XOR | Google Tensorflow implementation of three layer Neural | Machine Learning library
kandi X-RAY | XOR Summary
kandi X-RAY | XOR Summary
The code represents a three layer neural network with a configurable number of nodes. In the input layer we have 2 inputs, one for each of the input bits and the hidden layer is configurable to almost any size with the parameter: N_HIDDEN_NODES. There are two activation functions that can be chosen from. The softmax which output values in the range 0 to 1 and the tanh function which returns values between -1 and 1. To avoid the use of additional bias nodes, we code the inputs as follows: AX+b, where A is the weight matrix goverining the strength of the neural network connections, X are in the inputs and b is the bias. Bias inputs are handled by Tensorflow in this way as a variable, rather than having to define additional nodes. XOR may seem like a simple operation to learn, but its history is rich. In fact the pre-cursor to the neural network, the perceptron was not able to learn this pattern and it has been argued that Artificial Intelligence research was pushed back. See more about the perceptron at
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Top functions reviewed by kandi - BETA
- Generate random bits .
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Trending Discussions on XOR
QUESTION
I ran into less than ideal inlining behavior of the .NET JIT compiler. The following code is stripped of its context, but it demonstrates the problem:
...ANSWER
Answered 2021-Jun-15 at 19:35The functions Hash_Inline and Hash_FunctionCall are not equivalent:
- The first statement in
Hash_Inlinerotates by 1, but inHash_FunctionCallit rotates bycurIndex. - For
RotateLeftyou may have probably meant:
QUESTION
I am new to SwiftUI (iOS App Ver 14.x) as I normally use Xamarin.
In this case I need to have the application specifically written in SwiftUI. (I am aware that some stuff still needs UIKit).
I have got my head around it though I am generally speaking struggling to get to grips with where and how to store stuff.
For example (greatly simplified) let us say I want the following:
All in the same view.
Two form fields:
First Name: … Last Name: …
A Button that says, “Add Photo”.
A Button that says, “Save Locally” (N/a but just for info, to be later uploaded to a web service that isn't always available at some point).
Now doing all the standard stuff this is pretty straight forward.
BUT.
I want to encrypt the form input (once converted to JSON, note I can convert to JSON easy enough).
I also want to encrypt the image before it is stored. (the real app has more than one image).
The stuff will be encrypted in the real app using asymmetric encryption (which I understand well, again this is not so relevant here).
But for the sake of example, I am happy to just ‘encrypt’ the JSON and picture as two separate files using something simple just to show the idea. XOR it or something simple to show.
My question is where is the best places code wise to do this with some basic examples if possible. I know this is a little subjective but just something simple and obvious. Click button, run this func, do this type of thing etc.
Where do I store stuff (which I am finding a bit all over the place)? This is my main source of confusion being honest.
My understanding is that you would use a FileManager object and the documents directory (though I am not sure if this is best practice, or even the right place.
The requirement from a client is that nothing is stored unencrypted for compliance reasons (completely ignoring anything Apple have in place good or bad).
...ANSWER
Answered 2021-Jun-14 at 06:58Yes you can just store it in the documents folder by using file manager:
FileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)[0]
As for encryption, if you encrypt the data before writing them to disk then they are encrypted...
One issue is that the encryption key has to be stored securely as well. For this, I usually generate the key when it is first used and store in keychain. Hard-coding the key in the code is not as secure because it makes the key identical for all users, and the binary can (not sure how easy) be reverse-engineered. We have to trust Apple's keychain to be secure. Some checks for jailbreaking may also help hear.
Also note that unlike other app data (UserDefaults, files etc), keychain is NOT cleared when the app is reinstalled!!! This can be a major source of headache. If desired, you can work around this by running a a chunk of code to clear the keychain when the app runs the first time after installation (by keeping a flag in UserDefaults, for example, which is cleared when app is reinstalled).
QUESTION
I am creating my first x86 assembly program. I am using VS Code as my editor and using Insight as my debugger coupled with DOSBox as my emulator.
As a start I have created a .asm program to change to colour of the screen:
ANSWER
Answered 2021-Jun-14 at 05:29While DOSBox emulates a 32-bit CPU, DOS itself runs in 16-bit real mode, without tools like DOS4gw, used in some DOS Games, such as Doom.
I think the -f win32 command line option is to blame for this error.
QUESTION
I have written the following assembly code.
It's displaying the output of writeint as +0
But When I put the debug point on the line before writeint and look at the registers
I see EAX=0000BFBE. As per my understanding writeint should print the value of EAX
register. What could be the reason that it's showing +0?
ANSWER
Answered 2021-Jun-11 at 09:34By putting the breakpoint on the line before, I assume you mean that you put the breakpoint here:
QUESTION
I have to prints random values in graphic mode in assembly language 8086. My random procedure works fine in simple mode but in graphic mode it prints garbage values? draw1 macro is used to prints digits or any character on screen in Graphic mode it also works fine. The only issue is in random procedure. It print correct values in simple mode but prints garbage values in Graphic mode.
...ANSWER
Answered 2021-Jun-09 at 20:48QUESTION
I have to develop class StackMachine[T]. If T = Boolean, then there should be logical operations. If T = Int,Double,Long and etc. there should be ariphmetic operations. Firstly i developed class Stack[T].
...ANSWER
Answered 2021-Jun-08 at 18:36Then yeah it seems the project is intended to be solved using a typeclass.
For example, see this small one for Boolean-like and:
QUESTION
suppose i have a list of lists [[1,2,3],[1,2,3,4]]
how can I find the xor of all the list of list elements,
since the xor of [1^2^3] is 0, xor of [1^2^3^4] is 4 so the resultant list will be
ANSWER
Answered 2021-Jun-07 at 13:21You can use list comprehension with functools.reduce and operator.xor.
QUESTION
This seems like it should be the simplest thing in the world, and there is also some questions regarding it on here, but none of them seem to work. In a lot of cases/answers, arguments aren't properly filled in, or answers just straight up don't work.
I have this super simple code, Where I take two chars, get their hex-values, and convert them to ints. I then xor them, and convert the result to a hex. Now I just want to convert this output to a char again. This for some reason, is not a simple task:
...ANSWER
Answered 2021-Jun-06 at 19:44Try using chr(heks). That usually converts ASCII indices to their corresponding characters.
At least according to your MRE, you don't actually need the hex of h ^ h1, so you can just call char = chr(h ^ h1).
EDIT:
If you have two input strings and you need to xor them together, just do
QUESTION
ANSWER
Answered 2021-Jan-25 at 22:57When an .EXE program starts in the DOS environment, the DS segment register points at the ProgramSegmentPrefix PSP. That's what we see in the included screenshot.
ASSUME DS:DATA is merily an indication for the assembler so it can verify the addressability of data items. To actually make DS point to your DATA SEGMENT, you need code like mov ax, @DATA mov ds, ax. Put it where your code begins its execution.
QUESTION
Hash Functions are incredibly useful and versatile. In general, they are used to map a space to one much smaller space. Of course that means that two objects may hash to the same value (collision), but this is because you are reducing the space (pigeonhole principle). The efficiency of the function largely depends on the size of the hash space.
It comes as a surprise then that a lot of Java hashCode functions are using multiplication to produce the hash code of a new object as e.g. follows (creating-a-hashcode-method-java)
...ANSWER
Answered 2021-Jun-04 at 11:47The answer to this is a mixture of different factors:
- On modern architecture, the time taken to perform a multiplication versus a shift may not end up being measurable overall within a given pipeline of instructions-- it has more to do with the availability of the relevant execution unit on the CPU than the "raw" time taken;
- In practice when integrating with standard collections libraries in day-to-day programming, it's often more important that a hash function is correct, "good enough" and easy to automate in an IDE than for it to be as perfect as possible;
- The collections libraries generally add secondary hash functions and potentially other techniques behind the scenes to overcome some of the weaknesses of what would otherwise be a poor hash function;
- With resizable collections, an effective hash function has the goal of dispersing its hashes across the available range for arbitrary sizes of hash tables (though as I say, it will get help from the built-in secondary function): multiplying by a "magic" constant is often a cheap way to achieve this (or, even if multiplication turned out to be a bit more expensive than a shift: still cheap enough, given the benefit); addition rather than XOR may help to allow this 'avalanche' effect slightly. (In most practical cases, you will probably find that they work equally well.)
- You can generally assume that the JIT compiler "knows" about equivalents such as shifting 5 places and subtracting 1 rather than multiplying by 31. Just because you write "*31" in the source code doesn't mean that it will literally be compiled to a multiplication instruction. (In practice, it might be, though, because despite what you think, the multiply instruction may well be "faster" on average on the architecture in question... It's usually better to make your code stick to the required logic and let the JIT compiler handle the low level optimisations in a case such as this.)
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Install XOR
You can use XOR like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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