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问题 I am new to Keras and CNN. I am working on an assignment to build a CNN for predicting face emotions. I built the model as per the assignment but while compiling the model I get "ValueError: Shapes (None, 1) and (None, 7) are incompatible". Can someone help me how to resolve this? Pasting my code below for reference: ''' model = Sequential() model.add(Conv2D(filters = 64, kernel_size = 5,input_shape = (48,48,1))) model.add(Conv2D(filters=64, kernel_size=5,strides=(1, 1), padding='valid'))

问题 I am using xCode 7 beta and swift, and storing my data using Parse.com. In which method in the UITableViewController should I be asking for data from my database? I need to ensure it is all present by the point in the lifecycle of the controller at which the cells need to be presented. Is there anyway to guarantee this if I am loading data asynchronously? 回答1: viewDidLoad would be a good place for this but there might be a few second difference between displaying a blank tableView and when it

问题 I am attempting to make an application that reads text messages. The application works fine, when I get a text message, the message is displayed in a toast along with the phone number. The problem is, even with the application closed, ie not in the foreground, it still shows the toast when I get a text message. I have used a task killer application, and it still shows the toast. The only way to not show the toast is to unistall the application. I am using this website as a tutorial http://www

问题 I'm trying to create a dictionary from a CSV file. The first column of the CSV file contains unique code/ keys and since the second column, there are values. Each row of the CSV file represents a unique key. I tried to use the csv.DictReader and csv.DictWriter classes, but I could only figure out how to generate a new dictionary for each row. This is a part of my code: import csv with open('input_experiment.csv', mode='r') as infile: reader = csv.reader(infile) with open('input_experiment.csv

问题 I have been trying to solve the following issue from using Paypal Adaptive API. I have integrated Paypal Adaptive chained payment API with my website. When the user clicks on the "pay with paypal" button, it takes to paypal website for payment. My issues starts from here Paypal return to my returnURL, but how do i tie the original request for payment after the return. The returnURL is a HTTP GET with no query parameters from paypal. If i want to use IPN, this wont allow me to test in local

问题 I, am using angular 5, with asp.net core 2.0. I, am trying to upload the file to the server. The code update the file to the server. But with 0 kb of data and sometime it upload the file. The file size is not large. Its in KB. Here is the Angular code public QuestionPostHttpCall(_questionPhotoVM: QuestionPhotoViewModel): Observable<GenericResponseObject<QuestionPhotoViewModel[]>> { const formData: FormData = new FormData(); formData.append('FileUpload', _questionPhotoVM.FileUpload); formData

问题 As I know Single-precision floating-point number has 1 bit for sign, 8 bits for exponent and 23 bits for mantissa. I can understand that 7 digit integers fit 23 bit mantissa and don't loose precision but can't understand how a number like 1234567000000000 fits without loose "1,2,3,4,5,6,7" digits, what is the math behind this? 回答1: The IEEE-754 basic 32-bit binary floating-point format only guarantees that six significant decimal digits will survive a round-trip conversion, not seven.

问题 Every image in my Java Swing Programs will appear in low quality as shown below: As you can see from the image, it is not just images I am having problem with, it's graphics in general displaying like this. In the right portion you can see the problem reflected to a JFreeChart Graphic. Has anyone else had this problem, is it related to the graphics card or maybe windows DPI? The same programs will render perfectly fine in other machines so I am pretty sure it is not related to the code. 回答1:

问题 Every image in my Java Swing Programs will appear in low quality as shown below: As you can see from the image, it is not just images I am having problem with, it's graphics in general displaying like this. In the right portion you can see the problem reflected to a JFreeChart Graphic. Has anyone else had this problem, is it related to the graphics card or maybe windows DPI? The same programs will render perfectly fine in other machines so I am pretty sure it is not related to the code. 回答1:

问题 I current have a folder in my firebase storage that looks like this: enter image description here I am trying to map through a cloud firestore collection and rendering a screen with list items that have the corresponding info and the image. My document field include IDs that have 0 and 1 for example so I have an easier method of finding the images that I have on firebase storage folder. This is the code I'm using to render: renderAccordion() { return this.state.accordionarr.map((item,index) =