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This paper examines the application of a deep learning approach to converting night-time images to day-time images. In particular, we show that a convolutional neural network enables the simulation of artificial and ambient light on images. In this paper, we illustrate the design of the deep neural network and some preliminary results on a real indoor environment and two virtual environments rendered...
This paper presents a framework which allows urban planners to navigate and interact with large datasets fused with social feeds in real-time, enhanced by a virtual reality (VR) capability, which further promotes the knowledge discovery process and allows to interact with urban data in natural yet immersive way. A challenge in urban planning is making decisions based on datasets which are many times...
This paper describes the design and development of an interactive tool for explorative visualization of influence networks between artists. Developed in an interdisciplinary collaboration of computer scientists and art historians, the tool aims at supporting art historians and other interested parties in the interactive discovery and analysis of creative influences between a group of artists and their...
This paper investigates the uses of interactive video as a medium for teaching and learning activities. Based on the characteristics of interactive video annotations, various use cases are proposed and discussed. Two real experiments are then described. The first experiment is to add annotations to a video by teachers to produce course materials. The second is to produce a video and annotations on...
Different information visualization techniques can be found in the literature due to the quantity and variety of data stored in computational systems. In this context, the classification of chart images becomes important because it allows various types of graphs to be detected automatically in different contexts, allowing a more specific processing for each type of visualization, for example, data...
Timeseries line charts are a popular visualization technique but traditionally do not show many lines. We borrow concepts of tiny microtext and path dependent cartographic text to embed labels and additional text directly into lines on line charts, thereby making it easier to identify individual lines in a congested line chart, enabling more lines to be displayed and enabling additional data to be...
We have previously presented a visualization technique which represents multi-dimensional data as collection of lowdimensional parallel coordinate plots. This paper presents a general-purpose extension of the visualization technique which represents multi-dimensional data as a combination of the scatterplots with parallel coordinate plots. We aim to automatically select a small number of pairs of...
Spatio-temporal dependent data, such as weather observation data, is data in which attribute values depend on both the time and space in which they are recorded. Typical visualization methods of such data that are employed in mass communication involve plotting the attribute values at each point in time on a map, and either displaying a series of such maps in time order using animation or displaying...
In this paper, we present the field of Electronic Intelligence (ELINT) and the issues that it raises for visual analytics. ELINT aggregates many of the actual issues that visual analytics face such as huge amounts of data, complex data, complex tasks, missing data and unreliable data. This aggregation of specificities makes ELINT a domain raising many visualization issues. This paper identifies the...
Principal Component Analysis (PCA) is an established and efficient method for finding structure in a multidimensional data set. PCA is based on orthogonal transformations that convert a set of multidimensional values into linearly uncorrelated variables called principal components.The main disadvantage to the PCA approach is that the procedure and outcome are often difficult to understand. The connection...
Fluid dynamics simulation is often repeated while changing conditions, and therefore we need to compare a large amount of results. In order to compare results under different conditions, it is effective to overlap the streamlines generated from each condition in a single 3D space. Streamline is a curved line which represents a wind flow. This paper presents a technique to automatically select and...
In this paper, we propose an approach that uses software metrics to comprehend attributes of a codebase: maintainability, reusability, or complexity. This approach is new because it uses gathered metrics as the basis to associate musical sounds to source code classes. These sounds are arranged to compose a melody that can be both visualized (as a musical score) and played. We named this new way to...
This paper presents a novel technique for combining 2D and 2.5D treemaps using multi-perspective views to leverage the advantages of both treemap types. It enables a new form of overview+detail visualization for tree-structured data and contributes new concepts for real-time rendering of and interaction with treemaps. The technique operates by tilting the graphical elements representing inner nodes...
Biometric authentication systems verify the identity of individuals based on what they are. As they are error prone, they can reject genuine individuals or accept impostors. Researchers of the field quantify the quality of their algorithm by benchmarking it on several databases. However, although the standard evaluation metrics state the performance of their system, they are unable to explain the...
We investigate the watercolor brush strokes from the perspective of fluid dynamics and the pigments movement within the flowing water. We propose a method to plausibly simulate process of watercolor painting on rough paper including the diffusion effects on graphics processor. We present a method based on 2D fluid simulation using Navier-Stokes equations to simulate the ink diffusion. Intricate details...
Participant's emotional factors for a fully online course were measured twice during course using some metrics which were used for a blended learning course. Self efficacy and reflection during learning courses with instruction of note-taking skills were analysed. The contribution of courses and survey points were not significant for gathered responses from participants except "learning hours"...
Designers tend to have repetitive design strategy in the process without notices. The elements setting the interactive function is to conform the user requirement and it can improve the user experiences. Although it has many information recorded on the paper, but via the think-aloud we can find out many implicit information. Then, we can go through the sketch to understand how we define the visualize...
This paper examines the critical importance of time to the experience of place and argues that time-based virtual heritage creates more engaging and affective virtual places supporting rich learning opportunities for heritage audiences. It examines the experience of place, heritage place and virtual place as instanced in state-of-the-art computer games. It discusses the use of heritage visualisation...
Trees and graphs are two data structures that are commonly used in representing different kinds of data. They also have many associated algorithms taught in different courses. It is thus beneficial to have a tool that could be used by students, teachers and programmers to visually trace how their algorithms work. The work in this paper presents, CHR-Graph, an easy-to-use platform for animating trees...
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