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In robotics and computer vision, point set registration is necessary in many tasks, for example in estimating the motion of a sensor/sensors between subsequent scans containing point/feature sets. Currently, the Iterated Closest Point (ICP) method and its variants have been presented as possible solutions to this problem. However most of these methods lack robustness when random spatial and detection...
This paper presents the DeepCD framework which learns a pair of complementary descriptors jointly for image patch representation by employing deep learning techniques. It can be achieved by taking any descriptor learning architecture for learning a leading descriptor and augmenting the architecture with an additional network stream for learning a complementary descriptor. To enforce the complementary...
Modelling of a database performance depending on numerous factors is the first step towards its optimization. The linear regression model with optional parameters was created. Regression equation coefficients are optimized with the Flower Pollination metaheuristic algorithm. The algorithm is executed with numerous possible execution parameter combinations and results are discussed. Potential obstacles...
Business process is also a complex area which receives much attention in recent years especially in increasing productivity and saving cost. Meanwhile, situation at the company allows existing business processes to be enlarged. This paper proposed the performance measurement based on coloured petri net simulation of scalable business processes, which has purpose to compare the performance of scalable...
Widely used benchmarks, such as High Performance Linpack (HPL), do not always provide direct insights are notoriously poor indicators of into the actual application performance of systems. When real applications are used, and there have been are criticisms indicating that the performance of simplified benchmarks such as HPL no longer strongly correlate to real application performance. In contrast,...
This paper will present different modulation schemes for optimizing the efficiency of low-voltage traction drives. The converter of the vehicle automatically has to select the most suitable modulation or control scheme depending on the present operating point in order to maximize the efficiency of the complete drive train. Furthermore, the functional principles and algorithms of the individual modulation...
The size of a software artifact influences the software quality and impacts the development process. In industry, when software size exceeds certain thresholds, memory errors accumulate and development tools might not be able to cope anymore, resulting in a lengthy program start up times, failing builds, or memory problems at unpredictable times. Thus, foreseeing critical growth in software modules...
In this paper the calculations of the robustness of a network is addressed. After a brief description of the most relevant metrics, our Network Robustness Simulator(NRS) is presented as well as its structure and working model. The NRS computes the robustness I a dynamic scenario, it copes with multiple failures and different types of attack. In particular, the addition of the epidemic based model...
Achieving system fairness is a major design concern in current multicore processors. Unfairness arises due to contention in the shared resources of the system, such as the LLC and main memory. To address this problem, many research works have proposed novel cache partitioning policies aimed at addressing system fairness without harming performance. Unfortunately, existing proposals targeting fairness...
This paper provides a sensorless method to control the position of keys passing through a linear actuator used in an industrial textile machine. The presented method describes how to find out the position of the key using two cascading discrete Kalman filters, the first for filtering the speed and the second for filtering the impedance measurement in other to retrieve the position. Due to the thickness...
A novel approach of a test environment for embedded networking nodes has been conceptualized and implemented. Its basis is the use of virtual nodes in a PC environment, where each node executes the original embedded code. Different nodes run in parallel, connected via so-called virtual channels. The environment allows to modifying the behavior of the virtual channels as well as the overall topology...
In this study we show how the problem of an utility network design can be treated by using hypernets. Hypernet represents a mathematical object for describing multi-layer networks. Using such approach, it is possible to take into account the interaction between an utility network and an environment. As a result, we obtain a method of tracks finding for optimal laying of reliable enough utility network...
The authors of this paper suggest a mathematical model of a vessel diesel-generator installation meeting in larger extent the specific properties of such system and its application. A distinctive feature of the method under consideration is the use of the synchronous generator itself as a precise multifunctional sensor of the diagnostic information. The paper is also presenting the results of practical...
This paper presents an experimental validation of a statistical model of the response of a wire in a reverberant chamber. The statistical model is based on an approach known as Statistical Energy Analysis (SEA); the need to solve Maxwell's equations within the cavity is avoided by employing a relation known as the “diffuse field reciprocity principle”, which leads directly to an expression for the...
Traffic congestion, the main constituent of vehicular extrinsic flow resistance, has been an important factor in the design of routing algorithms. There are important intrinsic factors that can also aid these algorithms. This study proposes a new vehicular intrinsic flow resistance metric referred as sinuousness. To obtain this metric several scenarios are designed. Each scenario has a unique topology...
The paper presents the results of an analysis of the inter-turn fault effects on the voltage and current waveform of the capacitor discharge through transformer winding. The research was done within the FAIR project for which a measuring and diagnostic system for testing the condition of electrical circuits of superconducting electromagnets system is being developed. Appropriate measurements and simulations...
There are many models and metrics developed to study the resilience of networks. Eigenvalues are the roots of the characteristic polynomial for a given graph and are mathematically rigorous compared to a statistical measure such as degree distribution. The graph energy is the sum of absolute values of eigenvalues; there is a subtle difference between the adjacency, Laplacian, and normalized Laplacian...
During car services, it is sometimes necessary to measure the effective performance of the engines. After repairs it is very useful to check the change of the performance. In this case you don't have possibility of dismantling. You can measure the vehicle on roll benches. In this case you have so-called wheel performance as result. The new method discussed and described in this article provides a...
In this paper a log-MAP turbo decoding algorithm which incorporates reliability threshold based trellis branch elimination together with mean based early iteration termination has been proposed. The proposed algorithm reduces computational complexity by eliminating branches in trellis. Since the minimum Log Likelihood Ratio (LLR) obtained for each iteration varies with channel conditions, an early...
The scalability of business process model shows the ability of a system to handle the amount of provided business process activity. In business process management, scalability is used to compare the size of a business process model to other business process models. This research focused on measuring the scalability of business process models. Every business processes were modeled using Petri Net....
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