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Differential Directory, indexing method 3 Weeks Ago by xrjf **Features:** * Retrieves the differentiating bit of a key with respect to the previous one and stores only this position in the index. * With at most one single disk read, assuming the index is in memory, it determines whether the key exists or not. * The index is always sorted and therefore requires no reorganization. * Performance is … Re: Differential Directory, indexing method 3 Weeks Ago by rproffitt DiDi appears to be some China based UBER service but then again I can't find a question or much else to discuss here. Re: Differential Directory, indexing method 3 Weeks Ago by xrjf About DiDi DiDi (Differential Directory) was originally developed as part of my thesis project in the early 1990s. The name bears no relation to the more recent Chinese ride-sharing company. At the time, DiDi was a novel approach within its academic context, but a change in legislation unfortunately led to the closure of the school and the … Re: Differential Directory, indexing method 3 Weeks Ago by xrjf For example, as Donald Knuth points out in The Art of Computer Programming, the theoretical lower bound for comparison-based sorting algorithms is K × log₂(N). I developed a very simple method that matches this performance. However, DiDi goes far beyond: its performance is proportional to K × (maximum key length), regardless of the number of … Re: Differential Directory, indexing method 3 Weeks Ago by xrjf As an illustration, consider the theoretical lower bound for comparison-based sorting, as stated by Donald Knuth in The Art of Computer Programming: K × log₂(N). I developed a simple method that matches this limit. For example, to sort the list {2, 5, 7, 1, 4, 3, 8, 6}: Sort pairs: (2, 5) → [1] (1, 7) → [2] (3, 4) → [3] (6, 8) → [4] Merge… Re: Differential Directory, indexing method 3 Weeks Ago by xrjf "Just to clarify a previous mistake: the efficiency should be K × N × log₂(N), not K × log₂(N) as I initially wrote." Re: Differential Directory, indexing method 2 Weeks Ago by xrjf I've just made an update because some records weren't being added properly. The issue was that the form didn't take into account that the register field (in the call to DiDi) is passed by reference. Re: Differential Directory, indexing method 1 Week Ago by xrjf Just a quick update for anyone interested: I have revisited and significantly improved the code, aiming for a more professional structure and better performance. The updated version avoids freezing the UI during long operations and follows more robust programming practices. If you’d like to see DiDi in action, there is also a video … J.A.M.D. 22 Years Ago by Z28James over the last few weeks ive tried out rh8, mdk 9.1, knoppix 3.1, gentoo, yoper, debian sarge, and j.a.m.d and by far...except for gentoo, j.a.m.d was the coolest in my opinion. its a slimmer version of rh8 recompiled for i686 cpus. you all should try it...i like it alot. but i do admit i like gentoo...well purely cuz of the fact that i got it to … Re: 'J' Suffix and Swing 16 Years Ago by VernonDozier [QUOTE=curtissumpter;802419]Is it safe to assume that any object that is preceded with the letter 'J' is a member of the Swing package? Just trying to get lightweight versus heavyweight components sorted properly. Thanks. -- Curtis[/QUOTE] It's mostly, but not all, Swing. Here are the J's [url]http://java.sun.com/javase/6/docs/api/… J# invalid paramater at runtime 17 Years Ago by alcoheca Hi, I have this issue with a J# project I need to complete for uni. [CODE=java]public class Sprite { private Image m_image; public Sprite(Image image) { m_image = image; } public int getWidth() { return m_image.get_Width(); } public int getHeight() { return m_image.get_Height(); } public void draw(Graphics g, int x, int y) {… Re: J# invalid paramater at runtime 17 Years Ago by alcoheca No one has any idea? start of rant: MSDN Forums are dead, no one is using J#, my lecturer is useless.. why force us to use this language with such limited support docs, examples, etc... 'J' Suffix and Swing 16 Years Ago by curtissumpter Is it safe to assume that any object that is preceded with the letter 'J' is a member of the Swing package? Just trying to get lightweight versus heavyweight components sorted properly. Thanks. -- Curtis Re: 'J' Suffix and Swing 16 Years Ago by stultuske [QUOTE=curtissumpter;802419]Is it safe to assume that any object that is preceded with the letter 'J' is a member of the Swing package? Just trying to get lightweight versus heavyweight components sorted properly. Thanks. -- Curtis[/QUOTE] assuming this could get you into a lot of unknown problems when using an openSource package. any Joe-… Re: J.F.K. assassination 17 Years Ago by sk8ndestroy14 Well, here goes, vaguely (sp). J.F.K. serioudly talked about dismantling the C.I.A. This would put all of them out of jobs and the C.I.A. obviously didn't want that. "Why was Lee Harvey Oswald allowed back into the United States after defecting to the Soviet Union with virtually no questions asked?" Oswald's office in New Orleans was the … jtable problem............... 13 Years Ago by Jessurider i've created a database project in java in which a jtable is used to display the contents of the database.......i've also created an option for insertion of values through a textfield by button actionperformed into the database ......and now when i inserts a particular values through the textfield and when i press the button the corresponding … Infected j think 16 Years Ago by waterfrom Infected? The computer restart by it self. and say it recover after a big fail and its save a log file too( minilog) Possible virus ,But j cant find anything. Windows XP SP2. Avg antivirus 8.0 Windows built in firewall J have run this programs avg fullscan eset onlinescan spyboot search destroy malwarebytes,anti-malware. ccleaner Hijack this(… ripemd160 not working 15 Years Ago by calccrypto i cannot find the mistake i made with this code. i have tried many different ways to create ripemd160, but they either don't work or give me wrong outputs. what did i do wrong? [CODE] # makehex() = change the value into a 8 hex char string # ROL i got from another code, and I know it works # little_end() = move each byte (2 hex … Re: Infected j think 16 Years Ago by waterfrom what j call minilog is the Minidump file.. This have going on for3-4weeks now. shutdown 5-6 times every day and it say it have recover after a critical error. It`s drive me crazy. J have done all j come up with. Please help Re: Infected j think 16 Years Ago by waterfrom hello. J run eset antivirus and M alwareAnti malware, ccleaner ,atf cleaner. spyware terminator.j downloaded eset and run the scan. and j run mcafee rootkit detective. How large is the hard drive? j got 185 gb free space How much RAM is installed? About 1536Ram When do these occur? not sure what you mean What are you doing … Re: Infected j think 16 Years Ago by waterfrom hello sorry forgot hijackthis log her it is. And yes j have follow every step for clean computer Re: Infected j think 16 Years Ago by waterfrom hello. J just try to take away avg if that was theproblem, but the same thing happend again, back to avg. Yes j dont have many program on my pc. ye it could be, But j not sure what services shall run and what j can disable? Re: Infected j think 16 Years Ago by waterfrom hello again j just run combofix and it was few things there that combofix repair. The one thing combofix fix was some recovery file and 3 more files. That was cool enough. But j run mcafee rootkit detective, and it was something there that was not there earlyer. Is they a problem? 'Object-Type: SSDT-hook Object-Name: … Re: Infected j think 16 Years Ago by waterfrom Hello. Sorry. Am understand now how frustrating that was for you. J am very very Sorry, but j was so frustrated with the shutdown all the time, and j was not able to run my web store. Am sorry j run those programs. j did not do anyhing with the mcAfee program. But j run the combofix . J was not sure if combofix was that powerful tool, if … Re: ripemd160 not working 15 Years Ago by calccrypto i meant [CODE] T = (ROL((a + F(b, c, d, j) + X[r[j]] + k[j/16])%2**32, s[j]) + e)%2**32 a = e; e = d; d = ROL(c, 10); c = b; a = T T = (ROL((aa + F(bb, cc, dd, 79-j) + X[rr[j]] + kk[j/16] )%2**32, ss[j]) + ee)%2**32 aa = ee; ee = dd; dd = ROL(cc,10); cc = bb; aa = T [/CODE] but the ouput barely changed Java EE 18 Years Ago by ede hi, folks! ı'm last year student at university. so ı must do a thesis. ı'm a bit confused about what ı should decide to. actually ı think to search about distributed systems which are based over RMI/CORBA. maybe you know that java EE is a platform that is based over RMI/CORBA communication. what ı want to ask to you is : what can ı do with … Re: Activating list in MS VC++ EE. 18 Years Ago by Bench I assume the feature you're talking about is MSVC++'s IntelliSense. You should be able to show the list by pressing CTRL+J after the scope operator for classes/namespaces, or the period operator for objects. [I]Note - This works in MSVC++ .NET 2003 SE. If it doesn't work for your version, check Microsoft's site for IntelliSense.[/I] Re: Activating list in MS VC++ EE. 18 Years Ago by JoBe I do believe it is related to Intellisense, because when I enter for instance std:: I get a message: 'No additional information available'. It's that information I want again. In the past, when I entered std:: --> I got a list with all possibilities, the same for instance with cin. --> I got a list with for example get, clear, ignore, etc… CS vs EE, CS Degree and other questions 19 Years Ago by TheGroove Hello. First off, let me say that if this has been brought up before I apologize. I'm currently a junior at the University of Colorado and am majoring in CS with a minor in business. I was an ECE major and switched to CS due to the fact that I just didn't care about how the computer works. However, after taking some more classes, the process of… Java SE or Java EE? 14 Years Ago by glenak I've been programming in Java using Java SE, but I want to move on to Java EE. Is this a good idea? I used to think I had to pay to download the Java EE SDK, but that's not the case. So, basically, I'm a bit confused about what Java EE offers that I can't do on SE. Does any of you lot use Java EE?