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1 Fuzzy Logic and Fuzzy Systems Coursework Description 1 Khurshid Ahmad, Professor of Computer Science, Department of Computer Science Trinity College, Dublin-2, IRELAND October 5 th, 2010. https://www.cs.tcd.ie/Khurshid.Ahmad/Teaching.html

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2 F UZZY L OGIC & F UZZY S YSTEMS The continuous assessment comprises 20% marks of the Course; You have to find a fuzzy logic product or service; Find documentation related to the product or service product/service description – marketing literature; learned papers relating to the product service – papers in learned journals (IEEE Transactions on Fuzzy Systems - http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punu mber=91, Journal of Fuzzy & Intelligent Systems - http://www.iospress.nl/loadtop/load.php?isbn=106412 46 -,and many other publications listed on http://www.abo.fi/~rfuller/fuzs.html http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punu mber=91 http://www.abo.fi/~rfuller/fuzs.html

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3 F UZZY L OGIC & F UZZY S YSTEMS The continuous assessment comprises 20% marks of the Course; Find out the fuzzy sets, linguistic variables and terms, and membership functions used in the construction of the product or service; Build a simulation using MATLAB, for example, of your chosen product service;

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4 F UZZY L OGIC & F UZZY S YSTEMS Write a 4 page report (c. 1000 words) describing your experience perhaps along the following structure: 1.Introduction; 2.Description of product/service; 3. Outline fuzzification, composition, inference, de-fuzzification used in the product/service. 4.Describe your simulation 5.Conclusion: Was the use of fuzzy logic justified;

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5 F UZZY L OGIC & F UZZY S YSTEMS The Report is due by 10th January 2010 *For some submissions there may be a 15 minute Presentations of the Report to take place during week beginning 2nd April 2009.

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6 F UZZY L OGIC & F UZZY S YSTEMS Hints for Coursework: Risk Assessment for Chemical Plants Narendra Mahant (2004). Risk Assessment is Fuzzy Business—Fuzzy Logic Provides the Way to Assess Off-site Risk from Industrial Installations http://www.bechtel.com/assets/files/PDF/BIP /34936.pdf

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7 F UZZY L OGIC & F UZZY S YSTEMS Risk assessment is an “assessment” of something hypothetical defined as “risk”, which must then be interpreted as “high”, or “low”, or “tolerable”. Such assessment, whether qualitative or quantified, requires analyst’s judgement, expert human knowledge and experience. Quantification of risk in scalar values is subject to uncertainties for many reasons including difficulties in defining the likelihood and consequence severity and the mathematics of combining them. http://www.bechtel.com/assets/files/PDF/BIP/34936.pdf

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8 F UZZY L OGIC & F UZZY S YSTEMS Hints for Coursework: Insurance and Uncertainty Jean LeMaire (1990). Fuzzy Insurance. ASTIN Bulletin – The Journal of the International Actuarial Association Volume 20, No. 1 – April 1990. pp 33-55. http://www.casact.org/library/astin/vol20no1/33.pdf

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9 F UZZY L OGIC & F UZZY S YSTEMS http://www.casact.org/library/astin/vol20no1/33.pdf Insurance and Uncertainty Let X be a set of prospective policyholders, x =x (T1, T2, T3, T4). Assume that the requirements for the status of" preferred policyholder" will be based on the values taken by 4 variables T1: the total level of cholesterol in the blood, in mg/dl, T2: the systolic blood pressure, in mm of Hg T3: the ratio (in %) of the effective weight to the recommended weight, as a function of height and build T4: the average consumption of cigarettes per day

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10 F UZZY L OGIC & F UZZY S YSTEMS http://www.casact.org/library/astin/vol20no1/33.pdf In the USA, The recommend a level of less than 200 mg of cholesterol per deciliter of blood levels between 200 and 240 mg/dl are considered to be borderline high. The fuzzy set A of the people with a low level of cholesterol can then be written as U

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11 F UZZY L OGIC & F UZZY S YSTEMS Hints for Coursework: Fuzzy Syrup Mixing: Philip Babatunde OSOFISAN. Fuzzy Logic Control of the Syrup Mixing Process in Beverage Production http://ljs.academicdirect.org/A11/093_108.htm

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12 F UZZY L OGIC & F UZZY S YSTEMS Syrup Mixing Process in Beverage Production http://ljs.academicdirect.org/A11/093_108.htm

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13 F UZZY L OGIC & F UZZY S YSTEMS How sweet is sweet?

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14 F UZZY L OGIC & F UZZY S YSTEMS

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15 F UZZY L OGIC & F UZZY S YSTEMS

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16 F UZZY L OGIC & F UZZY S YSTEMS Hints for Coursework: Fuzzy Time Series Analysis: Observing change through candlesticks Chiung-Hon Leon Lee, Alan Liu, and Wen-Sung Chen (2006). ‘Pattern Discovery of Fuzzy Time Series for Financial Prediction’. IEEE Transaction on Data and Knowledge Engineering. Vol 18 (No. 5), pp 613-625. http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=161386 5&tag=1 (You can access this paper within the College by going to www.tcd.ie/Library and then clicking onto the e-journals tab in the page) www.tcd.ie/Library

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17 FUZZY LOGIC & FUZZY SYSTEMS Observing change through candlesticks Chiung-Hon Leon Lee, Alan Liu, and Wen-Sung Chen (2006). ‘Pattern Discovery of Fuzzy Time Series for Financial Prediction’. IEEE Transaction on Data and Knowledge Engineering. Vol 18 (No. 5), pp 613-625. The behaviour of financial instruments over a period of time shows that there is an inherent fuzziness in this behaviour. The behaviour shows characteristic patterns – captured by the so-called candlestick patterns used to display the full range of behaviour during the period of time. The range includes the value of the instrument at the beginning and end of the trading period (called open and close), and the highest and the lowest values during trading (called high and low). Usually, only the closing value of the instrument is cited. Closing Value Bar Chart Candlestick If open value is greater than closing value then paint the body white If open value is smaller than closing value then paint the body black Ifopen value is approx. equal to closing thenput hatched lines in the body

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