查询词典 Shannon

Limitations of Shannon's information theory and information definition are analyzed from new angles. It is pointed out that they didn't consider the reliability, completeness and other characteristics of information, and the naming of conditional entropy is not proper. The correct naming of Shannon's "conditional entropy" should be weighted average conditional entropy. Examples are given to illustrate the conditional entropy maybe increased, so Shannon's definition of information is not absolutely correct.

从新的角度指出了香农信息论和信息定义的局限性，指出了它没有考虑信息的可靠性，完备性等特点，指出条件熵的命名不恰当，香农的"条件熵"应该称为加权平均条件熵，并且举例证明了条件熵可能增加，进而香农信息定义中的不确定性的减少也不是绝对的。

Cleome spinosa bee drunk Shannon Shannon, Sally suddenly suspect that the rural dream.

醉蝶蜂醉香农，萨利突然间受到了怀疑，农村的梦想。

Information theory and coding, right Shannon source coding theorem simulation, verification of the Shannon coding theorem.

信息论与编码中，对香农信源编码定理的仿真，验证了香农编码定理的可行性。

The main topics include entropy and mutual information, data compression, noiseless coding, Shannon theorem, noiseless coding, Shannon Theorem, linear codes, cyclic codes.

本课程宗旨是简介基础的资讯理论，主要课程含嫡及相互信息、资料压缩、无杂讯编码及Shannon定理、线性码、循环码等。

The topics covered include the basic concepts of information theory--entropy, mutual information, channel capacity, information rate, Shannon's noiseless coding theorem and Shannon's fundamental coding theorem; modeling of information sources--zero-memory and Markov models; modeling of information channels--BSC and BEC channels, additivity of information and cascaded channels; construction of compact source codes--Kraft inequality, compact codes, Huffman and LZW compression codes; and analysis and design of error-control channel codes--Hamming distance, binary linear codes and the parity-check matrix, Hamming codes, checksum codes, cyclic codes and the generator polynomial and CRC codes.

课程的内容包括：信息论的基本概念（熵、交互信息、信道容量、信息率、 Shannon无噪声编码定理和Shannon基本编码定理）、信源模型（无记忆模型和Markov模型）、信息信道模型（BSC 和 BEC模型、信息的可加性和级联信道），紧致信源编码设计（Kraft不等式，紧致编码，Huffman 和LZW压缩编码）以及差错控制信道码的设计与分析（海明距离，二元线性码，奇偶校验矩阵，海明码，校验和，循环码，生成多项式和CRC码）。

Based on RAPD data, Nei's gene diversity index averaged 0.2523 and Shannon's information index averaged 0.3730, while Nei's gene diversity index averaged 0. 252 3 and Shannon's informative index averaged 0.3958 based on DOGE data.

结果表明：RAPD分子标记显示不同浓度废水驯化的细菌群落的Nei's指数平均为0.252 3，Shannon's信息指数平均为0.373 0；而采用DGGE技术得到不同浓度废水驯化的细菌群落的h平均为0.252 3，I平均为

From the change of Shannon's Diversity Index and Shannon's Evenness Index, we know that the diversity of landscape and the Interspersion Juxtaposition Index increase.

从香农多样性指数和香农均度指数的变化可以看出，景观的多样性增加，且均度增强。

Across the altitudinal gradient, a total of 12635 individuals belonging to 6 phyla, 15 classes and 33 orders were collected. With increasing altitude, the density of soil fauna decreased, but the group number was less affected. There was a higher co-occurrence of soil faunal communities along the altitudinal gradient, and Nematoda, Acarina, and Collembola were the dominant groups. Below the altitude 370 m, the Shannon-Wiener index, Pielou index, and Margalef abundance index increased with increasing altitude; while above the altitude 370 m, the Shannon-Wiener index and Pielou index decreased but the abundance index increased after an initial slight decrease.

结果表明：土壤动物密度随海拔升高而下降，类群数受海拔影响较小，各海拔群落的共有度较高，优势类群基本均为线虫、蜱螨目和弹尾目；Shannon-Wiener指数、Pielou均匀度指数及Margalef丰富度指数仅在海拔370 m以下随海拔升高而增加，而在海拔370 m以上，Shannon-Wiener指数与Pielou均匀度指数下降，丰富度指数在略有下降后再次上升。

To enhance the grade of products, product image and culture, processing plants in the new product development, adhere to market-oriented, for different consumer groups, the timely development of new products, research and development of the five series, more than sixty kinds of products -- Xiang ---- Ocean seafood seasoning series (wild dried small shrimps, high-quality dried shrimps, shrimp do the Bohai Sea, Pa do eat shrimp, dried seaweed, razor clam do, dried octopus, clams do, whitebait, etc.); Sea Boutique Cheung salted fish series (the wild horse population of fish, wild white fish, Bohai Qingpi fish, wild mullet, Pakistan fish, silver needle fish, anchovies,); Sea brine Cheung bad series (canned jellyfish, and shrimp paste, grasshopper sub sauce, Salted shrimp, shrimp paste hair, hanging halogen Shannon crab, brine shrimp Pa Shannon,×í·,×í, drunk Bullacta, Ziziphus jujube drunk, etc.).

为提高产品档次、产品形象和文化内涵，加工厂在新产品的开发上，坚持以市场为导向，面向不同消费群体，适时开发新产品，研制开发的五大系列，六十余种产品------海之翔调味海产品系列(野生虾皮、优质海米、渤海对虾干、干吃扒虾、干海带、蛏干、风干八带鱼、蛤干、银鱼等)；海之翔精品咸鱼系列（野生马口鱼、野生白磷鱼、渤海青皮鱼、野生梭鱼、巴鱼、银针鱼、凤尾鱼、）；海之翔卤糟系列（罐装海蜇、对虾酱、蜢子酱、盐渍虾、毛虾酱、吊卤香蟹、卤香扒虾、醉蟹、醉虾、醉泥螺、金丝醉枣等）。

In better management lawn community Geranium sibiricum, Potentilla anserine and Leymus secalinus are the dominant weeds all the time and Geranium sibiricum is the most dominant weed.The regular pattern of Shannon-Weinor index of turf weeds in three different management lawn communities is that in worse community maximum Shannon-Weinor index appears in spring and fall but in better community is in late-summer and primary-fall.

三种管理水平不同的草坪群落中杂草的多样性指数变化规律是，管理水平较差和一般的草坪群落中，杂草的香农-威纳指数的最大值出现在春季和秋末；管理水平较好的草坪群落中，杂草的香农-威纳指数的最大值出现在夏末秋初。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？