
Rochit Ranjan

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About me
Ex- Associate Data Scientist @ Landmark Group | PG Diploma in Data Science - IIIT Bangalore
Education

Holy Mission High School
2008 - 2009Intermediate
Holy Mission High School
2006 - 2007Matriculation
Indian Institute of Technology, Patna
2023 - 2025Master of Technology - MTech Artificial Intelligence and Data Science EngineeringCourse Work done Till date:Artificial Intelligence, Machine Learning, Probability and Stochastic Process, Reinforcement Learning, Linear Algebra and Optimisation

International Institute of Information Technology Bangalore
2019 - 2020PG Diploma in Data ScienceCapstone Project Credit card fraud detection-Using different modeling techniques predict the credit card frauds based on the data set from Kaggle. The predicted class was compared to the original class and appropriate evaluation techniques were used to determine which model performs the best and reflects business goal of detecting fraud.Techniques and algorithms covered-★ Inferential Statistics and Exploratory Data Analysis (EDA) using Python, Hypothesis Testing.★ Linear… Show more Capstone Project Credit card fraud detection-Using different modeling techniques predict the credit card frauds based on the data set from Kaggle. The predicted class was compared to the original class and appropriate evaluation techniques were used to determine which model performs the best and reflects business goal of detecting fraud.Techniques and algorithms covered-★ Inferential Statistics and Exploratory Data Analysis (EDA) using Python, Hypothesis Testing.★ Linear Regression, Logistic Regression, ARIMA, SARIMAX, Clustering techniques, SVM, Principle Component analysis (PCA), Decision Tree Models, Random Forest, Boosting★ Regularization techniques- Lasso and Ridge★ Handling Class Imbalance - Stratified Sampling, SMOTE & ADASYN★ Model Evaluation techniques★ Deep Learning neural network- ANN, CNN, RNN Show less

The LNM Institute of Information Technology
2010 - 2014Bachelor of Technology (B.Tech.) Electronics and Communications EngineeringRelevant Coursework -Probablity and Stochastic Process, Signal Processing, Linear Algebra, Numerical Methods
Experience

Cognizant
Jan 2015 - Aug 2020★ Built a topic modelling model to extract topics and words describing each topic using Latent Dirichlet allocation. ★ Developed a ML model which finds the most similar historical ticket for a newly opened ticket(Content based filtering for Text corpus) using Vectorisers, Cosine and Jaccard's Similarity.★ Developed a ML model for creating clusters of historical ticket using Vectorisers and K-means.★ Built a wordcloud using TextRank algorithm★ Implemented the End to End Content based filtering BOT(for Textual corpus) using NLTK, Scikit-learn, Core Java, Spring Boot, Python. Show less
Machine Learning Engineer @ Cognizant Accelerator
Aug 2019 - Aug 2020Associate
Sept 2017 - Aug 2019Programming Analyst
Jan 2015 - Sept 2017

Landmark Group
Nov 2020 - Feb 2021Associate Data Scientist★ Developed an ARIMA based model for forecasting weekly sales based on Color and shade of clothes.★ Solved a business case to find out analogous product and predict weekly sales based on similarproduct using KPrototype, Ordinary least squares and Bass Diffusion Model.★ Used WMAPE and rolling WMAPE as Evaluation metric.★ Used beautifulSoup to webscrap what products their competitors are selling .

CARS24
May 2021 - Aug 2021Data Scientist★ Collected and imported data from various data sources.★ Coducted exploratory data analysis on credit scoring data(CIBIL).★ Developed a weighted similarity based approach to do EMI estimation(libability) of customersTools and Libraries Used : Scikit-Learn, Pandas, Numpy, Scikit-Learn, Python, SQL

AI-NLP-ML Research Lab IIT Patna
Aug 2024 - nowSenior Research Fellow
Licenses & Certifications

Image and video processing: From Mars to Hollywood with a stop at the hospital
CourseraMar 2013
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