Many times we find ourselves working on a problem, only to figure out the solution being created is far more complex than the problem requires. Are there controls, best practices, techniques, etc that help you control over complication in your workplace? ...
I need to find the frequency of a sample, stored (in vb) as an array of byte. Sample is a sine wave, known frequency, so I can check), but the numbers are a bit odd, and my maths-foo is weak. Full range of values 0-255. 99% of numbers are in range 235 to 245, but there are some outliers down to 0 and 1, and up to 255 in the remaining 1%...
Normal practice is to use case studies, construct work- and data-flows, etc. But this does not necessarily create a shared vocabulary between the user/sponsor and the analyst-designer: one or the other, both normally, will have to acquire terms and views of the "internals" of the others area of expertise, and this usually leads to misund...
Is there a .NET performance counter to show the rate of p/invoke calls made? I've just noticed that the application I'm debugging was making a call into native code from managed land within a tight loop. The intended implementation was for a p/invoke call to be made once and then cached. I'm wondering if I could have noticed this mist...
I'd be very grateful if you could compare the winning O’Rourke's Perl solution to Lundh's Python solution, as I don't know Perl good enough to understand what's going on there. More specifically I'd like to know what gave Perl version 3x advantage: algorithmic superiority, quality of C extensions, other factors? Wide Finder: Results ...
When you move from analysis of the requirements through design, you go through a decomposition/workflow/dataflow/composition/etc process. I need tools to facilitate this process. The result of analysis & design would be an implementation design which I can happily document using UML. I cannot use UML for analysis & design: it is a...
Have done fft (see earlier posting if you are interested!) and got a result, which helps me. Would like to analyse the noisiness / spikiness of an array (actually a vb.nre collection of single). Um, how to explain ... When signal is good, fft power results is 512 data points (frequency buckets) with low values in all but maybe 2 or 3 ar...
I'm trying to determine the asymptotic run-time of one of my algorithms, which uses exponents, but I'm not sure of how exponents are calculated programmatically. I'm specifically looking for the pow() algorithm used for double-precision, floating point numbers. ...
We are migrating our test report data (unit, regression, integration, etc..) from an XML format to a database format for better analysis. Right now the majority of our test analysis is done using the CruiseControl.NET dashboard, but this is limited to primarily the most recent test data. Older test data can be accessed but not easily com...
How can I read the colors of an image with python using google app engine? Example: I like to build a function to determine the most striking colors of an image to set a harmonic background color for it. ...
Hi I’m working on the project server 2007 analysis service , and when i wanted to do some customization including adding dimension to a cube i faced the following problem : simply when i start the cerate new dimension wizard and after selecting dimension type the following error appears and the wizard crash TITLE: Microsoft SQL Serv...
I'm working on a project where I need to analyze a page of text and collections of pages of text to determine dominant words. I'd like to know if there is a library (prefer c# or java) that will handle the heavy lifting for me. If not, is there an algorithm or multiple that would achieve my goals below. What I want to do is similar...
My fact table looks like this yesterday a yesterday a yesterday a yesterday b yesterday b yesterday c today a today a today b today b tommorow a tommorow a tommorow c tommorow d In the end I need an Excel report like this repetition count 1 2 3 yesterday 1 1 1 tod...
I want to be good in Data Structures and Analysis esp. in Java. I often find myself very weak. What should I do to be good in it? Any good mental exercises? ...
Hello, I am doing analysis on schema evolution and have really fallen short of real world database schemas that have evolved a bit and stored in version control. Mediawiki (http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/maintenance/tables.sql) seems to be a very good candidate so far. I've considered Bugzilla, but they don't se...
I need a "result server" that can store my raw test data (server cpu, memory usage, etc), create report template (e.g. user number vs response time), generate live-reports base on templates, and perform complicated analysis (such as 70/80/90 percentile charts, data distribution comparison between test, etc.) ...
Hi, I'm a non-computer science student doing a history thesis that involves determining the frequency of specific terms in a number of texts and then plotting these frequencies over time to determine changes and trends. While I have figured out how to determine word frequencies for a given text file, I am dealing with a (relatively, for...
It may be Water fall, iterative or agile development or anything else. No matter what development lifecycle mode we talk about there always several perspectives for same problem. From business to problem oriented and further to programming, testing, etc. So question is how are modern companies use modern advanced methodologies to transl...
Could somebody tell me wich new dynamic tools analysis for C-code are there like valdgrind? ...
I have a sequence of SQL calls, which I want to use to detect loops (and hence unnecessary duplicate sql calls), but it got me thinking of this more general problem. Given a list, say [a,b,c,b,c,a,b,c,b,c,a,b,b] Is there some way I can turn that into a,[[b,c]*2,a]*2,b*2 or, [a,[b,c]*2]*2,a,b*2 That is, detect repetitions (possibly ne...