Rayan Kejriwal

+91-94618 73955 Bhiwadi, Rajasthan, India, 301019
aryankejriwal4@gmail.com https://geek4ray.github.io/blog/ linkedin.com/in/rayan-kejriwal/
**Data Science Machine Learning Quantitative Finance Mathematics**

Data Science Enthusiast actively following AI research community and seeking for automation in the real- world. Always willing to live in a competitive environment, meeting people and exploring new technologies leveraging the power of AI.

EDUCATION

B.Tech. Electronics and Communication 07/2018 – Present

Indian Institute of Information Technology, Allahabad CGPA - 8.19/10

Senior Secondary 04/2017 – 04/2018

Prince International School, Jaipur CBSE - 87.4%

Secondary 04/2015 – 04/2016

Modern Public School, Bhiwadi CBSE – 10/10

Technical Skills

  • Languages: C++, Python, SQL

  • Frameworks: PyTorch, Fastai

  • Tools/Software: Jupyter, VBA Excel, MATLAB

  • Libraries: Numpy, Pandas, Scikit, Matplotlib, Seaborn

Key Skills

Machine Learning | Neural Nets | EDA | Deep Reinforcement Learning | Numerical Methods |

Object-Oriented Programming | Probability |

Statistics | Quantitative Analysis |

Hypotheses Testing | Timeseries

SKILLS

PROJECTS

Numerai 07/2021 – Present

Open-Source Hedge Fund

  • Known as the hardest data science tournament on the planet

  • Stock Data Modeling

Human Activity Recognition System 04/2021 – 05/2021

B.Tech. Mini Project

  • Activity Classification based on Real-time Data from MPU-6050 sensor fitted on a Wearable Band

  • Feature Engineered 140 Predictive Variables

Kaggle Competitions 12/2020 – Present

Coleridge Initiative

  • Entity Extraction using Transformers API.

Jane Street Market Prediction

  • Binary Classification, Financial Timeseries Modeling using Neural Network.

  • Processing with NVTabular + Rapids API along with Dask Framework including floating-point precision and Numba Speedup.

Other Major Works 06/2020 – 04/2021

Quant

  • Implemented Greeks (using FDM), Jump Diffusion Model, Implied Volatility Model, and European Vanilla option payoff using Black Scholes, Monte Carlo and Asian Discrete Path dependent formula. Currently Studying Financial applications using Reinforcement Learning.

  • Used generic programming and functors in C++.

  • Other supporting numerical method implementations include Decomposition methods – LU, Cholesky, QR and Thomas Algorithm using Eigen Library.

Multilabel Face Classification: CelebA Dataset

  • To characterize Celebrity faces with multi-label face attributes, used Fastai Data Block API, transfer learning using Resnet-50, and fine-tuning to achieve an accuracy of 92%

  • Deployed the web app using Jupyter Widgets and Voila

Image Segmentation: Camvid Dataset

  • Pixel wise Segmentation of image using Dynamic U-NET, also implemented from scratch.

  • Further improved the model by using novel approaches like image resizing, ranger optimizer, fit-flat cos, and Mish activation. Achieved state-of-the-art.

Price Prediction: Blue Book for Bulldozers

  • Predicting Auction Sale Prices of heavy automobile equipment used Random Forest also implemented Random forest Regressor from scratch.

  • Model Interpretation using RF feature importance, Tree Interpreter, Partial Dependence Plot (waterfall), and Tree Variance.

Other Datasets Worked

  • Rossman, Oxford Pet, Biwi Head Pose, RedWine, Adult, MNIST, CIFAR, IMDB, House Prediction, and Titanic

RESPONSIBILITIES

IIITA Info Communication and Incubation Centre 08/2018 – 06/2021

Overall Coordinator

  • Invited Global AI Leaders from FAIR, Microsoft, IBM, NUS, U of T, and Harvard at E-Summit’21 conference sponsored by Walmart and Cisco, lead a team of 89 People; conducted 3 successful editions of E-Summit so far. (2018-2021)

  • Lead Organizer of B-Hacks’20. (2020)

  • Campus Director of Global Hult Prize, IIIT Allahabad Chapter for the first time. (2020)

  • Visited 25+ Coworking spaces in Delhi-NCR to collaborate with start-ups sponsored by NewGen IEDC (2018)

HONORS

  • GATE Statistics: AIR-127 (2021)

  • Dronathon 2019: Overall Winner (2019)

  • 1st North India Open Karate Championship: Bronze (2012), Silver (2013)

INTERESTS

  • Martial Arts (Karate), Yoga and Meditation, Casual Music (Synth and Vocals).