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书籍 Communications+Receivers
The capability of radio waves to provide almost instantaneous distant communications
without interconnecting wires was a major factor in the explosive growth of communica-
tions during the 20th century. With the dawn of the 21st century, the future for communi-
cations systems seems limitless. The i ...
技术资料 基于矩阵伪投影策略的频繁项集挖掘方法
挖掘频繁项集是数据挖掘应用中关键的问题。经典的FP-growth 算法利用FP-tree 有效的压缩了数据集的规模，但是在挖掘过程中需要反复递归构造条件FP-tree 成为限制算法效率的瓶颈。
技术资料 企业网络安全关键技术研究
为发挥各种网络安全技术联合优势，提出基于日志的联动控制，采用FP-growth算法挖掘关联规则频繁项集，并对该算法进行优化，实现联合检测和防御，增强了企业网络的抗攻击和抵御威胁能力。此外，鉴于
数学计算 在数据库中发现频繁模式和关联规则是数据挖掘领域的最基本、最重要的问题。大多数早期的研究采用了类似Apriori算法的产生候选级并测试迭代的途径代价是昂贵的
在数据库中发现频繁模式和关联规则是数据挖掘领域的最基本、最重要的问题。大多数早期的研究采用了类似Apriori算法的产生候选级并测试迭代的途径代价是昂贵的，尤其是挖掘富模式和长模式时，Jiawei Han提出了一种新颖的数据结构FP_tree,及基于其上的FP_growth算法，主要用于有效的进行长模式与富模式的挖掘.本文在讨论了FP_ ...
书籍 Reconfigurable+Mobile+Radio+Systems
Digital mobile wireless communication and the Internet have undergone a
fantastic growth in the last few years and, despite originating from two different
worlds, they are converging. This convergence corresponds to the evolution of
mobile systems towards the highest broadband data transmissions (GS ...
书籍 Contamination+and+ESD+Control
Contamination and electrostatic discharge (ESD) are now becoming recognized as factors
affecting yield and reliability in an ever-increasing number of industries. Whereas contam-
ination traditionally was recognized as affecting the semiconductor, disk drive, aerospace,
pharmaceutical, and medical d ...
技术资料 时兴频集挖掘算法的辨析
研究了当前几种时兴的频集挖掘算法（Apriori，DF，FP－growth 和DCI）及其技术特点，并对其分类和界定适用范围。对其算法复杂性及时空执行效率等性能指标进行了定性和定量的综合分析。研究的结
技术资料 改进的Eclat 数据挖掘算法的研究
本文针对两种常用的频集算法Apriori 和FP-growth，指出了它们各自的优缺点。数据库的表示方法主要有两大类:水平数据表示和垂直数据表示。通常，采用垂直数据表示的算法的性能优于采用水平
数学计算 Origin 拟合曲线教程 Contents 1. ORIGIN BASIC FUNCTIONS 2. CHROMATOGRAPHY FUNCTIONS 3. EXPONENTIAL FU
Origin 拟合曲线教程
Contents
1. ORIGIN BASIC FUNCTIONS
2. CHROMATOGRAPHY FUNCTIONS
3. EXPONENTIAL FUNCTIONS
4. GROWTH/SIGMOIDAL
5. HYPERBOLA FUNCTIONS
6. LOGARITHM FUNCTIONS
7. PEAK FUNCTIONS93
8. PHARMACOLOGY FUNCTIONS
9. POWER FUNCTIONS
10. RATIONAL FUNCTIONS140
11. SPECTROSCOPY FUNCTIONS155
12 ...
书籍 Attachment+Transmission+in+Wireless+Networks
Wireless penetration has witnessed explosive growth over the last two decades.
Accordingly, wireless devices have become much denser per unit area, resulting
in an overcrowded usage of wireless resources. To avoid radio interferences and
packet collisions, wireless stations have to exchange control ...