Computer engineer & scientist · Applied machine learning for healthcare

Albara AH RamliPh.D.

I build machine-learning systems that read human movement: one phone at the waist, a hundred samples a second, turned into clinical measures of how a person walks.

A computer engineer by training, with an M.S. and Ph.D. in Computer Science from UC Davis and a postdoctoral fellowship at UC Davis Health. My work spans wearable sensing, gait analysis and deep learning, and the full-stack systems that carry them from the lab to patients.

● Accelerometer · vertical axis · 100 Hz · waist-worn steps 0000 cadence 109 spm
Simulated signal. It illustrates the gait-event detection at the core of Walk4Me, where every marked peak is a step.
500+
citations on Google Scholar
10
papers, preprints and a dissertation
84,000+
users of the apps I have published
211
students mentored across 53 senior-design teams

About

From core networks to clinical AI

I am Dr. Albara AH Ramli, a computer engineer and computer scientist. My first degree is a B.Sc. in Computer Engineering from the Faculty of Engineering at the University of Tripoli, Libya. I then earned my M.S. and Ph.D. in Computer Science at the University of California, Davis, advised by Prof. Xin Liu and co-advised by Prof. Erik Henricson, then spent three years as a Postdoctoral Scholar in the Neuromuscular Research Lab at UC Davis Health.

My research applies classical and deep learning to IoT devices, human activity recognition and healthcare. The result I am proudest of is Walk4Me, a system that turns wearable sensor data into digital outcome measures for children with Duchenne muscular dystrophy and for stroke and ALS patients.

I was an engineer before I was a researcher: IP/MPLS core networks, billing systems, and a software company I founded. That engineering background is why I still build the whole stack myself, from the sensor app to the model to the server it runs on.

Research interests

Applied machine learning Deep learning Gait analysis Human activity recognition Wearable sensing Digital health Internet of Things Network security Polyglot programming

Education

  • Ph.D.

    Computer Science

    University of California, Davis

    Dissertation: Applied Machine Learning in Healthcare Systems: Classical and Deep Learning Approach for Gait Analysis and Activity Recognition (2023)

  • M.S.

    Computer Science

    University of California, Davis

    Thesis project: SBR Polyglot and Peer Platforms on IoT over Networks (2018)

  • B.Sc.

    Computer Engineering

    Faculty of Engineering, University of Tripoli, Libya

    Later: Intensive English Program, UC Davis Extension

Research

Selected work

Healthcare AI first, with earlier work in vision, video streaming, networking and security.

Flagship · Healthcare AI

Walk4Me: telehealth community mobility assessment

An automated system for early diagnosis and tracking of disease progression. A single smartphone accelerometer worn near the body's center of mass captures how a child walks; machine-learning models then extract the temporospatial gait features clinicians use, and separate children with Duchenne muscular dystrophy from typically developing peers. Validated against expert observers on the 6-minute walk test, 100-meter run/walk and free walking.

  1. CaptureiOS app streams accelerometer and gyroscope data at 100 Hz
  2. DetectGait events and steps found automatically across walking and running speeds
  3. MeasureStep count, cadence, step length, speed and distance traveled
  4. ClassifyClassical ML and deep learning identify disordered gait and its progression
Hz

Healthcare AI · Signal processing

FFT for rapid step and distance estimation in DMD

A fast Fourier-transform approach that estimates step count, frequency, length, velocity and distance from a waist-worn accelerometer, validated against ground truth and machine-learning baselines.

1011

Computer vision · Assistive tech

BWCNN: Blink to Word

A real-time convolutional network that reads eye-blink patterns and maps them to words, giving people with ALS a way to communicate. Runs on IoT devices, with ResNet, DenseNet, InceptionV3 and SqueezeNet compared for accuracy against latency.

Healthcare AI · Stroke

Identifying stroke-related gait features

Deep learning on multi-camera motion capture and force-plate data to pinpoint critical gait impairments, tell the more and less affected limbs apart, and test whether force plates can be left out. A companion project detects hemorrhagic stroke from wearable sensors in real time.

Wearables · ICU

Human activity recognition for healthcare

An overview of activity recognition with wearable sensors, grounded in two of our own systems: early-mobility recognition for intensive-care patients and gait analysis for DMD.

Virtual reality · Networking

Motion prediction for 360-degree video

An Oculus-based platform that collects head-orientation data, used to predict where a viewer will look next and transmit only that part of the video, saving bandwidth.

Reinforcement learning · Networking

Cross-layer congestion control and adaptive bitrate

A reinforcement-learning framework that generates adaptive-bitrate and congestion-control algorithms together, by modeling how the transport and application layers affect each other. Built on reproductions of Pensieve and Pantheon.

Also

  • Privacy
    Device identification in wireless environments. A data-driven framework that recognizes how many devices are actively transmitting nearby, and what type each one is.
  • Security
    System security and policy protection. Verifying that the security requirements of different companies on one network compose safely, using the Bell-LaPadula and Biba models.
  • Systems
    SBR Polyglot. A platform for combining programming languages in a single program; my master's thesis project.
  • Measurement
    The 2016 Dyn cyberattack. Measuring and analyzing the network performance degradation it caused.

Publications

Papers & writing

Full, current list on Google Scholar.

  1. 2025

    Harnessing Fast Fourier Transform for Rapid Community Travel Distance and Step Estimation in Children with Duchenne Muscular Dystrophy

    Erik K. Henricson, Albara AH Ramli

    JournalSensors, 25(10), 3234

  2. 2024

    Gait Event Detection and Travel Distance Using Waist-Worn Accelerometers across a Range of Speeds: Automated Approach

    Albara AH Ramli, Xin Liu, Kelly Berndt, Chen-Nee Chuah, Erica Goude, Lynea B. Kaethler, Amanda Lopez, Alina Nicorici, Corey Owens, David Rodriguez, Jane Wang, Daniel Aranki, Craig M. McDonald, Erik K. Henricson

    JournalSensors, 24(4), 1155

  3. 2024

    Gait Characterization in Duchenne Muscular Dystrophy (DMD) Using a Single-Sensor Accelerometer: Classical Machine Learning and Deep Learning Approaches

    Albara AH Ramli, Xin Liu, Kelly Berndt, Erica Goude, Jiahui Hou, Lynea B. Kaethler, Rex Liu, Amanda Lopez, Alina Nicorici, Corey Owens, David Rodriguez, Jane Wang, Huanle Zhang, Daniel Aranki, Craig M. McDonald, Erik K. Henricson

    JournalSensors, 24(4), 1123

  4. 2023

    Walk4Me: Telehealth Community Mobility Assessment, An Automated System for Early Diagnosis and Disease Progression

    Albara AH Ramli, Xin Liu, Erik K. Henricson

    PreprintarXiv:2305.05543

  5. 2023

    Applied Machine Learning in Healthcare Systems: Classical and Deep Learning Approach for Gait Analysis and Activity Recognition

    Albara AH Ramli

    DissertationPh.D., University of California, Davis

  6. 2022

    A Deep Learning Approach for Identification of Stroke-related Gait Features

    Albara AH Ramli, Theresa E. McGuirk, Xin Liu, Carolynn Patten

    AbstractResearch Symposium, Center for Neuroengineering & Medicine, UC Davis

  7. 2021

    An Overview of Human Activity Recognition Using Wearable Sensors: Healthcare and Artificial Intelligence

    Rex Liu*, Albara AH Ramli*, Huanle Zhang, Erik Henricson, Xin Liu (* equal contribution)

    ConferenceInternational Conference on Internet of Things (ICIOT 2021), pp. 1-14

  8. 2021

    Early Mobility Recognition for ICU Patients Using Accelerometers

    WorkshopAIoT Workshop at KDD 2021

  9. 2020

    BWCNN: Blink to Word, a Real-Time Convolutional Neural Network Approach

    Albara AH Ramli, Rex Liu, Rahul Krishnamoorthy, Vishal I B, Xiaoxiao Wang, Ilias Tagkopoulos, Xin Liu

    ConferenceInternational Conference on Internet of Things (ICIOT 2020), pp. 133-140

  10. 2020

    An Automated System for Early Diagnosis, Severity and Progression Identification in Duchenne Muscular Dystrophy: A Machine Learning and Deep Learning Approach

    Albara AH Ramli, Alina Nicorici, Poonam Prasad, Jiahui Hou, Craig McDonald, Xin Liu, Erik Henricson

    Abstract7th Annual UC Davis Health Human Genomics Symposium

  11. 2018

    SBR Polyglot and Peer Platforms on IoT over Networks

    Albara AH Ramli

    Thesis projectM.S., University of California, Davis

  12. 2016

    Shooting a Moving Target: Motion-Prediction-Based Transmission for 360-Degree Videos

    Yanan Bao, Huasen Wu, Tianxiao Zhang, Albara AH Ramli, Xin Liu

    ConferenceIEEE International Conference on Big Data (BigData 2016)

  13. 2016

    Viewing 360 Degree Videos: Motion Prediction and Bandwidth Optimization

    Yanan Bao, Huasen Wu, Albara AH Ramli, Bradley Wang, Xin Liu

    PosterIEEE International Conference on Network Protocols (ICNP 2016)

  14. 2007

    A series on programming with Turbo C++, Visual C++ and OpenGL

    Albara Ramli

    BooksIn Arabic, free to download with source code

Experience

Research, industry, and a company of my own

Postdoctoral Scholar
Researcher
Teaching Assistant
Symantec
Hatif Libya
Founder
Aljeel Aljadeed
20102014201820222026
The career at a glance, 2010 to 2026. Grey: engineering roles before 2015. Dark: UC Davis and Symantec.
  1. Sep 2023 - Jul 2026

    Postdoctoral Scholar

    UC Davis Health · Department of Physical Medicine & Rehabilitation · Neuromuscular Research Lab

    • Applied ML and AI to identify gait impairments in people with neuromuscular disorders, particularly muscular dystrophies.
    • Led data collection, processing and analysis under IRB-approved protocols, combining wearable sensor data with algorithmic modeling into digital outcome measures.
    • Developed and validated AI tools for quantitative gait analysis to support clinical trials, working alongside clinicians during patient visits.
    • Mentored undergraduate researchers and lab staff; presented at the Muscular Dystrophy Association's annual conference.
    • Selected for a UC system-wide initiative fostering interdisciplinary ALS research and international collaboration.
  2. Aug 2020 - Jun 2023

    Researcher

    UC Davis · Department of Computer Science · AI-based Sensing in Healthcare

    Classical and deep learning for IoT devices, human activity and healthcare systems, leading to the Walk4Me system for DMD, ALS and stroke patients. Worked across Computer Science, Physical Medicine & Rehabilitation, and the Alzheimer's Disease Research Center in the Department of Neurology.

  3. Jan 2016 - Jun 2023

    Teaching Assistant, Senior Design Projects

    UC Davis · Department of Computer Science · ECS 193A/B

    Mentored and advised 211 students in 53 teams through their capstone projects, helped with interactive grading of 635 students, and reviewed 520 client proposals. More under teaching.

  4. Jun 2017 - Sep 2017

    Software Developer, Intern

    Symantec · CSS Cyber Insurance · Mountain View, California

    Built a real-time, large-scale system for gathering and analyzing network data. Modeled cross-layer outages from active and passive measurements, IANA registries and Norton DNS logs, and developed a live measurement platform that baselines normal behavior for anomaly and outage detection.

  5. Jul 2013 - Oct 2014

    Computer Engineer

    Hatif Libya Communications · Billing Department

    Developed and enhanced the Oracle-based billing system, produced the reporting behind management decisions, and kept critical data accurate and secure.

  6. May 2012 - Oct 2014

    Founder

    Attatweer IT & Communications Ltd

    Founded and ran a software company delivering document-management, archiving, training-center, recruitment and official-document issuance systems. Clients included Mellitah Oil & Gas, the Ministry of Interior and the Ministry of Economy.

  7. Jan 2011 - May 2012

    Internet Services Engineer

    Aljeel Aljadeed for Technology · Next Generation Network

    Configured and troubleshot DNS and AAA services for the national Next Generation Network.

  8. May 2010 - Jan 2011

    IP/MPLS Core Network Engineer

    Aljeel Aljadeed for Technology · Next Generation Network

    Part of the team building new telecommunications infrastructure for the whole country; verified the high- and low-level designs of the optical-fiber topology.

Apps & products

Software people actually use

Side projects I design, build and run myself, mostly as a volunteer.

iOS · Android · Web

Iqamah Times

Prayer and iqamah times for mosques, with a live display that runs on a Raspberry Pi screen inside the mosque.

iOS · Android · Web

Qalun Mushaf series

مصحف القراء برواية قالون

A family of Quran apps in the Qalun, Hafs and Shu'bah narrations, plus a website to read in the browser or download as PDF.

Android

Quine-McCluskey

A logic-minimization tool for digital design students, implementing the Quine-McCluskey method.

Web tools & community projects

Teaching & mentoring

Seven years of senior design

From 2016 to 2023 I was the teaching assistant for ECS 193A/B, the UC Davis Computer Science capstone, where student teams build real products for real clients. Beyond advising teams, I rebuilt how the course runs: its website and client-proposal system, a peer-review system, a matcher that pairs students with projects, and an auto-scheduling tool for weekly meetings.

  • 211students mentored
  • 53teams advised to delivery
  • 635students in interactive grading
  • 520client proposals reviewed
One dot per student: 211 students in 53 teams (team sizes drawn evenly for simplicity).

Projects mentored

  • iCare
    Alzheimer's disease platform. A digital application promoting exercise and a healthy diet among older adults at risk of cognitive decline. Mentored nine students in mobile (Flutter), web (React) and backend teams.
  • BioPortal
    Animal health data platform. Connect, visualize, analyze and share animal health and management data. Mentored six students in mobile and web teams.
  • Covid-19
    Symptom Scientist platform. Mentored a two-person team building a cross-platform Flutter app.
  • AIBridge
    Volunteer instructor. A one-week in-person course at UC Davis, organized by the AI Institute for Next Generation Food Systems, helping undergraduates and non-technical graduate students complete their own AI project.

Talks

Talks & presentations

  1. 2024PosterGait characterization in Duchenne muscular dystrophyUCSF Innovation Ventures · Reinvigorating Innovation in ALS
  2. 2024PosterGait characterization in Duchenne muscular dystrophyMDA Clinical & Scientific ConferencePosters
  3. 2022TalkA Deep Learning Approach for Identification of Stroke-related Gait FeaturesCenter for Neuroengineering & Medicine, UC Davis · Research SymposiumSlides
  4. 2022TalkEnsemble learningUC DavisVideo
  5. 2022TalkAI-based Sensing for Healthcare ApplicationsCenter for Neuroengineering & Medicine, UC Davis · Lunch and Learn series
  6. 2021TalkAn Overview of Human Activity Recognition Using Wearable SensorsInternational Conference on Internet of Things (ICIOT 2021)Video
  7. 2021DemoHuman Activity Recognition through Wearable SensorsHealth data science brown bag talk
  8. 2021DemoDMD patient identification and ICU patient activity recognitionUC Davis Medical Center Machine Learning Working GroupVideo
  9. 2020TalkBWCNN: Blink to Word, a Real-Time Convolutional Neural Network ApproachInternational Conference on Internet of Things (ICIOT 2020)Video
  10. 2020TalkAn Automated System for Early Diagnosis, Severity and Progression Identification in DMD7th Annual UC Davis Health Human Genomics Symposium
  11. 2019TalkBACTGAN: Automatic Configuration Tuning for Software Systems with Generative Adversarial NetworksIEEE/ACM International Conference on Automated Software Engineering (ASE 2019)Video

Service, honors & skills

The rest of the record

Peer review

  • IEEE Internet of Things Journal · 2022 - present
  • Sensors · 2023 - present
  • Journal of Sensors · 2023 - present
  • Applied Sciences · 2024 - present

Awards & honors

  • Postdoctoral Fellowship · Department of Physical Medicine & Rehabilitation, UC Davis School of Medicine
  • Ph.D. and M.S. Scholarship · Libyan-North American Scholarship Program, Ministry of Higher Education & Scientific Research
  • GGCS Graduate Program Fellowship · Department of Computer Science, UC Davis

Skills

AI, data & health
Classical MLDeep learningNLPLLMsPyTorchTensorFlowKerasscikit-learnPandasNumPyHIPAA
Languages
PythonJavaCC++C#JavaScriptSwiftPHPSQLVBAssembly
Web
ReactNext.jsNode.jsExpressFlaskSpring BootTailwindBootstrapD3.jsRESTGraphQL
Data stores
PostgreSQLMySQLMongoDBPrisma
Cloud & DevOps
AWS · EC2, Lambda, S3GCPAzureDockerKubernetesCI/CDLinuxNginxApacheGit
Certifications
CITI · Biomedical ResearchCITI · Good Clinical PracticeRed Hat RH124 / RH134 / RH254Cisco CCNAAlcatel-Lucent NRS I

Contact

Let's work on something that matters.

albara [at] ramli.net

Email is the best way to reach me. Calls and video meetings by appointment.