Marcelo Tibau , Sean Wolfgand Matsui Siqueira, Bernardo Pereira Nunes, and Pertti Vakkari https://doi.org/10.1177/0165551526147889 Abstract This study presents the degree of knowledge gain, a behavioral metric that estimates how much searchers learn during Web searches. Grounded in information theory and Shannon entropy, the metric quantifies reductions in uncertainty by analyzing query reformulations, clicks, and document positions, avoiding reliance on pre/post-testing or self-reports. The metric was validated with a cohort of […]
Knowledge gain
5 posts
TIBAU, Marcelo; SILVA, Rafael Tavares da; SIQUEIRA, Sean Wolfgand Matsui; NUNES, Bernardo Pereira. Evaluating Knowledge Gain in Search Environments: An Exploratory Study of Learning Measurement. In: SIMPÓSIO BRASILEIRO DE SISTEMAS DE INFORMAÇÃO (SBSI), 22. , 2026, Vitória/ES. Anais […]. Porto Alegre: Sociedade Brasileira de Computação, 2026 . p. 478-496. ISSN 3086-4836. DOI: https://doi.org/10.5753/sbsi.2026.248557.
SILVA, Rafael Tavares da; SIQUEIRA, Sean Wolfgand Matsui; TIBAU, Marcelo. Implementing Knowledge Gain Measurement in Real Search Environments. In: CONCURSO DE TESES, DISSERTAÇÕES E TCCS EM SI – IC/IT – SIMPÓSIO BRASILEIRO DE SISTEMAS DE INFORMAÇÃO (SBSI), 22. , 2026, Vitória/ES. Anais […]. Porto Alegre: Sociedade Brasileira de Computação, 2026 . p. 61-70. DOI: https://doi.org/10.5753/sbsi_estendido.2026.249057.
TIBAU, M. ; SIQUEIRA, S. W. M. ; NUNES, B. P. . Accounting for the knowledge gained during a Web search: An empirical study on learning transfer indicators. LIBRARY & INFORMATION SCIENCE RESEARCH, v. 45, p. 101222, 2023. doi: 10.1016/j.lisr.2022.101222
GIMENEZ, PAULO JOSE DE ALCANTARA ; MACHADO, MARCELO DE OLIVEIRA COSTA ; PINELLI, CLEBER PINELLI ; SIQUEIRA, SEAN WOLFGAND MATSUI . Investigating the learning perspective of Searching as Learning, a review of the state of the art. In: Simpósio Brasileiro de Informática na Educação, 2020, Brasil. Anais do XXXI Simpósio Brasileiro de Informática na Educação (SBIE 2020). Porto Alegre: SBC, 2020. v. 1. p. 302-311. doi: 10.5753/cbie.sbie.2020.302