backprop | Backprop makes it simple to use , finetune , and deploy state | Natural Language Processing library
kandi X-RAY | backprop Summary
kandi X-RAY | backprop Summary
Backprop makes it simple to use, finetune, and deploy state-of-the-art ML models. Solve a variety of tasks with pre-trained models or finetune them in one line for your own tasks.
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Top functions reviewed by kandi - BETA
- Load a trained model
- Download a file
- Resize an image
- Builds the model from the given state dictionary
- Finetuning optimizer
- Setup pre - trained model
- Upload a model to the model
- Save a model to disk
- Finetune the model
- Set the model to the given device
- Performs a single training step
- Perform validation step
- Process a single batch
- Step single label
- Step through the triplet
- Performs a single step of training step
- Performs a single step
- Compute the logits for the given image and text
- Calculate cosine similarity
- Forward forward computation
- Forward attention
- Create a pretrained model from a pretrained model
- Finetuning
- Fills training and validation
- Fetches training and validation
- Perform cosine similarity
backprop Key Features
backprop Examples and Code Snippets
def AddForwardAccumulator(self, value, dead_branch=False):
"""Add an accumulator for each forward tensor that is needed in backprop.
This is added to the forward loop at the first time when a tensor
in the forward loop is used by backpro
def AddBackpropAccumulator(self, op, grad):
"""Add an accumulation loop for every loop invariant.
This is added to the backprop loop. It is used to accumulate partial
gradients within each loop iteration. Called when in the gradient whil
def AddBackpropLoopCounter(self, count, outer_grad_state):
"""Add the backprop loop that controls the iterations.
This is added to the backprop loop. It is used to control the loop
termination of the backprop loop. Called in the outer co
Community Discussions
Trending Discussions on backprop
QUESTION
I have 5 sheets in excel with different parameters.
history
ANSWER
Answered 2021-Jun-02 at 20:24If idx
is the index of your dataframes:
QUESTION
My network is not trained to recognize inputs separately, it either outputs the averaged result or becomes biased to one particular output. What am I doing wrong?
...ANSWER
Answered 2021-May-30 at 08:52The matrix math of backpropagation is quite tough. It is especially confusing that the length of the lists of weight matrices and deltas (actually the list of bias arrays too) should be one less than the amount of layers in a network which makes indexing confusing. Apparently, the problem was due to misindexing. Finally it works!
QUESTION
I have a pytorch model I'm trying to use to do facial recognition. I am using the same model structure, loss, and optimizer as a working code, but it seems like the backprop won't do anything, any output of the NN is just 0.5. Here is the code, any help/suggestions is/are appreciated.
...ANSWER
Answered 2021-May-21 at 22:38You applied both relu
and sigmoid
to your final output. In this case, you want to apply only sigmoid
.
QUESTION
I have two tensors:
...ANSWER
Answered 2021-May-08 at 15:51You can sum multiplicative masks of the conditions:
QUESTION
I recently coded a neural network based on this online book and Sebastian Lague's brief series on neural networks on youtube. I coded it as faithfully to the original as possible but it didn't end up working. I am trying to solve a simple XOR problem with it but it always seems to give me random but similar values. I even tried copying and pasting the author's code, without changing anything, but it still didn't work.
...ANSWER
Answered 2021-Apr-17 at 18:12I seem to have fixed it. I made three main changes:
I switched the a and o in the output layer error calculation which then looked like this:
error = (o - a) * self.activationPrime( self.zCollection[-1] )
.When updating the weights and biases I replaced
QUESTION
I am trying to implement the code from a Pytorch beginner's tutorial. But I have written the code for loading the saved model in another Python file.
The FashionClassify
file contains the code exactly as its in the tutorial.
Below is the code:
...ANSWER
Answered 2021-Apr-13 at 22:01That's what happens when you import another file. All the code gets rerun.
Instead, in your training file:
QUESTION
I am working on 3D point clouds. I have the SPARSE MATRIX representation of the graph structure of the point cloud (like csr_matrix in scipy.sparse). I want to club together the points that are within certain threshold of the Geodesic distance (approximated by the path length in the graph) and process them together. TO FIND such points, I need to run some shortest path finding algorithm like Dijkstra's. In a nutshell, my idea is like this
- Sample K points out of N points (that I could do using Furthest Point Sampling)
- Find the nearest Geodesic neighbours (using BackProp supported algorithm) for each of K points
- Process the neighbours for each point using some Neural Network
This will go in my forward function. Is there a way to implement Dijkstra’s in my functionality?
Or any other idea that I can implement?
Thank you very much!
...ANSWER
Answered 2021-Apr-13 at 16:15I created my custom implementation for Dijkstra using priority queues as discussed here
For the same, I created a custom PriorityQ
class using torch function as below
QUESTION
I have attempted to solve this error but it has been to no avail. My CNN model is below:
The shape of X_train and X_test are: X_train shape: torch.Size([12271, 3, 100, 100]) | X_test shape: torch.Size([3068, 3, 100, 100])
...ANSWER
Answered 2021-Apr-13 at 04:50Your final convolution's (conv3) output dimensions don't match the input dimension of first Linear layer. self.conv3's output shape will be BatchSize x 128 x 12 x 12 when resized:
QUESTION
I have two tensors of shape [B, 3 , 240, 320] where B represents the batch size 3 represents the channels, 240 the height(H), 320 the width(W).
I need to find the dot product along the channels dimension(3 channels) thus the resulting tensor would be of shape [B, 1 , 240, 320]. My tensors have float32 elements in gpu(cuda to backprop).
Can you all please suggest how I can do that?
Thanks!
More clarification:
Let's say we have B=10, H=100, W=200. So from the above would be common for both the first and seconds tensors. If we keep B, H, W constant we get a 1D vector as the resultant tensor(with 3 elements). I need to take the dot product of these two vectors. Thus the resultant tensor is of dimension [B, 1, 240, 320]
...ANSWER
Answered 2021-Mar-17 at 00:02Dot product is the summation of multiplication of values in two vectors:
So I am guessing you want to multiply all values along the channel dimension and need to find the summation of the result, please correct me if my understanding is wrong.
QUESTION
After a full week of print statements, dimensional analysis, refactoring, and talking through the code out loud, I can say I'm completely stuck.
The gradients my cost function produces are too far from those produced by finite differences.
I have confirmed my cost function produces correct costs for regularized inputs and not. Here's the cost function:
...ANSWER
Answered 2021-Feb-28 at 14:19One thought: I think your perturbation is a little large, being 1e-4
. For double precision floating point numbers, it should be more like 1e-8
, i.e., the root of the machine precision (or are you working with single precision?!).
That being said, finite differences can be very bad approximations to true derivatives. Specifically, floating point computations in numpy are not deterministic, as you seem to have found out. The noise in evaluations can cancel out many significant digits under some circumstances. What values are you seeing and what are you expecting?
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