PPT-CMPT 409/815 Advanced Algorithms

September 21 2020 Plan for today 78 approximation for Max3SAT a deterministic algorithm Discrepancy using Chernoff bound Approximate DNF counting 78 Approximation for MAX3CNF 78 approximation for Max3CNF. 1. Graph Algorithms. Many problems are naturally represented as graphs. Networks, Maps, Possible paths, Resource Flow, etc.. Ch. 3 focuses on algorithms to find connectivity in graphs. Ch. 4 focuses on algorithms to find paths within graphs. 1 Advanced Topics in Graph Algorithms Perfect GraphsChromatic number Clique number Advanced Topics in Graph Algorithms Chordal Graphs Chordal graphs are perfect trivial.Suppose that chordal graphs wi Introduction to Operating Systems. . Introduction to Deadlocks. Acknowledgement: some slides are taken from Anthony D. Joseph’s course material at UC Berkeley . and Dr. Janice Reagan’s course material at SFU. Data Communications and Networking. Network Layer. ICMP . and fragmentation. © Janice Regan, 2007-2012. 1. IPv4 Protocol Header. Protocol. transport layer. Header. checksum. TTL. Source IP address. Destination IP address. Phase: Design. Janice Regan, 2008. 2. Map of design phase. DESIGN. HIGH LEVEL. DESIGN. Modularization. User Interface. Module Interfaces. Data. . Persistance. Subsystem. User Manual. architecture. jeff@cs.yorku.ca. Many Topics in Theory & Mathematics. Scheduling Algorithms. scheduling some shared resource . to a steady stream of incoming jobs. Examples. scheduling jobs on multi-processor machine. . Operating Systems. Processes. Multiprogramming. When multiple programs share the same processor . An example of . pseudoparallelism. Processes share processor (each get a short turn) so that in a perceptible length of time it appears processes run in parallel . Instructor: Arun Sen. Office: BYENG . 530. Tel: 480-965-6153. E-mail: asen@asu.edu. Office Hours: . MW 3:30-4:30 or by appointment. TA: . TBA. Office. : TBA. Tel: . TBA. E-mail: . TBA. Office Hours. : . . Mutual Exclusion. © Janice Regan, CMPT 300, 2007-2016 . 1. Implementation. Now we have the basic ideas we need. How do we actually implement mutual exclusion?. There are several approaches. Interrupt disabling. Problem - a well defined task.. Sort a list of numbers.. Find a particular item in a list.. Find a winning chess move.. Algorithms. A series of precise steps, known to stop eventually, that solve a problem.. DAC, CNS, . . .. Frederick Wieland, Ph.D. . ACES Architecture. Communications, Navigation, and Surveillance. Dynamic Airspace Design Service (DADS). Time-based Merging and Spacing. Separation Assurance Framework (SAF). Summer 2012. Instructor: Hassan . Khosravi. Defining Functions. We have already seen how several functions work in Python. raw_input. ,. range, . int. , and . str. A function must be given arguments. . 10 Bat Algorithms Xin-She Yang, Nature-Inspired Optimization Algorithms, Elsevier, 2014 The bat algorithm (BA) is a bio-inspired algorithm developed by Xin-She Yang in 2010. 10.1 Echolocation of Bats The Desired Brand Effect Stand Out in a Saturated Market with a Timeless Brand