{"id":6800,"date":"2016-11-16T07:00:13","date_gmt":"2016-11-16T15:00:13","guid":{"rendered":"http:\/\/formtek.com\/blog\/?p=6800"},"modified":"2016-10-14T09:19:32","modified_gmt":"2016-10-14T17:19:32","slug":"rogue-algorithms-how-to-lose-half-a-billion-in-an-hour","status":"publish","type":"post","link":"https:\/\/formtek.com\/blog\/rogue-algorithms-how-to-lose-half-a-billion-in-an-hour\/","title":{"rendered":"Rogue Algorithms: How to Lose Half a $Billion in an Hour"},"content":{"rendered":"

Software run amuck<\/a> — that’s what a rogue algorithm is. \u00a0It’s software that has been programmed to perform exceptionally well under normal circumstances but which acts in unexpected ways under unusual conditions.<\/p>\n

Rogue algorithmic trading has been blamed for some of the recent large swings seen in financial markets, like the ‘flash crash’ of the\u00a0British pound<\/a> and volatility seen in the\u00a0Hong Kong<\/a> stock market. \u00a0Software bugs and variability though aren’t limited to financial markets. \u00a0Rogue algorithms can show up in any software.<\/p>\n

While the benefits of software are many, when things go wrong, in the blink of an eye bad things can happen. \u00a0Consider a bug in software from Knight Capital<\/a> that caused the software to make trading errors that cost the company $440 million over the course of an hour.<\/p>\n

A recent book by Cathy O’Neil<\/a> called “Weapons of Math Destruction<\/a>” details some of the possible undesirable outcomes of algorithms that have gone awry.<\/p>\n

Much of the problem is the complexity of software solutions. \u00a0Computer scientists have found that\u00a0‘proving’ the ‘correctness’<\/a> of even very simple software is very difficult. \u00a0Many problems that people solve today with software are very complex and often rely on libraries of code from other sources that can’t be thoroughly evaluated.<\/p>\n

Yoshua Bengio<\/a>, computer scientist specializing in AI, said that<\/a>\u00a0\u201das soon as you have a complicated enough machine, it becomes almost impossible to completely explain what it does.\u00a0Think about another person or an animal\u2014their brain is computing something with hundreds of billions of neurons. Even if you could measure those neurons, it\u2019s not going to be an answer that you can use.\u201d<\/p>\n

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Software run amuck — that’s what a rogue algorithm is. \u00a0It’s software that has been programmed to perform exceptionally well under normal circumstances but which acts in unexpected ways under unusual conditions. Rogue algorithmic trading has been blamed for some…<\/span><\/p>\n

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