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    03 Spellchecker · Tufts University, 2021 · Nawaf's original Python, running live

     

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      Nawaf Alkhalifa

      AI Engineer

      Step into the 3D room

      About

      I'm a Computer Science graduate from King Saud University, where I graduated with First Class Honors and a 4.9/5.0 GPA. My work spans machine learning, computer vision, and applied AI, with a focus on turning technical ideas into practical systems.

      I've built models to detect undeveloped land across Riyadh using satellite imagery, developed an on-device voice emotion classifier for an iOS app I released on the App Store, and conducted AI research at ICTP in Italy exploring how neural networks can help explain decision-making in the brain. My work on satellite-based land detection also led to a peer-reviewed publication.

      Across research and product development, I'm interested in what happens when AI moves beyond the model itself and becomes something people can use, learn from, or make decisions with.

      Experience

      1. Jun – Aug 2026

        AI Researcher · ICTP

        Selected as one of 10 students from Saudi Arabia for the TRIL Fellowship at the UNESCO-affiliated International Centre for Theoretical Physics in Trieste, Italy, through the KAUST Academy AI Specialization Program. Conducting research at the intersection of AI and neuroscience: extending RNN-based function approximation to handle continuous inputs, moving decision-making models beyond simplified discrete grids, with the goal of interpreting real neurological processes and explaining the actions behind them.

        • Recurrent Neural Networks (RNNs)
        • Neural Networks
        • Computational Neuroscience
        • Mathematical Modeling
        • Scientific Research
        • Naive Bayes
      2. Jul – Aug 2025

        AI Foundation Program · Apple Developer Academy

        Selected as one of 66 participants in Saudi Arabia for the Apple Academy. Applied Challenge Based Learning to tackle workplace disengagement, a problem affecting an estimated 60% of employees and costing companies about $8.8 trillion a year. Designed the app in Figma and shipped Halah, an iOS mood and focus app built with Swift and Core ML for on-device inference. Presented the solution to Apple Academy mentors and international reviewers.

        • Challenge-Based Learning
        • Design Thinking
        • User Research
        • UI/UX Design
        • Figma
        • Swift
      Full history and volunteering on LinkedIn

      Projects

      The TerraVision dashboard home page.
      Dashboard analytics: vacant land by district.
      Dashboard map with a vacant plot and its area.

      2025 – 2026 · King Saud University

      TerraVision

      Detects undeveloped land across Riyadh using satellite imagery and machine learning.

      Inspired by Saudi Arabia's White Land fees policy, TerraVision uses satellite imagery and semantic segmentation to identify undeveloped land across Riyadh and track changes over time. I helped build the geospatial machine learning pipeline, from dataset preparation and annotation to augmentation and benchmarking 10 segmentation models. The resulting bilingual dashboard maps vacant land across Riyadh’s neighbourhoods and reports how much of each area is undeveloped, to support urban planning analysis.

      Published
      Peer-reviewed paper in Land (MDPI), 2026 · Scopus Q1
      Model performance
      95.6% IoU with SegFormer (MiT-B0), the best-performing model among 10 evaluated
      Potential application
      In discussions with Riyadh Municipality about adapting the project for city-wide land monitoring
      • Python
      • Computer Vision
      • Semantic Segmentation
      • SegFormer
      • Geospatial Analysis
      • ArcGIS Maps SDK
      Halah App Store image: Halah
      Halah App Store image: Discover which planet you are today
      Halah App Store image: Can’t tell? Halah reads the tone of your voice
      Halah App Store image: From goal to done, easily
      Halah App Store image: Pick your focus style
      Halah App Store image: Every step brings you closer
      Halah App Store image: Peace of mind is part of productivity
      Halah App Store image: Your Halah journey
      Halah App Store image: An assistant that reviews your week

      2025 · Apple AI Foundation Program, team project

      Halah هالة

      An iOS mood and productivity app that uses on-device AI to recognize emotion in your voice.

      Built during the Apple AI Foundation Program, Halah turns daily mood check-ins into an interactive experience, representing detected emotions as different planets. I developed a voice-based emotion classification model trained on a dataset assembled from public speech datasets and deployed it directly on the iPhone using Create ML and Core ML. The app also includes speech-to-text, personalized AI-generated reflections, focus timers and routine tracking.

      Shipped
      Released on the App Store in 2025
      Built in
      Five weeks, from user research and design to a working iOS app
      Selected
      One of 66 participants in Saudi Arabia
      • SwiftUI
      • Core ML
      • Create ML
      • Machine Learning
      • Python
      • Speech Recognition

      Summer 2021 · Tufts University

      Spellchecker

      Suggests the word you meant.

      Built in Python as my final project for Tufts University's Introduction to Python Programming course. The spellchecker uses a vocabulary of approximately 66,000 words to identify misspellings and rank candidate corrections using edit distance and word frequency, similar to the suggestions behind a search engine's "Did you mean?" feature.

      • Python
      • Algorithm Design
      • String Processing
      • Edit Distance

      Publications

      July 2026 · Land (MDPI) 15(7), 1271 · Scopus Q1

      Machine Learning-Based Detection of White Lands in Riyadh from Satellite Data

      Alfarhood, M., Alkhalifa, N., Abahussain, R., Almandah, I., Alabdan, O., & Alhussayen, F.

      Education

      1. 2022 – 2026

        B.Sc. Computer Science · King Saud University

        First Class Honors, GPA 4.9 / 5.0. Award for Academic Excellence (2023) for a 5.0 GPA and zero absences in the common first year; 3rd place in the BigOs competitive programming competition (2025).

      2. Summer 2021

        Tufts University, Massachusetts

        Math 10: Introduction to Python Programming (MATH-0010-BA). Final project: the Spellchecker.

      3. 2019 – 2020

        Saudi IOI National Team Trainee · Mawhiba

        One of 20 trainees nationally for the International Olympiad in Informatics program; 200+ problems solved under contest time limits.

      Certificates

      • Mathematics for Machine Learning and Data ScienceDeepLearning.AI, 60 hours
      • Python 3 Programming SpecializationUniversity of Michigan, 120 hours
      • Introduction to Data ScienceUniversity of Michigan, 34 hours
      • Forward ProgramMcKinsey & Company, 20 hours
      • Cybersecurity, Cryptology and ForensicsOxmedica, 112 hours
      • International Mathematical Olympiad trainingMawhiba, 180 hours

      Contact

      Open to AI engineering roles and research collaborations.

      © 2026 Nawaf Alkhalifa. 3D models from Sketchfab, modified.