Bianchi Serique Meiguins

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Information visualization techniques have been successfully used to build visual and interactive analysis of data and data relationships. However, dimensionality, volume and diversity make it difficult for a single technique to completely solve the problem. Information visualization tools that support multiple coordinated views allow the user to better(More)
This paper presents a prototype for information visualization in an Augmented Reality environment. The prototype allows users to perform common tasks in desktop information visualization tools, such as data dynamic filters, attribute selection, semantic zoom and details on demand. Such tasks are seldom available in AR environments. We used a customized(More)
This paper presents a data analysis tool for mobile devices. Coordinated views are used to enhance the user's perception over data and diminish the difficulties caused by the lack of resources these mobiles present, specially when it comes to display size. The tool was totally developed in JavaME, what guarantees portability, scalability and code reuse. It(More)
This paper proposes the use of multiple coordinated views to support visual analytics. The Information Visualization tool PRISMA includes the implementation of three coordinated visualization techniques (treemap, parallel coordinates and scatterplot) and other auxiliary charts. The coordination is supported by filter, brushing, visual representation and(More)
The goal of this paper is to present an information visualization application capable of opening and coordinating information over two or more datasets. We have chosen this approach to address some of the limitations of various applications. Also, the application uses multiple coordinated views and multiple simultaneous datasets. We highlight the(More)
This paper presents EDACluster, an estimation of distribution algorithm (EDA) applied to the clustering task. EDA is an evolutionary algorithm used here to optimize the search for adequate clusters when very little is known about the target dataset. The proposed algorithm uses a mixed approach - density and grid- based - to identify sets of dense cells in(More)
The goal of this paper is to present PRISMA Mobile, an information visualization tool for android-based tablets. The application is based on a client-server model where the client uses as few resources as possible in order to preserve memory, battery and other device resources. To get better profit from the device, the tool uses the treemap technique(More)
With the spread of sales in electronic commerce and the popularization of interactive devices for digital television, grows the demand for applications that supports services over this platform, considering that television devices are present in 95% of brazilian households. In order to supply this demand, this work proposes a visualization interface(More)
This paper presents a prototype for information visualization in an augmented reality environment. The prototype allows users to perform common tasks in desktop information visualization tools, such as data dynamic filters, attribute selection, semantic zoom and details on demand. Such tasks are seldom available in AR environments. We used a customized(More)
The amount of data that must be collected for one to decide on a course of action, nowadays and in any field, is nothing if extraordinary. The three-dimensional graphic representation of data is a powerful tool for its analysis. And the possibility for interaction and browsing throughout these data makes this analysis much more interesting and productive.(More)