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Recently started to learn Swift to develop mobile programs. Follow Stanford's Open class for self-study.This is a wonderful time, although not at Stanford School, but can watch the recorded video, lectures, as if the teacher is giving us a lesson!Experience:1, each lesson information is very large, each word, each operation is intentional and for it. Need to have a good experience after class, according to the knowledge points in the class to practice

image? We have a uiimageview that shows pictures, but you may want to throw your pictures into the drawrect.In general you will create a picture with a name in order to get it out of the images.xcassets.Once you have this picture, you can send a message to show it, this method is Drawatpoint, then the system will put the normal size of the picture in the upper left corner of the point.You can also use the Drawinrect method, which will scale the image in this rectangular area.Or, as we said befo

{ faceview.datasource = self } }The other thing to do is to let Faceview redraw itself every time our model changes. We need to complete UpdateUI this method:Func UpdateUI () { faceview.setneedsdisplay () }The meaning here is to call my drawrect function and redraw me. If you do not do this step then modify the value of the happiness the face of the little man will not change. Let's change the value of happiness to 75 to run a look at the effect:A very cute smiley face. "W

two constraints, a horizontal center, and a bottom distance:We create a third button in the same way:Let's Run our program:You can see that the top text is cut off and rotated:It looks good in the horizontal screen mode, but the vertical screen is not going to work. Since we have set the font size to 36th, you can see it in the autoshrink of the storyboard property monitor, the current setting is fixedFont size (fixed font size):But this font does not need a fixed size, I need to set its minimu

Stanford iOS Learn Notes, stanfordios During this time, I was studying Stanford's iOS 8 teaching video, so I was not thinking about it, so I was prepared to summarize some notes about the video learning so that I could understand it more easily. Now I have learned six lessons. From these six lessons, the first three lessons mainly focus on a Demo of Calculator and interspersed with a few iOS introductions, and MVC introduction. Section 4 mainly intr

) Methodtoinvokeifsomethinghappensname: (NSString*) name//Name of station (a constant somewhere)Object:(ID) sender;//whose changes you ' re instertsted in (Nil is anyone ' s)//you 'll then being notified when there is broadcasts-(void) Methodtoinvokeifsomethinghappens: (Nsnotification *) notification{Notification.name//The name passed aboveNotification.Object //The object sending you the notificationNotification.userinfo//notification-specific Information about what happened} 10.Be sure to ' tun

it via the Uitableviewcontroller @property (strong) Uirefreshcontrol *refreshcontrol; Start it with...-(void) beginrefreshing;Stop it with...-(void) endrefreshing; 11.What If your Model changes?-(void) reloaddata;Causes the table view to call Numberofsectionsintableview:and Numberofrowsinsection:all over again and then Cellforrowat Indexpath:on each visible cell. Relatively heavyweight,but if your entire data structure Changes,that ' s what you need. If only part of your Model Changes,there is

two classification problem, so the model is modeled as Bernoulli distributionIn the case of a given Y, naive Bayes assumes that each word appears to be independent of each other, and that each word appears to be a two classification problem, that is, it is also modeled as a Bernoulli distribution.In the GDA model, it is assumed that we are still dealing with a two classification problem, and that the models are still modeled as Bernoulli distributions.In the case of a given y, the value of x is

)) { Cgpoint translation = [gesture translationinview:self.faceview];//conversion to point displacement changes in the coordinate system self.happiness-= TRANSLATION.Y/2; In addition to the effect of 2. Decrease the amplitude of the change [gesture Settranslation:cgpointzero inview:self.faceview];//0 to make the range of changes not additive }}Next, implement the functions defined in the Protocol,-(float) Smileforfaceview: (Faceview *) sender{ return (self.happiness

. The data source does not deal with such things as would and should, he answers how many songs there are and returns the quantity to the view. The view now opens up space for these 10,000 songs. So the function of the controller (C) is to interpret and format the data provided by these models (M) for the View (V).So the question comes again, can the model communicate with the controller? Obviously not. But suppose the data changes how to notify our controllers? It still uses this method of blin

default is to use a hidden layer is a reasonable choice, but if you want to choose the most appropriate layer of hidden layer, you can also try to split the data into training sets, validation sets and test sets, and then try to use a hidden layer of neural network to train the model. Then try two, three hidden layers, and so on. Then see which neural network behaves best on the cross-validation set. That means you get three neural network models, one, two, and three hidden layers, respectively

are as follows:Lambda Train error Validation error 0.000000 0.173616 22.066602 0.001000 0.156653 18.597638 0.003000 0.190298 19.981503 0.010000 0.221975 16.969087 0.030000 0.281852 12.829003 0.100000 0.459318 7.587013 0.300000 0.921760 1.000000 2.076188 4.260625 3.000000 4.901351 3.822907 10.000000 16.092213 9.945508 Training errors, cross-validation errors, and relationships between lambda graphs are represented as follows:When th

unreasonable. That is, in the past two months the word has not appeared in the mail, it is considered that the probability of 0, unreasonable.Generally speaking, it is unreasonable to think that these events will not happen if they have not been seen before . Solve this problem with Laplace smoothing.4. Laplace SmoothingAccording to the maximum likelihood estimate, p (y=1) = # "1" s/(# "0" s + # "1" s), that is, the probability of Y being 1 is the ratio of the number of 1 in the sample to all s

Model,view no model-oriented broadcasts, and the view and controller will broadcast to each other.The model broadcast is very useful because it is not visible, but there are restrictions that can only notify the object that is allowed to notify what happened.(7) 1 model only 1 controllers.Can a controller have a view conversation with someone else? Normally the controller will have a pointer pointing to another controller as the view, which will require the controller to display the object. So,

In the project, C # is used to annotate the English sentences, and the more mature English pos tagging software is stanford-parser. It's a C # version, and it's done with the IKVM java-c# conversion. The specific configuration steps are as follows:1. Download Stanford-parser jar PackageHttp://nlp.stanford.edu/software/lex-parser.shtml2, download the C # version of the projectHttps://github.com/sergey-tihon/

Here is the steps to enable a custom theme using the manual method described here:Https://github.com/edx/edx-platform/wiki/Stanford-ThemingFirst create the base VM:mkdir fullstackcd fullstackcurl -L https://raw.githubusercontent.com/edx/configuration/master/vagrant/release/fullstack/Vagrantfile > Vagrantfilevagrant plugin install vagrant-hostsupdaterexport OPENEDX_RELEASE="named-release/birch"vagrant upThis might take awhile as the virtual box is down

Document directory Variable Method Parameter Iteration Code programming code I felt like I had a brand new understanding of computer programming when I read Stanford's programming methods. How can I say that I have been reading books or teachers in China for a long time, the things I talk about are not really programs that programmers understand. Of course, I do not deny that there must be good lecturers (teachers ). Stanford saw that, althou

Because the older version of Stanford parser is used in Twitter NLP, it cannot be used simultaneouslyThe workaround is to use Twitter NLP, which is not integrated with other jar packages, which is also explained in this Stanford FAQ (in FAQ17), and gives a list of which jar packages are used in Twitter NLPMost of the jar packages can be downloaded toBut some are not used for version reasons like Twitter-tex

http://52opencourse.com/111/Stanford University--language model (language-modeling)--Class IV of natural language processingI. Introduction of the CourseStanford University launched an online natural language processing course in Coursera in March 2012, taught by the NLP field Daniel Dan Jurafsky and Chirs Manning:https://class.coursera.org/nlp/The following is the course of the study notes, to the main course ppt/pdf, supplemented by other reference

Tag:iosswift Stanford Open Class tableviewdelegate The previous remark introduced TableView's DataSource, which introduces another important part of delegate.When we click on a cell, how do we jump to another MVC?Like adding other segue, click the cell Control key, right-connect to another MVC, then let go, select the desired segue type.If you have other buttons on your cell, such as detail disclosure, you can also select its segue:Then set your segu