Abhishek Roy Contact Information
14/184, Vasundhra Ghaziabad, Uttar Pradesh India - 201012
Education
Indian Institute of Technology, Guwahati Bachelor of Technology, Computer Science and Engineering
7.7/10
Higher Secondary School, 2004 Central Board of Secondary Education
89.6%
Secondary School, 2002 Central Board of Secondary Education
92%
Publications
Voice: +91-9868950931 E-mail:
[email protected] WWW: www.iitg.ernet.in/stud/a.roy/
Ling Chen, Abhishek Roy, Wolfgang Nejdl. Event Detection from Flickr Data through Wavelet-based Spatial Analysis. In 18th ACM Conference on Information and Knowledge Management (CIKM2009). (under peer review)
Technical Skills Programming: C, Java, C++, Promela, Shell Scripting, Assembly (8085) Tools: Eclipse IDE, vim, gdb, Oracle, Spin Model Checker, Rational Rose, LATEX Internships
L3S Research Center, Hanover, Germany Guide: Professor Wolfgang Nejdl May 2008 - July 2008 We developed a wavelet based approach to detect events from Flickr tags. The temporal and locational distributions of tag usage were analyzed in the first place, where a wavelet transform was employed to suppress noise and detect strong clusters. Then we identified the tags related with events and further distinguished between tags of periodic and aperiodic events. Afterwards, tags representing an event were clustered. Finally, for each tag cluster, photos corresponding to the represented event were extracted. Embedded Systems Lab, IIT Delhi, India Guide: Professor Subrat Kar May 2007 - July 2007 We implemented a dialer to negotiate PPP connection on PIC microcontroller. The microcontroller could then send the query over the serial port to a PC running SQL server. I also developed a server-client for file transfer over sockets during the term. Programming was done on Unix using BSD socket library.
Thesis/Academic Verifying Correctness of Dynamic Software Transactional Memory Reports Guide: Dr. Purandar Bhaduri September 2008 - April 2009 Software transactional memory is a concurrency control mechanism analogous to database transactions for controlling access to shared memory in concurrent computing. Parallel programs such as those using STM, or explicit locks execute in a non-deterministic way, so they are hard to test, and bugs can be almost impossible to reproduce. We modeled Dynamic STM implementation with Promela and verified the correctness properties using Spin Model Checker. This work showed how STM designers could use the Spin Model Checker as a verification tool when they develop or modify STM algorithms. Making Selfish BitTorrent Clients History Guide: Dr. Diganta Goswami November 2008 When a selfish client obtains a larger than normal view of the BitTorrent swarm and connects to all peers in its view, it increases its chances to become unchoked by leechers and to discover seeders. In this term paper we have proposed modifications to BitTorrent protocol which should cover the loopholes that selfish clients exploit.
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Information Flow Decomposition for Network Coding Guide: Dr. Sajith Gopalan April 2008 With network coding, intermediate nodes may send out packets that are linear combinations of previously received information. This report explained the information flow decomposition for network coding with its application in wireless networks. Major Academic Chat Application November 2008 Projects Incrementally developed a fault tolerant chat client-server architecture with options for P2P based communication. A feature to play hangman game was added too. Compiler for Nothing language April 2008 Lexical analysis was done using Lex and grammar rules were specified using Yacc. The final compiler took a Nothing language program as input and generated a corresponding 8085 compatible code as output. PintOS: Enhancing the Kernel November 2007 Taken as part of Operating Systems course, it consisted of getting familiar with operating system requirements and gradually enhancing an educational OS kernel (Pintos) running on a Intel hardware and simulating it. The enhancements included solving multi threading problems, implementing schemes for running programs in both kernel and user mode, memory management and file system handling. Automation of CSE Department Library April 2007 The project involved familiarization with Eclipse and Rational products. Domain analysis and full requirements definition were performed. Rational Rose was used to describe class diagrams, subsystems, their interactions and interfaces. 4-bit RISC Based Microprocessor April 2007 Designed and fabricated a 4-bit Microprocessor with an Arithmetic Logic Unit (ALU), Register Set and 256 X 4-bit Main Memory based on Micro programmed Control. Extracurricular Programming I regularly solve programming problems available on the Universidad de Valladolid robot judge. I maintain a technical blog at ubirevera.wordpress.com. Computer Science & Engineering Association I was in the editorial team of the CSEA magazine - Linked List. It involved regular interaction with the alumni, getting the articles and looking at almost all the aspects of publishing a magazine. I was also the Services Secretary of CSEA (2008-09). Quizzing Won first prize in Open Quiz (IIT Guwahati, 2008) and NIIT-egurucool.com Computer IQ Quiz (Delhi, 2002). I was finalist in IMS Quotient (Guwahati, 2007) and Business Quiz (Techniche, 2005). Interest in quizzing requires me to be well-versed in current affairs. Techniche I was in the organizing team of ‘Access Denied’ - network security event at Techniche 2007. I also organized Virtual Stock Market in Techniche 2005. Techniche is the annual technical and management fest of IIT Guwahati.
Last updated on June 15, 2009.
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