Landing : Athabascau University

Activity

  • Xing Li published a blog post COMP 361 - Reflection on Assignment 4 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...
  • Xing Li published a blog post SCIE 326 - Unit 15 Notes 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...
  • Xing Li published a blog post SCIE 326 - Unit 14 Notes 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...
  • Xing Li published a blog post SCIE 326 - Unit 12 & 13 Notes 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...
  • Xing Li published a blog post COMP 361 - Reflection on Assignment 3 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...
  • Xing Li published a blog post SCIE 326 - Unit 10&11 Notes 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...
  • Xing Li published a blog post SCIE 326 - Unit 9 Notes July 17, 2019 - 11:47am
    (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...
  • Xing Li published a blog post COMP 361 - Week 11 Notes 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,...
  • Xing Li published a blog post COMP 361 - Reflection on Assignment 2 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...
  • Xing Li published a blog post SCIE 326 - Unit 8 Notes June 21, 2019 - 11:46am
    Unit 8 (net time : 105 min) reasoning: the way our minds fit things together.                 empathetical, analogical,...
  • Xing Li published a blog post SCIE 326 - Unit 7 Notes June 21, 2019 - 11:44am
    Unit 7 (net time : 196 min) rules of professional conduct (behave in certain ways to know the truth): knowledge is public, not to judge by source or faith, include all sources with no bias, honesty, open minded, successful science requires...
  • Xing Li published a blog post SCIE 326 - Unit 6 Notes June 18, 2019 - 11:25am
    Unit 6 (net time : 151 min) scientific statement: Provide an explanation or causal mechanism of a naturally occurring phenomenon Generate predictions that are testable via observations that are replicable and natural   rationalism:...
  • Xing Li published a blog post SCIE 326 - Unit 5 Notes June 17, 2019 - 11:26am
    Unit 5 (net time : 129 min) pathological science: low statistical significance, independent of cause, exceptionally high accuracy, revolutionary, ad hoc justification, can’t be reproduced pseudo science: static or randomly change (not...
  • Xing Li published a blog post COMP 361 - Week 9 Notes June 17, 2019 - 11:23am
    Unit 5 (net time : 219 min) Section 1 Object-Oriented Design   What is OOP: Each object encapsulate program logic + attributes; a set of object cooperate with messages; instantiation = create object in execution; organized at...
  • Xing Li published a blog post MATH 309 - Unit 1 June 12, 2019 - 12:01pm
    Unit 1 Integer (net time: 190 min) equality 8 axioms: A4M3D1 can lead to P3 of uniqueness               A1. associativity: (k + m) + n = k + (m + n) A2. commutativity:...
  • Xing Li published a blog post MATH 271 - Unit 2 June 12, 2019 - 11:59am
    Unit 2(net time: 138 min)5.1 Eigen spaceA is invertible ó λ≠05.2 DiagonalizationSimilarity transformation: det(P-1AP) = det(A)Similarity invariant: determinant, invertibility, rank, nullity, trace, characteristic...
  • Xing Li published a blog post SCIE 326 - Unit 4 Notes June 11, 2019 - 11:46am
    Unit 4 (net time : 99 min) bottom-up: build chemistry but can’t feel wet, top-down: build physiology but can’t define health, physiology physiology vs pathology: macro vs micro atomic and kinetic vs earth, air, fire and...
  • Xing Li published a blog post SCIE 326 - Unit 3 Notes June 11, 2019 - 11:44am
    Unit 3 (net time : 184 min)question->answer with existing theory, unanswered-> revolution, with constraints (real world, publicly available)ask theoretically: hypothesis is true or consistent, possible prediction, what’s...
  • Xing Li published a blog post COMP 361 - Week 7 Notes May 31, 2019 - 11:23am
    Unit 4 (net time : 163 min)  Section 1 Overview   Analysis: requirements, what; Design: bridge from requirement to solution, how. The objective of systems design is to define, organize, and structure the components of the final...
  • Xing Li published a blog post SCIE 326 - Unit 2 Notes May 24, 2019 - 11:46am
    Unit 2 (net time : 114 min)Q2.Q4. science: enterprise that generates coherent understanding about real world, yield testable theories which is relatively true.             ...
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