# -*- coding: utf-8 -*- """ Created on Wed Aug 10 08:10:35 2016 @author: Administrator """ ''' 关于:cross_validation.scores 此处cross_validation.scores并不是cross_validation的scores, 而是分类函数(本文是clf,svm)的scores分成K部分K-1是训练1次是测试共K个scores…

Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes" be…

D. Memory and Scores   Memory and his friend Lexa are competing to get higher score in one popular computer game. Memory starts with score a and Lexa starts with score b. In a single turn, both Memory and Lexa get some integer in the range [ - k;k] (…

function script_faster_rcnn_demo() close all; clc; clear mex; clear is_valid_handle; % to clear init_key run(fullfile(fileparts(fileparts(mfilename('fullpath'))), 'startup')); %% -------------------- CONFIG -------------------- opts.caffe_version = '…

Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes" be…

做到这题时卡了不少时间,参考了别人的解法,觉得挺不错的,还挺巧妙. SELECT s2.Score,s1.Rank From ( SELECT S1.Score, COUNT(*) as Rank FROM (SELECT DISTINCT Score from Scores) as S1, (SELECT DISTINCT Score from Scores) as S2 Where S1.Score<=S2.Score Group By S1.Score ) s1 ,Scores s2 WH…

Using names.txt (right click and 'Save Link/Target As...'), a 46K text file containing over five-thousand first names, begin by sorting it into alphabetical order. Then working out the alphabetical value for each name, multiply this value by its alph…

Memory and Scores 题目链接:http://codeforces.com/contest/712/problem/D dp 因为每轮Memory和Lexa能取的都在[-k,k],也就是说每轮两人分数的变化量在[-2k,2k]: 故可以定义状态:dp[times][diff]为第times次Memory和Lexa的分数差为diff的方案数. 而dp[times][diff]可以从dp[times-1][diff-2k]到dp[times-1][diff+2k]转移而来: 又因为变化…

在目前的snacoda里集成的sklearn已经不存在cross_validation模块了 使用以下模块 from  sklearn.model_selection  import train_test_split…

Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. In other words, there should be no "holes" be…