flatted | A fast and minimal circular JSON parser | JSON Processing library
kandi X-RAY | flatted Summary
kandi X-RAY | flatted Summary
A fast and minimal circular JSON parser.
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- Replace a value with a replacement .
- returns the value of a variable
- return the value of a function
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QUESTION
For my university project, I was asked to analyse, discuss and improve the existing implementation of image face recognition.
As an input data, I got n*m matrix where:
- 'n' is a number of images, in my case, 1500.
- 'm' is a flatted (vectorised) pixel matrix, so just a one-dimensional array. It was converted from a 77*78 matrix to one 5236 elements long list of grayscale values (0-255).
It looks like:
...ANSWER
Answered 2022-Mar-06 at 14:18However, on the internet, I've seen only examples with decreasing nm matrixes dimension to (for example) n1. I don't know if applying this algorithm to just a one-dimensional array is a good approach, I haven't found any example of that.
You are not applying PCA to one dimensional array. You are applying it to 2D matrix, 1500 x 5236 and reduce it to 1500 x 200; this is exactly what you see online -> 2D matrix reduced to smaller feature space. Tutorials online will often do so in an extreme fashion (e.g. to 1500 x 2) because one of the main uses of PCA is data visualisation and plotting anything beyond 2dims is ... hard ;)
Should I instead reshape each image back into the matrix, and then apply PCA on it?
No, there seems to be a confusion to what the matrix is. Your entire data is the matrix, if you were to have pictures you would end up with 3d tensor, not a matrix. PCA, as traditionally defined, cannot be applied to anything but a 2D matrix.
Or just left it as it is? Is it a good approach at all? Maybe there are some alternatives for PCA in my case?
PCA is just a heuristic regularisation technique. You are removing information from your data, to avoid overfitting. There is absolutely no guarantee it will work or help. And there are many many other regularisation techniques one can try:
- regularisation losses, e.g. weight decay
- regularistaion in network itself, e.g. dropout
- regularisation in the data itself, e.g. "data augmentation" (training on slight transformations of your pictures that does not affect the final label, e.g. rotations etc.)
- regularisation in the way loss is specified, e.g. through soft labels or mixup.
QUESTION
npm install
in the relevant react project folder, it gives back this error after installing node modules
...ANSWER
Answered 2021-Dec-07 at 06:54I had the same problem with literally the exact same number of vulnerabilities.
Check out the solution here
QUESTION
I want to use this react-file-viewer but I can't get it running. When I do npm install
I get massive error. I'm new to this.
My Node version is v16.9.1
This project is old and created for an older Node version I think so it's so many errors I don't know where to begin. Do you think it can work if I update all package.json dependencies to the newest version?
...ANSWER
Answered 2021-Dec-25 at 08:52The error happened when running node-gyp
during installation of node-sass
as you can see in the error. Also mentioned in the error log, you most likely do not have Python installed.
Try running node-gyp rebuild
.
If that fails, it means it is not setup correctly. Follow node-gyp
documentation to setup your environment correctly, then re-run npm install
.
Also, take a look at node-sass
supported Node version.
QUESTION
I have some data in a non desirable format and I would like to flatten it.
Data:
...ANSWER
Answered 2021-Dec-19 at 19:24You can use Array.reduce
.
In the reducer function, check whether the accumulator contains an item with the same team
property. If so, increment its's count
property and push the current item's name
property to it's name
property.
QUESTION
I need to reserialize an object from a WebWorker sharing the same definitions.
Upon reception of the message, I'm losing all the prototype functions.
Doing
...ANSWER
Answered 2021-Nov-27 at 13:51This is a classical problem with tying the knot on a circular structure. When deserialising, the flatted library has to start somewhere, passing in the original not-yet-revived object as the argument. It could in theory pass a proxy (or an object with getters) that parse the involved objects on-demand in the right order, but if all objects in the circle need to be revived this would lead to a stack overflow, as JS doesn't use lazy evaluation where you can reference the result of a call before having evaluated it.
A pure approach would actually need a reviver function that does support such a lazy approach, not accessing the object passed to it until after the deserialisation has finished:
QUESTION
I'm facing an issue when I try to install the npm on my node project. I tried to clean the npm cache and downgraded the node also but error is not fixed.
...ANSWER
Answered 2021-Sep-30 at 18:36I solved the problem by running this command:
QUESTION
I have a dataframe like this
...ANSWER
Answered 2021-Sep-28 at 21:10You can try this:
QUESTION
I am attempting to add an additional functionality to the Divi WordPress theme. To do this, I am trying to build an extension to the theme and then a custom module within the extension. Elegant Themes, the developer of Divi, provides a tutorial for creating an extension and also for creating a module within the extension.
My development PC is running XAMPP over Ubuntu 20.04. I followed the tutorials and installed WordPress + Divi. I then installed Node.js by running sudo apt install node
and then installed npm by running sudo apt install npm
. Next, I ran sudo npm install -g yarn
to install Yarn.
The next step called for me to navigate to the plugins folder (/opt/lampp/htdocs/development/wp-content/plugins
) of my WordPress site and run npx create-divi-extension development-1
.
When I attempted to run this command, I received the following response:
...ANSWER
Answered 2021-Aug-20 at 11:46The issue was a result of not using the correct version of Node and not having the divi-scripts
package installed. The fix was simple really.
Step 1: In my home directory, I ran sudo n stable
and this updated Node to the latest LTS version.
Step 2: While still in my home directory, I ran npm install divi-scripts
. There were still some errors about deprecated dependencies (see here) but it worked.
Step 3: Navigated to my project folder and ran npx create-divi-extension development-1
and it ran successfully, but still with errors about deprecated dependencies for divi-scripts
.
QUESTION
I have a Json array with key value pairs like below
...ANSWER
Answered 2021-Aug-10 at 13:35You can either use @AnuragDabas’ solution from the comments, combined with .rename_axis()
to remove the index names:
QUESTION
I am new on deep learning. To practicing I trained a simple Handwriting model with tensor-flow and mnist. After loading mnist I made model and trained that:
...ANSWER
Answered 2021-Jan-19 at 18:34I finally fix my problem.
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