Summary
Overview
Work History
Education
Skills
Certification
Publications
Hobbies
Timeline
Octav Florescu

Octav Florescu

Data Scientist
Cluj-Napoca

Summary

Upgrade Humanity with the help of technology.

Overview

11
11
years of professional experience
17
17
years of post-secondary education
2
2
Certifications
2
2
Languages

Work History

Data Scientist

Grab
06.2021 - Current
  • Improved traffic signs facing/orientation via Left-Right Classification and by using the angle estimated from the aspect ratio of the sign
  • Being the key contact for partnership with BabesBolyaiUniv on signs-facing (financed) research for MSc students, I have prepared the data for their study and gave my input on research directions, supported and coordinated the researches in a joint effort with a coordinator from BBU
  • Improved detector's dataset splitting method via hyperopt tries
  • Extracted detections proximity relations Graph from object's locations in images, in order to further use them in predicting logical-groups and correct their 3D positions
  • Extracted detector's roi embeddings from various layers of the fpn in a mmdetection cascadercnn, and used them as embedded info for another classification meta info extraction task
  • Made the code dynamic such that any additional custom head can be inserted
  • Productized Meta's SAM model for traffic signs segmentation
  • That is dockerisation and adaptation to internal data infrastructure
  • Trained a traffic signs detector via super-gradients and integrated instance segmentation train logic
  • Integrated the resulted model in Kotlin for Android/IoT processing via ONNX, TfLiteGPU and Qualcomm's SNPE to run it on DSP
  • Internal framework for multi-task/-head model training and quantized export
  • Added obj detection, instance segmentation, various attributes classifications
  • Autotagging pipeline plus visual prompting of GPT4o and Qwen2VL 72b for Traffic signs attributes and curating inference of previous components

Personal Projects

-
11.2016 - Current

2024

  • Quectel GPS module continuous read write & access via flask API

2022

  • trees detection and counting from airplane images in order to prevent deforestation https://github.com/ai-in-actiune/tree-counting-and-classification-in-images

2021

  • Automatic triggered watering of plants system https://github.com/octavflorescu/SelenoidSoilWatering

2019

  • Trained (TPU) and physical-assemble concept (3d printed the skeleton) of a GoogleCoral board for counting the pull-ups of each team member. https://github.com/octavflorescu/Coral-camera-pullups-counter

2016

  • Whist Score Holder in swift - the UI/UX and implementation - https://github.com/octavflorescu/WhistScoreHolder

Machine Learning Engineer

Telenav
07.2019 - 05.2021
  • Managed the processing pipeline between ML services running in Docker containers
  • TrafficSigns' Positioning improvements by interpolating the images delayed provided locations and timestamps of the captured images and captured gps loc
  • Other positioning improvements for rotated signs by using the difference between the sign's width and the physical sign's width, given the expected height
  • Made a web tool for creating a geo-clustering dataset where signs detected in several images are clustered manually along with their actual north-heading (relevant for traffic signs positioning)
  • Work on a TrafficSigns detection component using YoloV3/V4 darknet
  • Custom dataset splitter based on region (gps) and minimum counts per each set
  • Learning the best split random seeds via hyperopt
  • Work on a TrafficSigns aggregator component: finding the best parameters for augmenting the tabular data pre-clustering using hyperopt
  • Trained several RESNET based models for the task of multi class classification on traffic signs of Indonesia
  • The main purpose was of upgrading a traffic sign-not traffic sign binary classification component to a multi class (not traffic sign & several TrafficSign types) component from the protobuf RabbitMQ pipeline
  • Trained a custom pytorch cnn model and visualisations using gradcam on CIFAR10
  • Technologies: Python, Pytorch, FastAI, RabbitMQ, Docker, Jenkins, Protobuf
  • Pretrained models I experimented with: Resnet34/50/101, WideResnet50/101, AntialiasedResnet34/50, Inception v3, SeResneXt50
  • Components I experimented with: SpatialTransformNetwork, SpatialPyramidPool

iOS Developer

Telenav
03.2014 - 06.2019
  • Development on Scout GPS Link By Telenav Inc
  • - US/Canada App store - iPhone full Navigation app and broadcasting the iOS screens to the Toyota/Lexus onboard screen
  • SkinningKit - Internal UI-SDK for easier styling of UI elements
  • It provided one entry point to recolor/reformat the whole app by applying another 'Skin' (colors/forms/shadows/roundedCorners)
  • Experimented with UI components
  • SGL2 - Not released
  • ThinkNear's Background Location iOS SDK - Not released - It was supposed to track the user and make a profile of them for advertising so I researched a lot @GPS silent tracking
  • Hybrid / GPS Navigation (Sat Nav) By Telenav GmbH
  • Technologies: iOS, Objective-C, Swift
  • Experimented with architectures, multithreading, route ETA estimation, CoreData, GPS, AppDelegate, CustomMapSDKs usage, UserDefaults, Requests, UI constraints, Xibs, Portrait SafeArea auto adaptation, Transition Animations

Sumo-Robots Programmer

Team Matrix
09.2015 - 12.2017
  • Company Overview: https://www.facebook.com/MatrixRobots/
  • Mega-Sumo Robots programmer
  • Technologies: C, Arduino
  • Https://www.facebook.com/MatrixRobots/

Education

High school - Mathematics, Computer Science and English

National College "Emil Racovita"
01.2000 - 12.2012

Bachelor's degree - Computer Science

Babes-Bolyai University
01.2012 - 12.2015

Skills

Neural Networks

undefined

Certification

Modern Robotics, Course 5: Robot Manipulation and Wheeled Mobile Robots

Publications

MegaSumo in Today Software Magazine, 46, 04/01/16

Hobbies

Gardening, Dota2, Automations

Timeline

Data Scientist - Grab
06.2021 - Current
Machine Learning Engineer - Telenav
07.2019 - 05.2021
Personal Projects - -
11.2016 - Current
Sumo-Robots Programmer - Team Matrix
09.2015 - 12.2017
iOS Developer - Telenav
03.2014 - 06.2019
Babes-Bolyai University - Bachelor's degree, Computer Science
01.2012 - 12.2015
National College "Emil Racovita" - High school, Mathematics, Computer Science and English
01.2000 - 12.2012
Octav FlorescuData Scientist