Research Fellow · Show Lab, NUS

Ke Sun

I am a Research Fellow at Show Lab, National University of Singapore, working with Prof. Mike Zheng Shou. I received my M.S. and Ph.D. from Xiamen University (MAC Lab), advised by Prof. Rongrong Ji, and I have been a visiting scholar at Westlake University with Prof. Yue Zhang, studying AI-generated text detection and paper originality.

My research spans AIGC detection across text, images and video — face forgery & deepfake detection, LLM-generated text detection, and multimodal learning. The goal: make AIGC controllable and manageable. Previously a research intern at Tencent YouTu and CATL.

I'm also a small content creator, sharing hands-on tips for using AI — follow me as 可lip on Douyin, RedNote and Bilibili.

Now AIGC detection · face forgery & deepfakes · LLM-generated text
Next video generation · forgery detection · embodied intelligence — let's talk
01

News

02

Publications

Journal
CamoDiffusion — TPAMI 2024

Conditional Diffusion Models for Camouflaged and Salient Object Detection

Ke Sun, Zhongxi Chen, Xianming Lin, Hong Liu✉, Xiaoshuai Sun, Rongrong Ji

TPAMI 2024 Cited by 197
Continual face forgery detection — IJCV 2024

Continual Face Forgery Detection via Historical Distribution Preserving

Ke Sun, Shen Chen, Taiping Yao, Xiaoshuai Sun, Shouhong Ding, Rongrong Ji✉

IJCV 2024 Cited by 37
Conference
Late-stage stability for AI text detection

When AI Settles Down: Late-Stage Stability as a Signature of AI-Generated Text Detection

Ke Sun, Guangsheng Bao, Han Cui, Yue Zhang✉

EMNLP 2026 Findings Cited by 4
Prototype-based routing for text detection — ICML 2026

Minimizing Mismatch Risk: A Prototype-Based Routing Framework for Zero-shot LLM-generated Text Detection

Ke Sun, Guangsheng Bao, Han Cui, Yue Zhang✉

ICML 2026 Cited by 3
Visual-linguistic face forgery detection — CVPR 2025

Towards General Visual-Linguistic Face Forgery Detection

Ke Sun, Shen Chen, Taiping Yao, Ziyin Zhou, Jiayi Ji, Xiaoshuai Sun✉, Chia-Wen Lin, Rongrong Ji

CVPR 2025 Cited by 96
DiffusionFake — NeurIPS 2024

DiffusionFake: Enhancing Generalization in Deepfake Detection via Guided Stable Diffusion

Ke Sun, Shen Chen, Taiping Yao, Hong Liu✉, Xiaoshuai Sun, Shouhong Ding, Rongrong Ji

NeurIPS 2024 Cited by 89
StealthDiffusion — ACM MM 2024

StealthDiffusion: Towards Evading Diffusion Forensic Detection through Diffusion Model

Ziyin Zhou*, Ke Sun*, Zhongxi Chen, Huafeng Kuang, Xiaoshuai Sun✉, Rongrong Ji

ACM MM 2024 Cited by 27
Self-information attention — ECCV 2022

An Information Theoretic Approach for Attention-Driven Face Forgery Detection

Ke Sun, Hong Liu, Taiping Yao, Xiaoshuai Sun, Shen Chen, Shouhong Ding, Rongrong Ji✉

ECCV 2022 Cited by 77
Dual contrastive learning — AAAI 2022

Dual Contrastive Learning for General Face Forgery Detection

Ke Sun, Taiping Yao, Shen Chen, Shouhong Ding✉, Jili Lin, Rongrong Ji✉

AAAI 2022 Cited by 324
Learning to weight — AAAI 2021

Domain General Face Forgery Detection by Learning to Weight

Ke Sun, Hong Liu, Qixiang Ye, Yue Gao, Jianzhuang Liu, Ling Shao, Rongrong Ji✉

AAAI 2021 Cited by 210
03

Side Projects

Besides research, I also love building products — some free, some paid. Everyone is welcome to use them.

checkai.space
CheckAI landing page — AI Detection, Fix as You Go

01 · Research → Product

CheckAI

AI detection, fix as you go.

My detection research, productized. Full-modality AIGC detection for text, image and video, reporting word- and sentence-level forgery rates instead of one opaque score — then a built-in humanizer rewrites exactly the flagged spans to remove the “AI flavor” while keeping the meaning. Ships with a browser extension and a public API.

5,000+Users
300,000+Detections served
Text · Image · VideoHumanizer Browser extensionOpen API
speakkin.com
SpeakKin — the family in a voice, always there

02 · For Grandma

SpeakKin

The family in a voice, always there.

My grandmother is nearly 90 and lives with severe Alzheimer’s. I fine-tuned a VoxCPM voice model on my own childhood voice, wired it to an agent that remembers her life story, and put it inside a XiaoZhi ESP32 speaker — so “little me” can chat with her in real time, endlessly and patiently. It is now a small public service: any family can clone a voice, write down an elder’s memories, and set up a companion of their own.

“That afternoon, Grandma said more than she had in the whole week before.” — my mom, after grandma’s first afternoon with it
Agent + memoryVoxCPM2 TTS Voice cloningXiaoZhi ESP32
paperdance.org
PaperDance — a TikTok-style feed of arXiv papers

03 · Research Feed

PaperDance

Swipe through arXiv like short videos.

A mobile-first paper recommendation feed that lets you swipe arXiv papers the way you swipe TikTok. Describe your research interests in plain words, and a daily pipeline turns fresh arXiv papers into full-screen cards — one-line takeaway, key figure, abstract — ranked by full-text relevance and recency. Like, bookmark and comment as you scroll; your library syncs across devices and exports to BibTeX, CSV or Markdown.

250,000+arXiv papers
3,000+Paper views a week
Daily arXiv pipelineFull-screen cards Mobile-firstBibTeX export
embodiedterms.com
Embodied AI Glossary — 2,926 terms in 14 categories

04 · Vibe Coded

Embodied AI Glossary

The vocabulary of embodied AI, explained for newcomers.

A vibe-coded glossary for people new to embodied AI. The categories follow a learning path: first the robot body — form factors, parts, motion, control, perception — then tools and simulation, data, training and models, and finally the companies and the industry’s own jargon. Entries come with a one-line definition, a fuller explanation, a worked example and sources, and search works in English or Chinese.

2,900+Terms explained
14Categories
Embodied AIEnglish · Chinese Learning pathSourced entries

05 · WeChat Mini Program

Check-in Together

Habit streaks are better with friends.

A WeChat mini-program where a group commits to one shared task and checks in together — everyone sees everyone’s streak, so nobody wants to be the one who breaks it. Simple, social, and surprisingly sticky.

20,000+Users
WeChat Mini ProgramSocial habits
04

Awards & Service

Honors & Awards
  • DeepFake Detection Challenge (DFDC), Gold Medal (9 / 2265) — team “Detective Cauchy” page
  • Chalearn Face Presentation Attack Detection Challenge @ ICCV 2021, 2nd place — team We Only Look Once page
  • China Association for Science and Technology Young Talent Support Project
  • Technology Construction Award, Tencent YouTu, 2022
  • National Award, 2019
Academic Service
  • ICML 2026 Silver Reviewer
  • Conference reviewer: CVPR, ICCV, ECCV, NeurIPS, ICML, ICLR, AAAI, ACL, ICRA
  • Journal reviewer: TPAMI, IJCV, TIFS, TIP, TCSVT, SPL, PR