Raul Valle · University of Florida · Gainesville, Florida

Machine Learning and Neuroengineering.

I build signal-processing and machine-learning systems for messy biological data: EEG state-space models, voltage-imaging event detection, and the research software that keeps experiments honest. I am a Ph.D. student in Electrical and Computer Engineering at the University of Florida.

Portrait of Raul Valle

Featured projects

The highest-signal project pages that explain what I am building and why it matters.

Diagram of Kernel Adaptive Memory: a sequence feeds radial context attention and learned persistent supports before a residual readout and optional online NLMS adaptation.
Research · sequence modeling · adaptive memory

Kernel Adaptive Memory: a transformer alternative for sequence modeling

A proposal for a transformer alternative: use a learned radial geometry for local context, a finite bank of persistent supports for reusable structure, and a lightweight online readout for adaptation after distribution shift.

Radial kernel attentionPersistent memory supportsTransformer comparisonOnline NLMS adaptation
Diagram of a hierarchical dynamical system: noisy observed signals generate compact latent trajectories used by a classifier.
Research · dynamical systems · classification

Latent-signal classification with hierarchical dynamical systems

Pipeline that maps noisy multichannel time-series observations to compact latent trajectories with a Hierarchical Linear Dynamical System (HLDS), then evaluates those trajectories for classification, separability, and stability.

Hierarchical Linear Dynamical System (HLDS)Latent-signal classificationTemporal representation learning
Frame from a zebrafish voltage imaging video.
Research · imaging · time-series detection

Zebrafish voltage imaging: event detection & interpretation

Pipeline for 2D voltage imaging videos that flags ‘events’ (fast, localized changes) using statistical detectors inspired by radar signal processing, producing maps and summaries for downstream analysis.

Voltage imaging (video)Event detectionStatistical detectors (CFAR-style)Quadratic Gamma Discriminator (QGD)
Plot representing adaptive filtering / time-series modeling.
Research tools · ML infra · reproducibility

Time-series ML experiment library

Reusable experiment scaffolding for time-series ML: standardized configs, runs, metrics, and plots so model comparisons are fair and repeatable.

Time-series modelingExperiment trackingGPU acceleration

Personal projects

Standalone projects with their own public homes, separate from the research archive.

Personal app

Ora

A training console for athletes and coaches: programs, diet tracking, progress reports, and coach review in one place.

Personal app

Gradus

A practice platform for STEM students built to find the exact idea you missed: attempt a problem, get targeted feedback, repair the gap, and prove it in a new context.

Latest writing and elsewhere

Diagram representing a state-space modeling pipeline for EEG.
Nov 1, 2025 · Research log

Why I care about state-space models for EEG

EEG work gets more informative when temporal structure is part of the model instead of something the pipeline averages away.

eegstate-space modelssignal processing