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In this paper we present efficient algorithm for enumerating frequent pairs in database of transactions. Counting support for itemset pairs can be dominant step in frequent itemset mining occupying in some cases greater that 90% of total execution time. For efficient implementation we use one-dimensional array and define one-to-one function that maps 2-itemsets to array indexes preserving lexicographic...
It is proposed a new algorithm for parallel connected component labeling which applies labels to image runs. The algorithm is designed to efficiently label a text document with a large number of characters inside. In contrast to the existing parallel labeling algorithms, our method benefits from modern CPU architectures; it is designed to operate on image runs, not pixels, which make it possible to...
The paper describes development experience and presents operation results of the test organisms' efficiency self-diagnosis as a part of the bioelectronic System for Industrial Biological Water Quality Monitoring (SIBWQM) installed at water intakes of St. Petersburg (Russia).
Integrating or creating new applications (services), using existing data involves changing existing applications (services). For better usage, there is a need to export data as basic services (SOA approach). Representational State Transfer (REST) works with resources instead of operations, offering full web-scale interoperability and scalability advantages while exchanging information between applications...
The paper suggests a generic model for compilation and definition of explicit parallelism in embedded computing systems (ECS), based on clustering. It also describes a rule-oriented production model of an expert system for analyzing implicit parallelism that employs a criteria-based fuzzy-set approach, the number of such criteria equal to the number of ECS modules, and also on the microprogram's memory...
Biomedical engineering employs engineering expertise in solving biological and medical problems to improve the quality of life. The paper describes the significance of combining life sciences with technology and engineering, and discusses objectives and characteristics of biomedical engineering education. Huge interest in this area and also a rapid development of relevant engineering fields provides...
This paper deals with the study of dependence of subpixel accuracy of edge detection in 1-D images on number of used samples. Our study includes four methods for edge detection with sub-pixel accuracy in 1-D images: method based on approximation of real image function with erf function, moment-based edge operator, technique using spatial moments of the image function and the method based on wavelet...
Statistical learning has recently seen an expansion of applications in different areas of science, finance and industry, as it plays a great role within the fields of statistics, data mining and artificial intelligence. Hence, it intersects with areas of engineering and other disciplines as well. It is used for both regression and classification problems. Solving these problems usually involves building/training...
In this paper, we have introduced a generalized block-lifting structure using the 2-D CORDIC algorithm as a block of 4-band linear phase paraunitary filter banks (LP PUFB) based on the quaternionic algebra (Q-PUFB) for the lossy-to-lossless image coding. A bank Q-PUFB based on the 2-D CORDIC block-lifting structure reduces the number of rounding operations and has a regular layout. Since the block-lifting...
Questions of simulation of states of equipment, which is situated on autonomous carriers and includes number of computerized units, are considered. The mathematical apparatus, which permits to construct the common cyclogram of equipment operation, is proposed. Dependencies for calculation of cyclogram parameters are obtained. The task of loading of the onboard energy source with equipment is solved...
The work analyzes technical and experimental research in the field of fire monitoring. The authors suggest the algorithms of fire detection, the identification of the seats of fire, the modeling, the determination of the spreading and the following of the fire by satellite images processing. The methodology is implemented by the creation of the intelligent telecommunication structures on the base...
State-of-the-art inverse subband transformer implementations employ significant amount of memory resources for the realization of synchronization memory banks between different levels of the composition. This paper presents a hardware realization of inverse subband transformer without synchronization memory banks between different levels of the composition. Such realization achieves significant savings...
Matching of images of different nature in the conditions of uncertainty of exact coordinates can be used for building of high-informative images in medicine, archeology transportation systems, earth remote sensing and so on. Correlated excess with an uneven node grid is offered as a solution to the problem.
Estimation of distance to real objects can be done with the help of various sensors. In some cases stereovision system is technically simpler and cheaper. Algorithms of dense stereovision allow to build highly detailed virtual terrain model, which gives opportunity to control the device in complicated relief or in dangerous surroundings. But some algorithms of dense stereovision have problems to determine...
Wireless Sensor Networks (WSNs) constitute a networking area with promising impact in the environment, health, security, industrial applications and more. Each of these presents different requirements, regarding system performance and QoS, and involves a variety of mechanisms such as routing and MAC protocols, algorithms, scheduling policies, security, OS, all of which are residing over the HW, the...
The field of mobile learning is in the process of rapid growth. While we can easily identify characteristics, which separate mobile learning from other forms of learning, a review of the academic field yielded few accepted standards, frameworks and systems, which application developers can reference when building applications. The focus of this paper is to continue the research into quality assessment...
The research study is focused on the exploration and analyses of development methodologies of e-learning software and proposes a model and a framework for approaching such development, while applied it on a particular practical application E-Learn SEEU were has been implemented and tested the proposed model as well as evaluated with the users. Analyses of the current methodologies and best practices...
E-learning usage and implementation is seen as use of a magic stick to many educators and trainers especially in the developing countries, bringing positive or great values to them and their organization. According to some researches e-learning means the use of various electronic items including information and communication technology (ICT) as a part of their training program. Learning Management...
In this paper we deal with the linear frequency modulated signals and radar signals that are affected by disturbance which is the inevitable phenomenon in everyday communications. The considered cases represent the cases when the signals of interest overlap with other signals or with noise. In order to successfully separate these signals we propose the compressive sensing method, which states that...
The data collected based on the electricity stream in a PowerSystem could be very useful information for electricity companies. This information is related to the electrical demand of the customers. The aim of this paper is to analyze and to detect the trend of electrical load consume from the customers in an area. This is achieved using the statistical approach on the data collected from the meter...
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