Search Results

Search found 2242 results on 90 pages for 'fuzzy comparison'.

Page 42/90 | < Previous Page | 38 39 40 41 42 43 44 45 46 47 48 49  | Next Page >

• What's the real benefit of meta-modeling?

  - by Jakob

  After reading several texts about meta-modeling I still do not really get the practical benefit. Sometimes I think it is only an interesting mind game but no useful tool. Sure it is wise to clarify your modeling vocabulary: some may say class where others say entity or concept, but this is just simple documentation your modeling terminology. Meta-modeling, as I understand it, is more complex, as it tries to formalize and abstract modeling. Some good examples are Keet's formal comparison of conceptual data modeling languages (UML, ERM and ORM) from academia and the Meta Object Facility (MOF) from industry. To me MOF looks as impractical as CORBA, which was also created by OMG. In theory you could use meta-modeling to transform and integrate models in different modeling languages, but is anyone actually doing this?

  Read the article

• Pay Per Click Software

  - by Eddy Freeman

  What software do sites like www.shopzilla.com, www.become.com, www.kelkoo.com etc.. use for the Pay-Per-Click product listing campaigns they offer for their retailers. I am asking what kind of software do they use to know that a certain retailer's products has been clicked 50 times or 100 times(and then the cost of the click is deducted from his money-account) etc... Can someone point me to those kind of softwares? EDIT *Some Explanation :: * In a site like www.shopzilla.com, retailers will upload thier products(list their products on the site). Anytime a buyer clicks on a product to go the retailer's website, an amount of money(say $0.20) is deducted from his account(the money he has deposited in his account with shopzilla). A retailer can see how many times buyers have clicked on his products and how much money remains in his shopzilla accounts. Am looking for such softwares that comparison sites like shopzilla uses to run this type of campaigns. I hope it is clear now.

  Read the article

• In retrospect, has it been a good idea to use three-valued logic for SQL NULL comparisons?

  - by Heinzi

  In SQL, NULL means "unknown value". Thus, every comparison with NULL yields NULL (unknown) rather than TRUE or FALSE. From a conceptional point of view, this three-valued logic makes sense. From a practical point of view, every learner of SQL has, one time or another, made the classic WHERE myField = NULL mistake or learned the hard way that NOT IN does not do what one would expect when NULL values are present. It is my impression (please correct me if I am wrong) that the cases where this three-valued logic helps (e.g. WHERE myField IS NOT NULL AND myField <> 2 can be shortened to WHERE myField <> 2) are rare and, in those cases, people tend to use the longer version anyway for clarity, just like you would add a comment when using a clever, non-obvious hack. Is there some obvious advantage that I am missing? Or is there a general consensus among the development community that this has been a mistake?

  Read the article

• Q&amp;A: What is the UK pricing for the Windows Azure CDN?

  - by Eric Nelson

  The pricing for Windows Azure Content Delivery Network (CDN) was announced last week. The prices are: £0.091 per GB transferred from North America & Europe locations £0.1213 per GB transferred from other locations £0.0061 per 10,000 transactions CDN rates are effective for all billing periods that begin subsequent to June 30, 2010. All usage for billing periods beginning prior to July 1, 2010 will not be charged. To help you determine which pricing plan best suits your needs, please review the comparison table, which includes the CDN information. Steven Nagy has also done an interesting follow up post on CDN. Related Links: Q&A- How can I calculate the TCO and ROI when considering the Windows Azure Platform? Q&A- When do I get charged for compute hours on Windows Azure? Q&A- What are the UK prices for the Windows Azure Platform

  Read the article

• Ask the Readers: Favorite Web Clipping Tool?

  - by Jason Fitzpatrick

  Bookmarking is great if you want a link to visit later, but what if you want to save the page itself for later perusal? This week we want to hear all about your favorite web clipping tool and how you use it to read what you want, when you want it. Web clipping tools are simple tools (browser extensions, bookmarklets, etc.) that make it easy to clip text and multimedia elements from web pages in order to archive them and/or read them at a later date. Whether you clip to a bursting at the seams web-notebook or you clip to send to your Kindle, we want to hear about your favorite tools and how they fit into your reading workflow. Sound off in the comments and then make sure to check back on Friday for the What You Said roundup where we highlight popular picks and clever tips. HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS Use Your Android Phone to Comparison Shop: 4 Scanner Apps Reviewed How to Run Android Apps on Your Desktop the Easy Way

  Read the article

• A Quantity class with units

  - by Ryan Ohs

  Goals Create a class that associates a numeric quantity with a unit of measurement. Provide support for simple arithmetic and comparison operations. Implementation An immutable class (Could have been struct but I may try inheritance later) Unit is stored in an enumeration Supported operations: Addition w/ like units Subtraction w/ like units Multiplication by scalar Division by scalar Modulus by scalar Equals() >, >=, <, <=, == IComparable ToString() Implicit cast to Decimal The Source The souce can be downloaded from Github. Notes This class does not support any arithmetic that would modify the unit. This class is not suitable for manipulating currencies. Future Ideas Have a CompositeQuantity class that would allow quantities with unlike units to be combined. Similar currency class with support for allocations/distributions. Provide conversion between units. (Actually I think this would be best placed in an external service. Many situations I deal with require some sort of dynamic conversion ratio.)

  Read the article

• Why did Alan Kay say, "The Internet was so well done, but the web was by amateurs"?

  - by kalaracey

  OK, so I paraphrased. The full quote: The Internet was done so well that most people think of it as a natural resource like the Pacific Ocean, rather than something that was man-made. When was the last time a technology with a scale like that was so error-free? The Web, in comparison, is a joke. The Web was done by amateurs. -- Alan Kay. I am trying to understand the history of the Internet and the web, and this statement is hard to understand. I have read elsewhere that the Internet is now used for very different things than it was designed for, and so perhaps that factors in. What makes the Internet so well done, and what makes the web so amateurish? (Of course, Alan Kay is fallible, and no one here is Alan Kay, so we can't know precisely why he said that, but what are some possible explanations?) *See also the original interview*.

  Read the article

• Getting fingerprint from Apache certificate (combined with key)

  - by Alois Mahdal

  I have just created a certificate for my Apache SSL host using: make-ssl-cert /usr/share/ssl-cert/ssleay.cnf /etc/ssl/private/myhost.crt Now that is the correct way to get the fingerprint out of it? (So I can keep it in other place for visual comparison---in case I need to connect and really don't trust the network?) openssl sha1 /etc/ssl/private/myhost.crt returns different SHA1 than Opera tells me about the cert. Is this because it's combined with the key? (...or am I spoofed already? :-)).

  Read the article

• extrapolating object state based on updates

  - by user494461

  I have a networked multi-user collaborative application. To maintain a consistent virtual world, I send updates for objects from a master peer to a guest peer. The update state contains x,y,z coordinates of object center and his rotation matrix(CHAI3d api used a 3x3 matrix) with 30Hz frequency. I want to reduce this update rate and want to send with a reduced update rate. I want a predictor on both peers. When the predicted value is outside, say a error value of 10% in comparison to master peers objects original state the master peer triggers a state update. Now for position I used velocity,position updates so that the guest peer can extrapolate position. Like velocity for position what parameter should I use for rotation extrapolition?

  Read the article

• Root and Install ADB on Your Kindle Fire with SuperOneClick

  - by Jason Fitzpatrick

  The Kindle Fire, fresh into the hands of consumers across the country, has already been rooted and accessed with ADB. Right now the hack is awesome but of limited utility–it highlights how easily the Kindle Fire can be rooted and prepared for a custom ROM but for the moment you’ll find there aren’t many custom ROMs floating around. Still, we’re excited by the news and looking forward to where, beyond the stock configuration, people take the Kindle Fire. Hit up the link below for the discussion thread on AndroidForums outlining how to root your Kindle Fire. How-To Get ADB Running AND Root with SuperOneClick [AndroidForum via PhanDroid] HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS Use Your Android Phone to Comparison Shop: 4 Scanner Apps Reviewed How to Run Android Apps on Your Desktop the Easy Way

  Read the article

• SQL SERVER 2012 Editions – Highlights of The Cloud-Ready Information Platform

  - by pinaldave

  Microsoft has just announced SQL Server 2012 Editions information on official SQL Server 2012 site. SQL Server 2012 will be available in three main editions: Enterprise Business Intelligence Standard The other editions are Web, Developer and Express. Here is the salient features of each of the edition: Enterprise Advanced high availability with AlwaysOn High performance data warehousing with ColumnStore Maximum virtualization (with Software Assurance) Inclusive of Business Intelligence edition’s capabilities Business Intelligence Rapid data discovery with Power View Corporate and scalable reporting and analytics Data Quality Services and Master Data Services Inclusive of the Standard edition’s capabilities Standard Standard continues to offer basic database, reporting and analytics capabilities There is comparison chart of various other aspect of the above editions. Please refer here. Additionally SQL Server 2012 licensing is also explained here. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Business Intelligence, Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority News, SQLServer, T SQL, Technology

  Read the article

• Expensive HDMI Cables Make No Difference

  - by Jason Fitzpatrick

  While we’re no strangers to spreading the news that expensive HDMI cables are a ripoff, we’re happy to share yet another study that shows there’s zero difference between a $5 cable and a $95 one. Over at the British hardware review site Expert Reviews, they subjected a wide selection of HDMI cables to extensive tests in a bid to produce the end-all examination of whether or not a premium HDMI cable could actually produce a better signal. They used capture cards, pixel-by-pixel comparison of output, and other techniques to pick over individual frames until they ultimately reached the same conclusion everyone outside of the Monster sales staff had already reached: you’re getting absolutely no benefit to spending $100 on cable that can be had for under five bucks. Hit up the link below to read over their methodology. Expensive Cables Make Absolutely No Difference [via Geek News Central] HTG Explains: What Is RSS and How Can I Benefit From Using It? HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It HTG Explains: Learn How Websites Are Tracking You Online

  Read the article

• Comparing Checksums

  - by Sean Feldman

  This is something trivial, yet got me to think for a little. I had two checksums, one received from a client invoking a service, another one calculated once data sent into service is received. Checksums are plain arrays of bytes. I wanted to have comparison to be expressed as simple as possible. Quick google search brought me to a post that dealt with the same issue. But linq expression was too chatty and I think the solution was a bit muddy. So I looked a bit more into linq options presented in the post, and this is what ended up using: var matching = original_checksum.SequenceEqual(new_checksum); Sometimes things are so simple, we tend to overcomplicate them.

  Read the article

• Prototype experience: Unity3D vs UDK

  - by LukeN

  Has anyone yet prototyped a game in both Unity3D and UDK? If so, which features made prototyping the game easier or more difficult in each toolkit? Was one prototype demonstrably better than the other (given the same starting assets)? I'm looking for specific answers with regard to using the toolkit features, not a comparison of available features. E.g. Destructable terrain is easier in toolkit X for reasons Y and Z. I can code, so the limitations of the inbuilt scripting languages are not a problem.

  Read the article

• Anti-aliasing changed after update (or something...)

  - by Mussnoon

  The anti-aliasing of my system (of GTK?) has gone weird after I did one of two things - do a system update, and install gimp 2.7 beta. See images: Before: After: Before: After: Here's the current rendering comparison between Chromium, Firefox and Opera (in that order): Does anyone know how I can get the old anti-aliasing back? As far as I can tell, I never did anything special to achieve that before. It has always been on the default settings since I installed Lucid few months ago. Update: I have tried different settings (even though I knew they were already at the "best" settings) in appearance fonts ( details) but, as expected, any change there only makes things worse.

  Read the article

• Which programming language for text editing?

  - by Ali

  I need a programming language for text editing and processing (replace, formatting, regex, string comparison, word processing, text analysis, etc). Which programming language is more powerful and has more functions for this purpose? Since I work PHP for my web projects, I currently use PHP; but the fact is that PHP is a scripting language for web applications, my current project is offline. I am curious if other programming languages such as Perl, Python, C, C++, Java, etc have more functionality for this purpose, and worth of shifting the project?

  Read the article

• Omni-directional shadow mapping

  - by gridzbi

  What is a good/the best way to fill a cube map with depth values that are going to give me the least amount of trouble with floating point imprecision? To get up and running I'm just writing the raw depth to the buffer, as you can imagine it's pretty terrible - I need to to improve it, but I'm not sure how. A few tutorials on directional lights divide the depth by W and store the Z/W value in the cube map - How would I perform the depth comparison in my shadow mapping step? The nvidia article here http://http.developer.nvidia.com/GPUGems/gpugems_ch12.html appears to do something completely different and use the dot of the light vector, presumably to counter the depth precision worsening over distance? He also scales the geometry so that it fits into the range -.5 +.5 - The article looks a bit dated, though - is this technique still reasonable? Shader code http://pastebin.com/kNBzX4xU Screenshot http://imgur.com/54wFI

  Read the article

• Why should we use low level languages if a high level one like python can do almost everything? [closed]

  - by killown

  I know python is not suitable for things like microcontrolers, make drivers etc, but besides that, you can do everything using python, companys get stuck with speed optimizations for real hard time system but does forget other factors which one you can just upgrade your hardware for speed proposes in order to get your python program fit in it, if you think how much cust can the company have to maintain a system written in C, the comparison is like that: for example: 10 programmers to mantain a system written in c and just one programmer to mantain a system written in python, with python you can buy some better hardware to fit your python program, I think that low level languages tend to get more cost, since programmers aren't so cheaply than a hardware upgrade, then, this is my point, why should a system be written in c instead of python?

  Read the article

• Optimize strategies for xml parsing?

  - by Future2020

  I am looking for general optimization tips and guidelines for xml parsing. One of the optimization strategies is of course selecting the "right" parser. A detailed comparison between the available parsers for ios can be found here http://www.raywenderlich.com/553/how-to-chose-the-best-xml-parser-for-your-iphone-project. However, I am currently trying to investigate general guidelines and tips on how to optimize by payloads to increase the performance as possible. This question is similar to (a question I have posted in the context of ios) but I have not got a sufficient answer. So this question is not in the context of any particular programming language.

  Read the article

• My session at the Vancouver Silverlight User Group

  - by pluginbaby

  Next week I will be in Vancouver and talk at the local User Group: the Vancouver Silverlight User Group. Title: HTML5 and Silverlight 5: facts, assumptions and near future Abstract: In this session, I will try to clarify what we hear (and not hear) around these technologies, maybe add a few guess on their role in Windows 8... as well as presenting a technical comparison between HTML5 and Silverlight 5: HTML vs XAML, tools, languages, databinding, performance, etc. Date: Wednesday, July 6, 2011 Thanks Telerik to sponsor the room for this event. More details and registration: http://www.meetup.com/Vancouver-Silverlight-User-Group/events/22849231/

  Read the article

• Benchmark Against 160 Identity and Access Programs Worldwide

  - by Naresh Persaud

  Aberdeen documented the results of taking a "platform approach" to Identity and Access Management in a recent study - you can read the complete report here. Aberdeen has created an assessment tool that allows organizations to take a similar survey and compare their performance to companies surveyed in the original report. The assessment takes 5 minutes to complete and provides a complete printable report with a statistical comparison for each performance indicator. In addition, the assessment report provides guidance on improvements that organizations can take to achieve better results based on the benchmark. Take the assessment by clicking here.  You can also attend one of the physical events and discuss the results of the survey with Derek Brink the author. In the events, Derek discusses how organizations take advantage of the report. Register here. 

  Read the article

• Blog comment spammers &hellip; help!

  - by Steve Clements

  Hey, I need some advice/help, now I’ve been writing on this blog for a few years, I don’t blog a great deal in comparison to many of my peers and my blog doesn’t get a massive number of hits, BUT I seem to get a fair share of comments spammers!! I have an image verification on the comments and I have put an Akismet API key into the Geekswithblogs settings, but I still get a bunch of spam comments. They could almost be real, until you see the link going off to some dating site or casino crap. What does everyone do?? Delete them every time?? Moderate comments?? I would rather not moderate comments if possible, but is that the only way to stop the crap?? Thx Technorati Tags: spammers,comments,help

  Read the article

• IKEA Lamps Hacked into Flexible Speaker Mounts

  - by Jason Fitzpatrick

  This simple hack combines the swing arms of two IKEA work lamps with a set of computer speakers for flexible and easily adjustable sound. IKEAHackers reader Bill Dwyer wanted an easy way to get the speakers off his desk but still be able to easily adjust them. By hacking apart two IKEA work lamps (he removed the light assembly and snipped the wires off) he was able to attach his computer speakers to the arms and, in the process, get them off the desk. The arms make it super simple to adjust the speakers exactly where he wants them, including towards other parts of his office/apartment. Hit up the link below to check out more pictures and read Bill’s instructions. Very Flexible Computer Speaker Mounts [IKEAHackers] Use Your Android Phone to Comparison Shop: 4 Scanner Apps Reviewed How to Run Android Apps on Your Desktop the Easy Way HTG Explains: Do You Really Need to Defrag Your PC?

  Read the article

• How to make the transition to functional programming?

  - by tahatmat

  Lately, I have been very intrigued with F# which I have been working a bit with. Coming mostly from Java and C#, I like how concise and easily understandable it is. However, I believe that my background with these imperative languages disturb my way of thinking when programming in F#. I found a comparison of the imperative and functional approach, and I surely do recognize the "imperative way" of programming, but I also find it difficult to define problems to fit well with the functional approach. So my question is: How do I best make the transition from object-oriented programming to functional programming? Can you provide some tips or perhaps provide some literature that can help one to think "in functions" in general?

  Read the article

• Search engine friendly, SEO blog software

  - by Steve

  Is there a comparison of the SEO capabilities of different blogging software/blogging plugins? I'd like things to be as optimised as possible. I have a basic grasp of SEO principles, probably 12-24 months old. I'm about to start a blog, after having a few previously. Also, I'm not up to speed on what pings are in the blogging world. What are they, and how do they work? I assume it is best to have blogging software that automatically pings.

  Read the article

< Previous Page | 38 39 40 41 42 43 44 45 46 47 48 49  | Next Page >