[References are provided since you may need some background to get this post.]
Your being as a human being is under question when you are in an arbitrary room communicating with the outside world using only a typewriter machine (1).
Your "understanding" is under question when you (a non-Chinese) are in a Chinese room (2).
An elephant's being an elephant is under question when it is being touched in Rumi's dark room (3).
(1) Turing Test
(2) Chinese room
(3) Elephant in the room
۱۳۸۷ شهریور ۲۵, دوشنبه
Being Human Being
۱۳۸۷ تیر ۱۰, دوشنبه
God and Computer Science - For Evolutionists
[previous: God and Computer Science - For Abrahamic believers]
Teaching Evolution
Even if you think you already know what evolution is about, click on the photo to review it with Mrs. Garrison:
When I was a kid I used to think that communists do not believe in God; instead they say that nature creates itself, so Nature is their God! As a result, I used to think Russians worship flowers and trees!
You see, if we don't teach these stuff in the schools, our kids have to learn it somewhere else from each other and it may make them this confused!!!
Evolution
Each generation gets some features of its parents and adds some changes (mutations) to it. Fitted offspring s have a better chance to survive. Over many generations new species appear.
Genetic Algorithms
Genetic algorithms are a class of heuristic search algorithms try to find solutions to the optimization problems. Each generation is called a population. The very first population is called "seed".
Pseudo-code of a genetic algorithm:
- Choose initial population
- Evaluate the fitness of each individual in the population
- Repeat until termination
- Select best-ranking individuals to reproduce (2)
- Breed new generation through crossover and mutation and give birth to offspring
- Evaluate the individual fitnesses of the offspring
- Replace worst ranked part of population with offspring
- Select best-ranking individuals to reproduce (2)
I think Nazis were just accelerating stage 3.1 of the algorithm (natural selection) by their "life unworthy of life" designation. Also, this picture illustrates fitness function evaluation in 3.3 in an unnatural way.
The complexity of general problem of creation is still NP-complete. However, an evolutionist believes our world is not perfect yet. Of course, it is very "close to optimal" but is "not optimal" as long as mutations make mistakes like the case I called it God's injustice here.
۱۳۸۷ تیر ۸, شنبه
God and Computer Science - For Abrahamic believers
An introduction to the theory of complexity
- P: The class of problems that are solvable with limited time and power.
- NP-Hard: The class of problems that need unlimited time or power to be solved.
- NP: The class of problems that given an instance of their solution can be verified in limited time.
- NP-complete: The class of problems that are in NP-Hard class and also are in NP.
Complexity of creation
- Making artificial things is a P-problem.
- God's creation of nature, which cannot be done with limited power of man but is scientifically understandable, is an NP-Complete problem.
- ... and miracles are not in NP!!!

The big question
How God's creation machine works(1)?
- In the beginning there was God and there was nothing. Then at the time we usually call it the Big Bang, he created an NP-solver machine.
Since then, "he just says "be" and it exists" (2). Just a simple reduction, makes creation of nothing more difficult than creation of something else!
For the same reason P /= NP, He is greater than what man can describe.
Believers and nonbelievers
Agnostics: P /=NP xor P=NP
Atheists: P = NP
Theists: P /= NP
So far, mathematician are agnostic to the problem of P==NP, but the Clay Mathematics Institute is offering a $1 million US prize to the first proof to that. I doubt theologists are this passionate for finding a definite answer to the problem of existence of God. Or, maybe that think they have already found it?
P~NP
Genetic Engineering is an approximation to the creation.
PS1. source of the second image: internet
(1) mostly based on Muslim beliefs.
(2) Quran
۱۳۸۷ خرداد ۲۹, چهارشنبه
The art of presentation
۱۳۸۷ خرداد ۲۸, سهشنبه
On Inequality and Descrimination

All people are different ...
but some people are more different than others.
Q- While even God is not fair, why should we?
A- To show we are not following him.
PS1. "All animals are equal, but some animals are more equal than others", Animal Farm.
PS2. Fingerprint and Indian kid with two faces.
۱۳۸۶ اسفند ۲۴, جمعه
3/14
"One should never trust a woman who tells her real age. If she tells that, she'll tell anything."
-- Oscar Wilde
My birthday is exactly 100 years after Einstein's birthday.
Oops! please don't google "Einstein wiki".
PS. Today, March 14 is also called Pi-Day!
Source of the image: here + paint + one of the famous photos of Einstein. I hope the lady in the original photo and Einstein don't mind this photo edition.
۱۳۸۶ اسفند ۸, چهارشنبه
em rof yrtnuoc on si erehT
tfel ot thgir gnitirw tub srettel nital gnisu ma I
?tsol I mA
PS.: I just discovered Leonardo Da Vinci has also used this style; of course for different reasons.
Source of the first image: Here + paint
Source of the second image: Here + paint
۱۳۸۶ اسفند ۲, پنجشنبه
۱۳۸۶ بهمن ۲۰, شنبه
۱۳۸۶ بهمن ۱۵, دوشنبه
Anybody needs babysitting on a deadline? I'm available ...

Acknowledgment- We wish to thank Marek Karpinski and Richard Kenyon for fruitful discussions, and the second author wishes to thank Oded Schramm for babysitting on May 4.
Reference: "A Randomized Approximation Scheme for Metric MAX-CUT", W. Fernandez de la Vega, Claire Kenyon
source of the image: here
۱۳۸۶ بهمن ۱۱, پنجشنبه
۱۳۸۶ دی ۱۸, سهشنبه
New "Year"

"356/366 days", "12 months" and "the duration Earth orbits Sun" may seem equal, but they make "Gregorian Calendar", "Lunar Calendar" and "Persian Calendar", when we use the m as the DEFINITION of a Year.
1) "Among solar calendars in wide use today, the Persian calendar is one of the most precise." source: Wikipedia
2) It is in complete harmony with seasons.
3) and 99.99% free of conventions.
4) Among all, only Persian calendar has the potential to be used by people living on other planets!
PS. Source of the image: Internet
۱۳۸۶ دی ۷, جمعه
Man and Animal
If animals and combinational circuits did not lack historical memory, they were men and sequential circuits.
"myself"
PS1. Source of the image: Internet
PS2. "Man and Animal" is also a Sadeq Hedayat's book
To see or not to see ...
The probability that a person with naked eyes sees your face clearly is much less than that of a person with glasses.
-- Albert Einstein (Theory of Relativity)
1) Did I have to lie about my reference? It was mine!source of the images: Internet + me

