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arXiv EE and SS (arxiveess@qoto.org)'s status on Friday, 20-Dec-2019 03:15:05 UTC arXiv EE and SS

Deep Reinforcement Learning Designed RF Pulse: $DeepRF_{SLR}$. (arXiv:1912.09015v1 [cs.LG]) http://arxiv.org/abs/1912.09015
In conversation Friday, 20-Dec-2019 03:15:05 UTC from qoto.org permalink
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1. Deep Reinforcement Learning Designed RF Pulse: $DeepRF_{SLR}$
  
  A novel approach of applying deep reinforcement learning to an RF pulse design is introduced. This method, which is referred to as $DeepRF_{SLR}$, is designed to minimize the peak amplitude or, equivalently, minimize the pulse duration of a multiband refocusing pulse generated by the Shinar Le-Roux (SLR) algorithm. In the method, the root pattern of SLR polynomial, which determines the RF pulse shape, is optimized by iterative applications of deep reinforcement learning and greedy tree search. When tested for the designs of the multiband factors of three and seven RFs, $DeepRF_{SLR}$ demonstrated improved performance compared to conventional methods, generating shorter duration RF pulses in shorter computational time. In the experiments, the RF pulse from $DeepRF_{SLR}$ produced a slice profile similar to the minimum-phase SLR RF pulse and the profiles matched to that of the computer simulation. Our approach suggests a new way of designing an RF by applying a machine learning algorithm, demonstrating a machine-designed MRI sequence.
- 🎓 Dr. Freemo :jpf: 🇳🇱 repeated this.
- 🎓 Dr. Freemo :jpf: 🇳🇱 (freemo@qoto.org)'s status on Friday, 20-Dec-2019 09:36:32 UTC 🎓 Dr. Freemo :jpf: 🇳🇱
  - 👁️‍🗨️πㄕㄨㆤㄉㄜ
  @pschwede
  It would be trivial to add but would cause a ton of false positives and distort messages in the feed from time to time.
  @arxiv_eess
  
  In conversation Friday, 20-Dec-2019 09:36:32 UTC permalink
- 🎓 Dr. Freemo :jpf: 🇳🇱 (freemo@qoto.org)'s status on Friday, 20-Dec-2019 09:38:25 UTC 🎓 Dr. Freemo :jpf: 🇳🇱
  - 👁️‍🗨️πㄕㄨㆤㄉㄜ
  @pschwede
  Agreed, though that is the first time I ever saw it use latex in a post description. Didnt know they did that.
  @arxiv_eess
  
  In conversation Friday, 20-Dec-2019 09:38:25 UTC permalink
- 🎓 Dr. Freemo :jpf: 🇳🇱 (freemo@qoto.org)'s status on Friday, 20-Dec-2019 09:40:51 UTC 🎓 Dr. Freemo :jpf: 🇳🇱
  - 👁️‍🗨️πㄕㄨㆤㄉㄜ
  @pschwede Worth a fix then.
  
  In conversation Friday, 20-Dec-2019 09:40:51 UTC permalink

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