longa data; e publicações durante a manhã levam às YouTubers a envolver os seus seguidores. Esses mesmos fatores foram utilizados como elementos de avaliação para perceber que outras características as YouTubers mais fortes a esse nível podem ter. Com isto, esta dissertação concluiu que aspetos como ter uma relação informal com as marcas, apresentar um conteúdo diferente daquele que a indústria oferece ou ter uma relação próxima com os seguidores são respostas à questão principal do estudo, que tenta perceber quais são as características das YouTubers na área da publicidade, influencers e endosso de celebridades que contribuem para o brand love

A Mother of Pearl Cross in the Convent of San Antonio de Padua in Seville

La cruz localizada en el convento de San Antonio de Padua (Sevilla) puede considerarse una de las piezas de nácar y ébano más importantes conservadas en España. A partir de cuestiones técnicas y decorativas se ha podido datar su factura en México en el siglo XVIII. Palabras clave: Cruz de Jerusalén, franciscanos, nácar, ébano, arte oriental, Filipinas, Méjico, siglo XVIIIThe cross found in the convent of San Antonio de Padua (Seville) can be considered one of the most interesting mother-of-pearl and ebony work preserved in Spain. Several technical and decorative reasons allow date its origin in Mexico in the 18th century. Keywords: Jerusalem cross, Franciscan, mother-of-pearl (MOP), ebony, orient art, Philippines, Mexico, 18th centur

Summarization of Films and Documentaries Based on Subtitles and Scripts

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. We use three datasets: (i) news articles, (ii) film scripts and subtitles, and (iii) documentary subtitles. Standard ROUGE metrics are used for comparing generated summaries against news abstracts, plot summaries, and synopses. We show that the best performing algorithms are LSA, for news articles and documentaries, and LexRank and Support Sets, for films. Despite the different nature of films and documentaries, their relative behavior is in accordance with that obtained for news articles.Comment: 7 pages, 9 tables, 4 figures, submitted to Pattern Recognition Letters (Elsevier

A inserção profissional dos diplomados da Escola Superior de Tecnologia da Saúde de Lisboa: regularidades e singularidades

É hoje cada vez mais frequente a constatação relativa ao modo como várias alterações ao nível da estrutura económica dos países desenvolvidos têm vindo a subverter e a inviabilizar as tradicionais lógicas de interpretação da realidade que tendiam a pôr a tónica na existência de uma transição linear entre escola e o mercado de trabalho. Factores como a massificação do ensino superior ou as novas dinâmicas das economias globalizadas em que paralelamente aos novos imperativos de competitividade, flexibilização e (des) regulação dos mercados se configuram ciclos de crescimento económico mais curtos e voláteis, impõem agora novas leituras que têm como pano de fundo a incerteza e a imprevisibilidade na vida individual e colectiva. Também em Portugal, sobretudo a partir de finais da década de 80, se têm vindo a acentuar algumas dificuldades, não só ao nível da empregabilidade dos diplomados do ensino superior, mas também ao nível da sua inserção profissional no âmbito das diferentes áreas científicas de formação. Apesar de se poder sustentar que a ressonância deste problema social surge simplificadamente empolada por alguns discursos e visões catastróficas acerca da perda de importância do ensino superior e da crescente desadequação da sua oferta formativa, este não deixa de se constituir como um fenómeno estrutural cada vez mais complexo e problemático, nomeadamente porque os períodos de inserção se tornaram mais longos e as posições no mercado de trabalho se diversificaram consideravelmente. Com efeito, também no campo das tecnologias da saúde se verificaram alterações profundas nos cenários de empregabilidade, por via da alteração da relação entre a oferta formativa e a oferta de trabalho/emprego. Até ao início desta década, o desemprego não constituía um problema nas diferentes áreas funcionais das Tecnologias da Saúde. Existia, pelo contrário, uma oferta de trabalho superior à procura, o mercado absorvia os diplomados e criou a possibilidade de acumulação do exercício profissional para grande parte destes profissionais. Com esta comunicação, pretende-se explorar a problemática teórica da inserção profissional dos diplomados do ensino superior a partir de um trabalho de investigação empírica levado a cabo no âmbito da Escola Superior de Tecnologia da Saúde de Lisboa. Para além das preocupações de comparabilidade

Perceived Environmental Supportiveness Scale: Portuguese Translation, Validation and Adaptation to the Physical Education Domain

Aim: Grounded on Self-Determination Theory, this study aimed to translate, adapt and validate the Perceived Environmental Supportiveness Scale (PESS) in a sample of Portuguese physical education students. Methods: The global sample was comprised of 964 students (518 females), divided in two groups: the calibration (n = 469) and the validation one (n = 483), all of them enrolled in two Physical Education (PE) classes/week. Results: The analysis provided support for a one factor and 12 items model, which are in line with the values adopted in the methodology (χ² = 196.123, df = 54, p = <.001, SRMR = .035, NNFI = .943, CFI = .954, RMSEA = .074, 90% CI .063-.085). Results express that the models are invariant in all analysis (i.e., calibration vs. validation, male vs. female,and 3rd vs. secondary cycle; three and single factor models). Conclusion: The present study suggests that the PESS with one factor and 12 items has good psychometric properties and can be used to assess perceived need supportive motivational environments provided by PE teachers. Additionally, invariance analysis showed support for the use of the scale in both genders and in the 3rd and secondary cycles.info:eu-repo/semantics/publishedVersio