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Optimizing execution speed of a series of deep neural networks



2019 Community Moderator ElectionDebugging Neural NetworksDenormalise data in Neural NetworksMNIST Deep Neural Network using TensorFlowNeural networks - Find most similar imagesRegression with Neural Networks in Tensorflow problemHow to use a different model to deep neural network with reinforcement learning based on DQN?Combining 2 Neural NetworksAre there real world applications where deep fully connected networks are better suited than ConvNetsNeural Networks - Back PropogationConvolution Neural Networks on microcontrollers










1












$begingroup$


I have a series of Neural Networks that I run on some video data. First network detects bounding boxes, then it extracts features for object tracking, matching each box to an id frame by frame and finally some other CNN is applied to all "boxes" extracted.



Naturally this is very slow and I understand that this is just so much you could do, but I wonder if there's a way to optimise this for speed?



Some suggestions I've heard is to concatenate my networks. I've used Thread class with Queue with some effect but want to try something a bit more radical










share|improve this question











$endgroup$











  • $begingroup$
    They are serial operations which are dependent on each other. One solution can be using lighter versions of the current models.
    $endgroup$
    – Media
    Mar 26 at 16:48










  • $begingroup$
    Probably a stupid question, but is there actually a way to "thin" them down, I can't really sacrifice a lot of accuracy and it seems that at least for bounding box detection yolov3 is as accurate as ssd but 3x faster so not sure I could find anything much faster. I only need 1 class (person) so perhaps there's a way to strip out other labels, that would only change the last dense layer which I assume won't speed up the network much
    $endgroup$
    – Edouardos Kim
    Mar 26 at 17:30










  • $begingroup$
    Yes, you can use transfer learning. But you have to train your network but not from scratch. It will thin your model!
    $endgroup$
    – Media
    Mar 26 at 17:32
















1












$begingroup$


I have a series of Neural Networks that I run on some video data. First network detects bounding boxes, then it extracts features for object tracking, matching each box to an id frame by frame and finally some other CNN is applied to all "boxes" extracted.



Naturally this is very slow and I understand that this is just so much you could do, but I wonder if there's a way to optimise this for speed?



Some suggestions I've heard is to concatenate my networks. I've used Thread class with Queue with some effect but want to try something a bit more radical










share|improve this question











$endgroup$











  • $begingroup$
    They are serial operations which are dependent on each other. One solution can be using lighter versions of the current models.
    $endgroup$
    – Media
    Mar 26 at 16:48










  • $begingroup$
    Probably a stupid question, but is there actually a way to "thin" them down, I can't really sacrifice a lot of accuracy and it seems that at least for bounding box detection yolov3 is as accurate as ssd but 3x faster so not sure I could find anything much faster. I only need 1 class (person) so perhaps there's a way to strip out other labels, that would only change the last dense layer which I assume won't speed up the network much
    $endgroup$
    – Edouardos Kim
    Mar 26 at 17:30










  • $begingroup$
    Yes, you can use transfer learning. But you have to train your network but not from scratch. It will thin your model!
    $endgroup$
    – Media
    Mar 26 at 17:32














1












1








1





$begingroup$


I have a series of Neural Networks that I run on some video data. First network detects bounding boxes, then it extracts features for object tracking, matching each box to an id frame by frame and finally some other CNN is applied to all "boxes" extracted.



Naturally this is very slow and I understand that this is just so much you could do, but I wonder if there's a way to optimise this for speed?



Some suggestions I've heard is to concatenate my networks. I've used Thread class with Queue with some effect but want to try something a bit more radical










share|improve this question











$endgroup$




I have a series of Neural Networks that I run on some video data. First network detects bounding boxes, then it extracts features for object tracking, matching each box to an id frame by frame and finally some other CNN is applied to all "boxes" extracted.



Naturally this is very slow and I understand that this is just so much you could do, but I wonder if there's a way to optimise this for speed?



Some suggestions I've heard is to concatenate my networks. I've used Thread class with Queue with some effect but want to try something a bit more radical







python deep-network






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 27 at 7:33









Ethan

643425




643425










asked Mar 26 at 16:45









Edouardos KimEdouardos Kim

61




61











  • $begingroup$
    They are serial operations which are dependent on each other. One solution can be using lighter versions of the current models.
    $endgroup$
    – Media
    Mar 26 at 16:48










  • $begingroup$
    Probably a stupid question, but is there actually a way to "thin" them down, I can't really sacrifice a lot of accuracy and it seems that at least for bounding box detection yolov3 is as accurate as ssd but 3x faster so not sure I could find anything much faster. I only need 1 class (person) so perhaps there's a way to strip out other labels, that would only change the last dense layer which I assume won't speed up the network much
    $endgroup$
    – Edouardos Kim
    Mar 26 at 17:30










  • $begingroup$
    Yes, you can use transfer learning. But you have to train your network but not from scratch. It will thin your model!
    $endgroup$
    – Media
    Mar 26 at 17:32

















  • $begingroup$
    They are serial operations which are dependent on each other. One solution can be using lighter versions of the current models.
    $endgroup$
    – Media
    Mar 26 at 16:48










  • $begingroup$
    Probably a stupid question, but is there actually a way to "thin" them down, I can't really sacrifice a lot of accuracy and it seems that at least for bounding box detection yolov3 is as accurate as ssd but 3x faster so not sure I could find anything much faster. I only need 1 class (person) so perhaps there's a way to strip out other labels, that would only change the last dense layer which I assume won't speed up the network much
    $endgroup$
    – Edouardos Kim
    Mar 26 at 17:30










  • $begingroup$
    Yes, you can use transfer learning. But you have to train your network but not from scratch. It will thin your model!
    $endgroup$
    – Media
    Mar 26 at 17:32
















$begingroup$
They are serial operations which are dependent on each other. One solution can be using lighter versions of the current models.
$endgroup$
– Media
Mar 26 at 16:48




$begingroup$
They are serial operations which are dependent on each other. One solution can be using lighter versions of the current models.
$endgroup$
– Media
Mar 26 at 16:48












$begingroup$
Probably a stupid question, but is there actually a way to "thin" them down, I can't really sacrifice a lot of accuracy and it seems that at least for bounding box detection yolov3 is as accurate as ssd but 3x faster so not sure I could find anything much faster. I only need 1 class (person) so perhaps there's a way to strip out other labels, that would only change the last dense layer which I assume won't speed up the network much
$endgroup$
– Edouardos Kim
Mar 26 at 17:30




$begingroup$
Probably a stupid question, but is there actually a way to "thin" them down, I can't really sacrifice a lot of accuracy and it seems that at least for bounding box detection yolov3 is as accurate as ssd but 3x faster so not sure I could find anything much faster. I only need 1 class (person) so perhaps there's a way to strip out other labels, that would only change the last dense layer which I assume won't speed up the network much
$endgroup$
– Edouardos Kim
Mar 26 at 17:30












$begingroup$
Yes, you can use transfer learning. But you have to train your network but not from scratch. It will thin your model!
$endgroup$
– Media
Mar 26 at 17:32





$begingroup$
Yes, you can use transfer learning. But you have to train your network but not from scratch. It will thin your model!
$endgroup$
– Media
Mar 26 at 17:32











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