Data mining for large scale 3D seismic data analysis

The automation of the analysis of large volumes of seismic data is a data mining problem, where a large database of 3D images is searched by content, for the identification of the regions that are of most interest to the oil industry. In this paper we perform this search using the 3D orientation histogram as a texture analysis tool to represent and identify regions within the data, which are compatible with a query texture.     

Pre-requisites for large scale coordination

Communication is in this paper seen as the foundation for purposeful human–human activity in dynamic environments. Coordination is a central issue in large systems such as military organisations, enterprises, or rescue organisations, and communication is needed in order to achieve coordination in such systems. This paper suggest a holistic approach to control, where control in a large system is seen as an emergent product of human interaction, focusing on human–human communication from a technical, organisational, temporal, and social perspective.

Algebra manipulating programs for structural analogies

Two computer programs are described for solving sets of simultaneous equations with coefficients in the form of algebraic expressions.Both programs retain the algebraic nature of these coefficients throughout, although the methods of storage and solution are entirely different. The problems which the programs were originally designed to solve relate to regular structures, for which modular stiffness matrix equations can be written. The coefficients of these matrices are expressions of simple algebraic quantities and finite difference operators. These operators are transformed into differential operators by the programs, the output giving continuum approximations to the structures. Other applications of the programs are discussed.     

Formalized analysis of structural characteristics of large complexsystems

Macrostructural modelization is paramount to the development of large complex systems (LCS). The paper explores the macrostructural modelization of LCS in terms of a block diagram based model and a grammar based model. Firstly, the macrostructural modelization problem of LCS is formulated. Secondly, a block diagram based model is proposed and established for LCS. Specifically, two general-purpose information-processing modules are proposed and constructed, called perception cube and decision spheroid. Thirdly, a grammar based model is proposed and established for LCS through applying formal language theory to the block diagram based model. Specifically, perception cube and decision spheroid are visually represented as context-free grammars, named fusion grammar and synthesis grammar, respectively. Through a stratified constructive linkup between a stream of bottom-up growing fusion grammars and a stream of top-down growing synthesis grammars, a level of LCS is constructively defined and accordingly represented as a context-free grammar, named level grammar. Then, a whole LCS is represented as a context-free grammar through a compounding of all level grammars. Finally, a case study is presented to demonstrate the potential usability of the proposed and established models of LCS     

Modularization of large programs

This report describes a macroprocessor, ‘Supermac’, and its use for modularization of large programs. The development of the macroprocessor and its application to program modularization was undertaken in a research project sponsored by GEC Telecommunications, Coventry, and this document forms the final report of that project. The project arose from the wish to be able to structure large pieces of software, written in a conventional programming language, in order to make them more easily understood and hence more easily constructed, maintained and modified. In this report the use of the specially developed Supermac macroprocessor to achieve better structured programs will be described in detail. A full definition of the Supermac notation.     

一种大型软件测试方法

总结了一种结合功能测试和性能测试的测试方法,其中功能测试方法由功能测试流程和功能测试用例设计方法组成.性能测试方法由性能测试流程、测试工具选择、性能测试指标设计和性能调优方法组成.实践证明,该方法能够达到对大型软件进行功能和性能把关的目的.     

Calculation and characteristics analysis of blade pitch loads for large scale wind turbines

Based on the electric pitch system of large scale horizontal-axis wind turbines,the blade pitch loads coming mainly from centrifugal force,aerodynamic force and gravity are analyzed,and the calculation models for them are established in this paper.For illustration,a 1.2 MW wind turbine is introduced as a practical sample,and its blade pitch loads from centrifugal force,aerodynamic force and gravity are calculated and analyzed separately and synthetically.The research results showed that in the process of ro...     

Approximations for large scale closed queueing networks

Evaluation of closed queueing networks with product form solutions is very time-consuming if the population sizes or the network size is large. This paper provides an analysis of an approximation technique, based upon mean value analysis which requires considerably less computation time, and yet achieves a high degree of accuracy. The approximates are unique in some feasible regions. Error analysis and illustrative examples are provided.     

Video traffic analytics for large scale surveillance

The video traffic analysis is the most important issue for large scale surveillance. In the large scale surveillance system, huge amount of live digital video data is submitted to the storage servers through the number of externally connected scalable components. The system also contains huge amount of popular and unpopular old videos in the archived storage servers. The video data is delivered to the viewers, partly or completely on demand through a compact system. In real time, huge amount of video data is imported to the viewer’s node for various analysis purposes. The viewers use a number of interactive operations during the real time tracking suspect. The compact video on demand system is used in peer to peer mesh type hybrid architecture. The chunk of video objects move fast through the real time generated compact topological space. Video traffic analytics is required to transfer compressed multimedia data efficiently. In this work, we present a dynamically developed topological space, using mixed strategy by game approach to move the video traffic faster. The simulation results are well addressed in real life scenario.     

A structural testing method for JSP designed programs

A new structural testing method (STM) is presented for use with JSP (Jackson structured programming) designed programs. The method involves the creation of a path expression from the program structure and subsequent expansion of the expression into a set of paths using an algebra described in the paper. The treatment of each JSP construct is dealt with in detail. A worked example demonstrates the use of the method to generate test cases. The method is compared in terms of coverage to other well-known structural testing methods. The advantages and disadvantages of the method are discussed and further work currently being undertaken by the authors is outlined.     

大规模地形的LOD生成算法研究

为了实时地绘制大规模地形数据,提出了一种改进的实时连续LOD生成算法.该算法采用分块分层的思想,首先将大规模高程数据进行分块,然后对块中数据按照分辨率的大小分层存储.根据视点位置和网格空间对象误差的关系建立基于四叉树的LOD模型,从而提高了大规模地形的绘制效率.使用该方法描述了太湖流域的地形,取得了良好的绘制效果.     

A modification of I-SOS: performance analysis to large scale functions

Applied Intelligence - SOS is a global optimization algorithm, based on nature, and is utilized to execute the various complex hard optimization problems. Be that as it may, some basic highlights...     

TRIPOS—a portable operating system for mini-computers

There are several successful operating systems for mini-computers written in high level languages and the time is now ripe for the development of portable systems for such machines. The system described in this paper is primarily designed to provide a friendly interactive multiprocessing environment for a single user. From his point of view, substantial parts of the system are completely machine independent. These include, for instance, the filing system, the command language, text editors, overlaying facilities and interprocess communication primitives. The system is suitable for many different application areas ranging over process control, data acquisition, data communication, text handling, data base systems and teaching.