Raul Valle · University of Florida · Gainesville, Florida

Signal processing, neuroengineering, and research systems that hold up outside the benchmark.

Raul Valle is a University of Florida Ph.D. student in Electrical and Computer Engineering working across signal processing, time-series machine learning, neuroengineering, and research software in Gainesville, Florida.

Featured projects

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

Diagram showing an EEG modeling pipeline.
Research · neurotechnology · time-series modeling

EEG-based sentiment & brain-state tracking (CNEL × Sony × LB3 dataset)

Pipeline that turns brain-wave recordings (EEG) into a small set of hidden time-series ‘states’ using a state-space model (Hierarchical Linear Dynamical System, HLDS), then evaluates those states for prediction and separability.

Electroencephalography (EEG)State-space modeling (HLDS)Sony–UF ‘LB3’ dataset (internal codename)
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
Plato’s Cave project logo.
Tools · language + structure · reproducibility

Plato’s Cave

System that extracts structured nodes (claims, evidence, limitations, etc.) from papers and scores them to support literature review and comparison across a collection.

Large language models (LLMs)Research toolingReproducibility

Recent writing

A public research journal for technical reflections, paper notes, and commentary on what is worth paying attention to.

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
Visual representing the Ergo biosignal acquisition project.
Oct 1, 2025 · Hardware

Building an EEG/EMG helmet from scratch

Biosignal research gets cleaner when hardware, firmware, and modeling are treated as one system instead of three separate concerns.

eegemghardwareneuroengineering
IEEE SPS at UF logo used for workshop and curriculum work.
Sep 1, 2025 · Teaching

Teaching analysis and ML with Jupyter at UF

Workshop design works better when theory and application are taught as one loop instead of two separate tracks.

teachingmachine learningjupyter

Proof and context

Publications

Talks, preprints, and official coverage

One page for papers, talk videos, UF profiles, and public references tied to the work on this site.

Research tracks

CNEL and IEEE SPS @ UF

The project archive is organized by lab-focused work and student-facing engineering work so the site stays legible.

Secondary portfolio

Selected photography

Portrait and character photography remains part of the site, but clearly secondary to the research and writing surfaces.