Category Archives: Programming

Anything about programming languages C/C++/C# .NET

JHU Data Science Specialization Capstone

I have created a text prediction application as a part of Coursera Johns Hopkins University Capstone project. Check below for resources. Next Word Text Prediction Algorithm — Data Science Capstone Project by JHU and Swiftkey Presentation: http://rpubs.com/ppant/capstone-presentation Application: https://ppant.shinyapps.io/nextWordPredict/ Code: https://github.com/ppant/Coursera-Data-Science-Capstone-Project Request to use and provide your valuable suggestions for improvement. Thanks

Stanford Machine learning class slides

Andrew NG Machine learning class is the best class so far which I took online. Apart from the course video sometimes lecture slides are also important for quick reference. For quite some time, I was looking for them as they are not available on course home. Here all the lecture slides available at: https://d396qusza40orc.cloudfront.net/ml/docs/slides/Lecture1.pdf Lecture2.pdf Lecture3.pdf Lecture4.pdf and so… Read More »

Getting and cleaning data using R programming project notes

Brief notes of my learning from course project of getting and cleaning data course from John Hopkins University. The purpose of this project is to demonstrate the ability to collect, work with, and clean a data set. Final goal here is to prepare tidy data that can be used for later analysis. One of the most exciting areas… Read More »

Accessing Github API with OAuth example using R

Modern API provided by Google, Twitter, Facebook, Github etc uses OAuth for authentication and authorization. In this example, I am using GitHub API. We get a JSON response which can be used to fetch specific information. In this code I have used my Github account.Code is written R programming languages. Here are the steps: 1.… Read More »

Creating recurring date patterns using Perl

This program will be helpful if someone want to create recur date patterns based on criteria (yearly, monthly,weekly and daily). Program is written in Perl using old version of Date::Manip CPAN module. # Script to calculate recurrence dates based on given criteria using Perl Date::Manip module. # All the input dates in this are given… Read More »

apache lucy search examples

Investigating search engines and this time apache Lucy 0.4.2. I am showing a basic indexer and a small search application. See below code for indexer (This will take documents one by one and then index them). Search module will take arugument as STDIN and then will show the search result. This is pure command line utility just to… Read More »

Implementing mapper attachment in elasticsearch

Create a new index Mapping attachement type Shell script to convert content to base64 encoding and index Query (Search esults will be highlighted) *********************************************************************** If you want to explore more check Full Code on GitHub

RESTfull brief overview

Putting some thoughts mainly for newbies trying to understand REST. Sometimes I observed that the actual documentation on the web is too technical or abstract and scattered which a bit difficult for newbies.. I am writing down some broad points which in my view REST is and it’s equation with HTTP … these points based… Read More »

Perl 5 Optimizing Compiler, RPerl

RPerl: July 4th, 2015: RPerl v1.0 Full Release On CPAN Really cool stuff…

Web development: LAMP: which programming languages should be used: Some thoughts

Now a days people keep asking which technology stack to be used for web development (LAMP, Java, Microsoft) and finally which programming language mainly server-side. Most of the expert says that use whichever you like and comfortable and I totally agree. If you intend to use Java and Microsoft based env then you don’t have… Read More »