Overview Paper
- Yuqian Zhang, Qing Qu, John Wright (2020). From Symmetry to Geometry: Tractable Nonconvex Problems. In Submission, 2020.
Preprint – PDF – Slides – BibTex
- Qing Qu*, Zhihui Zhu*, Xiao Li, Manolis C. Tsakiris, John Wright, Rene Vidal (2020). Finding the Sparsest Vectors in a Subspace: Theory, Algorithms, and Applications. In Submission, 2020.
Preprint – PDF – Slides – BibTex
Sparse Blind Deconvolution
- Qing Qu, Xiao Li, Zhihui Zhu (2019). Exact Recovery of Multichannel Sparse Blind Deconvolution via Gradient Descent. SIAM Journal on Imaging Science, 13(3): 1630–1652, 2020. (NeurIPS’19, spotlight, top 3%).
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- Yenson Lau*, Qing Qu*, Han-wen Kuo, Pengcheng Zhou, Yuqian Zhang, and John Wright (2020). Short and Sparse Deconvolution — A Geometric Approach. International Conference on Learning Representations (ICLR’20), 2020.
Preprint – PDF – Code – Poster – Slides – Website – BibTex
- Qing Qu, Yuexiang Zhai, Xiao Li, Yuqian Zhang, and Zhihui Zhu (2020). Geometric Analysis of Nonconvex Optimization Landscapes for Overcomplete Learning. International Conference on Learning Representations (ICLR’20), 2020. (oral, top 1.9%)
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Phase Retrieval
Sparse Dictionary Learning
- Xiao Li*, Shixiang Chen*, Zengde Deng, Qing Qu, Zhihui Zhu, Anthony Man Cho So (2021). Weakly Convex Optimization over Stiefel Manifold Using Riemannian Subgradient-Type Methods. SIAM Journal on Optimization, 31(3): 1605-1634, 2021.
Preprint – PDF – Code – BibTex
- Qing Qu, Yuexiang Zhai, Xiao Li, Yuqian Zhang, and Zhihui Zhu (2020). Geometric Analysis of Nonconvex Optimization Landscapes for Overcomplete Learning. International Conference on Learning Representations (ICLR’20), 2020. (oral, top 1.9%)
Preprint – PDF – Slides – BibTex
- Ju Sun, Qing Qu, John Wright (2017). Complete Dictionary Recovery over the Sphere I: Overview and the Geometric Picture. IEEE Trans. on Information Theory, 63(2): 853 – 884, Feb. 2017. (ICML’15, best student paper award for SPARS’15).
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- Ju Sun, Qing Qu, John Wright (2017). Complete Dictionary Recovery over the Sphere II: Recovery by Riemannian Trust-region Method. IEEE Trans. on Information Theory, 63(2): 853 – 884, Feb. 2017.
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- Qing Qu, Ju Sun, John Wright (2016). Finding a Sparse Vector in a Subspace: Linear Sparsity Using Alternating Directions. IEEE Trans. on Information Theory, 62(10): 5855 – 5880, Oct. 2016 (NeurIPS’14).
Preprint – PDF – Code – Poster – Slides – BibTex