analysis

Analysing a Digital/Analog signal via Microphone

I just need to be pointed in the right direction as I may be in over my head here. If I wanted to write a program to analyze a sound wave how would I go about this? I have an idea that it will involve a mixture of a maths package (like mathematica or matlab) and C or C++ but not sure where to start. I'm only wondering at the moment...

How to overcome the programmer's block ?

How do you do when, during the development of your application, you can't decide yourself what to do next. You have no problem technically speaking, you have no problem to write clean code BUT you have a problem to decide yourself on what to code now. And you spend time thinking and thinking again on your design, in the car, in the sho...

Escape analysis in Java

As far as I know the JVM uses escape analysis for some performance optimisations like lock coarsening and lock elision. I'm interested if there is a possibility for the JVM to decide that any particular object can be allocated on stack using escape analysis. Some resources make me think that I am right. Is there JVMs that actually do it...

Simple data - I just need simple way to analyze

Summary I am after some advice on the easiest way to analyze simple data using SQL server and .net Details Really simple data - just need really simple way to analyze (with my simple brain) I have a SQL Server table: PKID (Int) ApplicationName (VarChar) MethodName (VarChar) TimeInMs (Integer) AdditionalInfo (VarChar) DateTime (Da...

Lattix architecture analysis tool

I came across Lattix for analysing the architecture by investigating the code. It supports C/C++, Java, .Net, etc. One can define certain rules to maintain the defined architecture. The tool can flag any violations at build time. Has anybody used this or any other similar tool? I see some benefit of this tool in development but not sure...

analysis of filesystem

So, trying to find some utility(ies) to give us statistical information on this thing. For example, what files were created in the last 30, 60, 90 days, 6 months, etc. What are their sizes? Something with sortable reports would be nice. I know we can do some things with a variety of command line switches for ls and using du, but thes...

How to categorize and tabularize free-form answers to a question in a survey?

I want to analyze answers to a web survey (Git User's Survey 2008 if one is interested). Some of the questions were free-form questions, like "How did you hear about Git?". With more than 3,000 replies analyzing those replies entirely by hand is out of the question (especially that there is quite a bit of free-form questions in this surv...

Detecting Overanalysis

How do I know if I am overanalysing? I've been chasing a problem the last 3 days. I've been through many designs and reached a complex solution using about 3 classes. Having discussed with a colleague, I realized that all I need is one method and a struct. How can I avoid being an architecture astronaut? ...

Which tools do you use to analyze text?

I'm in need of some inspiration. For a hobby project I am playing with content analysis. I am basically trying to analyze input to match it to a topic map. For example: "The way on Iraq" > History, Middle East "Halloumni" > Food, Middle East "BMW" > Germany, Cars "Obama" > USA "Impala" > USA, Cars "The Berlin Wall" > History, Germany ...

Is there a relation between static code analysis and application performance

My Question: Performance tests are generally done after an application is integrated with various modules and ready for deploy. Is there any way to identify performance bottlenecks during the development phase. Does code analysis throw any hints @ performance? ...

PostgreSQL Data Analysis / Aggregates

I have a table in PostgreSQL with the following structure & data: Question | Answer | Responses --------------------------------------- Burger BigMac 8 Burger Whopper 19 Burger Cheeseburger 4 Drink Coke 22 Drink Water 1 Drink Juice ...

Tool for analyzing java core dump

If i make java core dump with gcore then what is the best tool to analyze it? I need to be able make jmap, jstack, jstat etc and also i need to see values of all variables. Something that can take core dump as frozen JVM. ...

Analyze execution time of queries on MySQL database?

I am using a MySQL database with myPHPadmin as the frontend (I am not sure I have remote/client access yet). I have a script that queries the database and would like to see how long each query takes? What is the easiest way to do this? Could I install another PHP app on the server? Thanks! ...

Using "Show values as" option in Excel 2007 pivot table when source is SSAS cube?

I have an Excel 2007 pivot table showing "Year" across the top and "Month" down the side. What I am trying to do is represent the values as "% Difference" from the same month of the previous year. (Ex. If Jan-07 is $100,000 and Jan-08 is $120,000, I would like Jan-08 to show '20%'). However, every time I try to do this (using the "Sh...

Basic Complexity Question - Convolution

Hi All, I'm trying to evaluate the complexity of some basic image filtering algorithms. I was wondering if you could verify this theory; For a basic pixel by pixel filter like Inverse the number of operations grows linearly with the size of the input (In pixels) and Let S = Length of the side of the image Let M = # pixels input Inve...

How can I analyze a closed format (e.g. doc or vce)?

I want to study the .vce format. It's a binary format and it seems more complicated than a simple object serialization. Does it exist any tool or technique to analyze a binary format? ...

How can I determine how loud a WAV file will sound?

I have a bunch of different audio recordings in WAV format (all different instruments and pitches), and I want to "normalize" them so that they all sound approximately the same volume when played. I've tried measuring the average sample magnitude (the sum of all absolute values divided by the number of samples), but normalizing by this ...

Performance data analysis in SharePoint

Are there any tools on the market that effectively analyze data in SharePoint lists? I have a client looking to analyze and report on employee performance data stored in SharePoint. ...

Algorithms for named entity recognition

Hello! I would like to use named entity recognition (NER) to find adequate tags for texts in a database. I know there is a Wikipedia article about this and lots of other pages describing NER, I would preferably hear something about this topic from you: What experiences did you make with the various algorithms? Which algorithm would y...

"Entity" vs. "entity information" dichotomy in a business model - is it really necessary in an "analysis model"?

My question is not exactly about programming per se, but I think SO has already overgrown its "programming-only" scope... For those who don't like to read long introductions, here is my attempt to formulate the question without any background - the chances are some of you could understand right away what I am asking about: Q: When deve...