两个人做人爱视频免费,97久久精品人人搡人妻人人玩,欧洲精品码一区二区三区,999zyz玖玖资源站永久

我要投稿 投訴建議

考研英語(yǔ)報(bào)刊文章閱讀

時(shí)間:2021-02-14 08:36:40 考研英語(yǔ) 我要投稿

考研英語(yǔ)報(bào)刊文章閱讀

  Computerised trading agents may help humans build better markets。

考研英語(yǔ)報(bào)刊文章閱讀

  THANKS to slumping markets, investment banks are shedding many of their highly-paid traders. When markets recover, the banks might be tempted to replace them with rather cheaper talent. One alternative has been around for a while but has yet to catch on: autonomous trading agents-computers programmed to act like the human version without such pesky costs as holidays, lunch breaks or bonuses. Program trading has, of course, been done before; some blamed the 1987 stockmarket crash on computers instructed with simple decision-making rules. But robots can be smarter than that.

  Dave Cliff, a researcher at Hewlett-Packard Laboratories in Bristol, England, has been creating trading robots for seven years. In computer simulations he lets them evolve genetically , and so allows them to adapt and fit models of real-world financial markets. His experiments have suggested that a redesign of some markets could lead to greater efficiency. Last year, a research group at IBM showed that Mr Cliff s artificial traders could consistently beat the human variety, in various kinds of market. Nearly all take the shape of an auction. One well-known type is the English auction, familiar to patrons of the salesrooms of Christie s and Sotheby s, where sellers keep mum on their offer price, and buyers increase their bids by stages until only one remains.

主站蜘蛛池模板: 紫云| 琼结县| 焦作市| 托里县| 曲周县| 阿勒泰市| 高平市| 赤壁市| 基隆市| 察哈| 溧阳市| 南安市| 宜州市| 泰宁县| 莲花县| 石首市| 徐闻县| 天峻县| 静宁县| 平凉市| 陆良县| 东乡| 桓仁| 余庆县| 资源县| 韶关市| 威海市| 车致| 宿迁市| 永济市| 定州市| 台东市| 崇州市| 许昌县| 平湖市| 精河县| 陇川县| 沙坪坝区| 宜阳县| 侯马市| 肇庆市|