Model checking | Automata (computation)

Clock (model checking)

In model checking, a subfield of computer science, a clock is a mathematical object used to model time. More precisely, a clock measures how much time passed since a particular event occurs, in this sense, a clock is more precisely an abstraction of a stopwatch. In a model of some particular program, the value of the clock may either be the time since the program was started, or the time since a particular event occurred in the program. Those clocks are used in the definition of timed automaton, signal automaton, timed propositional temporal logic and . They are also used in programs such as UPPAAL which implement timed automata. Generally, the model of a system uses many clocks. Those multiple clocks are required in order to track a bounded number of events. All of those clocks are synchronized. That means that the difference in value between two fixed clocks is constant until one of them is restarted. In the language of electronics, it means that clock's jitter is null. (Wikipedia).

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Time by clocks

The way how to show time using clocks. It is 12 hours video you can use as a screensaver on clock, every number changing is completely random. Please enjoy.

From playlist Timers

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Clock Mind Reader

You will move around the clock face at random, and I will still be able to read your mind to tell you the number on which you have landed. It's simple to work out.

From playlist My Maths Videos

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Evaluating Time Series Models : Time Series Talk

How do we evaluate our time series models? How can we tell if one model is better than another?

From playlist Time Series Analysis

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Time Interval Counter

This is yet another useful tool for engineers, described by J. Lowe from NIST. Engineers can compare the accuracy of clocks and troubleshoot instruments using the time frequency counter. This video is appendix II.B.v3 and is part of the Universe of Instrumentation Program.

From playlist Universe of Instrumentation Series

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Solar Powered Alarm Clock - Part 2

This is the wrap up of the Solar Powered Alarm Clock. I also introduce some new projects I will be working on.

From playlist Solar Powered Projects

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What's a Binary Clock?

Hi! In this video, I’ll teach you how to read a binary clock and talk about how technology uses binary. I learned a lot while researching for this video and had a ton of fun putting it together, so I hope you enjoy it! Thanks so much to Anelace for giving me permission to use the design o

From playlist Summer of Math Exposition Youtube Videos

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How to show multiple clocks on multiple desktops in Windows 10

Using the free desktop customization tool Rainmeter, you can show as many clocks as you want as desktop widdgets and drag them to different desktops (monitors). Cool!

From playlist Windows 10

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What Makes a Wristwatch Tick?

Over 100 precision components help this wristwatch keep time. MACHINES: HOW THEY WORK Thursdays 10/9c on Science http://www.sciencechannel.com/tv-shows/machines-how-they-work/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Check out SCI2 for infinitely awesome science vide

From playlist Machines: How They Work

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Special Topics - GPS (57 of 100) Why Do We Need SV Clock Corrections? Part 1

Visit http://ilectureonline.com for more math and science lectures! http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the atomic clock on the space vehicle (satellite) tends to drift over time unlike the Earth-bound atomic clocks. So, in order to k

From playlist SPECIAL TOPICS 2 - GPS

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DeepSec 2010: Detection of Hardware Keyloggers

Thanks to the DeepSec organisation for making these videos available and let me share the videos on YouTube. Speaker: Fabian Mihailowitsch, Independent Researcher Hardware keyloggers are tiny devices that are plugged between a computer keyboard and a computer. They are available for PS/2

From playlist DeepSec 2010

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Interacting particle systems with kinetic (Lecture 1) by Fabio Martinelli

PROGRAM : ADVANCES IN APPLIED PROBABILITY ORGANIZERS : Vivek Borkar, Sandeep Juneja, Kavita Ramanan, Devavrat Shah and Piyush Srivastava DATE & TIME : 05 August 2019 to 17 August 2019 VENUE : Ramanujan Lecture Hall, ICTS Bangalore Applied probability has seen a revolutionary growth in r

From playlist Advances in Applied Probability 2019

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A Playful Introduction to Rx by Erik Meijer

Learning Rx does not have to be boring like working your way through theoretical sermons about esoteric concepts like category theory and duality. Life is too short for that kind of abstract nonsense. So what is a better way to spend a hot summer day with an ice-cold drink, or a cold win

From playlist Software Development Lectures

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Stanford Seminar - Runway: A New Tool for Distributed Systems Design

EE380: Colloquium on Computer Systems Runway: A New Tool for Distributed Systems Design Speaker: Diego Ongaro, Salesforce Distributed systems are notoriously difficult to get right. We're constantly improving the frameworks we use and the way we test production code, yet we rarely inves

From playlist Stanford EE380-Colloquium on Computer Systems - Seminar Series

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Winter Theory School 2022: Steve Hill

Directly observing quantum spin dynamics and relaxation via electron magnetic resonance

From playlist Winter Theory 2022

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Virtual EmberConf 2020: Autotracking: Reactivity and State in Modern Ember by Chris Garrett

Autotracking: Reactivity and State in Modern Ember by Chris Garrett Tracked properties are one of the most exciting features introduced in Ember Octane, and they represent a shift in the model for state management in modern Ember apps. But what makes a property "tracked"? Why do we have t

From playlist EmberConf 2020

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NASA Jet Propulsion Laboratory Live Stream

NASA's Jet Propulsion Laboratory invites you to watch live about everything from Mars rovers to monitoring asteroids to cool cosmic discoveries. From the lab to the lecture hall, get information directly from scientists and engineers working on NASA's latest missions. http://www.jpl.nasa.g

From playlist Von Karman Public Talks

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Nexus Trimester - Yoram Moses (Technion) 2/2

Yoram Moses (Technion) Knowledge and Coordinated Action February 02, 2016 Abstract: Decisions taken by an agent in a multi-agent system depend on the agent's local information. A new formulation of the connection between knowledge and action in multi-agent systems allows new insights into

From playlist Nexus Trimester - 2016 - Distributed Computation and Communication Theme

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4. The Kinematics of the Homogeneous Expanding Universe

MIT 8.286 The Early Universe, Fall 2013 View the complete course: http://ocw.mit.edu/8-286F13 Instructor: Alan Guth In this lecture, the professor first talked about the properties of the universe, then discussed Hubble's Law, gave an example of isotropy without homogeneity, etc. License

From playlist The Early Universe by Prof. Alan Guth

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Analog Clock Animation

A small digression from usual animations. This time, I have done one for my 3rd grader son. In their math class, they were learning how to read and find differences from the analog clocks. Since we didn't have any analog clock left at home, I wanted to generate one for him using Matlab. Th

From playlist Electromagnetic Animations

Related pages

Signal automaton | Difference bound matrix | Logical conjunction | Region (model checking) | First-order logic | Timed propositional temporal logic | Model checking | Timed automaton