Nanex, a data-services firm, has discovered mysterious high-speed trading bots operating on the major stock exchanges, executing thousands of nonsensical transactions per second (for example, they may offer to buy a stock at a price much lower than the current quote, or to sell it at a much higher price). No one knows what these bots are trying to do: is just just a DoS attack on the exchange? Radar-chaff to prevent other bots from detecting another strategy? Bad code? Some call it "algorithmic terrorism" though Nanex is calling them "crop circles." Perhaps they're merely "quote stuffing" or "market spoofing" -- the jargon is delicious.
Here we see a "flag repeater" being executed on the BATS Exchange, the third-largest equity market after the NYSE and NASDAQ. 15,000 quote requests were made in 11 seconds in a repeating pattern. Each iteration upped the quote a penny until $9.36, and then the algorithm went down the same way, a penny at a time.
The swift replacement of CRT screens with flat panels created tons of extremely toxic e-waste, with dangerous tubes and leaded glass posing unique environmental and safety hazards for disposal workers and sites.
Alibaba subsidiary Taobao has given rise to “Taobao Villages” — 18 villages that were once among China’s poorest places, where former peasant farmers have attained prosperity by working in factories that produce a single class of goods (for example, Daiji township, a remote town in Shandong where most working age people have moved away, is […]
Disney’s “skybuckets” are fondly remembered as the best place in the themepark to do some sneaky kissin’, but they were also a magnet for antisocial behavior, from smoking weed to spitting on people to jumping out of them — and they proved lethal to park maintenance crews.
Python is immensely popular in the data science world for the same reason it is in most other areas of computing—it has highly readable syntax and is suitable for anything from short scripts to massive web services. One of its most exciting, newest applications, however, is in machine learning. You can dive into this booming […]
Learning new skills is a great way to improve your resume and stand out from other candidates. Especially in a workforce in which many job-seekers have a wide variety of qualifications. With lifetime access to Virtual Training Company, you won’t have to choose a specific focus. You can pick up new expertise whenever you deem it […]
Instead of throwing out all the empties after your next party, why not transform them into some new DIY glassware? Cut back on waste and add some home ambiance with the Kinkajou Bottle Cutter and Candle Making Kit.The Kinkajou is designed as a clamp-on scoring blade to make precise cuts. Just slide a bottle in, tighten […]