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Exchange rates Time Limit: 1000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 157 accepted submission (s): 89 Problem descriptionnow that the loonie is hovering about par with the greenback, you have decided to use your $1000 entrance scholarship to engage in currency speculation. so you gaze into a crystal ball which predicts the closing exchange rate between Canadian and U. s. dollars for each of the next sever

executor, needs to the data scale appraisal, has the resource appraisal, has made the assessment to the existing resources idle, for example whether decides needs more resources, Data in the Batchduration stream will have data shards, each data shard processing needs to be more than cores, if not enough to apply with many executors.SS provides the elastic mechanism, see the speed of the slip in and processing speed relationship, whether time to deal with, too late to deal with the word will dyn

Uboot and kernel baud rate are different, after uboot startup, modify the Uboot parameter:Set Bootargs ' noinitrd root=/dev/mtdblock3 init=/linuxrc console=ttysac0,115200 '1, first need to print out the Uboot parameter information, such as my information as follows: (This is my revised printing parameters)　　2, corresponding Bootargs this line parameter, only need to modify or add the corresponding baud rate parameter after console=ttysac0 such as: 1152003, Save: Save the parameters, and then sta

Find a lot of information on the Internet, PHP is much more, and then found a CSV file. The processing is very troublesome, the foreign site speed is very slow.Finally, to fetch data on the page, I grabbed from the Bank of China, you can go to other sites crawl.1. Analog Request URL.String url = "Http://srh.bankofchina.com/search/whpj/search.jsp?"pjname=1316 ";HttpWebRequest request = webrequest.create (URL) as HttpWebRequest;Request. Method = "GET";Request. ContentType = "text/html; Charset=utf

= "Content"]/div[2]/h3/text ()')[0] #以下依次都是进行抓取有效的数据, village=selector.xpath ('//*[@id = "Content"]/div[3]/div[1]/div[3]/div/div[1]/div/div[1]/dl[1]/dd/a/text ()')[0] Price=selector.xpath ('//*[@id = "Content"]/div[3]/div[1]/div[1]/span[1]/em/text ()')[0] Style=selector.xpath ('//*[@id = "Content"]/div[3]/div[1]/div[3]/div/div[1]/div/div[2]/dl[1]/dd/text ()')[0] Area=selector.xpath ('//*[@id = "Content"]/div[3]/div[1]/div[1]/span[3]/em/text ()')[0] Unit_price=selector.xpath ('//*[@id = "Content

), + Ss_y.inverse_transform (dis_knr_y_predict))) the Print("the average absolute error of the distance weighted K-nearest neighbor regression is:", Mean_absolute_error (Ss_y.inverse_transform (y_test), - Ss_y.inverse_transform (dis_knr_y_predict))) $ the " " the the default evaluation value for the average K-nearest neighbor regression is: 0.6903454564606561 the the r_squared value of the average K-nearest neighbor regression is: 0.6903454564606561 the Mean square error of average K nearest ne

Find a lot of information on the Internet, PHP more, and then find a CSV file, processing is very troublesome, foreign sites slow.Finally, to fetch data on the page, I grabbed from the Bank of China, you can go to other sites crawl.1. Analog Request URL.String url = "http://srh.bankofchina.com/search/whpj/search.jsp?pjname=1316"; HttpWebRequest request = webrequest.create (URL) as HttpWebRequest; request. Method = "GET"; request. ContentType = "text/html; Charset=utf-8 ";

The development of Linux has exceeded Microsoft's imagination in recent years, and has caught up with Microsoft's trend. As a result, most people begin to learn about Linux. Generally, in Linux, set the serial port to use function settings related to terminal I/O, such as tcsetattr. in Linux, there is an index to the list of common baud rates, and the register of the asynchronous communication chip is set with the underlying Driver Based on the config

Project design documents and code redundancy rates are low. Are there any examples? Thank you for your question. The answer must be a string of at least 10 characters! Project design documents and code redundancy rates are low. Are there any examples? Thank you. As the question. The answer must be a string of at least 10 characters! Share: ------ Solution -------------------- I have asked the software e

, the general core API with a relatively more land.The above is just a special case of "high throughput rates often accompanied by high latencies", and I am explaining this phenomenon theoretically and abstractly (not for a particular technique).A batch is made up of multiple tuples, so the processing of multiple tuple and batch batches can be represented in an abstract manner:In general, a batch processing time is longer than processing a tuple, but

, DateTime.MaxValue, Timespan.fromseconds (3600)); } else { result = Cache[cachekey]. ToString (); } Response.Write (result); Response.End (); }2, create the user control of the display data, the user control foreground code, back in the background is the entire page, the foreground through JS to take out the data they want. 3, the page needs to show, only the registered user control application can be.SummaryT

request, receives the server response, and ends the timer to calculate the elapsed and completed transactions, and at the end uses the information to estimate the score. The client uses the weighted covariance averaging method to calculate the client's score, and the test software uses this information from the client to calculate the overall TPS score on the server side using the weighted covariance averaging essentials.Generally, evaluation system performance is measured in the number of skil

request, receives the server response, and ends the timer to calculate the elapsed and completed transactions, and at the end uses the information to estimate the score. The client uses the weighted covariance averaging method to calculate the client's score, and the test software uses this information from the client to calculate the overall TPS score on the server side using the weighted covariance averaging essentials.Generally, evaluation system performance is measured in the number of skil

along the positive direction, then should increase learning rate to reach the minimum point faster, if a parameter each time the derivative of the symbol often change, Indicates that it has crossed the minimum point and is swinging near the minimum point, then the learning rate should be reduced to stabilize it.Then is the algorithm, one is the momentum method, so that the derivative of the front can affect the subsequent parameter changes, so that the parameters have been moving in one directi

Project design documents and code redundancy rates are low. Are there any examples? Thank you for your question. The answer must be a string of at least 10 characters! Shared to: the project design documentation and code redundancy rate are low. Is there an example? Thank you. As the question. The answer must be a string of at least 10 characters! Share: ------ Solution -------------------- I have asked the software engineering edition. y

Project design documents and code redundancy rates are low. Are there any examples? Thank you for your question. The answer must be a string of at least 10 characters! Share To: ------ the project design document and code redundancy rate are low. Is there an example? Thank you. As the question. The answer must be a string of at least 10 characters! Share: ------ Solution -------------------- I have asked the software engineering edition.

linear kernel function support vector machine is: 27.0063071393243 the mean absolute error of the linear kernel function support vector machine is: 3.426672916872753 The default evaluation value for the polynomial kernel function is: 0.40445405800289286 The r_squared value of the polynomial kernel function is: 0.651717097429608 the mean square error of the polynomial kernel function is: 27.0063071393243 the mean absolute error of the polynomial kernel function is: 3.426672916872753" "Machine le

(Ss_y.inverse_transform (y_test), Ss_y.inverse_transform (lr_y_predict)) $ Print("the mean square error of the linear is:", Lr_mse) -Lr_mae =Mean_absolute_error (Ss_y.inverse_transform (y_test), Ss_y.inverse_transform (lr_y_predict)) - Print("the average absolute error of the linear is:", Lr_mae) - A #evaluation of the SGD model +Sgdr_score =Sgdr.score (x_test, y_test) the Print("the default evaluation value for SGD is:", Sgdr_score) -sgdr_r_squared =R2_score (y_test, sgdr_y_predict) $ Print("

regression tree is:", Dtr.score (X_test, y_test)) - Print("the r_squared values for the flat regression tree are:", R2_score (Y_test, dtr_y_predict)) - Print("the mean square error of the regression tree is:", Mean_squared_error (Ss_y.inverse_transform (y_test), - Ss_y.inverse_transform (dtr_y_predict))) A Print("the average absolute error of the regression tree is:", Mean_absolute_error (Ss_y.inverse_transform (y_test), + Ss_y.inverse_transform (dtr_y_predict))) the - " " $ the default evalua

, in addition to my earlier complaints, it is too complicated to look at this point of view. Gruber The example of Netflix launching a streaming service, the same is digital content, also has the baggage of the real business, Netflix can come up with such a simple pricing: The U.S. 8 Yuan one months, eat enough, whatever you see, any time, any place, any number of times, all regardless of you. So easy to understand the pricing and product value, it is no wonder that the launch in just three m