For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
Atul Kumar

Atul Kumar

Data Labeling & Annotation – Weather Data Fusion (Academic)

INDIA flag
India
$10.00/hrIntermediateOther

Key Skills

Software

Other

Top Subject Matter

Weather Domain Expertise
Time-series Analysis
Healthcare

Top Data Types

DocumentDocument
ImageImage
VideoVideo

Top Task Types

Classification
Fine Tuning
RLHF

Freelancer Overview

Data Labeling & Annotation – Weather Data Fusion (Academic). Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Technology, Siksha 'O' Anusandhan University (2026) and Higher Secondary School Certificate, PVSS DAV Public School (2022). AI-training focus includes data types such as Geospatial, Tiled Imagery, and Document and labeling workflows including Classification.

IntermediateHindiEnglish

Labeling Experience

Data Labeling & Annotation – Weather Data Fusion (Academic)

OtherClassification
I fused and aligned heterogeneous weather data sources (IMD, NOAA, ERA5), performing spatial labeling and object categorization to resolve grid-resolution mismatches. I built CNN and LSTM models from scratch in NumPy, deeply segmenting time series into discrete temporal boundaries as part of the annotation process. All decisions and edge-case handling were documented to ensure modeling reproducibility for data labeling tasks. • Integrated three sources with precision for consistent spatial categorization. • Applied sequence segmentation to identify action start/end times in labeled datasets. • Emphasized structured documentation for clarity and reproducibility. • Demonstrated relevance to robotics-style spatial annotation and labeling.

I fused and aligned heterogeneous weather data sources (IMD, NOAA, ERA5), performing spatial labeling and object categorization to resolve grid-resolution mismatches. I built CNN and LSTM models from scratch in NumPy, deeply segmenting time series into discrete temporal boundaries as part of the annotation process. All decisions and edge-case handling were documented to ensure modeling reproducibility for data labeling tasks. • Integrated three sources with precision for consistent spatial categorization. • Applied sequence segmentation to identify action start/end times in labeled datasets. • Emphasized structured documentation for clarity and reproducibility. • Demonstrated relevance to robotics-style spatial annotation and labeling.

2025 - Present

Data Labeling – Smartphone Price Intelligence Records

OtherDocumentClassification
I annotated and cleaned over 1,000 smartphone pricing records across 25 brands, systematically resolving ambiguous data points. Categorical labeling was performed to segment device features into tiers like budget, mid-range, and flagship. Documentation of feature engineering and annotation decisions was maintained throughout the project lifecycle. • Reduced missing-value rates from approximately 18% to 0% through targeted annotation. • Engineered domain-specific features with precise categorical labels. • Documented all annotation and feature derivation decisions for auditability. • Delivered structured outputs supporting downstream ML modeling.

I annotated and cleaned over 1,000 smartphone pricing records across 25 brands, systematically resolving ambiguous data points. Categorical labeling was performed to segment device features into tiers like budget, mid-range, and flagship. Documentation of feature engineering and annotation decisions was maintained throughout the project lifecycle. • Reduced missing-value rates from approximately 18% to 0% through targeted annotation. • Engineered domain-specific features with precise categorical labels. • Documented all annotation and feature derivation decisions for auditability. • Delivered structured outputs supporting downstream ML modeling.

2025 - 2025

Education

S

Siksha 'O' Anusandhan University

Bachelor of Technology, Computer Science

Bachelor of Technology
2022 - 2026
P

PVSS DAV Public School

Higher Secondary School Certificate, Science

Higher Secondary School Certificate
2020 - 2022

Work History

C

CNN + LSTM Hybrid (Academic)

Extreme Rainfall Prediction

Location not specified
2025 - Present