petri | Wix experiment system | Frontend Framework library
kandi X-RAY | petri Summary
kandi X-RAY | petri Summary
Wix experiment system (A/B test and feature toggle framework)
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of petri
petri Key Features
petri Examples and Code Snippets
def add_rules(self, rule_name, rule_type, actions):
'''!
Method to add a transition rule into the Petri Net.
@param rule_name string: name of the transition rule. This
name need not be unique within the model
def simulate(self, end_time, interval=1.0, report_frequency=1.0):
'''!
Method to simulate the Petri Net. This method stores the
generated report in memory; hence, not suitable for extended
simulations as it can run o
def simulate_yield(self, end_time, interval=1.0):
'''!
Method to simulate the Petri Net. This method runs as a
generator, making it suitable for extended simulation.
@param end_time integer: number of time st
Community Discussions
Trending Discussions on petri
QUESTION
For my research project I'm trying to distinguish between hydra plant (the larger amoeba looking oranges things) and their brine shrimp feed (the smaller orange specks) so that we can automate the cleaning of petri dishes using a pipetting machine. An example of a snap image from the machine of the petri dish looks like so:
I have so far applied a circle mask and an orange color space mask to create a cleaned up image so that it's mostly just the shrimp and hydra.
There is some residual light artifacts left in the filtered image, but I have to bite the cost or else I lose the resolution of the very thin hydra such as in the top left of the original image.
I was hoping to box and label the larger hydra plants but couldn't find much applicable literature for differentiating between large and small objects of similar attributes in an image, to achieve my goal.
I don't want to approach this using ML because I don't have the manpower or a large enough dataset to make a good training set, so I would truly appreciate some easier vision processing tools. I can afford to lose out on the skinny hydra, just if I can know of a simpler way to identify the more turgid, healthy hydra from the already cleaned up image that would be great.
I have seen some content about using openCV findCountours
? Am I on the right track?
Attached is the code I have so you know what datatypes I'm working with.
...ANSWER
Answered 2021-Oct-12 at 10:58You are on the right track, but I have to be honest. Without DeepLearning you will get good results but not perfect.
That's what I managed to get using contours:
Code:
QUESTION
I'm trying to list all users who have access to a specific directory and the subfolders in this directory.
I've found this website that shows me how to do this pretty well. But I want to modify this script slightly so I can exclude certain built-in Windows users from the output.
So I found another link on StackOverflow that shows how to exclude a list of users from the results. But when I add the -notmatch
to the existing PS script, the Group/User changes from the actual username to True or False for some reason.
What can I do to have this script filter out the users in the $ignore
variable and have the Group/User show the username?
ANSWER
Answered 2021-Sep-15 at 20:34You can filter at the loop level, so undesirable users aren't iterated through the loop.
QUESTION
Been trying to take a SQL query and output the perfect JSON but I'm running into issues. The query merely involves to tables, when I use "For JSON Auto" it produces a flat array of objects: enter image description here
However there is a hierarchical relationship:
Q2CNum--- LineItems---- Identifier
I've attempted to use "For JSON Path" but it only structures each json object (it won't aggregate all Identifiers under their parent LineItem for example).
I've managed to get it to look like this by joining the table to itself (same query just extra joins, the "For JSON Path Auto" seems to like this) and it looks more like this:enter image description here
Which is good. Problem is the query takes almost 20 times as long (2seconds vs 20).
Perhaps my self joins are badly written, or joining to get these results is inefficient.
Anyway if anyone has a clue how to do this let me know (can't share too much more, I'm sure you noticed the color blockout on the images).
UPDATE:
Here's pic of the query enter image description here. The problem is I get a flat JSON (just an array of object).
...ANSWER
Answered 2021-Jun-23 at 19:13I'm use "FOR JSON PATH" for List and "FOR JSON PATH, WITHOUT_ARRAY_WRAPPER" for Item
QUESTION
For the last week or so I have been struggling to find a resource that will allow me to make something like the 2D petrie polygon diagrams in this article.
My main trouble is finding out what the rules are for the edge and node connections.
I.e. in this plot, is there a simple way to make the image from scratch (even if it not fully representative of the bigger theory behind it)?
Any help is massively appreciated!
K
...ANSWER
Answered 2021-Apr-19 at 12:26Here is how I solved this problem!
QUESTION
I'm trying to script removing the modify permission of a particular folder (or file) for the "NT AUTHORITY\Authenticated Users" group, across multiple machines (actually as part of a file deployment script). I have some code that attempts to do this, but it is not working as expected.
Context:The script copies down a file structure locally, and a particular file (ideally the whole folder structure) needs to be made unmodifiable (by non-admins). Setting the read-only setting isn't sufficient, since it can be reverted by those with modify permissions to the file.
My attempt: ...ANSWER
Answered 2021-Feb-10 at 23:21Turns out my problem was that the folder was inheriting the modify permission from C:\
. Apparently modifying permissions when inheritance is enabled simply does nothing and throws no errors (>:/). The solution was to disable inheritance on the folder first (copying the existing permissions), and then the rest of the code works as expected.
In my case, simply removing all permissions for NT AUTHORITY\Authenticated Users
entirely was sufficient (and easier than performing modifications on the existing permissions), since BUILTIN\Users
still has read permissions.
QUESTION
Question: How do you associate a Network Interface Card
of an Azure Virtual Machine
to an Application Security Group?
This official tutorial from MS Azure team describes how to add the network interface
for a VM
to one of the application security groups the tutorial has created previously. According to the tutorial, in the Azure Portal
, you go to your myVmWeb VM==>SETTINGS ==> Networking
. Then, Select Configure the application security groups
as shown in image 1 below.
But when I follow these steps, I get the image 2 (shown below) that does not have the option Configure the application security groups
. Moreover, all other tutorials that I searched online (such as this and this) showing the same image 1 that MS Azure team's tutorial is showing. So, what I may be missing here or is there any other way to associate a VM's NIC to an Application Security Group?
Azure Portal: Networking blade of a VM shown in the official MS Tutorial:
Azure Portal: Networking blade of the same VM when I follow the same MS Tutorial:
...ANSWER
Answered 2020-Sep-18 at 22:23QUESTION
I need help with a code that takes a user's input of specific columns they want from a large csv file I have. After they type in themselves a column they want, they also must type an integer input. That integer input will give them that number of results of the lowest occurrences for that column. For example if they type: hospital_name, "5", it will show them 5 different hospitals(there are at least 50 different hospital names under that column) that have the lowest count tied with them. I will write an example input and output:
Type in which column you want: hospital_name Type in how many lowest results you want: 3
An output may look like:
...ANSWER
Answered 2020-Jun-08 at 23:24Code
QUESTION
I've read here that Microsoft is deprecating WMI. I need to start a project in .NET Core and query information from Windows, e.g. Win32_OperatingSystem
or Win32_LogicalDisk
.
I'v read that you should avoid Get-WmiObject
in PowerShell and use Get-CimInstance
instead. What (which Nuget/library) should be used in .Net Core now to query those kind of information?
ANSWER
Answered 2020-Mar-05 at 17:33You can use the Windows Compatibility Pack (article, nuget) for .NET Core which gives you access to a lot of Windows-only APIs but restricts your app to running only on Windows, probably not something you're worried about. This compatibility pack is also known as platform extensions. With this you would need to learn how to use the classes in the System.Management
namespace (API Ref, example code 1, example code 2). Keep exploring the API for examples.
Additionally, it looks like there is a newer cross-platform open-source system similar to CIM made by Microsoft. Though apparently not everything available in WMI is available with this, so your mileage will vary: https://www.nuget.org/packages/Microsoft.Management.Infrastructure/
Hope this helps.
QUESTION
I made a little diagnostic script that I keep in my $profile
. In collecting the CPU name I found that the command takes about 4 seconds (Get-WmiObject -Class Win32_Processor).Name
. So I thought I'd try PowerShell Jobs and while I think they will be really good for long background jobs, if you just want to quickly grab a small piece of information in the background, the initialisation times are awkward (like 2-3 sec per job) so I thought I'd use Start-Process to dump values in temp files while the rest of my script runs. I think I'm doing this correctly, but if you run this function 3 or 4 times, you'll notice that CPU name is not populated.
• Is using Start-Process like this optimal, or does anyone have a quicker way to just start small jobs in the background in parallel? I know there is a .NET way of doing this (but it seems super-complex from what I've seen)?
• Do you know why my "wait for file to be created and be non-zero before accessing it" is failing so regularly?
...ANSWER
Answered 2020-Feb-17 at 23:28To run jobs in background in powershell, there are these 3 ways to go about it
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