open-mind | web application that you can use to train a machine | Machine Learning library
kandi X-RAY | open-mind Summary
kandi X-RAY | open-mind Summary
A web application that you can use to train a machine learning model and make it recognize your images.
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QUESTION
I am trying to run a script which runs Asynchronously using threadings. I have run into an issue on how to check periodically if a thread is still alive (under start_thread1). I don't want to use join() as that will freeze the GUI until the threads is finished.
If that is not possible, I am open-minded with any other ways of doing it.
Here is the code I am using - this is a part of part of the code just to outline the "issue" that I have:
...ANSWER
Answered 2021-Nov-10 at 01:46If I understand correctly, you have a tkinter program with a second thread that does some data collection, and you need to get data from that second thread back into the gui. You can't simply wait for the second thread to finish because that would block the tkinter main loop.
One solution is to create a callback function, pass it to the second thread, and call it as the very last step in the second thread. Most tkinter objects aren't threadsafe, so if you're going to update the GUI in the callback function, you have to run the callback in the main thread. To do this, base the callback on tkinter's after_idle function. This causes the callback to occur in tk's event loop, in the main thread, much like a tkinter event handler.
This program does that, and is similar to your program. I changed a few minor things to make my static type checker (pylint) happy. I don't use matplotlib so I took that code out.
The important stuff is in start_thread1. The function f is declared and passed as an argument to the thread. Note that f doesn't call processIncoming, but passes it to after_idle; that instructs the tk main loop to perform the actual call. The function that got passed to worker_thread1 is called as the last step in the thread.
The end result is that processIncoming() is fired into the main thread when the worker thread finishes.
QUESTION
I'm writing a class with a high degree of flexibility in a "schema" you can provide:
...ANSWER
Answered 2021-Jul-09 at 19:30To achive what you want you just have to include distribution over union types. While you provide [T] extends [] into conditional type the union type T doesn't get distributed. So the most simple way is just provide naked types:
QUESTION
I am trying to make a grid out of angular spirals. The spiral itself is composed of single lines within a for loop. When I duplicate and shift (translate) the origin of the spiral along one axis (x OR y) it works. But shifting along both (x AND y), in order to make it a grid, it does not work out without decomposing the spiral.
I would really appreciate if anyone could help me with my coding puzzle. By the way I'm very open-minded for any tips and help improving my code writing skills. There surely is a lot of redundancy and long-winded expressions in there... This is my code so far:
...ANSWER
Answered 2021-May-07 at 21:08If you're trying to make a grid of spirals it looks like you just need to use a pair of for loops where you currently have for (let j = 0; j < 5; j++) {. Pretty much any time you want to create a grid you're going to want a pair of nested for loops.
QUESTION
Folks, I am racking my brain with this one, I am hoping a power apps master can help. I am designing a interview questioning app. This will take 38 questions from 10 different categories, randomly select a question from each category and then randomly select 6 of those. That part is fine.
The tricky bit is that we have to have two interviewers see the same questions in the same order in the app. The current solution is Onselect at the start;
- Builds the list of questions into a temporary collection.
- Runs an if statement to see if the candidate ID has been previously assigned for the same date -If yes, pull those questions (however they are currently not in the right order and cannot get them into it) -If No, place the generated collection into a share point list for retrieval later.
The reason for the storage is to that randomisation triggers inside the app, but the second assessor, when they log in and enter the candidate ID, will have the same set of questions.
The solutions behaviour at the moment is first hit or miss, some time the collection doesn't apply, and secondly, it will not received the order id from the storage which means we can pull the questions, but they are not in the right order.
The dataset used thus are are:
A static excel list of questions indexed by a unique ID
Question_ID, the Question itself and theValuebeing testedA temporary collection
Temp_Qthat eventually becomesTemp_Q_OrderedA shareppint list
Candidate_Q_ID_Storagethat contains theCandidate_ID,Session_date,Order_IF, andQuestion_ID
This is the current code and a link to some dummy data in the same format that I am using. I am happy to give as much as I can if it will help. I am hoping it is an obivous logic problem.
...ANSWER
Answered 2021-Mar-18 at 06:34EDIT - The actual problem with your code is that ForAll in PowerApps doesn't run in a consistent order. In ForAll essentially all the rows run at once and they tend to finish in a random order. All the ways around this are pretty hacky and tend to involve timers.
The ideal solution to this problem would be if the shuffle formula had a seed input. A seed allows a random number generator to give the same results for the same input (in your case, the candidate ID.)
Unforutnately, PowerApps doesn't support seeds. However, instead you could use a very simple hash. A simple hash will give a randomish output that is always the same for a given input
Lets say you have a list of questions in a single category, and our candidate ID is 333. We could generate some ids to use as input for our hashes by adding the rownumber to the candidate id eg
Question QuestionKey 1 334 2 335 3 336You could scramble it up more by multiplying it by the candidate number, dividing it, whatever.
We could then run a simple hash formula on the QuestionKey, which would transform the QuestionKeys into different numbers in a way that is not exactly random, but good enough for our purposes
Question HashResult 1 888 2 6 3 24Then sort your table by the hash result and pick the top one. Because you are basing your numbering off the candidateID, the interviewers will always see the same list of questions, and because the hash gives somewhat randomish answers, the order will tend to be unique for each id.
A simple hash function is something like Cormen's multiplication method
HashResult = Mod(A*QuestionKey,1)*m
Where A is a number between 1 and 0 (eg 0.884) and m is a largish power of 2 (eg 8192)
Admittedly, this answer isn't quite addressing your setup, but I think it's a lot simpler and would reduce the mucking around with Sharepoint lists and trying to store values.
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