Coding Week 4:Chess,Game of Strategies

Yes, you read it correctly chess it is !!!

Oh, i am in no way relating  myself Indian prodigy Vishwanathan Anand.Just Information retrieval of Chess,India reminded of  our prodigy and thought it would be good to choose his pic correctly depicts Chess.

Without a lot of explanations will start explaining how was the week:

Weeks started with a lot of frustration to discard the previous weeks implementation and resolution to repeat mistakes of previous week again.As we gotta learn from our mistake.

As a formal procedure jotting down what was done in week:

1. Removed and adjusted the back-end to treat bi-grams as yet another terms.

2. Storing of bi-grams ruined the statistics of document,Storing the various document statistics like Document Length,Bi-gram Document length,Number unique term,Number of Unique bi-grams.

3. Bug fixing due to bi-gram statistics in posting list(Found during regression testing)

Week started with cleaning up previous weeks mess.Removing the implementation and treating bi-grams as terms.Followed by the discussion on how to store the bi-gram statistics.I learned from my mistakes and first discussed about foundation idea on how to store the document statistics in back-end.

Since per document statistics is accessed while matching,so its stores in easily accessible location post list table.So now the per document resides as 4 different posting entry in post-list table.

Following this was the most interesting thing of week playing chess.While regression testing the back-end changes i found all test of the test-suite failing in front of me.Believe me this is not something which you would want to get it at-least for back-end but you always end up here only.There were almost two important bugs after the investigation.Please refer here for details .Then started the Game of Chess(Bug Identification) with Xapian.

I was all there in playground seeing making checkpoint, estimation problem and making  strategies what  could me next and planning if code gave this error(played this move) then will do this or possible reason could be and finally solve this bug giving bug check and mate(win the Game of Chess so. much relieve for mind).