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The purpose of data mining is to explore, find and hence analyze relevant data from a massive data source using various technical means. This paper introduces the development of data mining to date, its functions, tasks and algorithms, as well as the process of data mining. The application and problems of data mining are also presented and finally the potential future development of data mining technology...
To enhance the safety and efficiency of civil aviation, special attentions should be paid to pilot’s physical and mental health. Existing works used video monitoring and social network mining to find the potential anomalies in pilot’s daily life. However, video monitoring suffers from the privacy problems and social network mining is computational complex. To solve the problems of existing works,...
Considering the current situation of the data on oil and gas resources in China, which is relatively multi-sourced, heterogeneous and decentralized, as well as the actual demand of OLAP, MVC model is employed as the system constructing model. Besides, ODBC and XML technology are combined to achieve dynamic mapping on database connection. Thus the National Petroleum Resource Database ETL System which...
This paper uses the data warehouse technology to do spatial data warehouse modeling and development for the National Petroleum Resources Database, complete multi-dimensional data storage and integrated cluster processing with Cube, achieve information extraction and decision-making advice with the multidimensional analysis and OLAP analysis tools. Through elaborating and analyzing the key problems...
Log data is critical to applications and the management and analysis of log data is a hot research topic. Existing log managements are normally tightly integrated with applications themselves, which may lead to problems including performance, local storage efficiency, security and non realtime functionality. To solve these problems, we present a SaaS method which shifts writing log data from local...
To achieve flexible support for multi-channels supplied by remote monitor system and to implement hybrid transmission mode, this paper designs and introduces a mechanism of data transmitting buffer queue, which is with multiple priorities processing. The mechanism is composed of data input queue facing to upper layer and data output queue facing to diverse communication channels and it contains retransmission...
The paper adopts the method and the strategy of distributed coordinated control, considering the traffic flow of the adjacent intersections and the road status between them generally, make a real time control to the traffic signal of each intersection. According to the character of traffic system for urban multi-intersections, this method based on single intersection abandons unified signal cycle...
Event related potentials (ERPs) were used to examine the processing of literal idioms and metaphoric idioms. We compared the patterns of brain electrical activity elicited by processing four-character expressions denoting literal, conventional metaphoric meaning. Participants performed a yes-no judgment task in which they decided whether each idiom conveyed a metaphoric meaning. N400 amplitude after...
Monthly investigation is executed during April 2006 to May 2007, focusing on the abundance and composition of phytoplankton in a large (300 km2) shallow (mean depth 4.4 m) eutrophic lake (Lake Dianchi). The presence of phytoplankton in northern bay was the highest, while that in the southern part the lowest, and center part and northern part conditions represented an intermediate state between these...
The operation of enterprise quality credit classified supervision was the core operation of enterprise quality credit information data system. By expounding the system structure of B/S model, the system development thought based on B/S model was been brought forward. Moreover, the system operation description, function description, data description and subsystem partition was been analyzed. The design...
Based on detailed expatiation of system development model, the development model and its structure of model driven architecture (MDA) was been discussed according to the development traits of enterprise quality credit information system. Combined with system operation content, the system function framework was been built to form the MDA-based system developing process. Moreover, taking the evaluation...
This paper proposes a fuzzy-logic-based rate adaption scheme named FRA in order to enhance the smoothness of TCP-friendly multicast congestion control (TFMCC). To alleviate oscillation of sending rate for TFMCC sender, FRA introduces five actions for adjusting rate and uses a fuzzy controller to decide which action should be taken according to the feedback information from CLR (current limiting receiver)...
OSEK/VDX is an important specification in the field of automotive electronics and OSEK COM specifies the data communication behaviors inter-ECU and intra-ECU, but doesn't appoint specific underlying layer. In this paper,OSEK COM is implemented based on CAN bus. We present a model that dynamically generates properly CAN identifier to schedule I-PDUs of OSEK COM and transmit data that is longer than...
Aiming at the multi-intersections of the urban traffic trunk line, a coordination control by sections is brought forward. The proposed algorithm includes three key steps. Firstly, according to the relativity of each two or three natural intersections on the trunk line, a new intersection is generated, which is thought of as an independent control unit. Some intelligent algorithms are adopted to acquire...
Binary relations and its operations are important in set theory. But traditional research mainly focuses on pure mathematics operations on set theory. Pansystems strengthen the research work in set theory by combining mathematics with its philosophical background. In this paper, using pansystems PMT-combination method, we re-inspect the philosophical background of binary relations and give a new interpretation...
The world is divided according to different scales. When we face a problem, we usually look into the problem from different perspective and then find out the solution. The different perspectives are actually different ways of measuring the object from various measurements. To change perspectives over an object is an important ability of our human beings, while it is usually not very easy for us to...
This paper present a direct adaptive fuzzy approach for a class of single-input-single-output (SISO) unknown non-affine nonlinear systems. A fuzzy logic system (FLS) is employed to approximate unknown plant nonlinearity. To update the adjustable parameters in FLS, a modified projection gradient algorithm is proposed which combines the advantage of projection gradient adaptive law and sigma - modification...
Data mining in electronic medical records may facilitate clinical research, but much of the structured data may be miscoded, incomplete, or non-specific. The exploitation of narrative data using natural language processing may help, although nesting, varying granularity, and repetition remain challenges. In a study of community-acquired pneumonia using electronic records, these issues led to poor...
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