My name is Qixuan Wang, currently pursuing a Master of Science in Artificial Intelligence at Northwestern University, with a Bachelor’s degree in Applied Mathematics and Computational Sciences from Duke University and Duke Kunshan University. I was fortunate to be advised by Prof. Italo Simonelli during my undergraduate years. My current work focuses on speech processing, large language models, and diffusion models, with a strong foundation in cutting-edge AI technologies.

My research interests include probability theory, statistics, speech processing, and generative models. I am also interested in democratization of AI and entrepreneurship. My goal is to let everyone enjoy a better life and work more efficiently through human-centered AI. I have made more than 40 videos about various applications of generative AI. My bilibili* channel now has over 14k followers and my videos receive over 1 million views in total.

Email: qixuanwang2025 [at] u [dot] northwestern [dot] edu

Links: [CV] [中文简历] [GitHub ] [ResearchGate] [Hugging Face] [bilibili* ] [YouTube]

* bilibili is one of the most popular video-sharing platforms in China and it is often referred to as the Chinese version of YouTube

News

• [Sep. 2024] I started my journey at Northwestern University.
• [Apr. 2024] I was invited by Himalaya to participate in a live stream about AI companions. About 1,000 people watched the live stream. See the poster here.
• [Mar. 2024] I was interviewed by South Reviews, a famous politics and economics magazine in China, and shared my thoughts on the recent development of AI speech technology. Check out the Chinese article here!
• [Mar. 2024] My text-to-speech project Bark Voice Cloning has received over 2,000 stars on GitHub!
• [Feb. 2024] We are thrilled to launch our most powerful AI song cover generator ever with Shanghai Artificial Intelligence Laboratory! Just need to provide the name of a song and our application running on an A100 GPU will handle everything else. Check it out on our website (please click “EN” in the first tab of our website to see the English version)!

Research Interests

• Probability theory: The Borel-Cantelli Lemma and probabilistic methods
• Extreme value theory: Order statistics and the growth rate of the partial maxima
• Speech processing: Speech synthesis/text to speech and voice conversion
• Generative models: Text-to-image diffusion models and large language models
• Electrical engineering: Software and hardware systems and battery systems

Publications/Preprints

• An Elementary Proof of the Law of Iterated Logarithm for Minima and New Extensions of the Borel-Cantelli Lemma
  Italo Simonelli and Qixuan Wang
  Under Review (2022)
  Listed on SSRN’s Top Ten download list for Probability & Statistics eJournal

Talks

• The Sunflower Lemma: Understanding Highly Regular Patterns in a Large Uniform Family
  DKU Discrete Math Seminar
  November 24, 2023 [Recording]

• The Borel-Cantelli Lemma and the Growth Rate of Partial Maxima
  DKU Discrete Math Seminar
  March 24, 2023 [Slides]

• The Probabilistic Method: The Basic Method and the Local Lemma
  DKU Discrete Math Seminar
  September 23, 2022 [Slides]

Projects

• Bark Voice Cloning and Voice Cloning for Chinese Speech
  Integrated Bark voice cloning with SambertHifigan for Chinese speech [Code] [Demo]

• ChatGLM2 Voice Cloning
  Enabled users to chat with any character they like: ChatGLM2+SadTalker+Voice Cloning [Code]

• An Improved Single Image Denoising Diffusion Model
  Supervised by Prof. Jian-Guo Liu
  Adopted the input perturbation method to the single image generation and proposed an improved version of the single image denoising diffusion model [Code]

Teaching Experience

Tutor in Real Analysis (MATH 308): Spring 2023
Tutor in Probability and Statistics (MATH 206): Spring 2023, Fall 2023, Spring 2024
Tutor in Probability and Statistics (MATH 205): Spring 2022, Fall 2022, Spring 2023, Fall 2023
Tutor in Calculus (MATH 105): Fall 2023, Spring 2024
Tutor in Introduction to Applied Statistical Methods (STATS 101): Spring 2022

Service and leadership

Founder of United Platform sponsored by DKU Innovation Incubator: From Fall 2021 to Spring 2022 [News]
Vice President of DKU Soccer Association: From Fall 2021 to Spring 2022 [News]
Director of Publicity of DKU Soccer Association: Spring 2021 [News]
Played for DKU Varsity Soccer Team: From Fall 2020 to Fall 2022 [News]