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$60 USD / hour
Flag of UNITED STATES
$60 USD / hour
It's currently 12:22 AM here
Joined October 29, 2017
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Rangarajan C.

@rchari51

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$60 USD / hour
Flag of UNITED STATES
$60 USD / hour
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Machine Learning Engineer specializing in Natural Language Processing (NLP)

I am a Data Scientist with considerable experience in NLP and related fields such as building ontologies, and knowledge of Deep Learning using CNNs and RNNs. Very interested in applying word2vec and LDA for a variety of tasks. I have a Master's in Theoretical Computer Science from the Univ. of Denver and one in Computing with emphasis on AI from Georgia Tech. I have also worked in social network analysis using graph theoretic techniques. Currently, independently, developing a recommender system using GPU computing on large amounts of ratings data.

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4.8
₹7,777.00 INR
Mr Rangarajan has great technical expertise on Machine learning
C Programming
Java
Python
Matlab and Mathematica
Machine Learning (ML)
J
Flag of Jameel K.
@jameelkhan
6 years ago

Experience

Data Scientist

Infosys Limited
May 2017 - Sep 2017 (4 months, 1 day)
Worked on a new sentiment analysis algorithm for a world leader in the Oil & Gas industry as well as an algorithm to extract information from email threads related to customer care (the cause and resolution of customer complaints) for another Fortune 10 company.

Machine Learning Consultant

Visual Semantics
Nov 2016 - Mar 2017 (4 months, 1 day)
Implemented a cascaded convolutional network for use in a system for face detection. The network was intended to reproduce results from a recent research paper, using the Torch Deep Learning framework. Other frameworks like Theano/Lasagne were also evaluated. Studied a sequence of papers on other deep neural network architectures as well as OpenFace (CMU) and FaceNet (Google)..

Data Scientist

Jobs2Careers
Aug 2015 - Oct 2016 (1 year, 2 months)
Devised various NLP techniques to improve relevance and ranking of results obtained from the job search engine. The underlying algorithms included word2vec and LDA, and keyword extraction techniques like TextRank..

Education

M.S. / Ph.D. candidate

Georgia Institute of Technology, United States 1983 - 1987
(4 years)

M.S.

University of Denver, United States 1981 - 1983
(2 years)

Qualifications

Structuring Machine Learning Projects

Coursera
2017
Course 3 of the Deep Learning Specialization.

Neural Networks and Deep Learning

Coursera
2017
Course 1 of the Deep Learning Specialization Series delivered by Andrew Ng, DeepLearning.ai,

Publications

System and Method for Copressing and Decopressing Fonts Based Upon Font Stroke Regularities

US Patents and Trademarks Office
US Patent # 5,524,182, 1996. Assigned to H-P. This invention describes a method by which regularities in the glyphs of a font or typeface can be discovered and exploited to compress and later decompressed.

Alternative Profiling Methodology and Tool for Analyzing Competitive Benchmarks

US Patents and Trademarks Office
US Patent # 6,381,558, 2002. Assigned to IBM. A third party vendor's benchmark can be difficult to understan when its source code is proprietary.This took shows one way the factors on which the benchmark score depends can be discerned.

“Entity Resolution from Inferred Relationships and Behavior”

IEEE Big Data 2014
This paper, written with Jonathan Mugan and others, describes a method for entity resolution - deiscovering that, for example, A Facebook account and a Twitter handle are owned by the same individual. It relies partly on graph theoretic techniques.

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