Stock market prediction using neural networks

The experiment consisted of three phases (Figure A). In the first phase a genetic algorithm (GA) searched the space of NNs with different structures and resulted a generation with the fittest of all networks searched based on a metric which was either: TheilA or TheilB or TheilC or MAE. The GA search was repeated three times for each metric. Then the best three networks were selected from each repetition of the GA search and for each one of the metrics.

The output of the first phase was a set of thirtysix network structures. In the second phase for each one of the thirty-six resulting network structures we applied the following procedure. We trained (on Training1 set) and validated (on Validation1 set) the network. Then we used the indicated number of epochs from the validation procedure and based on it we retrained the network on the Training1 plus the Validation1 set. Finally we tested the performance of the network on unseen data (Validation2 set).

This procedure was repeated 50 times for each network structure for random initializations of its weights. From the nine networks for each performance statistic, we selected the most stable in terms of standard deviation of their performance. Thus the output of the second phase was a set of four network structures. During the third phase for each one of these four networks we applied the following procedure 50 times. We trained each network on the first half of the Training Set and we used the remaining half for validation. Then, using the indicated epochs by the validation procedure, we retrained the network on the complete Training Set. Finally we tested the network on the Test Set calculating all four metrics.

Source: Indian Stock Market Prediction

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Unicorn Being a Jerk

2010-08-26 09:17:06 by Snakebyte_XX


Here are my favorite moments from this book:
Ignoring a homeless person asking for money.

Destroying a sandcastle.

Trying to peek at breast-feeding women’s nipple.

Sacrificing his one and only son to higher power.

Burning ants with magnifying glass.

Hoping his son isn’t gay.

Tearing out the last page of a library book.
...

Carbon emissions cap-and-trade charade

2009-03-13 21:26:21 by Jupiter_God

Planet's health doesn't belong in free market's hands
SANTA MONICA, Calif. (MarketWatch) -- We should stop talking about putting a cap on carbon pollution and trading clean energy credits. It's madness.
Allowing the "free market" to determine the fate of our health and our planet is not the path to correctness. Aren't we seeing the fallout of the free-market system play out before us now?
Putting the health of our children in the hands of an exchange is insane. Most of us bought into this logic when the stock market was booming and financial engineers made tradable instruments of almost everything -- even risky mortgages. We should have learned our lesson. Yet there's still a movement for the United States to embark on a carbon-credit trading program based on a largely...

Stock market prediction for April 16-20: Satish Gupta  — Moneycontrol.com
By Satish Gupta of Astrostocktips Weekly planetary position: During the week, Moon will be transiting in Aquarius & Pisces. Mars in Leo, Exalted Saturn in Libra. Rahu in Scorpio. Pluto in Sagittarius, Mercury & Uranus in Pisces.

Stock market prediction for April 30-May 04: Satish Gupta  — Moneycontrol.com
By Satish Gupta of Astrostocktips Weekly planetary position: During the week, Moon will be transiting in Cancer, Leo & Virgo. Mars in Leo, Exalted Saturn in Libra. Rahu in Scorpio. Pluto in Sagittarius, Mercury & Uranus in Pisces.

STOCK MARKET PREDICTION: The Historical & Future Siderograph Charts & Software.
Book (www.sacredscience.com Sacred Science Institute)

Stock market prediction for May 07-11: Satish Gupta  — Moneycontrol.com
By Satish Gupta of Astrostocktips Weekly planetary position: During the week, Moon will be transiting in Scorpio, Sagittarius & Capricorn. Mars in Leo, Exalted Saturn in Libra. Rahu in Scorpio. Pluto in Sagittarius, Uranus in Pisces.


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