Tag: MongoDB

Week of September 30 to October 6, 2013

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 174 total views,  2 views today

Coursera:

1) Metadata: Organizing and Discovering Information: Submitted Homework 4.
2) Metadata: Organizing and Discovering Information: Video of week 5 released.
3) Linear and Integer Programming: Submitted week 4 programming assignment. The level of difficulty keeps increasing in each programming assignment. Longer time is spent to augment code, debug program logic, run test cases and verify results. I pray to God that I have the strength and determination to go through the rigid schedule and materials in the next five weeks.
4) Linear and Integer Programming: Week 5 videos released but I still need to watch week 4 video lectures and attempt week 4 assignment. Damn, I am falling behind.
5) Linear and Integer Programming: Watched all week 4 video lectures and submitted homework assignment. The assignment is manageable because it is consisted of four short questions.

EDX:

6) CS1156: Learning From Data started today and I already face issue. The tool, LionSolver, that is useful to solving homework assignments does not run on Linux platform. As a result, I have to install Wine on my ubuntu machine and run LionSolver in it. Thankfully, Oct 1 is public holiday in HK and I will use the extra free time to install software and watch some videos
7) CS1156: Week 1 already has two video lectures that play in the duration of 3 hours and 15 minutes. Homework has 10 multi choice questions that look difficult. I attempted 4 questions and got 3 right (sweat in my palms) and 6 to go.

MongoDB University:

7) M101JS: MongoDB for Node.js Developers: 10/10 in final exam and 100% overall grade.
8) M101J: MongoDB for Java Developers: Certification of Completion issued today (2013-10-03).

Daily Update on September 28, 2013

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 168 total views,  2 views today

Coursera:

1) MetaData: Organizing and Discovering Information: Must watch week 4 videos over the weekend because homework is due next Thursday (Oct 3).

MongoDB University:

2) M101JS: MongoDB for Node JS Developers: Answered all questions in the exam finally. Question 7 is the hardest in my mind because I spent three days to get the correct answer. Eventually, I wrote two versions for this question: pure Javascript solution and Node JS solution. Both solutions yield the same answer, so I am confident my NodeJS implementation is correct. I am more comfortable of MongoDB than Node JS in this course, the asynchronous feature of Node JS had me scratching my head when working on homework problems and exam questions. Even though this course ended, it is not the end of my Node JS journey, it is just the beginning.

Others:
3) Installed Ubuntu OS on my laptop last night and insanely using “apt-get install” command to install development tools and packages(git, python, octave and many more).

Week of September 23 to 30, 2013

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 132 total views,  2 views today

Coursera:

1) Linear and Integer Programming: Week 4 videos and Homework 4 released.
2) Recommender System: Submitted Written Assignment 2 and Programming Assignment 1. Written Assignment 1 was peer-graded and surprisingly my grade is 6/6.
3) Recommender System: Watching lecture videos of module 3 and I have absolutely no clue how to tackle written assignment 3 and programming assignment 2. Module 3 is about content-based recommender that talks about user preferences, attributes and items. As usual, I have to watch the videos repeatedly until the concepts become clear to me.
4) Metadata: Organizing and Discovering Information: Unit 4 videos released and the topic is Alphabet Soup (What the heck does that mean?). I find this course boring and may consider to give it up to concentrate on current courses and upcoming machine learning course.

MongoDB University:

5) M101J: MongoDB for Java Developers: Final exam was autograded today (2013-09-24) and my fear became reality, I got question 5 wrong again (this is starting to get on my nerve). I better watch the answer video before I attempt M101JS final examination before deadline.
6) M101JS: MongoDB for Node.js Developers: Week 7 videos and final exam released today (2013-09-24).

Week of September 9 to 15, 2013

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 154 total views,  2 views today

Coursera:

1) Linear and Integer Programming: Watched week 2 video lectures (Simplex Method).
2) Metadata: Organizing and Discovering Information: Watched week 2 video lectures (Dublin Core).
3) Introduction to Recommender System: Submitted Written Assignment 1
4) Linear and Integer Programming: Submitted Pivoting Assignment #1. Still need to do Program the Pivot: part 1 and part 2 (Will use Scala to complete the assignment because I need to brush up the language before Reactive Programming course commences in November).
5) Metadata: Organizing and Discovering Information: Submitted Homework 2 and earned 15/15 in third attempt (Thanks to the hints from TA and fellow classmates).
6) Introduction to Recommender System: Begin to watch week 2 video lectures.

MongoDB University:

7) M102: MongoDB for DBA – Downloaded Certification of Completion and joined LinkedIn M102 Alumni Group.
8) M101JS: MongoDB for Node JS Developers – Completed Homework 5 (Aggregation).
9) M101J: MongoDB for Java Developers – Completed Final Exam tonight (2013-09-12). Questions will be graded on September 24, 2013 and I aim at 9/10. I am confident of my answers except question 5. I got it wrong in M101P exam and did not bother to watch the answer video. The same question appears again and I have no idea which options to choose.

All MongoDB university courses are great and I hope many people feel the same way I do.

Programming:

10) Continue to work on my simple Android Application.
— Create an activity to load Fevawork course pages in WebView. The WebView shows progress status during page loading and built-in zoom tool to enable user to resize page. Moreover, the activity listens to backspace and triggers WebView to return to previous page if previous page exists.
— TODO: Load course records from sqlite database and implement operations to add, delete update courses.

Week of September 2 to 8, 2013

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 176 total views,  2 views today

Coursera:

1) Dropped Microeconomics Principles due to heavy schedule.
2) Linear and Integer Programming, Metadata: Organizing and Discovering Information and Introduction to Recommender Systems start this week. Video lectures are published in course websites but I haven’t had time to watch them yet.
3) Linear and Integer Programming Course: Completed Assignment 1 and Assignment 2 tonight (2013-09-04)
4) MetaData: Completed Homework 1 and scored 15/15 on my third attempt. (2013-09-05)
5) Recommender System: Watched videos of module 1

MongoDB University:

6) M102 Final Exam is graded and final mark is calculated. My final exam mark is 11 out of 12 and final course grade is 96%, good for distinction. Now, I patiently wait for course survey and invitation to LinkedIn M102 Alumi Group.
7) Completed M101J Homework 6 (Application Engineering). They give us Homework 6 of M101P and even the validation script is Python.
8) Completed M101JS Homework 4 (Performance). HW4 of M101P is reused in this course and I am a little disappointed because I expect different questions from the instructor and tutor.

Programming:

9) Continue to work on my simple Android Application.
– Add 3 tabs and each tab is consisted of a list view and list view item is customized to display image view and text view.
– Add intent to call my mobile phone
– Add intent to send email to my Gmail account.

Week of August 25 to 31, 2013

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 156 total views

Coursera:

1) All summer courses ended. Completed two courses and dropped three.
2) Signed up for Principles of Reactive Programming, Programming Handheld Systems with Android and Microeconomics Principles.

MongoDB University:

3) 10gen Education renamed to MongoDB University.
4) Completed M102 Final Exam. It is consisted of eleven questions and took me two days to complete. Exam result will be released on next Tuesday.
5) Completed M101J Homework 5 (Aggregation Framework). It is same as Homework 5 of M101P.
6) Completed M101JS Homework 3 (Implement add new post and new comment functionality). The asynchronous callback concept is unnatural to me to grasp right now. Give me several weeks and I should be comfortable of passing callback function to nodeJS function.

Udacity

7) Begin Lesson 2 of CS253 Web Development. This week covers HTML controls, Http Request and Response that I have already learnt since 2006. However, Steve still teaches many new things that I did not know beforehand. My objective this weekend is to use Python and Webapp2 framework to write html pages and have them run in local google app engine.

Fevawork:

8) Retake lesson 4 of Certificate in Google Android Application Development for Marketing Managers. Able to invoke Google Map API to show my home in Google Map in Marketing Jar.

Programming:

9) Successfully write an Android Application to display Google Map. It should not be difficult given my Java background. Localize the application to English, Traditional Chinese and Simplified Chinese.

Completed M101P: MongoDB for Developers

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Final exam was submitted on past Thursday and I am waiting for the result to come out next week.  According to the course website, the deadline of the exam is August 6, 9:00 AM HK time; it will be graded by autograder and posted the result in the progress tab of student portal.

I must achieve at least 65% to earn the certificate and it is no easy task. It is because the the weight of the exam is very high, namely 50%. If I underachieve in the final exam, my dream of attaining 10gen certificate will be burst.

The homework average is 42 out of 50; it has gone down a bit because I forgot to hand in assignments of week 1 and week 2. The exam is consisted of 10 questions, so I need to get at least 5 correct answers to achieve my goal.

I am skeptical because there are 3 questions I don’t know the answer. Even though I visit course discussion forum to look for hints and advice, nothing helpful has turned up.  The 5 hand-on questions are straightforward but I have no way of verifying my answers.  The JSON datasets used in the exam are so large that they make checking results extremely time consuming.

My fate rests on the final exam autograder. When next Tuesday arrives, I will know if I pass the course of not. Wish me luck!!!!

 

10gen Education offers new course

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Great news, 10gen will offer a new MongoDB course this August and it will be taught by the marvelous Andrew Erlichson and his teaching staff.

  1. M101JS: MongoDB for Node.js Developers

Some background of JavaScript is required. If you don’t know JavaScript, you can search JavaScript tutorial sites on Google and study the language before the class begins.

Resources on MongoDB and Node.js

July offering of MongoDB courses

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Not getting enough of MongoDB, I also registered M101J and M102 offered in July.

  1. M101J: MongoDB for Java Developers
  2. M102: MongoDB for DBAs

I am going to be super busy this summer but I will enjoy every moment of it.
Did I mention that the courses are free?

Free!!!!

What are you waiting for? Come join me!!!!