Rana Basheer
Why is buying a good used car a futile proposition
The market for lemons is an interesting article that explores the effect of information asymmetry in a sale. Simple day-to-day activities...
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Rana Basheer
- Feb 14, 2014
- 4 min
Mathematics of Love
While going through volumes and volumes of whatsapp message logs of my communication with my fiance, I had this realization that there is...
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Rana Basheer
- Jan 9, 2014
- 3 min
Marcum the Extremist
“Moderation is the center wherein all philosophies, both human and divine, meet.” – Benjamin Disraeli extremist enough. While being bed...
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Rana Basheer
- Mar 3, 2013
- 4 min
Extreme Events and Signal Detection
An idea has been simmering in my mind for sometime regarding the statistical nature of signal detection in a wireless receiver....
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Rana Basheer
- Feb 18, 2013
- 4 min
First world problem of Global Positioning Systems
In ancient times, circa AD 2000, getting a GPS device to give you an accurate location was nothing short of a black magic art. After...
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Rana Basheer
- Jan 24, 2013
- 5 min
Physics of Wall Street
This book chronicles the trials and tribulations of those who toiled hard, despite being ostracized by mainstream scientist, to develop a...
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Rana Basheer
- Dec 28, 2012
- 1 min
Granger Causality
Granger causality is one of several tools that are extensively used to figure out cause and effect (causal) relationship from data....
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Rana Basheer
- Dec 28, 2012
- 2 min
Pitfalls of Data Driven Models
Defining a system from data is poor mans version of research. If you don’t understand a complicated system, then throw in enough data and...
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Rana Basheer
- Dec 7, 2012
- 5 min
Information from noise
If you ever wondered why your good cellphone connection just started making that scratchy noise when you stepped couple of feet away or...
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Rana Basheer
- May 19, 2011
- 2 min
Interesting probability problem – Crazy airplane guy
This problem I found on the following website. I am just restating it below A line of 100 airline passengers is waiting to board a plane....
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Rana Basheer
- Apr 21, 2011
- 1 min
Alpha Divergence
On several occasions you want to classify an observation x into one of two categories Depending on which ever probability is higher we...
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Rana Basheer
- Apr 20, 2011
- 2 min
Particle Filtering
A brief introduction on particle filtering – a.k.a stochastic filters. We will start with our problem statement In some engineering...
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Rana Basheer
- Mar 28, 2011
- 1 min
Non-coherent Integration For Signal Detection
N-Point FFT on a standard gaussian noise results in real and imaginary results that are gaussian distributed with variance N/2. This...
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Rana Basheer
- Mar 26, 2011
- 2 min
Max to Mean Ratio of Normal data
One oversimplified method to look for a valid signal in a frequency band is to first compute the FFT of the signal in the desired...
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Rana Basheer
- Mar 25, 2011
- 1 min
Hitting Time
This weekend I talked to my favorite professor about my previous supposedly simple probability problem. He quickly pointed out that this...
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Rana Basheer
- Mar 18, 2011
- 1 min
Simple probability problem
I have a normal random variable that varies with time t as where Detection criterion is when the random variable So what is the...
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Rana Basheer
- Mar 15, 2011
- 2 min
Paper due in 3 weeks and I am freaking out
So this is the first time I got into a “cart before the horse” situation with regarding to writing technical papers. I have collected...
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Rana Basheer
- Mar 15, 2011
- 2 min
Copula in statistics
Recently I came across this method commonly applied in financial statistics for computing joint distributions from marginal distributions...
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