Decentralized meta-learning

Gasherbrum2 - the aftermath

Mountaineering

Posted on August 12, 2021 | 8 minutes | 1629 words | Iulian Costan

To make a long story short I am going to lay down only a few DOs/DON'Ts (as a reminder for myself), the raw and uncut (but spellchecked) journal, and the expenses for the curious minds. [Read More]

Gasherbrum2 - how to compare gear

Mountaineering

Posted on May 27, 2021 | 3 minutes | 598 words | Iulian Costan

I need to choose between a 229 EUR down hoody that weights 319g and one that is 269 EUR and 420g… which one will you go for? [Read More]

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Gasherbrum2 - gear list

Mountaineering

Posted on May 10, 2021 | 6 minutes | 1070 words | Iulian Costan

Always changing gear list, updated for high altitude mountaineering Gasherbrum2 expedition. Naming conventions: [Read More]

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Gasherbrum2 - training plan

Mountaineering

Posted on April 15, 2021 | 5 minutes | 922 words | Iulian Costan

With only two months remaining until the Gasherbrum2 expedition I put together a training plan, kind of writting in stone, let's see how it goes. [Read More]

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New Market Wizards

Review

Posted on April 7, 2021 | 9 minutes | 1855 words | Iulian Costan

The second market wizards book, named simply New Market Wizards was actually published before the Hedge Fund Market Wizards book, a bit older but as the saying goes… oldies but goldies. [Read More]

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Bias vs. Variance

Statistics

Posted on March 30, 2021 | 2 minutes | 256 words | Iulian Costan

I don't know about others but when I started digging into machine-learning I had some problems understanding bias-variance until I found a nice target shooting analogy. [Read More]

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Historical volatility

Trading

Posted on March 17, 2021 | 5 minutes | 920 words | Iulian Costan

Historical volatility (also called realized volatility) measures how far the normal standard deviation is from expected mean, over a given period of time. [Read More]

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Whale alert

Trading

Posted on February 27, 2021 | 1 minutes | 104 words | Iulian Costan

Very simple pivot-point indicator that tries to detect whales' presence by checking the spikes in volume at the same UTC hour for the last 3 days. [Read More]

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Incomplete guide to Options Greeks

Finance

Posted on February 16, 2021 | 4 minutes | 730 words | Iulian Costan

Greeks or Options Greeks are tools/statistics which measure sensitivity (responsiveness, calculus anyone?) of option price to changes in various parameters: underlying price, volatility, time, etc… [Read More]

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Black-Scholes formula

Finance

Posted on January 28, 2021 | 4 minutes | 748 words | Iulian Costan

Black-Scholes formula… maybe not as important and well-known as compounding interest-rate but still the most famous formula among options traders. [Read More]

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