Now showing items 1-10 of 1299
Personalized collaborative filtering: a neighborhood model based on contextual constraints
(Association for Computing Machinery - ACMDongguk UniversityGyeongju, 2014-03)
In this paper, we propose a recommender system approach which considers contextual information from users and items in order to improve the accuracy of a neighborhood-based collaborative filtering algorithm. One advantage ...
Predição da taxa de progresso da ferrugem do cafeeiro por meio de ensembles.
(In: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 9., 2015, Curitiba. Consórcio pesquisa café: oportunidades e novos desafios: anais. Brasília, DF: Embrapa Café, 2015., 2015)
An abstract data type to handle vague spatial objects based on the fuzzy model
(Instituto Nacional de Pesquisas Espaciais - INPEUniversidade Federal de Santa Catarina - UFSCCampos do Jordão, 2015-11)
Crisp spatial data are geometric features with exact location on the extent and well-known boundaries. On the other hand, vague spatial data are characterized by inaccurate locations or uncertain boundaries. Despite the ...
IGMM-CD: a gaussian mixture classification algorithm for data streams with concept drifts
(Universidade Federal do Rio Grande do Norte – UFRNSociedade Brasileira de Computação – SBCNatal, 2015-11)
Learning concepts from data streams differs significantly from traditional batch learning, because in data streams the concepts to be learned may evolve over time. Incremental learning paradigm is a promising approach for ...
Synchronous machines parameters identification using load rejection test data
This work shows a computational methodology for the determination of synchronous machines parameters using load rejection test data. The quadrature axis parameters are obtained with a rejection under an arbitrary reference, ...
Interaction between wave and coastal structure: Validation of two lagrangian numerical models with experimental results marine 2011
Numerical modeling of the interaction among waves and coastal structures is a challenge due to the many nonlinear phenomena involved, such as, wave propagation, wave transformation with water depth, interaction among ...
A stable and online approach to detect concept drift in data streams
(Universidade de São Paulo - USPUniversidade Federal de São Carlos - UFSCarCentro de Robótica de São Carlos - CROBSociedade Brasileira de Computação - SBCSociedade Brasileira de Automática - SBASão Carlos, 2014-10)
The detection of concept drift allows to point out when a data stream changes its behavior over time, what supports further analysis to understand why the phenomenon represented by such data has changed. Nowadays, researchers ...
Conceptual model for adaptable and extensible visual data exploration
Interactive visual representations complement traditional statistical and machine learning techniques for data analysis, allowing users to play a more active role in a knowledge discovery process and making the whole process ...
What if multiusers wish to reconcile their data?
(Institute for Systems and Technologies of Information, Control and Communication - INSTICCScience and Technology Press – SciTePressBarcelona, 2015-04)
Reconciliation is the process of providing a consistent view of the data imported from different sources. Despite some efforts reported in the literature for providing data reconciliation solutions with asynchronous ...