Sudharaka Palamakumbura

This is the final project of the Java Programming: Object-Oriented Design of Data Structures Specialization offered by University of California, San Diego in conjunction with Coursera.

In this project I implemented several algorithms that analyzes my LinkedIn graph. Specifically I implemented the Bron-Kerbosch algorithm to obtain all the Maximal Cliques of my network as well as obtained Closeness Centrality measurements. The Closeness Centrality of a node is an indicator of the node is… Show more

This is the final project of the Java Programming: Object-Oriented Design of Data Structures Specialization offered by University of California, San Diego in conjunction with Coursera.

In this project I implemented several algorithms that analyzes my LinkedIn graph. Specifically I implemented the Bron-Kerbosch algorithm to obtain all the Maximal Cliques of my network as well as obtained Closeness Centrality measurements. The Closeness Centrality of a node is an indicator of the node is connected with the rest of the graph. The Maximal Cliques are the largest Complete Sub-graphs of the network and they give the closely knit communities within a social network. I also visualized the the graph and created a small interactive program using the GraphStream library. Please refer to the projects GiHub page for more information (https://github.com/SudharakaP/MaximalCliques). Show less

This projects was done as part of the Advanced Data Structures in Java course in the Object Oriented Design of Data Structures Specialization. The project consist of a map application which can output the optimal route between any two given points (intersections, cities etc) using one of Breadth First Search, Dijkstra's or A-Star Algorithm.

In this project we focus on Fully Homomorphic Encryptions (FHE) and its relation to evaluating database queries. The first FHE scheme was proposed by Craig Gentry and ever since FHE schemes gained widespread attention.

This project is focused on enhancing a particular protocol introduced by Youssef Gahi and others which uses FHE shemes to process database queries.

This projects was done as part of the Advanced Data Structures in Java course in the Object Oriented Design of Data Structures Specialization. The project consist of a text editor application along with a GUI which uses efficient data structures to spellcheck and other text manipulations. This project uses a wide range of data structures such as LinkedLists, Binary Search Trees, Tries, HashSets and HashMaps etc.

This project was done as part of the Object Oriented Programming in Java course under the Object Oriented Design of Data Structures specialization. The project consist of a map application that gives a visual representation of earthquake information. The earthquake information is obtained in real time, organized according to their magnitude, and represented in a GUI. The project uses the Unfolding library (http://unfoldingmaps.org/).

This contest is organized by the University of Maryland as the final project for the Cyber-Security specialization in Coursera. The contest evaluates participants' abilities to develop secure and efficient programs. The contest is broken up into three rounds; the Build round, the Break round and the Fix round. During the Build round, builders write software that implements the system prescribed by the contest. In the Break round, breakers find as many flaws as possible in the Build… Show more

This contest is organized by the University of Maryland as the final project for the Cyber-Security specialization in Coursera. The contest evaluates participants' abilities to develop secure and efficient programs. The contest is broken up into three rounds; the Build round, the Break round and the Fix round. During the Build round, builders write software that implements the system prescribed by the contest. In the Break round, breakers find as many flaws as possible in the Build implementations submitted by other teams. During the Fix round, builders attempt to fix any problems in their Build submissions that were identified by other breaker teams.

The programming problem was to create an ATM Communication Protocol that mimic transactions between an ATM and a Bank. Further details of the contest can be found at our project page; http://sudharakap.github.io/DarkKnights/
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Design and development of low cost, high efficiency and stable Dye Sensitized Solar Cells for various applications by surface and structural modifications of semiconducting materials, employment of dye cocktails, ionic liquids and electronically conducting polymers.