Rajat Patyal 109 Hari Nagar Ashram Mathura Road New Delhi-110014 Email add: [email protected] Mobile No: +91-9650785746 Work Experience: Rajanirudh & Associates April 2012- Till Date Data scientist Job Profile- • • Create tensors in Anaconda environment Create tensors, Create an operation, Open a session, Print the result in Google Cloud machine learning and train models . • Using Tensorboard to visualize the graph and other tools to understand, debug, and optimize the model. • Maintainin spark cluster on Amazon Ec2 for websites. • Using PCA in dimensionality reduction for visualization, feature extraction, data compression, etc. Estimating the lower dimensional subspace offering the principal components (eigenvectors) maximum variance of the projected data. • Using K-mean Clustering get a insight into underlying patterns of different groups, to identify different groups/segments of customers and market each group in a different way to maximize the revenue. • Performing NLP Extraction procedures for sentences and documents in the bag-of-words approach (BOW) which includes tokenization, stop word removal, stemming, and vectorization. Also used (TF-IDF) algorithm in Spark. • Using Naïve Bayes classification model to analyze fraud applications. • Using spark to recommend products by training data as per matrix factorization ALS and using cosine similarity metric. AS PER EVALUATION RMSE AT.28. • Evaluating decision tree internal nodes after considering factors like inflation, per capita income, annual income etc. • Evaluating ROC curve and improving TPR . • Evaluating linear regression models with parameters like age, experience, education, gender, industry appraisals to revise credit lines & limits. • Plotting histograms on observed default rate against estimated probabilities. • Assisting managers in daily tasks. Countrywide Financial services Sep 2004-Jan 2009 Subject matter expert Job Profile- • Auditing loan application documents contacting clients in the US in case application was incomplete. • Conducting interviews & training new hires. American Express India Pvt Ltd April 2002-Aug 2004 Executive Job Profile- • Assisting US customers with questions on credit cards. • Disseminating best practices to team members. • Evaluating customer feedback. • Coaching new joinee’s Personal Details: Father`s Name : Mr. Romesh Chander Date Of Birth : 20 Feb 1980 Hobbies: Reading, Watching Movies, Listening to Music Languages Known : English, Hindi, French Professional Qualification: • Bcom(Hons ) 2001 Delhi University • Advance Diploma IN Software (NIIT)2000 covering Java, sql, Linux, spss ©