|Not me, just a puzzled guy|
Jun 25, 2013
Jun 17, 2013
There is lot of talk about Business Intelligence (BI) lately. Explicitly or not, it is embedded in the advances in collecting and analyzing data. But as it usually goes, there are few companies that have adopted the BI tools and school of though while many others still lag behind. BI has been around for a while and it makes its way to wider and wide audiences. Still though, there are lot of things that the business and other organizations do not know much about it. I have tried to put together some remarks that cover general gaps and misconceptions. These come from my experience with companies from the Balkans but I guess it is applicable to other regions as well.
Jun 13, 2013
Jun 11, 2013
There are two types of models - statistical and I call "mechanical" ones. Statistical models step on data sets to extract properties, interconnections, current and future behavior. An example for that are models for customer categorization for the purposes of the financial industry, stock pricing and monthly sales. The the "mechanical model" embeds predetermined laws of nature or society, cause-and-effect dependencies, legislation and any other "hard" causative connections between entities. Examples for this sort of models include nuclear reactor model of the optimal working parameters, safety measures, energy output, etc. The general question what type model to build usually is not explicitly asked as each situation pushes toward one or another. However, a general discussion about applicability is welcome as it could give a guideline about models quality and efficacy.
Jun 5, 2013
Recently I had to work on a file provided by a client. The file was more than 70MB in size. Reducing the size was not part of the customer's request but my internal optimizer kicked in and after some investigation I found unlikely cause for this horrendous size.
Jun 4, 2013
|Eyes closed, feet high off the ground and off the target, hands uselessly spread|
You have all seen these movies where athletic guys make funny sharp noises, kick high in the sky and throw punches like machine guns. For my great delight some of them even fly from a tree to another. But this is not the movies only. Martial arts have been devalued to a simple aerobic exercise despite the tons of old Chinese, Korean and Japan proverbs written over the gym. One of the results is there too many fancy kicks, beautiful positions, tricks and very little tactics and blows that actually do the job and finish the combat. It makes me laugh to watch hard-trained guys a fight that is a display of brilliant technique and no result. The fights between real masters and professionals are rather short (don be confused by the movies). Methods and approach applied in analytics very often remind me about this lack of ability to address the real issue and hit the core of the problem.