In information theory, "information" is regarded as knowledge which reduces or removes(71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For inst

题目

In information theory, "information" is regarded as knowledge which reduces or removes(71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For instance, an event may be the occurrence of a(72) character or word in a given message or in a given position of a message.In communication theory, channel is defined as that part of a communication system that connects the message source with the message sink. An encoder may be inserted between the message source and the input to the channel, and a(73) between the output of the channel and the message sink. Generally, these two units are not considered as being parts of the channel. In certain cases, however, they may be considered as pans of the message source and message sink,(74) In information theory(75) to Shannon, the channel can be characterized by the set of conditional probabilities of occurrence of all the messages received at the message sink when a given message emanates from the message source.

A．uncertainty

B．unreliability

C．randomness

D．inconsistency

相似考题

1.A scientist is informing techs. about a new product which is starting and the type of work that the lab techs. will be expected to do. The barriers which could hinder the lab techs. ability to filter the information include all of the following except:A language and semanticsB culture and ethicsC intelligence and knowledge baseD reputation, authority, organizational status and positionE relative location of the lab to the scientist's office

2.It is implied in the last paragraph that_________ .A． people who possess information will have more material advantage and be more wealthB． the ability to read and write will not be as the knowledge of computersC． information or knowledge will be more important in manufacturing than in servicesD． people with information or knowledge will be the potential creator of wealth in the new era

3.● The （71） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.（71）A. applicationB. information systemC. operating systemD. information processing

4.A line manager possesses information which the project team needs, but withholds the information. The results in a(n):A BlindspotB FacadeC region of influenceD Communication power baseE None of the above

更多“In information theory, "information" is regarded as knowledge which reduces or removes(71) ”相关问题

  • 第1题：

    His ideas are linked to the theory________markets are efficient, which means market actors taking all available information to create the correct price for things at any given time.

    A which ;

    B who ;

    C that


    参考答案:C

  • 第2题：

    ● Information is no good to you if you can't（71）it． The location dimension of information means having access 'to information no matter where you are．Ideally in other words, your location or the information's location should not matter． You should be able to access information in, a hotel roots; at home; in the student center of your camp, at work, on the spur of the moment while walking down the street; or even while traveling on an airplane．This location dimension is closely, related to (72) and wireless computing (and alsoubiquitous computing)．

    To keep certain information private and secure while providing remote access for employees; many businesses are creating intranets. An intranet is an (73) organization internet that is guarded against． outside access by a special（74）feature called a Firewall (which can be software,hardware,or a combination of the two)． So, if your organization has an intranet and you want to access information on it while away from the office, all you need is Web access and the password that will allow you (75) the firewall．

    (71) A．access B．make C．learn D．bring

    (72) A．data B．program C．mobile D．information

    (73) A．inside B．external C．inner D．internal

    (74) A．safe B．safety C．security D．secure

    (75) A．pass B．through C．across D．cross


    正确答案：A,C,D,C,B

  • 第3题：

    Whenever new information is entered, it must be stored somewhere in the computer's(70). RAM only(71)the data temporarily. That is, all information stored in the RAM will disappear if you switch the computer off.

    A．processor

    B．keyboard

    C．printer

    D．memory


    正确答案：D
    解析：译文：新数据输入电子计算机时，一定存放于计算机存储器中。

  • 第4题：

    What information is found in the chart title?

    A.Date of the first edition

    B.Date of the edition and，if applicable，the revision

    C.Information on the sounding datum

    D.Information on which IALA buoyage system applies


    正确答案：C

  • 第5题：

    Which of the following does a teacher want his/her students to develop if he/she asks them to collect relevant information about ancient Rome.

    A.Culture awareness
    B.Language awareness
    C.Learning strategies
    D.Language knowledge

    答案：A
    解析：
    本题考查新课标

    A选项，题意：老师让学生搜集关于古罗马的相关信息主要是为了培养学生的文化意识。综上，A选项正确。

    B选项，语言意识，故排除。

    C选项，学习策略 ，故排除。

    D选项，语言知识 ，故排除。

    故正确答案为 A项。

  • 第6题：

    Which of the following can be regarded as a communicative language task?

    A．Information-gap activity.
    B．Dictation.
    C．Sentence transformation.
    D．Blank-filling.

    答案：A
    解析：
    考查交际性语言活动。信息差活动(Information-gap activity)以使学生进行信息的传递和交流，实现真正交流的目的．培养学生的综合语言运用能力．是一种任务型的语言交际活动。

  • 第7题：

    In modern linguistics, speech is regarded as more basic than writing, because （）

    • A、in linguistic evolution, speech is prior to writing
    • B、speech plays a greater role than writing in terms of the amount of information conveyed
    • C、speech is always the way in which every native speaker acquires his mother tongue
    • D、All of the above

    正确答案:D

  • 第8题：

    Management of Information is one of the seven requirements in Global minimum essential requirements（GMER）in medical education， which requires a medical practitioner to be able to（）

    • A、search，collect，organize and interpret health and biomedical information from different databases and sources.
    • B、retrieve patient-specific information from a clinical data system.
    • C、use information and communication technology to assist in diagnostic，therapeutic and preventive measures，and for surveillance and monitoring health status.
    • D、understand the application and limitations of information technology.

    正确答案:A,B,C,D

  • 第9题：

    单选题
    The purpose of the passage is to _____.
    A

    enlarge our knowledge of the plants

    B

    provide latest information on plant usage

    C

    introduce a successful project concerning a plant

    D

    emphasize the importance of rare plant preservation


    正确答案： D
    解析：
    本文介绍的是一个研究小组成功地利用两千年前的种子种出海枣树的试验。

  • 第10题：

    多选题
    What are the two benefits of graceful restart？（）
    A

    Graceful restart allows session information recovery without disruption to the network.

    B

    A node can perform a graceful restart to help a neighbor recover its state. The label bindings are kepton state information， which helps the failed node recover faster and does notaffect the current for wardtraffic.

    C

    Graceful restart allows a node to recover state from its neighbor when there is no RP or before thedevice undergoes SSO.

    D

    Graceful restart does not allow session information recovery.

    E

    During a graceful restart， the router removes any stale prefixes after a timer for stale entries expires


    正确答案： B,D
    解析： 暂无解析

  • 第11题：

    单选题
    In modern linguistics, speech is regarded as more basic than writing, because （）
    A

    in linguistic evolution, speech is prior to writing

    B

    speech plays a greater role than writing in terms of the amount of information conveyed

    C

    speech is always the way in which every native speaker acquires his mother tongue

    D

    All of the above


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following activities would help students develop the skill of extracting specific information?
    A

    Infering meaning from the context

    B

    Reconizing the author’s belief and attitudes.

    C

    Using information in the reading passage to make hypotheses

    D

    Listening to the flight information to see if the plane in on time!


    正确答案： D
    解析：

  • 第13题：

    Artificial intelligence (AI) ,an interdisciplinary field, is usually regarded as a branch of computer science, dealing with models and systems for the performance of functions generally associated with human intelligence, such as(71)and learning.In AI, knowledge-based system is an information(72)system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base. Moreover, some knowledge-based systems have learning capabilities. Expert system (ES) indicates the knowledge-based system that provides for solving problems in a particular domain or application area by drawing inferences from a knowledge base developed from human(73). Some expert systems are able to(74)their knowledge base and develop new inference rules based on their experience with previous problems. The term "expert system" is sometimes used(75)with "knowledge-based system", but should be taken to emphasize expert knowledge.

    A．inferring

    B．reasoning

    C．deriving

    D．proving


    正确答案：B

  • 第14题：

    The(71)has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.

    A．application

    B．information system

    C．operating system

    D．information processing


    正确答案：C
    解析：操作系统包含以下主要部件：系统内核、内存管理系统、文件管理系统、设备驱动程序和系统库。

  • 第15题：

    ●Information (71) involves all the operations of an office.

    (71)A. record

    B. processing

    C. input

    D. output


    正确答案：B

  • 第16题：

    Which of the following can be regarded as a communicative language task?__________

    A．Information-gap activity.
    B．Dictation.
    C．Sentence transformation.
    D．Blank-filling.

    答案：A
    解析：
    考查交际性语言活动。信息差活动(Information-gap activity)是指通过设置活动，持不同信息的双方为了了解对方的信息，产生交流的愿望和想法，从而通过交际手段、交换信息等完成任务，是交际语言任务的一种，故选A。

  • 第17题：

    Which of the following does a teacher want his/her students to develop if he/she asks them to collect relevant information about ancient Rome.

    A.Culture awareness
    B.Language awareness
    C.Learning strategies
    D.Language knowledge

    答案：A
    解析：
    本题考查新课标
    A选项，题意：老师让学生搜集关于古罗马的相关信息主要是为了培养学生的文化意识。综上，A选项正确。
    B选项，语言意识，故排除。
    C选项，学习策略 ，故排除。
    D选项，语言知识 ，故排除。
    故正确答案为 A项。

  • 第18题：

    （ ）concerns a cycle of organizational activity:the acquisition of information from one or more sources,the custodianship and the distribution of that information to those who need it,and its ultimate disposition through archiving or deletion.

    A.Data management
    B.Information management
    C.Content management
    D.Knowledge management

    答案：B
    解析：
    信息管理涉及组织活动的一个循环：从一个或多个来源采集信息，将信息的保存并发布给需要的人，并通过归档或删除进行最终的配置。

  • 第19题：

    In terms of information literacy， an information literate student is able to（）

    • A、determine the nature and extent of the information needed and access needed information effectively and efficiently.
    • B、evaluate information and its sources critically and incorporate selected information into his or her knowledge base and value system.
    • C、use information effectively to accomplish a specific purpose individually or as a member of a group.
    • D、understand many of the economic，legal，and social issues surrounding the use of information and access and use information ethically and legally.

    正确答案:A,B,C,D

  • 第20题：

    What information is displayed by the command cat/proc/dma？（）

    • A、 whether DMA is enabled
    • B、 which DMA channels are in use
    • C、 which DMA mode is in use
    • D、 general information about DMA on the machine

    正确答案:A

  • 第21题：

    单选题
    What information is displayed by the command cat/proc/dma？（）
    A

     whether DMA is enabled

    B

     which DMA channels are in use

    C

     which DMA mode is in use

    D

     general information about DMA on the machine


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Information theory is related to the quantification of information. This was developed by Claude E. Shannon to who found fundamental limits on ( ) operations such as compressing data and on reliably storing and communicating data.
    A

    signal

    B

    data

    C

    information

    D

    signal processing


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    What information will a distress alert contain?（）
    A

    nature of distress

    B

    type of assistance required

    C

    course and speed and time at which the information was recorded

    D

    A, B, C are all right


    正确答案： B
    解析： 暂无解析

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