About Mingjing Xu
An informal profile of Mingjing Xu: CS PhD student at Swansea University working on multi-objective optimization, multimodal learning, trustworthy AI, and edge intelligence.
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Understanding PSMGD: Fast Multi-Objective Optimization with Periodic Gradient Weights
A technical explanation of PSMGD, covering multi-objective optimization, gradient conflict, periodic stochastic multi-gradient descent, convergence intuition, backpropagation complexity, and key empirical findings.
2026-06-04
Speaking the Language of Probability-From Classifier Evaluation to Generative Classifiers
Study notes connecting classifier accuracy, confusion matrices, precision, recall, ROC/AUC, generative classifiers, Gaussian class-conditional models, sigmoid/softmax, LDA, and QDA.
2025-10-30
Non-academic notes from my PhD journey far from home
A brief personal note about the difficult start to 2025, withdrawing from RIT, and keeping perspective during a PhD journey far from home.
2024-01-26
DL study
Notes on revisiting machine learning and deep learning with Dive into Deep Learning, PyTorch and conda setup, GPU environments, and ART/WiFi adversarial robustness tooling.
2023-03-01
Tiny AI stories
Personal notes on early ChatGPT and AI-tool experiences, including learning advice, coding productivity, academic writing, debugging, and end-to-end ML assignment workflows.
2022-12-09
Personal thoughts of the academic
Personal academic notes on reading papers efficiently, understanding paper structure, building research taste, using Zotero, writing with LaTeX, and preparing arXiv submissions.
2022-11-08
Convolutional neural networks in DL
A beginner-friendly study note on convolutional neural networks, covering CNN intuition, image matrices, convolution filters, feature maps, and fully connected layers.
2022-10-06
Git & GitHub
A practical Git and GitHub command notebook covering clone, init, add, commit, log, checkout, reset, branch, merge, push, pull, and common remote-push troubleshooting.
2022-09-29
Memory in HK & CUHK
A photo diary of my 2021-2022 year at CUHK and in Hong Kong, covering arrival, coursework, friends, hikes, research pressure, campus life, and quiet leaving moments.
2022-09-19
About Mingjing Xu
An informal profile of Mingjing Xu: CS PhD student at Swansea University working on multi-objective optimization, multimodal learning, trustworthy AI, and edge intelligence.
2022-09-19
How to build your own website
A running note on building and maintaining this Hexo + GitHub Pages website, including setup links, common bugs, Hexo commands, deployment flow, image handling, Markdown, and LaTeX tips.
2022-09-19