CI Chapter 3,4 Study

I googling pysqlite 64bit
I found the unoffical version existed in the url  http://www.lfd.uci.edu/~gohlke/pythonlibs/

I think I had installed python 64 bit thus pysqlite 32bit version not work
You have also reinstall the python 32bit , but I totally hate it

I was difficult in reading clustring and search algorithm as chapter 3,4

It's totally don't understand.
I almost knew  the outline of clustering and search algorithm a little.

Before I said the reference book as Algorithms of Intelligent web. This book very useful reference.
First that book sample code written by Java ! Oh thanks God

Second They use open search library Lucene  that I experienced.

Collective Intelligence book with Python was published  in 2008.
Algorithms of Intelligent web book with Java was published in 2009

I think Collective Intelligence is converted to Intelligent web book with Java

Two book's contents is almost same
First search algorithms explain link analysis and pageRank populated by Google
Second clustering and recommends algorithms is also almost same.

I am happy with that I will understand more about which I didn't understand in CI