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Xing Li's blogs

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    COMP 361 - Reflection on Assignment 4

    By Xing Li August 16, 2019 - 8:49am
    (net time : 580 min)              This assignment is the most difficult one for me up till now. It is not to say that it takes more time than other assignments, but to describe the level of my uncertainty about...
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    SCIE 326 - Unit 15 Notes

    By Xing Li August 15, 2019 - 11:20am
    (net time : 148 min) empathetical: direction, intuitive feeling to be satisfied; Schrödinger equation analogical: model/structure, more useful in analogy; plum pudding model/solar system model analytical: details, truth criteria to be...
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    SCIE 326 - Unit 14 Notes

    By Xing Li August 7, 2019 - 11:18am
    (net time : 109 min) Unit 14 linear: proportional; exponential: rate of change proportional to the qty. (radioactivity, population, compound interest, cooling) positive: oscillation; negative: stability. feedback in complex systems: negative and...
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    SCIE 326 - Unit 12 & 13 Notes

    By Xing Li August 7, 2019 - 11:17am
    (net time : 241 min) Unit 12 scientific facts: empirically true but theory-laden Q5: job search in Canada Q7: Fahrenheit 0: freezing temperature of a solution of brine , 96: human body; Q8: C1/(C1+C2) must between 0 and 1 Unit...
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    COMP 361 - Reflection on Assignment 3

    By Xing Li August 7, 2019 - 11:14am
    (net time: 332 min)          When I tried to list system inputs, I made a mistake to list web interface, mobile interface and telephone interface as the three different system inputs. However, when I compared it with the...
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    SCIE 326 - Unit 10&11 Notes

    By Xing Li July 17, 2019 - 11:49am
    (net time : 293 min) Unit 10 Advantage of maths: simplicity, economy of effort, generality and precision Q1: axiom? Q2: no need to experiment? Most of the contents are known in statistics courses Unit 11 symmetry: invariance under...
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    SCIE 326 - Unit 9 Notes

    By Xing Li July 17, 2019 - 11:46am
    (net time : 125 min) Unit 9 3 principles: non-contradiction, sufficient reason(everything has a reason: logically, empirically, optimally), identity of indiscernible (depending on the hierarchy level of categories) 4 polarities: (in...
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    COMP 361 - Week 11 Notes

    By Xing Li July 17, 2019 - 11:43am
    (net time : 92 min) Section 3 Database   DBMS = API + query interface + admin interface + programs database = physical data store + schema schema= organization + association + data spec + data control data spec: type, length, location,...
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    COMP 361 - Reflection on Assignment 2

    By Xing Li July 16, 2019 - 1:39pm
    (net time: 624 min)      I did fast for the use case diagram and the domain model class diagram, but I spent way more time on use case brief description. This is partially because I found more problems in my original analysis when I...
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    SCIE 326 - Unit 8 Notes

    By Xing Li June 21, 2019 - 11:46am
    Unit 8 (net time : 105 min) reasoning: the way our minds fit things together.                 empathetical, analogical,...
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