National & Local Joint Engineering Laboratory of Intelligent Transmission and Control Technology (Chongqing), College of Electronic and Information Engineering, Southwest University, Chongqing, 400715, China; Key laboratory of Machine Perception and Children's Intelligence Development, Chongqing University of Education, Chongqing, 400067, China.
Texas A & M University at Qatar, Doha 5825, Qatar.
Neural Netw. 2018 Mar;99:31-41. doi: 10.1016/j.neunet.2017.12.008. Epub 2017 Dec 20.
In this paper, we investigate a more general sparse signal recovery minimization model and a smoothing neural network optimal method for compress sensing problem, where the objective function is a L minimization model which includes nonsmooth, nonconvex, and non-Lipschitz quasi-norm L norms 1≥p>0 and nonsmooth L norms 2≥p>1, and its feasible set is a closed convex subset of R. Firstly, under the restricted isometry property (RIP) condition, the uniqueness of solution for the minimization model with a given sparsity s is obtained through the theoretical analysis. With a mild condition, we get that the larger of the q, the more effective of the sparse recovery model under sensing matrix satisfies RIP conditions at fixed p. Secondly, using a smoothing approximate method, we propose the smoothing inertial projection neural network (SIPNN) algorithm for solving the proposed general model. Under certain conditions, the proposed algorithm can converge to a stationary point. Finally, convergence behavior and successful recover performance experiments and a comparison experiment confirm the effectiveness of the proposed SIPNN algorithm.
在本文中,我们研究了压缩感测问题的更一般的稀疏信号恢复最小化模型和平滑神经网络最优方法,其中目标函数是包含非光滑、非凸和非 Lipschitz 拟范数 L 范数 1≥p>0 和非光滑 L 范数 2≥p>1 的 L 最小化模型,其可行集是 R 的闭凸子集。首先,在受限等距性质(RIP)条件下,通过理论分析,获得了给定稀疏度 s 的最小化模型的解的唯一性。在一个温和的条件下,我们得到了在固定 p 下,稀疏恢复模型在满足 RIP 条件下,q 值越大,稀疏性恢复效果越好。其次,利用平滑近似方法,我们提出了用于求解所提出的一般模型的平滑惯性投影神经网络(SIPNN)算法。在某些条件下,所提出的算法可以收敛到一个稳定点。最后,收敛行为和成功的恢复性能实验以及比较实验验证了所提出的 SIPNN 算法的有效性。