Robust signal recovery for l_{1-2} minimization via prior support information

2021 ◽  
Author(s):  
Jing Zhang ◽  
Shuguang Zhang ◽  
Wendong Wang
2020 ◽  
Vol 18 (06) ◽  
pp. 1025-1055
Author(s):  
Wendong Wang ◽  
Jianjun Wang

In this paper, some theoretical results are established for the weighted Basis Pursuit De-Noising (BPDN) to guarantee the robust signal recovery when partial support information of the signals is known in advance. To be specific, equipped with two popular and powerful restricted isometry property and coherence tools, we obtain two kinds of deterministic performance guarantees of this weighted BPDN, including some recovery conditions and their resultant error estimates. These results demonstrate that if half of the support information at least is assumed to be accurate, then the weighted BPDN will perform robust under much weaker conditions than the analogous ones for the BPDN. This theoretical finding not only coincides with the ones established previously for the constrained weighted [Formula: see text]-minimization model, but also well complements the previous investigation of the weighted BPDN that is based on the asymptotic analysis. Moreover, the extensive numerical experiments are also conducted to support the assessed performance of the weighted BPDN. Finally, we also discuss the potential to apply the obtained results to deal with the robust signal recovery when the multiple support information of signals becomes available.


CCIT Journal ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 149-157
Author(s):  
Dewi Immaniar Desrianti ◽  
Giandari Maulani ◽  
Dana Krisdiana

The tight competition between schools in the era of globalization today, requires that the school Ivory Serpong Sower SDK to do the marketing strategy as attractive as possible, in order to enhance the new prospective learner interests as well as improve the quality of and professionalism in the management of the school. It is a promotional effort is used to market products or services to the public, so that they are more familiar with or know the product or service being marketed. Current media information and promotions that use the SDK Sower Ivory Serpong still be printed in the form of banners, brochures and more, so there are still many who have not yet learned about SDK Sower Gading Serpong. The purpose of this research is to inform and promote school SDK Sower Ivory Serpong. Based on a needs analysis is required of media promotion in the form of a video profile, to support information and promotion more attractive and effective by using the software Adobe Premier and Adobe Photoshop. Research methods used namely collecting data through observation, interviews and literature studies, Media Production and concept i.e. preproduction, production and postproduction. Through the design of Video media Profile of this SDK Sower Ivory Serpong can better known to many people and attracting parents to enroll his son in schools � SDK Sower Ivory Serpong


2009 ◽  
Author(s):  
Alwyn J. Seeds ◽  
Martyn Fice

Measurement ◽  
2021 ◽  
Vol 178 ◽  
pp. 109380
Author(s):  
Yunsheng Jiang ◽  
Cui Meng ◽  
Zhiqian Xu ◽  
Ping Wu ◽  
Maoxing Zhang ◽  
...  

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