P. Rizun

Publications16
h-index8
Citations308
Highly Influential Citations15
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  • Influence
A Transaction Fee Market Exists Without a Block Size Limit
This paper shows how a rational Bitcoin miner should select transactions from his node’s mempool, when creating a new block, in order to maximize his profit in the absence of a block size limit. To… Expand
  • 41
  • 7
  • PDF
Robotics in neurosurgery.
Technological developments in imaging guidance, intraoperative imaging, and microscopy have pushed neurosurgeons to the limits of their dexterity and stamina. The introduction of robotically assisted… Expand
  • 69
  • 4
Subchains: A Technique to Scale Bitcoin and Improve the User Experience
  • P. Rizun
  • Computer Science, Engineering
  • Ledger
  • 21 December 2016
TLDR
This paper considers a technique for using fractional-difficulty blocks (weak blocks) to build subchains bridging adjacent pairs of real blocks. Expand
  • 25
  • 3
  • PDF
Tactile feedback laser system with applications to robotic surgery
  • P. Rizun, G. Sutherland
  • Engineering, Computer Science
  • First Joint Eurohaptics Conference and Symposium…
  • 18 March 2005
TLDR
A tactile feedback surgical laser system synthesizes haptic feedback through a robotic arm held by the operator when the focal point of the laser is coincident with a real surface, giving the operator the impression of touching something solid. Expand
  • 10
  • 1
A novel method for assessing the 3-D orientation accuracy of inertial/magnetic sensors.
A novel method for assessing the accuracy of inertial/magnetic sensors is presented. The method, referred to as the "residual matrix" method, is advantageous because it decouples the sensor's error… Expand
  • 42
  • PDF
Robot-Assisted Neurosurgery
Technological advances in the modern operating room have pushed neurosurgeons to the limits of their dexterity and stamina. Motion scalers and tremor filters on robots permit unprecedented precision… Expand
  • 42
Robotics in neurosurgery.
Technological developments in imaging guidance, intraoperative imaging, and microscopy have pushed neurosurgeons to the limits of their dexterity and stamina. The introduction of robotically assisted… Expand
  • 35
  • PDF
Mechatronic design of haptic forceps for robotic surgery
TLDR
Haptic feedback increases operator performance and comfort during telerobotic manipulation. Expand
  • 19
Optimal Wiener Filter for a Body Mounted Inertial Attitude Sensor
An optimal attitude estimator is presented for a human body-mounted inertial measurement unit employing orthogonal triads of gyroscopes, accelerometers and magnetometers. The estimator continuously… Expand
  • 6
Selfish Mining Re-Examined
TLDR
We present a novel, modified selfish mining strategy, called intermittent selfish mining, that, perplexingly, is more profitable than honest mining even when the attacker performs no selfish mining after a difficulty adjustment. Expand
  • 7
  • PDF