一种基于交织重组和星座重组的Type-Ⅱ型混合ARQ方案

为提高系统的通过率及译码效率,高速可靠数据传输系统采用混合ARQ方案。本文提出了一种基于交织重组和星座重组的混合ARQ方案,分析了系统的通过率、误帧率及重传时延。通过仿真说明本方案可获得较大的通过率增益,减小重传延时,提高了系统的传输可靠性。     

Analysis on regional disparity of economic development in China based on DEA

The economy of China has been developing fast after the beginning of the new century, but the 31 provinces or municipalities （excluding Hong Kong, Taiwan and Macao） develop disparately. So, finding an appropriate way to analyze and compare the economic situations of various regions is of great significance for the balanced development of the east coastal area and the hinterland. With the DEA method, on the basis of regionalism, this paper analyzes various regions of China, and gets the conclusion that the effective proportion of DEA of the coastal developed areas is relatively higher, and the extremely tittle foreign investment makes the relative efficiency of DEA of frontier areas pretty high. In addition, through the analysis parameters of the regions where DEA is relatively ineffective, this paper points out that the surplus labor force is the most influential factor, and the spare foreign investment is the main reason for the lack of efficiency of relatively developed regions.     

巴塞尔新资本协议指导下的我国银行内部评级法构建

巴塞尔新资本协议内部评级法(Internal rating-based approaches,IRB)的引入是新资本协议的重大突破之一。建立内部信用评级体系是适应新的监管要求的必然趋势。本文分析了我国银行业引入内部评级法的原因和在引入过程中存在的一系列问题,提出了实施IRB规划的建议框架。     

数据挖掘在证券交易系统分析中的应用

本文以沪深证券市场的公开数据和部分实时券商交易数据为基础,应用数学集合论、博弈学习论和金融微观结构理论与计算机信息系统相关概念,提出了金融市场数据挖掘的合并算法,并分别讨论了数据挖掘在序列模式、关联分析、聚类分析、偏差检测、进化遗传模拟五方面的应用。     

矿业权价款的属性及确定方法探讨

本文从立法背景、立法目的、管理和法理基础等方面 ,以及与矿业权价值的对比分析 ,对矿业权价款的属性进行了探讨 ,认为矿业权价款是国家作为地勘投资人权益的体现 ,反映矿产勘查投资的平均利润 ,进而提出了矿业权价款的确定方法。     

Comparing mean efficiency and productivity scores from small samples: A bootstrap methodology

This paper provides a bootstrap methodology for constructing confidence intervals for means of DEA and econometrically estimated efficiency scores, Malmquist productivity indices, and other similar measures in small samples. The procedure is nonparametric since no distributional assumptions are required. An empirical example is provided.This research was performed while Wilson was under contract with the Management Science Group, US Department of Veterans Affairs, Bedford, MA 01730.     

Evaluating Productivity Growth Measures in the EU

In this paper we evaluate the productivity growth of the member countries in the European Union (EU) before and after the enforcement of the Maastricht convergence criteria in 1992. Total factor productivity was measured by employing the growth-accounting approach and Tornqvist indices. The evaluation of productivity growth was performed by employing the non-parametric method of Data Envelopment Analysis (DEA) in particular years and within three time periods. DEA was also used to evaluate the relative efficiency of EU members with respect to the convergence criteria with important implications for their economic integration. TFP growth was found to have contributed the most in the EU, while its share in the latest recessions was the smallest as compared to labor and capital share.     

矿山环境审计浅析

环境审计自20世纪70年代在发达国家的一些企业自发产生,直到1992年联合国召开环境与发展大会后才得以广泛开展,并形成了环境审计的理论框架和操作体系。矿山环境审计在发达国家备受关注,因为矿业的发展给生态环境带来了一系列负面影响。我国矿山环境审计基本处于空白状态。为实现我国可持续发展战略,有必要借鉴发达国家矿山环境审计的理论和实践经验,重点开展矿山企业的内部环境审计和外部环境审计工作。     

C++中数据共享的实现机制

在程序设计中如何实现不同的函数模块之间的数据共享，是程序设计中的关键技术问题。本文以C 为例，详细阐述了面向对象程序设计中各种方式数据共享的实现机制。     

A systematic approach for identifying technology opportunities: Keyword-based morphology analysis

Morphology analysis (MA), a representative qualitative technique in technology forecasting (TF), has been utilized to identify technology opportunities. However, conventional MA is subject to limitations in that there is no scientific or systematic way in establishing the morphology of technology, and it is difficult to prioritize the alternatives. As a remedy, we propose a keyword-based MA that is supported by a systematic procedure and quantitative data for concluding the morphology of technology. To this end, a technology dictionary is developed by factor analysis for keywords that are extracted from patent documents through text mining. Then, the morphology of patents is identified based on the technology dictionary. By listing the occupied configurations of collected patents, the unoccupied territory of configurations are suggested as technology opportunities. Moreover, the priority of alternatives is concluded, and similar and substitutive technologies can be analyzed for the purpose of extending morphology structure. Technical and managerial strategy for in-house R&D or cross-licensing can also be supported by examining the morphology portfolio of technologies. A thin film transistor-liquid crystal display (TFT-LCD) case is exemplified to illustrate the detailed procedure of this brand-new MA.