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Theory and Practicecomputer science, programming, concrete mathematics, puzzles, program verification
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Theory and Practice | rgrig.blogspot.com Reviews
https://rgrig.blogspot.com
computer science, programming, concrete mathematics, puzzles, program verification
rgrig.blogspot.com
Theory and Practice: Why I use MOOCs
http://rgrig.blogspot.com/2014/12/why-i-use-moocs.html
Why I use MOOCs. I saw a Google Plus post saying ‘I hope to hear less about MOOCs in 2015’. Well, I hope to hear more. Here's why. The author of the Google Plus post is a popular blogger, Daniel Lemire. The Google Plus post links to a blog post, in which Lemire explains why MOOC advocates don't understand what they do. And concludes that MOOCs are probably doomed. The two main arguments are:. MOOCs are supposed to be open, but they are in fact closed, and. Content itself is of little value. I'm talking a...
Theory and Practice: Why Do We Fail?
http://rgrig.blogspot.com/2014/10/why-do-we-fail.html
Why Do We Fail? What is there to do if a problem refuses to be knocked down? There's a generic problem solving strategy for that. Suppose you work on a problem and fail to solve it. You could take a break, step back, and try a different technique. If after repeated attempts the problem fails to fall, then it is time for a change in strategy. Instead of seeing patterns in the problem itself, try to see a pattern in your failed attempts. Ask yourself: Why. Did all these attempts fail? So some bugs must.
Theory and Practice: Coverability for Vector Addition Systems
http://rgrig.blogspot.com/2015/07/coverability-for-vector-addition-systems.html
Coverability for Vector Addition Systems. Vector addition systems are a model of computation. For this model, coverability is one of the easiest decision problems. This post presents an old (1978) upper bound, with accompanying code. The reachability problem asks whether there is some run going from $u$ to $w$. The coverability problem asks whether there is some run going from $u$ to $ ge w$. Here's how coverability looks in Python:. For example, the code. Print(vas cover(2, [ 1,0] , [0,0], [0,1]). Bound...
Theory and Practice: Tree Buffers
http://rgrig.blogspot.com/2015/04/tree-buffers.html
Circular buffers are one of the most fundamental and pervasive data structures. They are an efficient implementation for buffering linear sequences. Tree buffers are a more general data structure. You heard of circular buffers: Alice reads out a sequence $x 0$, $x 1$, $x 2$, … of facts. Bob's memory has size $h$, and he stores $x k$ at address $k bmod h$. So, Bob always remembers the last. H$ facts that Alice read. However we define the equivalent, the following properties are desirable:. For example, if...
Theory and Practice: RIP Herman Conjecture (2005-2015)
http://rgrig.blogspot.com/2015/04/rip-herman-conjecture-2005-2015.html
RIP Herman Conjecture (2005-2015). In 1990, Herman proposed a sweet self-stabilizing protocol. In 2005, McIver and Morgan conjectured that its running time is $ frac{4}{27} N 2$. Well … they were right. Do you remember playing tag as a kid? Anyway, since coins only get eaten in pairs, at some point only one coin will be left if you started with an odd number of coins. The kid that holds this last coin is chosen as the seeker (or the tagger). Here's how the proof goes. V=mBFfFPGedLs ). By these two po...
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Playful paper titles » Ross Shannon
http://rossshannon.com/2009/05/28/playful-paper-titles
Researchin’ the day away…. Thursday 28 May 2009. At 3:56 PM under Blog. Travis Writing to Reach You. Academic paper titles have a tendency to be a bit staid, cautious and flat. Admittedly, this is a pattern I haven’t yet broken out of myself. Perhaps it’s because many non-English speakers are forced to publish in English (as English is the lingua franca. 8220;Gorillas in our midst: sustained inattentional blindness for dynamic events”. By Daniel J. Simons and Christopher Chabris. 9) pages 1059–1074.
Web Log di Adrian Florea
http://blogs.ugidotnet.org/adrian
Web Log di Adrian Florea. You know you've achieved perfection in design, not when you have nothing more to add, but when you have nothing more to take away." Antoine de Saint-Exupery. Posts - 440, comments - 2715, trackbacks - 3944. Un po' di storia. Un po' di numeri. Workshop UGIdotNET "Architecture and Management". Cena Workshop UGIdotNET "WinFX and Vista". G Ledgard and Z. Goldring. Maxim V. Karpov. Robert C. Martin. NET Language Devs Group. Amazon .NET Books. Douglas C. Schmidt patterns. Foo : IFoo {.
Dear Google, please fix plain text emails in Gmail · Mathias Bynens
https://mathiasbynens.be/notes/gmail-plain-text
PBKDF2 HMAC hash collisions explained. Unicode-aware regular expressions in ECMAScript 6. Dear Google, please fix plain text emails in Gmail. Published 4th July 2014. By default, composing a new email in Gmail results in an HTML email under the hood even if you don’t use any formatting. Luckily, it’s possible to opt-out of that and use plain text email instead. In the ‘new email’ window, click the downwards arrow and check ‘Plain text mode’. What would actually get sent is the following:. Instead of fill...
The mismeasurement of science | Michael Nielsen
http://michaelnielsen.org/blog/the-mismeasurement-of-science
Michael’s main blog. The mismeasurement of science. By Michael Nielsen on November 29, 2010. Which, roughly speaking, is a type of pressure which keeps a static Universe from collapsing. Twelve years later, in 1929, Edwin Hubble discovered that the Universe isn’t static and unchanging, but is actually expanding. Upon hearing the news, Einstein quickly realized that if he’d taken his original 1915 theory seriously, he could have used it to. The problem of measuring science. To judge the quality of scienti...
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Rgriffiths-Designs
Hello, my name is Richard and I'm a. Web Developer and Designer. Using this approach to web design enables me to create an optimal viewing experience for customers, making the site easily accessible from all devices. I aim to create bespoke websites that enhance your customers experience when browsing your site. As its important for websites to stand out form the crowd. Creating WordPress themes can also offer a unique experience for your customers, which can easily be updated. This project I was approac...
rgriffiths (rhys) - DeviantArt
Window.devicePixelRatio*screen.width 'x' window.devicePixelRatio*screen.height) :(screen.width 'x' screen.height) ; this.removeAttribute('onclick')" class="mi". Window.devicePixelRatio*screen.width 'x' window.devicePixelRatio*screen.height) :(screen.width 'x' screen.height) ; this.removeAttribute('onclick')". Join DeviantArt for FREE. Forgot Password or Username? Deviant for 11 Years. This deviant's full pageview. Last Visit: 5 weeks ago. This is the place where you can personalize your profile! Beyond r...
R Griffiths Carpentry | Carpentry Services in South Wales
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Theory and Practice
Coverability for Vector Addition Systems. Vector addition systems are a model of computation. For this model, coverability is one of the easiest decision problems. This post presents an old (1978) upper bound, with accompanying code. Circular buffers are one of the most fundamental and pervasive data structures. They are an efficient implementation for buffering linear sequences. Tree buffers are a more general data structure. RIP Herman Conjecture (2005-2015). Why I use MOOCs. Why Do We Fail?
RGrig
Puterea exponențială a lui 10%. Am citit de curând un articol intitulat Puterea lui 10%. Despre optimiști și pesimiști. Conform articolului, optimistul crede că o rată de succes de 10% este bună, iar pesimistul, că e rea. Ca urmare, optimistul muncește cu zel, iar pesimistul renunță repede. Pe scurt, e bine să fii optimist. Distincte. Voi lămuri aici o legătură dintre ele. Ca exemplu, voi folosi o poveste a abandonului școlar. Povestea a fost spusă în. Sub titlul Generația Abandonată. Ținta este atinsă c...
development journey, step 1 | my wordpress sandbox
Development journey, step 1. Small Business and the best pizza in the world. The best pizza on this planet comes from Coccia House Pizza. In my hometown, Wooster, Ohio, USA. Those who have had it know what I’m talking about. I moved to Columbus in 1994 I have, on several occasions, made the 2 hour (each way) drive. To satisfy the need for great pizza. For over 55 years. Coccia House, Est 1958. I envision, one by one, Rotolo’s clientele dwindling over the years as customers chose price over quality. The r...
RGriggsphoto
Photography by Richard Griggs. After learning photography with film and making prints in a chemical darkroom, I have now moved into the digirtal realm, using memory cards as film and a computer and specialty printer as my darkroom. RG. Last update: 2/11/09 10:14 PM. Click to Email Richard for purchase or other inquiries.
That Rationalist Griggsy!
Saturday, July 28, 2012. Papers by Peter van Inwagen. Papers by Peter van Inwagen. Monday, July 23, 2012. Rosa Rubicondior: C.S.Lewis, You Cannot Be Serious! Rosa Rubicondior: C.S.Lewis, You Cannot Be Serious! Saturday, July 21, 2012. Ex-apologist: Symposium on the Schellenberg Trilogy in the New Issue of Philo. Ex-apologist: Symposium on the Schellenberg Trilogy in the New Issue of Philo. Friday, July 20, 2012. Rationalism for that more abundant life! Faith reifies the argument from ignorance for Him!
