Recent Changes

Thursday, March 10

  1. page AI and Expert Systems edited ... >THEN there is suggestive evidence that the Cryptococcus is not one of the organisms that m…
    ...
    >THEN there is suggestive evidence that the Cryptococcus is not one of the organisms that might be causing the infection.
    IF...THEN rules are not the only for in which knowledge is stored in an expert system’s knowledge base. There are other forms however the essential nature of expert systems is applying DEDUCTIVE methods.
    ...
    an explanatory user interface that
    The knowledge engineer has to be very skilled in identifying rules when gathering information from the expert. Also experts’ rules and knowledge may conflict, not only across experts but also even in the same expert. Resolving such clashes is also a part of a knowledge engineer’s task.
    Storage requirements for common-sense knowledge
    ...
    Knowledge base
    The knowledge base is the part of the expert system that contains all the facts and information that it needs to give solutions and solve problems.
    ...
    those facts. The
    Some rules are straight-forward, for example, if salary is great than $50,000 then add income tax of 15% whereas some rules are heuristic (rule of thumb), for example if 'red meat for dinner, then select red wine'.
    The
    facts are
    ...
    in categories. An
    An
    expert system’s
    There are two types of knowledge bases:
    Machine-readable knowledge bases store knowledge in a computer and they usually have automated deductive reasoning applied to them. They contain a set of data, which often comes in rules that describe the knowledge in a logically consistent manner.
    ...
    her current problemproblem. An example of this may be the Microsoft online Help System.
    Inference engine
    An inference engine is a computer program that tries to derive answers from a knowledge base. It is the "brain" that expert systems use to reason about the information in the knowledge base for the ultimate purpose of formulating new conclusions. Inference engines are considered to be a special case of reasoning engines, which can use more general methods of reasoning.
    An inference engine selects the next rule to apply & ensures consistency in that the same outcome would be derived if same information input.
    In simple rule-based systems, there are two kinds of inference, forward chaining and backward chaining.
    Forward chaining is when the data gets put into working memory. This triggers rules whose conditions match the new data. These rules then perform their actions. The actions may add new data to memory, thus triggering more rules. And so on. This is also called data-directed inference, because inference is triggered by the arrival of new data in working memory.
    (view changes)

Thursday, September 24

  1. msg iSkool Project message posted iSkool Project Hi all, Well done with this wiki - very useful. I teach ITGS and am developing a collaboration …
    iSkool Project
    Hi all,

    Well done with this wiki - very useful.
    I teach ITGS and am developing a collaboration area over at http://www.iSkool.net/

    If anybody would like to become a contributor then just sign up (completely free) and let me know.

    Any course can be added - e.g 'gardening' photography, astronomy etc. etc.

    Thanks

    iSkool
    5:52 pm

Thursday, March 19

  1. msg I want to present you my favorite MP3 site on the net : www.mp3salem.com. message posted I want to present you my favorite MP3 site on the net : www.mp3salem.com. (deleted)
    5:14 pm

Wednesday, October 1

  1. user_add Jotr Jotr joined ITGS@patana
    5:07 pm

Tuesday, May 27

  1. 11:41 pm

Thursday, May 22

  1. page Revision Part 2 edited More Revision for June 2008 Year 12 Students Plagiarism and the Internet Here are a few tips a…

    More Revision for June 2008 Year 12 Students
    Plagiarism and the Internet
    Here are a few tips about plagiarism and students: http://eduscapes.com/tap/topic24b.htm

    (view changes)
  2. page Revision 2008 edited ... What other considerations would you need to consider to ensure that the computers were used pr…
    ...
    What other considerations would you need to consider to ensure that the computers were used properly?
    eCorps
    ...
    half! Click here to read about volunteers in Nigeria
    Click
    here to
    Here are some extracts:
    eCorps is usually a three-week service-learning study abroad program for college students or adults interested in working with World Computer Exchange (WCE) to address global technology, education, environmental and cross-cultural issues in the developing world.
    (view changes)
  3. page Revision 2008 edited ... Task 3: Donating Computers There are charities that collect, recycle and donate recycled comp…
    ...
    Task 3: Donating Computers
    There are charities that collect, recycle and donate recycled computer equipment. Imagine that you are an aid worker in Ethiopia and you wanted to apply for some computers to be installed in the local school. Read this link: http://www.computeraid.org/TechnicalSpecs.htm
    ...
    the hardware be?be (add to the middle column). In the last column, add in the specification of a computer in COM5.
    Component
    Minimum Specification
    COM 5
    CPU
    RAM
    1 GB
    Hard disk
    80GB
    Screen
    Network card
    (view changes)
  4. page Revision 2008 edited ... Revision You can either do this on your own or work in pairs. However you need to read the fo…
    ...
    Revision
    You can either do this on your own or work in pairs. However you need to read the following and answer the questions. I suggest that you edit this page and add the answers in - however be careful about editing at the same time!!
    eCorps
    Now here is a CAS project and a half! Click here to find out more
    Here are some extracts:
    eCorps is usually a three-week service-learning study abroad program for college students or adults interested in working with World Computer Exchange (WCE) to address global technology, education, environmental and cross-cultural issues in the developing world.
    eCorps programs take place in countries where WCE has already shipped computers throughout the developing world ~ offering an unprecedented look at the forces shaping education, the environment and technology in the developing world today.
    Students gain relevant field experience and skills. During the twenty-one days, the students will do fifteen days of field work entailing community education about the use of the Internet, assist with developing educational and cultural websites, configuring servers and networks, and training in repair of computers.
    Great opportunities and real challenges face the youth in the developing world if they are to be part of the global economy. eCorps offers students a unique opportunity to get an understanding of the complexities related to globalisation, an insight into what it really takes to develop sustainable 21st Century skills strategies -- all the while helping bridge the global digital divide for the youth in developing countries.
    Questions:
    What is the digital divide? You need to do a little more research to answer this!
    What do the eCorps techs do?
    Why do eCorps techs have to be sent with the donated computers?
    TASK 2:
    Task 1: Recycling Computers
    Read this article:
    [[http://www.guardian.co.uk/business/2008/may/06/waste.recycling<span|http://www.guardian.co.uk/business/2008/may/06/waste.recycling]]http://www.guardian.co.uk/business/2008/may/06/waste.recycling
    1. If you were to donate your computer, why would it be important to wipe the hard drive? Just formatting the hard drive is not enough as data could be retrieved. What does the article suggest that you do with your hard drive to ensure that your drive is complete data free?
    2. Look on the internet and find other ways to completely WIPE your hard drive of data so that it can never be retrieved.
    Task 1:2: Hazards in
    Computers have components that are toxic and dangerous.
    Click here to find out more. a table (three columns) and add in the hazardous information as follows:
    ...
    Monitors (CRT)
    kidneys, nervous and reproductive systems, mental development of children/foetuses
    Task:Task 3: Donating Computers
    There are charities that collect, recycle and donate recycled computer equipment. Imagine that you are an aid worker in Ethiopia and you wanted to apply for some computers to be installed in the local school. Read this link: http://www.computeraid.org/TechnicalSpecs.htm
    If you were to receive the computers, what would the minimum specification of the hardware be?
    ...
    Hard disk
    Screen
    CPURAMHard disk drive capacityGraphicsMonitor What network capabilities would these computers have have? WhatNetwork card
    What
    about the software? There is noThe computers are not installed with an operating system installed or application software. What
    What
    is an operating system? What
    What is application software?
    The site recommends a number of
    operating systems could you install? If you hadsystems. How much does each one cost to do it yourself, would you know wherepurchase? What about to start? Caninstall? Complete the charitytable:
    Operating System
    Cost to purchase
    Cost to
    install for you? What
    What
    if you
    ...
    operating system? Do
    Do
    the children
    ...
    speak English? If not, what problems would you have? What language is the keyboard? Is it English or can you order keyboards with other characters?
    What
    about application
    ...
    are available?
    What other modifications should you consider to ensure that the computers can be used by students and teachers who may not work in English?
    What other considerations would you need to consider to ensure that the computers were used properly?
    eCorps
    Now here is a CAS project and a half! Click here to find out more
    Here are some extracts:
    eCorps is usually a three-week service-learning study abroad program for college students or adults interested in working with World Computer Exchange (WCE) to address global technology, education, environmental and cross-cultural issues in the developing world.
    eCorps programs take place in countries where WCE has already shipped computers throughout the developing world ~ offering an unprecedented look at the forces shaping education, the environment and technology in the developing world today.
    Students gain relevant field experience and skills. During the twenty-one days, the students will do fifteen days of field work entailing community education about the use of the Internet, assist with developing educational and cultural websites, configuring servers and networks, and training in repair of computers.
    Great opportunities and real challenges face the youth in the developing world if they are to be part of the global economy. eCorps offers students a unique opportunity to get an understanding of the complexities related to globalisation, an insight into what it really takes to develop sustainable 21st Century skills strategies -- all the while helping bridge the global digital divide for the youth in developing countries.
    Questions:
    What is the digital divide? You need to do a little more research to answer this!
    What do the eCorps techs do?
    Why do eCorps techs have to be sent with the donated computers?

    (view changes)

More