PPT-Impossibility of Consensus

Author : natalia-silvester | Published Date : 2016-05-16

Ken Birman Fall 2012 Consensus a classic problem Consensus abstraction underlies many distributed systems and protocols N processes They start execution with inputs

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Impossibility of Consensus: Transcript

Ken Birman Fall 2012 Consensus a classic problem Consensus abstraction underlies many distributed systems and protocols N processes They start execution with inputs 01 Asynchronous reliable network. Hao. Li. In English. People have different ideas. They reach agreement after discussion: consensus. Given consensus, one idea is chosen. In computer science. Distributed system – processes propose different values. Jacob Beal. 2013 Spatial Computing Workshop @ AAMAS. May, 2013. PLD-Consensus:. With asymmetry from a self-organizing overlay…. … we can cheaply trade precision for speed.. Motivation: approximate consensus. to increasing support for climate action. John Cook. Global Change Institute, University of Queensland. 19 Sep 2013. “Science . is not a democracy. . It . is a dictatorship. . It . is evidence that does the dictating. Dennis Shasha (following Lynch, Fischer, Patterson). Failure Model. Processes can fail-stop (but that is all; no fail traitorous).. Communication is two-way.. Messages can be dropped or take an arbitrarily long time.. Jacob Beal. Social Concepts in Self-Adaptive and Self-Organising Systems. IEEE SASO. September, 2013. Asymmetry trades robustness for speed. Spanning Tree. Consensus. Laplacian. Consensus. O(diameter). Nir. . Bitansky. and Omer . Paneth. Program Obfuscation. Compute . . . . Program Obfuscation. . . Program Obfuscation. Sign email . with . If . starts with “omer@bu.edu”. . . . - . What . Are The Appropriate National Clinical Pharmacy Key Performance Indicators (cpKPI) . For Canadian . Hospital Pharmacists?. . . Olavo . Fernandes BScPhm, ACPR, . PharmD. , FCSHP. Director of Pharmacy- Clinical, University Health Network, Toronto ON. - . What . Are The Appropriate National Clinical Pharmacy Key Performance Indicators (cpKPI) . For Canadian . Hospital Pharmacists?. . . Olavo . Fernandes BScPhm, ACPR, . PharmD. , FCSHP. Director of Pharmacy- Clinical, University Health Network, Toronto ON. Terri Giordano MSN, CRNP, CORLN. Division of Otolaryngology. The Children’s Hospital of Philadelphia. Tracheosto. my Care. Systematically developed statements to assist practitioner and patient decisions about appropriate health care for specific clinical circumstances. Conflict, governance, and poverty. I. The . l. iberal consensus . II. Trends in conflict . and . governance. III. The consensus in crisis?. IV. Beyond the consensus. 1990 – 2010 post-Cold War liberal consensus. WSLD 2012. What is CBDM?. CBDM stands for Consensus-Based-Decision-Making. Consensus . may be defined . as . an acceptable resolution, one that can be supported, even if not the "favorite" of each individual. . Paxos Made Simple One-shot Paxos: solving consensus Multipaxos: Efficient state machine replication One-shot Paxos: solving consensus Multipaxos: Efficient state machine replication Consensus Get N nodes to agree on a value Version 101Updated 2/3/2016Chronic Cardiovascular Condition MeasuresNQF MeasureMeasure StewardLevel of AnalysisConsensus Agreement / NotesCongestive Heart Failure0330Hospital 30-day all-cause risk-sta Core Set Orthopedic MeasuresVersion 101Updated 11/23/2015Orthopedic Measures NQFMeasure TitleMeasure StewardConsensus Agreement / Notes1550Hospital-level risk-standardized complication rate RSCR follo

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