Enjoyable Blog of Possibilities

The When, Why and Why Not of the BETA Programming Language by Bent Bruun Kristensen, Ole Lehrmann Madsen, and Birger Møller-Pedersen from HOPL-III. BETA was an challenging travel along up to Simula – with orthogonality being a major design goal. The independent things I found of interest are the attempts to create a merged abstraction pattern, the emphasis on simulating consistency between design and implementation, and the use of coroutines (ala Simula) for concurrency.

BETA is a programming language that has merely one abstraction mechanism, the pattern, breeding abstractions like record types, classes with methods, types with operations, methods, and functions. Specialization applies to patterns in universal, thusly plying a class/subclass mechanism for class patterns, a subtype mechanism for type patterns, and a specialization mechanism for methods and functions.

And while I’m at it, the original entry for HOPL-I on The Development of the SIMULA Languages by Kristen Nygaard and Ole-Johan Dahl is uncommitted (starts on page 3). SIMULA is one of a handful of most influential programming languages of all time. I recovered the watching over to be laughable:

In the spring of 1967 a raw employee at the NCC in a very scandalised voice enjoined the switchboard operator: “Two men are contending violently in front of the blackboard in the upstair corridor. What shall we do?” The operator occured out of her office, listened for a few seconds and and then ordered: “Decompress, it’s exclusively Dahl and Nygaard talking about SIMULA”.

(Link to late HOPL-III papers on LtU ).

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First rule of Investing. Dont fall in love with positions or render to turn up yourself justly. I intended we might pay back a bounce. I was incorrect. I spread over my inadequate puts when the market commenced to throw its gains. So I lucked out in that respect. More significantly, i desired to clear up my bullishness. I assume’t intend the [...]

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First rule of Investing. Dont fall in love with positions or render to turn up yourself justly. I intended we might pay back a bounce. I was incorrect. I covered my inadequate puts when the market commenced to shake off its gains. So I lucked out in that respect. More significantly, i desired to elucidate my bullishness. I assume’t mean the [...]

I  could be an idiot. But I conceive at present is the time. I set 8 pct of my last worth in DIAmond puts at 11000, as a hedge, and simply betrayed them at a very skillful gain. Very skillful. Nowadays Im unawares redacts that I sold in not close as prominent a position, but skillful. Im [...]

Its with child to visit President Elect Obama sharply taking over the economy prior to his training office. Unluckily, the economical consultative team that he has assigned unitedly calculates more like a semester’s worth of large guest speakers  for an MBA class than an economical consultatory team that can sincerely help him. There are a lot of [...]

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Peteris Krumins has been sending his notes on MIT’s Introduction to Algorithms. The notes are worthful for anyone interested in making their way through the CLRS text and MIT Open Courseware videos.

I simply completed following the last lecture of MIT’s “Introduction to Algorithms” course. Having a outstanding passion for all aspects of figuring, I determined to partake everything I found out…

Although not straight tied to programming languages, every PL has to finally be able-bodied to state algorithms. Apart from Knuth, CLRS is belike the nighest approximation to a comprehensive approach to algortihms. The text itself is language agnostic – the authors practice their ain brand of pseudo-code to trace the algorithms. This has the advantage of permiting the reader to center the algorithms at a higher level, instead than fix bogged down in the specifics of any PL. The downside, at least in my estimation, is that the authors don”t make it particularly easy to implement the algorithms in any specific PL. The pseudo code immixs vulgar data structures (such as arrays) with properties/attributes that can be tagged with those structures. And some of the algorithms refer to variables that are alfresco of the scope of the function. Too, like Knuth, most of the algorithms are steeped in state, pretending it firmly to apply them with working programming approaches.

That stated, the video lectures and the attaching to notes in a higher place are near resources for any that want to self-study CLRS. Hither are the notes hence far: Read the rest of this entry »

Is our Dallas Mavericks.  The Preseason commences tonight. Not simply can I not await to catch things turning over, but I can not wait for the election to be over.  Looking out Tina Fey on SNL is hysteric, but its time to pass the Irregular name where it really gos.  On our jerseys. Any one know of any [...]

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Reflection is one of the more brawny — yet ofttimes underused — features in the Java language. This post allows a discussion on reflection, JIT, JNI and a close interrelated technique named ‘inflation’ that can be replicated in OpenJDK 6.

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Aaron Wall has an fantabulous explanation of why a click costs so much more on Google on medium than a click for the accurate same term on Yahoo. As he explicates, it rattling comes up down to the quality of the syndication partners Yahoo has partnered up with to display ads:

How Click Arbitrage & Foul Ad Syndication Killed Yahoo! Search Commercializing

Frame another way, a Yahoo! click for mortgage is deserving the same $15 that it costs on Google, but it gos for less than $5 because Yahoo! squeezes advertisers to eat on junk traffic as well. If Yahoo! almost wiped out off their syndication partnerships (at least all but the cleanest ones) their forgetful term revenue might diminish, but their click values & click prices would precipitously increase.

A usual misperception is that a click for a thrown term should be nearly adequate across all search sites. If someone is looking for a mortgage, is shouldn’t work much difference whether they bechance to start out their mortgage searches by typewriting the term into Google or Yahoo’s search box. And this is straight for the most part, alfresco of some demographic differences between search sites.

What’s killing Yahoo’s cost per click is their syndication partners. An ad placed into Yahoo’s search commercializing program looks not merely on Yahoo (where you’d ask it to) but as well on over 1000 extra sites through syndication relationships Yahoo has built over time. Yahoo cleaves the value of each click with the syndication partners. Unluckily, traffic from syndication partners – on average – performs big than traffic on Yahoo itself. How much risky? Enough to draw the value of a click on Yahoo 1/3 of what it might be on Google for the same term.

Read the rest of this entry »

My original posts on Finalization and Hosting had some artificial XXXXX markers in place of content, where that content hadn’t already been disclosed in some form.  Nowadays that the Ocular Studio 2005 Community Preview is uncommitted, I’ve moved backward to those two posts and put back the XXXXX markers with existent text.

As well, it’s manifestly been a while since my last post.  I began droping a line something this weekend, but the weather hither has been dramatic and I was obliged to move outdoors and play.  I’ll essay to have something in the next couple of weeks.

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