Enriquecimento semântico de repositórios de videoaulas: um estudo de caso
Resumo
Uma característica importante na maioria dos repositórios de vídeos educacionais é a carência de informações relevantes, nas palavras-chave e nos metadados, que possibilitem um pleno acesso aos vídeos através de mecanismos de busca. Um desses repositórios é o Videoaula@RNP, para o qual foi desenvolvido um projeto com foco no enriquecimento semântico dos vídeos educacionais lá armazenados, com base na transcrição de áudio, anotação semântica e análise de similaridade. Este artigo apresenta esta solução e os impactos gerados a partir da sua aplicação no repositório.
Palavras-chave:
vídeos educacionais, enriquecimento semântico, transcrição de áudio, anotação semântica, busca por similaridade
Referências
Biswas, A., Gandhi, A., and Deshmukh, O. (2015). MMToc: A multimodal method for table of content creation in educational videos. In Proceedings of the 23rd ACM International Conference on Multimedia, pages 621–630.
Casagrande, M. F. R., Kozima, G., and Willrich, R. (2015). A recommendation technique based on metadata for digital repositories oriented to learning. Brazilian Journal of Computers in Education, 23(02):70.
Cheniki, N., Belkhir, A., Sam, Y., and Messai, N. (2016). LODS: A linked open data based similarity measure. In 25th International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises, pages 229–234. IEEE.
Coelho, S. A. and de Souza, J. F. (2014). Anotação semântica de transcritos para indexação e busca de vídeos. In Conferência Ibero Americana WWW/INTERNET.
de Oliveira, F. K., Santana, J. R., and de Oliveira Pontes, M. G. (2010a). O vídeo como ferramenta educacional a partir de múltiplas plataformas. In Brazilian Symposium on Computers in Education (Simpósio Brasileiro de Informática na Educação - SBIE), volume 1.
de Oliveira, F. K., Santana, J. R., and de Oliveira Pontes, M. G. (2010b). O vídeo pela internet como ferramenta educacional. In Anais do Workshop de Informática na Escola, volume 1, pages 1389–1392.
Dias, L. L., Barbosa, J. S., Barrére, E., and de Souza, J. F. (2017). An approach to identify similarity among educational resources using external knowledge bases. Brazilian Journal of Computers in Education, 25(02):18.
Gomes Jr, J., Souza, J., and Barrére, E. (2017). Comparativo entre fontes de dados para anotação automática de videoaulas. In Simpósio Brasileiro de Informática na Educação, volume 28, page 1127.
Gravier, G., Jones, G. F., Larson, M., and Ordelman, R. (2015). Overview of the 2015 workshop on speech, language and audio in multimedia. In Proceedings of the 23rd ACM International Conference on Multimedia, pages 1347–1348.
Grunewald, F. and Meinel, C. (2015). Implementation and evaluation of digital e-lecture annotation in learning groups to foster active learning. IEEE Transactions on Learning Technologies, 8(3):286–298.
Herrera, J. E. T., Casanova, M. A., Nunes, B. P., Lopes, G. R., and Leme, L. (2016). DBpedia profiler tool: Profiling the connectivity of entity pairs in DBpedia. In International Workshop on Intelligent Exploration of Semantic Data.
Ko, T., Peddinti, V., Povey, D., and Khudanpur, S. (2015). Audio augmentation for speech recognition. In Sixteenth Annual Conference of the International Speech Communication Association.
Ko, T., Peddinti, V., Povey, D., Seltzer, M. L., and Khudanpur, S. (2017). A study on data augmentation of reverberant speech for robust speech recognition. In Acoustics, Speech and Signal Processing, 2017 IEEE International Conference on, pages 5220–5224.
Lawrence, R. (2008). Fundamentals of Speech Recognition. Pearson Education India.
Neves, D. E., Ishitani, L., and Brandão, W. C. (2016). Methodology for recommendation and aggregation of learning objects in SCORM. Brazilian Journal of Computers in Education, 24(01):11.
Raimond, Y. and Lowis, C. (2012). Automated interlinking of speech radio archives. LDOW, 937.
Taskiran, C. M., Pizlo, Z., Amir, A., Ponceleon, D., and Delp, E. J. (2006). Automated video program summarization using speech transcripts. IEEE Transactions on Multimedia, 8(4):775–791.
Turnbull, D., Barrington, L., Torres, D., and Lanckriet, G. (2008). Semantic annotation and retrieval of music and sound effects. IEEE Transactions on Audio, Speech, and Language Processing, 16(2):467–476.
Yang, H. and Meinel, C. (2014). Content based lecture video retrieval using speech and video text information. IEEE Transactions on Learning Technologies, 7(2):142–154.
Zhao, B., Xu, S., Lin, S., Luo, X., and Duan, L. (2015). A new visual navigation system for exploring biomedical open educational resource (OER) videos. Journal of the American Medical Informatics Association, 23(e1):e34–e41.
Zhu, G. and Iglesias, C. A. (2017). Computing semantic similarity of concepts in knowledge graphs. IEEE Transactions on Knowledge and Data Engineering, 29(1):72–85.
Casagrande, M. F. R., Kozima, G., and Willrich, R. (2015). A recommendation technique based on metadata for digital repositories oriented to learning. Brazilian Journal of Computers in Education, 23(02):70.
Cheniki, N., Belkhir, A., Sam, Y., and Messai, N. (2016). LODS: A linked open data based similarity measure. In 25th International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises, pages 229–234. IEEE.
Coelho, S. A. and de Souza, J. F. (2014). Anotação semântica de transcritos para indexação e busca de vídeos. In Conferência Ibero Americana WWW/INTERNET.
de Oliveira, F. K., Santana, J. R., and de Oliveira Pontes, M. G. (2010a). O vídeo como ferramenta educacional a partir de múltiplas plataformas. In Brazilian Symposium on Computers in Education (Simpósio Brasileiro de Informática na Educação - SBIE), volume 1.
de Oliveira, F. K., Santana, J. R., and de Oliveira Pontes, M. G. (2010b). O vídeo pela internet como ferramenta educacional. In Anais do Workshop de Informática na Escola, volume 1, pages 1389–1392.
Dias, L. L., Barbosa, J. S., Barrére, E., and de Souza, J. F. (2017). An approach to identify similarity among educational resources using external knowledge bases. Brazilian Journal of Computers in Education, 25(02):18.
Gomes Jr, J., Souza, J., and Barrére, E. (2017). Comparativo entre fontes de dados para anotação automática de videoaulas. In Simpósio Brasileiro de Informática na Educação, volume 28, page 1127.
Gravier, G., Jones, G. F., Larson, M., and Ordelman, R. (2015). Overview of the 2015 workshop on speech, language and audio in multimedia. In Proceedings of the 23rd ACM International Conference on Multimedia, pages 1347–1348.
Grunewald, F. and Meinel, C. (2015). Implementation and evaluation of digital e-lecture annotation in learning groups to foster active learning. IEEE Transactions on Learning Technologies, 8(3):286–298.
Herrera, J. E. T., Casanova, M. A., Nunes, B. P., Lopes, G. R., and Leme, L. (2016). DBpedia profiler tool: Profiling the connectivity of entity pairs in DBpedia. In International Workshop on Intelligent Exploration of Semantic Data.
Ko, T., Peddinti, V., Povey, D., and Khudanpur, S. (2015). Audio augmentation for speech recognition. In Sixteenth Annual Conference of the International Speech Communication Association.
Ko, T., Peddinti, V., Povey, D., Seltzer, M. L., and Khudanpur, S. (2017). A study on data augmentation of reverberant speech for robust speech recognition. In Acoustics, Speech and Signal Processing, 2017 IEEE International Conference on, pages 5220–5224.
Lawrence, R. (2008). Fundamentals of Speech Recognition. Pearson Education India.
Neves, D. E., Ishitani, L., and Brandão, W. C. (2016). Methodology for recommendation and aggregation of learning objects in SCORM. Brazilian Journal of Computers in Education, 24(01):11.
Raimond, Y. and Lowis, C. (2012). Automated interlinking of speech radio archives. LDOW, 937.
Taskiran, C. M., Pizlo, Z., Amir, A., Ponceleon, D., and Delp, E. J. (2006). Automated video program summarization using speech transcripts. IEEE Transactions on Multimedia, 8(4):775–791.
Turnbull, D., Barrington, L., Torres, D., and Lanckriet, G. (2008). Semantic annotation and retrieval of music and sound effects. IEEE Transactions on Audio, Speech, and Language Processing, 16(2):467–476.
Yang, H. and Meinel, C. (2014). Content based lecture video retrieval using speech and video text information. IEEE Transactions on Learning Technologies, 7(2):142–154.
Zhao, B., Xu, S., Lin, S., Luo, X., and Duan, L. (2015). A new visual navigation system for exploring biomedical open educational resource (OER) videos. Journal of the American Medical Informatics Association, 23(e1):e34–e41.
Zhu, G. and Iglesias, C. A. (2017). Computing semantic similarity of concepts in knowledge graphs. IEEE Transactions on Knowledge and Data Engineering, 29(1):72–85.
Publicado
29/10/2018
Como Citar
SILVA, João P. R. P. da; SOUZA, João Victor de; SOUZA, Jairo Francisco de; BARRÉRE, Eduardo.
Enriquecimento semântico de repositórios de videoaulas: um estudo de caso. In: SIMPÓSIO BRASILEIRO DE INFORMÁTICA NA EDUCAÇÃO (SBIE), 29. , 2018, Fortaleza/CE.
Anais [...].
Porto Alegre: Sociedade Brasileira de Computação,
2018
.
p. 1263-1272.
DOI: https://doi.org/10.5753/cbie.sbie.2018.1263.
