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Vuk Cvetković

Projects

Work I can write about in full, with the architecture and the results rather than a screenshot. Each one gets a page of its own.

    • React
    • NestJS
    • FastAPI
    • Ultralytics
    • ASP.NET Core
    • ML.NET

    2026Master’s thesis, Faculty of Electronic Engineering in Niš

    Comparative object detection system

    The same image through two machine learning ecosystems, answered in one format.

    My master’s thesis. The same image runs through a YOLOv8m model in Python and an ML.NET model in .NET, both behind one gateway that answers in a single format, so one React frontend draws either result. Reannotating the dataset took YOLOv8m to 0.916 mAP@0.5 against 0.748 for ML.NET.

    0.916mAP@0.5 for YOLOv8m, against 0.748 for ML.NET

    Read the write-upFrontendGatewayPython service.NET service

    • C#
    • .NET
    • WCF
    • Windows Forms

    2023Bachelor’s thesis, Faculty of Electronic Engineering in Niš

    Encryptix

    Three ciphers behind one service, and a hash at both ends to prove the file came back intact.

    My bachelor’s thesis. A desktop client hands a whole folder to a WCF service, which encrypts every file with AES, RC6 or XXTEA. I wrote RC6 and XXTEA from their specifications instead of taking them from a library. The service records a SHA-512 hash before and after each pass, so the round trip can be proved rather than assumed. Processing the files in parallel took a 150-file pass from 68.91 to 44.16 seconds.

    44.16 s150 files in parallel, down from 68.91 s

    Read the write-upSource

    • Python
    • Tkinter
    • Pyshark
    • Matplotlib

    2024Seminar paper, Faculty of Electronic Engineering in Niš

    Network Traffic Analyzer

    A packet capture read once, then asked twelve questions about every packet in it.

    A seminar paper on traffic analysis, with a desktop application to demonstrate it. It opens a .pcapng capture through Pyshark, walks every packet layer by layer, and pulls out what each protocol carries - HTTP headers, DNS queries, TCP flags, FTP credentials - into an expandable tree, alongside a chart of how the traffic divides up by protocol.

    Read the write-upSource

    • React Native
    • Expo
    • NestJS
    • MongoDB

    2024Seminar paper on e-government systems, Faculty of Electronic Engineering in Niš

    Easy Breathe

    Serbia’s public pollen readings, narrowed to the ones a single person needs to know about.

    A mobile app on top of open government data. Serbia’s environmental agency publishes pollen measurements from stations across the country, and the app mirrors them into its own database on a schedule, then narrows them to the allergens one person has selected, within a radius they choose. It shows the result on a map, by concentration level, and as a push notification when a level climbs.

    Read the write-upMobile appAPI

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