TOMOHIRO OHSUMI/BLOOMBERG NEWS 百 度(Baidu Inc.)近来报喜称，已在一项备受关注的人工智能标准化测试中击败谷歌(Google Inc.)和微软(Micro......

https://www.cac.cornell.edu/vw/matlab/tips7.aspx To complement its two-dimensional line plots, MATLAB also provides the ‘surf’ function for making three-dimensional (surface) plots. Plots of this sort are useful in many areas of science and engineering, in particular for making diagrams and teaching simple concepts in optimization and vector calculus. Unfortunately, creating surface plots has not always been completely straightforward in MATLAB, and actually required the helper function ‘meshgrid’ in order to work correctly. Newer versions have ameliorated some of this difficulty by accepting vector input arguments, but here we will describe the “classic” wayRead More

http://spin.atomicobject.com/2014/06/24/gradient-descent-linear-regression/ Gradient descent is one of those “greatest hits” algorithms that can offer a new perspective for solving problems. Unfortunately, it’s rarely taught in undergraduate computer science programs. In this post I’ll give an introduction to the gradient descent algorithm, and walk through an example that demonstrates how gradient descent can be used to solve machine learning problems such as linear regression. At a theoretical level, gradient descent is an algorithm that minimizes functions. Given a function defined by a set of parameters, gradient descent starts with an initial set ofRead More

The following statistics give a general picture of the freshman andtransfer applicants and admits. We caution you against a narrow interpretation of this data. We are providing it because we are often asked to evaluate an applicant’s chances of admission based on certain criteria. To make such a judgment without reading an entire application is impossible, but the following information may prove useful to you. Bear in mind that an applicant in the top of one group may not be in the same position on another measure and that the rigor ofRead More

环球网讯 据英国《每日邮报》6月14日报道，一名来自芝加哥的学生爱莉安娜·亚历山大（Arianna Alexander）凭借5.1的GPA接到了26所大学的录取通知书，而且其中至少有6封来自常春......

2015-05-20 19:49:20     4月23日，中央纪委书记王岐山在与美国斯坦福大学政治思想史学者弗朗西斯•福山（Francis Fukuyama）的会晤谈话中，数次提及日本著名蒙古......

1. Thomas Jefferson High School for Science and Technology – Annandale, Virginia Facebook.com/TJHSST SAT composite range: 2220-2280 All courses at Thomas Jefferson High School for Science and Technology are taught at the gifted, honors, AP, or post-AP level, and, in 2014, over 97% scored a 3 or higher on their AP exams. Last year’s senior class matriculated into some of the best colleges in the country; 10 or more students went to schools like Brown, Stanford, UPenn, MIT, and Johns Hopkins. U.S. News ranks Thomas Jefferson the best high school in the state,Read More