Sagar Mattikere Anand - Graph-Based RAG Agent for Secure Data Intelligence (EcoGraph-RAG)

Q: Where is Sagar based?

Sagar is based in Marburg, Germany .

Q: What languages does Sagar speak?

Sagar speaks the following languages: English (Advanced), German (Elementary) .

Q: How many years of experience does Sagar have?

Sagar has at least 2 years of experience. During this time, Sagar has worked in at least 4 different roles and for 2 different companies . The average length of individual experience is 1 year and 7 months . Note that Sagar may not have shared all experience and actually has more experience.

Q: What is Sagar's latest experience?

Sagar's most recent position is Graph-Based RAG Agent for Secure Data Intelligence (EcoGraph-RAG) at Philipps University Marburg .

Q: What companies has Sagar worked for in recent years?

In recent years, Sagar has worked for Philipps University Marburg and Dayananda Sagar University .

Q: Which industries is Sagar most experienced in?

Sagar is most experienced in industries like Automotive , Education , and Healthcare . Sagar also has some experience in Information Technology (IT) .

Q: Which business areas is Sagar most experienced in?

Sagar is most experienced in business areas like Information Technology (IT) , Business Intelligence , and Research and Development (R&D) .

Q: What is Sagar's education?

Sagar holds a Master in Computer Science from Philipps University Marburg and a Bachelor in Computer Science from Dayananda Sagar University .

Q: Does Sagar have any certificates?

Sagar has 1 certificate : British Airways- Data Science Job Simulation .

Recommended expert

Marburg, Germany

Experience

Oct 2025 - Present

5 months

Marburg, Germany

Graph-Based RAG Agent for Secure Data Intelligence (EcoGraph-RAG)

Philipps University Marburg

Designed GraphRAG system combining semantic vectors (Chroma) + knowledge graphs (NetworkX/Neo4j) for multi-hop Q&A on climate policy docs.
Deployed Llama 3/Gemma via Ollama for $0-cost local inference; achieved ~95% entity-relation extraction accuracy.
Built ingestion pipeline for PDFs + 48k-row CSVs; applied grouped median imputation and fixed data sparsity.

Jul 2025 - Aug 2025

2 months

Twitter Sentiment Extraction with BERT + Explainability

Fine-tuned BERT-base on 50k+ tweets for multi-class sentiment (85% F1); deployed via Hugging Face Transformers.
Integrated LIME/SHAP to generate human-readable feature attributions; visualised in Streamlit for stakeholder review.

May 2024 - Jun 2025

1 year 2 months

EV Insights ML API with Docker

Deployed production-ready Flask API in Docker; predicted EV range with Random Forest.
Built ETL pipeline; served real-time insights to the dashboard.

Oct 2022 - Jun 2023

9 months

Bengaluru, India

Research Assistant

Dayananda Sagar University

Coordinated comparative analysis of algorithms (SVM, Logistic Regression, Random Forest) to optimise diagnosis; achieved model evaluation of 96.73% using SVM models on reference datasets.
Applied Vgg16 transfer learning for feature extraction and optimised deep learning model performance on limited medical imaging data to distinguish between benign and malignant tumours.
Assisted in synthesising research outcomes and contributed to manuscript drafting using LaTeX and Microsoft Office, supporting publication for ICRTC-2023.
Engineered data pipelines using Python and TensorFlow over a 6-month project to automate preprocessing and augmentation of 10,000+ medical imaging records, reducing manual data handling by 70% and accelerating downstream model training cycles.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Education (1 year), Automotive (1 year), Information Technology (0.5 years), and Healthcare (0.5 years).

Education

Automotive

Information Technology

Healthcare

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (2.5 years), Business Intelligence (1.5 years), and Research and Development (1 year).

Information Technology

Business Intelligence

Research and Development

Summary

Master's student specialising in AI/ML with expertise in ML, RAG systems and LLM deployment. Proven track record developing production-ready AI solutions for threat detection and secure data intelligence applications.

Skills

Programming & Ml — Python (Advanced), Machine Learning (Pandas, Scikit-learn), Ai Models (Rag, Langchain), Html, Css
Database & Devops — Sql, Postgresql, Docker, Git, Api
Soft Skills — Good Communication Skills, Independent Work, Problem Solving Skills, Self-directed

Languages

English

Advanced

German

Elementary

Education

Apr 2024 - Present

Philipps University Marburg

M.Sc. in Computer Science · Computer Science · Marburg, Germany

Oct 2019 - Jun 2023

Dayananda Sagar University

B.Tech in Computer Science · Computer Science · India

Certifications & licenses

British Airways- Data Science Job Simulation

Forage

Profile

Created

November 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Sagar based?

Sagar is based in Marburg, Germany.

What languages does Sagar speak?

Sagar speaks the following languages: English (Advanced), German (Elementary).

How many years of experience does Sagar have?

Sagar has at least 2 years of experience. During this time, Sagar has worked in at least 4 different roles and for 2 different companies. The average length of individual experience is 1 year and 7 months. Note that Sagar may not have shared all experience and actually has more experience.

What roles would Sagar be best suited for?

Based on recent experience, Sagar would be well-suited for roles such as: Graph-Based RAG Agent for Secure Data Intelligence (EcoGraph-RAG), Twitter Sentiment Extraction with BERT + Explainability, EV Insights ML API with Docker.

What is Sagar's latest experience?

Sagar's most recent position is Graph-Based RAG Agent for Secure Data Intelligence (EcoGraph-RAG) at Philipps University Marburg.

What companies has Sagar worked for in recent years?

In recent years, Sagar has worked for Philipps University Marburg and Dayananda Sagar University.

Which industries is Sagar most experienced in?

Sagar is most experienced in industries like Automotive, Education, and Healthcare. Sagar also has some experience in Information Technology (IT).

Which business areas is Sagar most experienced in?

Sagar is most experienced in business areas like Information Technology (IT), Business Intelligence, and Research and Development (R&D).

What is Sagar's education?

Sagar holds a Master in Computer Science from Philipps University Marburg and a Bachelor in Computer Science from Dayananda Sagar University.

Does Sagar have any certificates?

Sagar has 1 certificate: British Airways- Data Science Job Simulation.

What is the availability of Sagar?

Sagar is immediately available full-time for suitable projects.

What is the rate of Sagar?

Sagar's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.