Main Article Content

Davide Carneiro
Algoritmi Center/Department of Informatics, Minho University, Braga, Portugal
Daniel Araújo
Algoritmi Center/Department of Informatics, Minho University, Braga, Portugal
André Pimenta
Algoritmi Center/Department of Informatics, Minho University, Braga, Portugal
Paulo Novais
Algoritmi Center/Department of Informatics, Minho University, Braga, Portugal
Vol. 5 No. 4 (2016), Articles, pages 01-18
Accepted: Nov 15, 2016


In the last years, the amount of devices that can be connected to a network grew significantly allowing to, among other tasks, collect data about the environment or the people in it in a non-intrusive way. This generated nowadays well-known topics such as Big Data or the Internet of Things. This also opened the door to the development of novel and interesting applications. In this paper we propose a distributed system for acquiring data about the users of technological devices in a non-intrusive way. We describe how this data can be collected and transformed to produce meaningful interaction features, that reveal the state of the individuals. We analyse the requirements of such a system, namely in terms of storage and speed, and describe three prototypes currently being used in three different domains of application.


Download data is not yet available.

Article Details


Aiello, J. R. and Kolb, K. J., 1995. Electronic performance monitoring and social context: impact on productivity and stress. Journal of Applied Psychology, 80(3):339.

Bertino, E., Bernstein, P., Agrawal, D., Davidson, S., Dayal, U., Franklin, M., Gehrke, J., Haas, L., Halevy, A., Han, J. et al., 2011. Challenges and Opportunities with Big Data.

Cattell, R., 2011. Scalable SQL and NoSQL data stores. ACM SIGMOD Record, 39(4):12–27.

Chang, F., Dean, J., Ghemawat, S., Hsieh, W. C., Wallach, D. A., Burrows, M., Chandra, T., Fikes, A., and Gruber, R. E., 2006. Bigtable: A Distributed Storage System for Structured Data. In Proceedings of the 7th USENIX Symposium on Operating Systems Design and Implementation - Volume 7, OSDI '06, pages 15–15. USENIX Association, Berkeley, CA, USA.

Chaudhuri, S. and Dayal, U., 1997. An overview of data warehousing and OLAP technology. ACM Sigmod record, 26(1):65–74.

Dyrbye, L. N., Thomas, M. R., and Shanafelt, T. D., 2006. Systematic review of depression, anxiety, and other indicators of psychological distress among US and Canadian medical students. Academic Medicine, 81(4):354–373.

Gantz, J. and Reinsel, D., 2011. Extracting value from chaos. IDC iview, (1142):9–10.

Goebert, D., Thompson, D., Takeshita, J., Beach, C., Bryson, P., Ephgrave, K., Kent, A., Kunkel, M., Schechter, J., and Tate, J., 2009. Depressive symptoms in medical students and residents: a multischool study. Academic Medicine, 84(2):236–241.

Hwang, K.-A. and Yang, C.-H., 2009. Automated Inattention and Fatigue Detection System in Distance Education for Elementary School Students. Educational Technology & Society, 12(2):22–35.

Kejariwal, A., Kulkarni, S., and Ramasamy, K., 2015. Real time analytics: algorithms and systems. Proceedings of the VLDB Endowment, 8(12):2040–2041.

Khazaei, H., Fokaefs, M., Zareian, S., Beigi-Mohammadi, N., Ramprasad, B., Shtern, M., Gaikwad, P., and Litoiu, M., 2015. How do I choose the right NoSQL solution? A comprehensive theoretical and experimental survey. Submitted to Journal of Big Data and Information Analytics (BDIA).

Lourenço, J. R., Cabral, B., Carreiro, P., Vieira, M., and Bernardino, J., 2015. Choosing the right NoSQL database for the job: a quality attribute evaluation. Journal of Big Data, 2(1):1–26.

Mayer-Schönberger, V. and Cukier, K., 2013. Big data: A revolution that will transform how we live, work, and think. Houghton Mifflin Harcourt. ISBN 978-0544227750.

McEwen, B. S., 2012. Brain on stress: how the social environment gets under the skin. Proceedings of the National Academy of Sciences, 109(Supplement 2):17180–17185.

Pritchett, D., 2008. Base: An acid alternative. Queue, 6(3):48–55.

Soares, J. M., Sampaio, A., Ferreira, L. M., Santos, N., Marques, F., Palha, J. A., Cerqueira, J., and Sousa, N., 2012. Stress-induced changes in human decision-making are reversible. Translational psychiatry, 2(7):e131.

Stonebraker, M., 2010. SQL databases v. NoSQL databases. Communications of the ACM, 53(4):10–11.

Strous, R. D., Shoenfeld, N., Lehman, A., Wolf, A., Snyder, L., and Barzilai, O., 2012. Medical students' self-report of mental health conditions. International journal of medical education, 3:1. doi:10.5116/ijme.4ed1.d1e0.