抽取

SRC in SDR is also discussed, and two improved structures of CIC filter are presented. The first one is a CIC decimation filter based on polyphase structure and partially sharpening technique, which is suitable for the situation where the requirements in passband attenuation is not very high while the requirements in alias suppression and operating speed are relatively high. The other one is an improved CIC-Rotated Sinc decimator which possesses improved frequency response, low operating rate and low cost in hardware as well.

研究了软件无线电中的采样率转换技术，给出两种改进的CIC滤波器结构；(1)基于多相结构和部分尖锐化的CIC抽取滤波器，该结构适用于通带衰落要求不是很高，混迭抑制和滤波速度的要求相对较高的场合(2)一种改进CIC-Rotated Sinc抽取滤波器，该结构在获得好的通阻带特性的前提下，一方面降低了整个CIC滤波器结构的工作速率，另一方面尽可能地降低硬件实现的复杂度。

A programmable decimation and interpolation ratio module onnected with multistage cascade integrator comb filter is designed to implement high efficient decimator and interpolator.

将可编程抽取、插值器与多级积分梳状滤波器相配合，实现高效数字抽取和插值模块。

The robustness of different extraction rules is discussed and the key element of constructing robust Wrapper is introduced. Extraction rules extract the information from web page into the destination schema, however, this is not enough, and the Web information extraction still has many new challenges.

抽取规则只解决了从Web页面抽取出数据至目标模式的问题，然而在互联网环境下，Web信息集成面临许多新的挑战。

Then,the edge surfaces lost during the de-noising step are recovered based on the connectivity of edge surfaces.

实验结果表明，文中算法克服了边缘曲面抽取算法抽取的边缘曲面有洞的缺陷。

Two methods of picking up the examination paper s is discussed and compared.

从结构化和非结构化两种不同的类型对题库结构进行了分析，讨论了随机抽取和事先设定两种抽取试卷的方式，并比较了它们之间的优缺点。

Before treatment all patients were hemospasia detected peripheral lipid and hemorheology in early morning;treatment group was given Chinese medicine of eliminating phlegm and stasis,after two weeks they were hemospasia detected peripheral lipid and hemorheology in early morning again.

入院后治疗前均晨起空腹抽取外周静脉血检测血脂六项及血液流变学；治疗组服用祛瘀化痰中药2周后再次晨起空腹抽取外周静脉血检测血脂六项及血液流变学。

In this paper,the design and the implementation of a rule induction based IE system is presented for automating Web information retrieval by DOM parsing and rules for retrieval,extraction and mapping.

通过文档对象模型解析以及检索、抽取、映射等规则的定义，设计并实现了一种具有规则归纳能力的信息抽取系统，用于Web信息的自动检索。

In this framework for rule induction,the authors particularly focus on the experiments with the WHISK algorithm for generating patterns.Experimental results show that the system performs well on both single-slot and multi-slot extraction tasks.

在用于抽取规则归纳的框架下，还重点对用于生成抽取模式的WHISK学习算法进行了实验对比分析，结果表明系统对于单槽和多槽数据都具有不错的归纳学习能力。

On features selection, a features selection algorithm based on rule induction is proposed. Solve some flaws in divide and conquer strategy like algorithm used by Cohen, such as induced rules are not very precise, the latter rules generation lacking enough statistical support and the rule easy to be immature.

在特征属性的抽取方面，提出了一个基于规则推理的属性抽取算法，解决了Cohen采用分而治之策略的算法中的一些缺陷，如推导出的规则不够精确、后续规则生成缺乏足够的统计支持以及易引起规则的早熟等。

Event Extraction is a new research point in the area of Information Extraction.

事件抽取是目前信息抽取研究领域的一个新的重要的研究课题。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。