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GioiaZheng/README.md

Gioia Zheng

B.Sc. in Applied Computer Science & Artificial Intelligence Sapienza University of Rome · Italy

Email · LinkedIn · LeetCode · TryHackMe · GitHub

Overview

I am an undergraduate student in Applied Computer Science and Artificial Intelligence at Sapienza University of Rome.

My work focuses on building practical, production-oriented systems at the intersection of:

  • Information Retrieval & Search
  • Machine Learning Systems
  • Backend Engineering

I am particularly interested in designing end-to-end pipelines that integrate retrieval, ranking, and model inference with scalable and reliable backend infrastructure.

Current Work

  • Developing an end-to-end Question Answering system on the MS MARCO dataset (BM25 retrieval · FAISS indexing · transformer-based reranking)

  • Designing and experimenting with Retrieval-Augmented Generation (RAG) pipelines

  • Backend and software engineering experience through industry internship (Idearia)

  • Continuous training in algorithms, data structures, and security fundamentals

Technical Skills

Programming Languages

  • Python · Go · JavaScript · SQL

Machine Learning & Data Systems

  • PyTorch · Scikit-learn · OpenCV
  • Information Retrieval (BM25, FAISS)

Backend & Engineering

  • REST APIs · SQLite · Docker · Git
  • Scalable system design (fundamentals)

Frontend (Working Knowledge)

  • Vue.js · React Native

Security Practice

  • TryHackMe (Pre-Security · Intro to Cyber Security · hands-on labs)

Engineering Interests

  • Retrieval systems and ranking pipelines
  • Scalable ML-backed applications
  • Backend architecture and API design
  • Secure and reliable software systems

Languages

  • English (Fluent)
  • Italian (Native)
  • Chinese (Native)
  • German (Beginner)

Focused on building robust systems that combine learning-based methods with solid engineering.

Pinned Loading

  1. msmarco-genqa msmarco-genqa Public

    RAG-based search question answering system on MS MARCO with BM25 retrieval, FAISS indexing, and transformer reranking.

    Jupyter Notebook 10

  2. go-chat-system go-chat-system Public

    Full-stack chat service built with Go, SQLite, and Vue.js featuring authentication, persistent messaging, and REST APIs.

    Vue 4

  3. handwritten-ocr-system handwritten-ocr-system Public

    Deep learning-based handwritten OCR system using CNN-RNN-CTC with evaluation via CER/WER metrics.

    Python 7

  4. CiboCompass CiboCompass Public

    Full-stack mobile app (React Native + Go) with REST API, offline-first sync, and cultural-aware food exploration

    JavaScript 7

  5. Leetcode-Solutions Leetcode-Solutions Public

    Structured Python implementations of LeetCode problems with automated tracking, algorithm notes, and reusable patterns for interview preparation.

    Python 15 3

  6. cybersecurity-learning cybersecurity-learning Public

    Python 1