reality | Comprehensive data proxy to knowledge about real world | REST library

I am using this template in my overleaf Report:

https://www.overleaf.com/project/60c75f5e234ec24080f0ea6a

If link is not accesible here is the code:

Say I have the following: test_labels=np.array([0,1,1,3,2]) and preds=np.array([0,2,3,3,2]) -- the output should then be output_fractions_correct=np.array([1.0, 0.0, 0.5, 0.5]), i.e., a summery of the accuracy of each class. How can I compute the number(fraction) of correctly classified example for a class and do this for each class? I would like to give you an example of what I have tried but trust me that wouldn't help. Thanks.

I think I can get it to work with for loops but there must be some wizard way with Numpy.

To elaborate: The accuracy of a class(the value of the array elements) is given by the number of indicies for which test_labels[i]=preds[i] divided by the number of occurences of class i in preds. This is for example why class 3 has an accuracy of 2/1=0.5. I am aware that in reality one would consider occurences in test_labels but that doesn't matter here :)

Ok, a rather specific question which requires additional explanation and context.

Context

We are POCing a "try-convert" from a bespoke language to .net core (5 currently) and blazor server. Server because it allows a try-convert scaffolding we can build security concerns round. The details of this are not important. It just explains why we have some constraints which may seem unrealistic under normal circumstances.

I am fully accepting that "no you can't" or even "no you shouldn't" is the likely outcome. We are exploring possibilities.

Question

The concept of a circuit in blazor is a really good fit for the presentation layer. We would like to store information at the scope of the circuit.

The obvious solution is to use a scoped service in the dependency injection container.

E.g. In my Startup.cs I can put

I had an issue where adding an extra pipe to subscription to a BehaviorSubject was making the wrong behavior in some tests. Whenever I did const stores = await lastValueFrom(workingStore$); in RXJS 7 or const stores = await workingStore$.toPromise(); in RXJS 6, the value was not what I expected. I reduced the code down to this fiddle: https://jsfiddle.net/Dave_Stein/v7aj6bwy/

You can see on the run without a concatMap, getValue gives 3 values in an array. With concatMap, it will only return the first value.

The same can be observed when I use toPromise in this way:

cppreference states the following on thread_local variables

The storage for the object is allocated when the thread begins and deallocated when the thread ends. Each thread has its own instance of the object. Only objects declared thread_local have this storage duration.

I think of using a thread_local static member variable declared inside a shared library that is loaded at runtime via dlopen / LoadLibrary. Since it's totally possible that there are already quite a few threads running at the timepoint this library is loaded and some of them will then access that variable later, I wonder how this works if the storage is allocated when the thread begins? If the variable does not exist in the program at the timepoint the thread is created this obviously cannot work as explained there. Furthermore it seems like a waste of resources if a process running e.g. 100 threads would create an instance of that thread local variable for each of those threads if only a few of them would actually access the variable.

So, is the documentation incorrect here or are there chances that what I'm trying here might lead to undefined behavior? If the documentation is simply incorrect, where can I find a reliable description of what can be expected in reality? In case it's implementation defined, I'm particularly interested how clang handles it on macOS and Windows.

I'm new in hololens 2 developing and trying to use Holographic Remoting.

Unity 2019 LTS MRTK 2.5.3 Unreal 4.26 Hololens 2 Win 10 VS 2019

1. In Unity : I follow a popular tutorial,

On HoloLens, go to the Microsoft Store and install the Holographic Remoting Player application. On HoloLens, start the Holographic Remoting Player application. In Unity, click the "Windows" menu and select "XR->Holographic Emulation". Set the simulation mode to the remote device. For remote computers, please enter the IP address of HOLOLENS. Click "Connect". You should see the connection status change to "Connected", and you should see the screen appear blank in HoloLens. Click the "Play" button to start the play mode and experience the application on HoloLens.

What I met: Setting in Unity Setting in Unity

When I start to "Connect", Error there: Disconnected with error TransportConnectionFailed UnityEditor.EditorApplication:Internal_CallUpdateFunctions()

1. In Unreal I follow: https://docs.unrealengine.com/zh-CN/SharingAndReleasing/XRDevelopment/AR/HoloLens/QuickStartStreaming/index.html https://docs.microsoft.com/zh-cn/windows/mixed-reality/develop/unreal/tutorials/unreal-uxt-ch6

Setting in Unreal Setting in Unreal Similiar error: LogTemp: Editor connecting to remote HoloLens2: 192.168.19.57 LogWmrHmd: WMRInterop: ConnectToRemoteHoloLens trying to connect to HoloLens2 192.168.19.57 LogWmrHmd: WMRInterop: RemotingDisconnectedEvent: Reason: 12 TransportConnectionFailed LogHoloLensAR: Warning: HoloLens AR session disconnected from peer

I can connect the device in device portal, and in the Unreal device manager I can also connect my hololens. device portal Unreal device manager

Anyone meet this problem?

I'm trying to read a vector in the reverse order using a ranges::subrange view but I'm confused about how it should work. I'm aware of ranges::reverse but I'm trying to avoid using this method as a personal preference and learning experience.

My non-working example code is here:

I'm trying to deploy an application I built in Unity to the HoloLens 2 by following this tutorial.

Here are the build settings I entered in Unity.

When I go to deploy the application by selecting "Master", "ARM64", "Device" and then "Start without debugging" in Visual Studio I get this error "There were deployment errors. Continue?". If I select yes then I get the below error:

So i have a big csv where i query data, my idea is to use as for loop and write all selected columns to one excel. ATM i get the right column headers but only the first value to it, what am i doing wrong?

Here's my Code: