Search Results

1 - 10 of 11 items :

  • "data visualization" x
  • Engineering x
Clear All
A New Mechanism for Data Visualization with Tsk-Type Preprocessed Collaborative Fuzzy Rule Based System

Abstract

A novel data knowledge representation with the combination of structure learning ability of preprocessed collaborative fuzzy clustering and fuzzy expert knowledge of Takagi- Sugeno-Kang type model is presented in this paper. The proposed method divides a huge dataset into two or more subsets of dataset. The subsets of dataset interact with each other through a collaborative mechanism in order to find some similar properties within each-other. The proposed method is useful in dealing with big data issues since it divides a huge dataset into subsets of dataset and finds common features among the subsets. The salient feature of the proposed method is that it uses a small subset of dataset and some common features instead of using the entire dataset and all the features. Before interactions among subsets of the dataset, the proposed method applies a mapping technique for granules of data and centroid of clusters. The proposed method uses information of only half or less/more than the half of the data patterns for the training process, and it provides an accurate and robust model, whereas the other existing methods use the entire information of the data patterns. Simulation results show the proposed method performs better than existing methods on some benchmark problems.

Open access
Visualization of Events Using Various Kinds of Synchronized Data for the Border Guard

Abstract

STRADAR project is dedicated to streaming real-time data in a distributed dispatcher and teleinformation system of the Border Guard. The Events Visualization Post is a software designed for simultaneous visualization of data of different types in BG headquarters. The software allows the operator to visualize files, images, SMS, SDS, video, audio, and current or archival data on naval situation on digital maps. All the visualized data can be synchronized in time.

Open access
Stradar — Multimedia Dispatcher and Teleinformation System for the Border Guard

Abstract

Security of national borders requires utilization of multimedia surveillance systems automatically gathering, processing and sharing various data. The paper presents such a system developed for the Maritime Division of the Polish Border Guard within the STRADAR project. The system, apart from providing communication means, gathers data, such as map data from AIS, GPS and radar receivers, videos and photos from camera or audio from phone calls and SMS messages, from multiple mobile units and stationary points located along the coastline. All gathered data can be visualized on a multidisplay by the personnel that can dynamically select presented data and configure form of presentation. The paper describes system functionalities, its hardware and software implementation, and presents results of acceptance tests that the system have recently passed.

Open access
Invisible Base Electrode Coordinates Approximation for Simultaneous SPECT and EEG Data Visualization

Abstract

This work was performed as part of a larger research concerning the feasibility of improving the localization of epileptic foci, as compared to the standard SPECT examination, by applying the technique of EEG mapping. The presented study extends our previous work on the development of a method for superposition of SPECT images and EEG 3D maps when these two examinations are performed simultaneously. Due to the lack of anatomical data in SPECT images it is a much more difficult task than in the case of MRI/EEG study where electrodes are visible in morphological images. Using the appropriate dose of radioisotope we mark five base electrodes to make them visible in the SPECT image and then approximate the coordinates of the remaining electrodes using properties of the 10-20 electrode placement system and the proposed nine-ellipses model. This allows computing a sequence of 3D EEG maps spanning on all electrodes. It happens, however, that not all five base electrodes can be reliably identified in SPECT data. The aim of the current study was to develop a method for determining the coordinates of base electrode(s) missing in the SPECT image. The algorithm for coordinates approximation has been developed and was tested on data collected for three subjects with all visible electrodes. To increase the accuracy of the approximation we used head surface models. Freely available model from Oostenveld research based on data from SPM package and our own model based on data from our EEG/SPECT studies were used. For data collected in four cases with one electrode not visible we compared the invisible base electrode coordinates approximation for Oostenveld and our models. The results vary depending on the missing electrode placement, but application of the realistic head model significantly increases the accuracy of the approximation.

Open access
Visualization of SCANTER and ARPA Radar Data in the Distributed Teleinformation System for the Border Guard

Measurements and Optimization of Visualization of Routes Traveled in the Distributed Dispatcher and Teleinformation System for Visualization of Multimedia Data for the Border Guard , The European Navigation Conference (ENC 2019), 9–12 April, Warsaw 2019. [6] Czaplewski B., Cwalina K., Blok M., Kaczmarek S., Miszewski M., Młynarczuk M., Sac M., A system of visualization of operational situation on digital maps for mobile units of the Border Guards , VII Int. Conf. NATCON 2016, Chapter 5, pp. 51–60. [7] Czaplewski B., Cwalina K., Kaczmarek S., Katulski R., Data

Open access
Hydro power plants, an overview of the current types and technology

Database Office of Electricity Delivery & Energy Reliability. (Copyright © 2018 Sandia Corporation). DOE Global Energy Storage Database . Retrieved date of January 15 th , 2018, from https://www.energystorageexchange.org/projects/data_visualization [10] PAVLIKOVÁ, A., MOŽIEŠIK, L. (2016). Optimization of the operation of the selice water structure on the Váh River with regard to navigational safety. Pollack Periodica Vol. 11, no. 3 (no.2), p.93-104ISSN:1788-1994 [11] UNIDO & ICSHP (2013) Small hydropower world . Retrieved date of January 10 th , 2018

Open access
Biomonitoring Laboratory Oriented to Software Applications Development

Abstract

This paper presents a project-oriented laboratory. It is intended to provide an educational and research environment that stimulates innovative solutions in the growing field of Bioengineering. The authors took the advantages of the emerging technology and the increasing popularity of wearable biomonitoring devices, to teach students the key elements regarding the application of Information Technology in health monitoring. The students were involved in a complex project, along which they gain basic knowledge about the software development for biomonitoring, and apply it to effectively develop common structures and software applications. There are presented the stages of the laboratory work, with illustrations of the applications implementation at different levels of the hierarchy, starting from collecting data from the biomonitoring device, and finalizing with the data visualization by the end-user.

Open access
Modal Parameter Identification Of Cable Stayed Bridge Based On Exploratory Data Analysis

, “The Elements of Graphing Data”. Wadsworth Monterey, CA, 1985. 8. W. S. Cleveland, and R. McGill, “Graphical Perception: Theory, Experimentation, and Application to the Development of Graphical Methods”, Journal of the American Statistical Association, 79, pp 531–554, 1984. 9. E. R. Tufte, “The Visual Display of Quantitative Information”. Graphics Press Cheshire, CT, 1983. 10. E. R. Tufte, “Envisioning Information”. Graphics Press Cheshire, CT, 1990 11. A. Buja, D. Cook, and D. Swayne, “Interactive High-Dimensional Data Visualization, Journal

Open access
Application of Chemometric Analysis to the Study of Snow at the Sudety Mountains, Poland

Appennines. Atmos Res. 2002;61:311-334. DOI: 10.1016/S0169-8095(01)00139-9. [18] Stanimirova I, Walczak B, Massart DL. Multiple factor analysis in environmental chemistry. Anal Chim Acta. 2005;545:1-12. DOI: 10.1016/j.aca.2005.04.054. [19] Mellinger M. Chemometr Intell Lab Syst. 1987;2(29):29-36. DOI: 10.1016/0169-7439(87)80083-7. [20] Kohonen T. Self-organizing Maps. Berlin: Springer; 2001. www.springer.com/cn/book/9783540679219 . [21] Jin H, Shum WH, Leung KS, Wong ML. Expanding self-organizing map for data visualization and cluster analysis. Inf

Open access
Systematic variability in ICG recordings results in ICG complex subtypes – steps towards the enhancement of ICG characterization

. https://doi.org/10.1088/0967-3334/29/6/S32 18544834 10.1088/0967-3334/29/6/S32 Meijer J. H. Boesveldt S. Elbertse E. Berendse H. "Method to measure autonomic control of cardiac function using time interval parameters from impedance cardiography," Physiological measurement 29 S383 2008 https://doi.org/10.1088/0967-3334/29/6/S32 13 M. Handke, C. Jahnke, G. Heinrichs, J. Schlegel, C. Vos, D. Schmitt, et al., "New three-dimensional echocardiographic system using digital radiofrequency data—visualization and quantitative analysis of aortic

Open access