Applied Mathematics & Computational Science

Peemapat Wongsriphisant, Ph.D.

Special Lecturer · Department of Mathematics and Computer Science · Chulalongkorn University

I design learning algorithms for data that never stops arriving. My models see each sample once, discard it, and keep learning within a small, fixed memory budget.

CV Email GitHub LinkedIn

Illustration of hyperellipsoid regions for three classes and the movement of their centres

Illustration: hyperellipsoid regions and how their centres move as samples are absorbed

Research

Streaming machine learning

Single-pass and discard-after-learn classifiers, incremental learning, and TinyML.

Applied NLP and LLMs

Retrieval-augmented generation, semantic search, and LLM evaluation, applied to national research funding data.

Graphs and bioinformatics

Graph kernels, network analysis, and mathematical modeling of biochemical compounds.

Featured

Paper · Information Sciences 2026

TRACED

Trend-adaptive classification with ellipsoidal disambiguation for resolving exterior and coincident regions in data streams.

Paper

Software · v0.4.1

spdal

A scikit-learn compatible Python library of single-pass hyperellipsoid classifiers. pip install spdal

spdal

Invited talk · IEEE Thailand 2026

Single-pass TinyAI on data streams

CSCRN Webinar EP.10: Tiny AI, organized by the IEEE Thailand Section and IEEE Computer Society Thailand Chapter.

Talks

About

I received my Ph.D. and M.S. in Applied Mathematics and Computational Science from Chulalongkorn University, advised by Assoc. Prof. Dr. Kitiporn Plaimas and Prof. Dr. Chidchanok Lursinsap, and my B.S. (First Class Honors) in Mathematics from Kasetsart University. I have held the Science Achievement Scholarship of Thailand (SAST) since 2014. Alongside my academic work, I build NLP and LLM systems for national research funding data as a data scientist.

News

Oct 2026 Released molprim 0.1.0, the implementation of my JCSSE 2020 paper on primitive structures and graph kernels.
Oct 2026 Released spdal 0.4.1, a scikit-learn compatible library of single-pass streaming classifiers.
2026 Started teaching Computer Programming (2301170/2301172) at Chulalongkorn University as a Special Lecturer.
2026 Completed Ph.D. in Applied Mathematics and Computational Science, Chulalongkorn University.
2026 TRACED published in Information Sciences.
Feb 2026 Invited talk at the IEEE Thailand Section CSCRN Webinar EP.10: Tiny AI.
2025 Paper published in Expert Systems with Applications.