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What is the difference between “offline trained model” and “pretrained model”?



2019 Community Moderator ElectionNewbie: What is the difference between hypothesis class and models?What is the difference between model hyperparameters and model parameters?What is the difference between data analysis and machine learning?What is the different between Fine-tuning and Transfer-learning?What is the difference between Dilated Convolution and Deconvolution?What is the difference between statistical learning and predictive analytics?What is the difference between observation and variable?Difference between advantages of Experience Replay in DQN2013 paperWhich is the fastest image pretrained model?What is the difference between parameters & cooficients in Machine learning?










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I am confused that both are same or not, and then how can I differentiate with the online training model.










share|improve this question







New contributor




Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • $begingroup$
    Pretrained models are models which are trained on larger datasets along with high computation power. They tend to have high accuracies and have a higher level of generalisation. Offline models could be models which are trained on a local machine and not on a server or a cloud.
    $endgroup$
    – Shubham Panchal
    Mar 28 at 8:10
















1












$begingroup$


I am confused that both are same or not, and then how can I differentiate with the online training model.










share|improve this question







New contributor




Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$











  • $begingroup$
    Pretrained models are models which are trained on larger datasets along with high computation power. They tend to have high accuracies and have a higher level of generalisation. Offline models could be models which are trained on a local machine and not on a server or a cloud.
    $endgroup$
    – Shubham Panchal
    Mar 28 at 8:10














1












1








1





$begingroup$


I am confused that both are same or not, and then how can I differentiate with the online training model.










share|improve this question







New contributor




Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$




I am confused that both are same or not, and then how can I differentiate with the online training model.







machine-learning deep-learning computer-vision image-recognition






share|improve this question







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Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked Mar 28 at 6:46









Md. Maklachur RahmanMd. Maklachur Rahman

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New contributor





Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Md. Maklachur Rahman is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











  • $begingroup$
    Pretrained models are models which are trained on larger datasets along with high computation power. They tend to have high accuracies and have a higher level of generalisation. Offline models could be models which are trained on a local machine and not on a server or a cloud.
    $endgroup$
    – Shubham Panchal
    Mar 28 at 8:10

















  • $begingroup$
    Pretrained models are models which are trained on larger datasets along with high computation power. They tend to have high accuracies and have a higher level of generalisation. Offline models could be models which are trained on a local machine and not on a server or a cloud.
    $endgroup$
    – Shubham Panchal
    Mar 28 at 8:10
















$begingroup$
Pretrained models are models which are trained on larger datasets along with high computation power. They tend to have high accuracies and have a higher level of generalisation. Offline models could be models which are trained on a local machine and not on a server or a cloud.
$endgroup$
– Shubham Panchal
Mar 28 at 8:10





$begingroup$
Pretrained models are models which are trained on larger datasets along with high computation power. They tend to have high accuracies and have a higher level of generalisation. Offline models could be models which are trained on a local machine and not on a server or a cloud.
$endgroup$
– Shubham Panchal
Mar 28 at 8:10











2 Answers
2






active

oldest

votes


















1












$begingroup$


Every pre-trained model is an offline-trained model, but not the
reverse.




Offline training is any training that leaves the model unchanged when new observations arrive, i.e. it has an end. Online training constantly updates the model with the help of new, incoming observations without using the previous training points, although, having a limited memory of previous samples compared to all seen samples is OK. Therefore, training offline periodically on all the training points, no matter how frequent, is not the same as online training.



  • We can use offline training for a model that supports online training, however, to train online, the model must allow such training. For example, common implementation of SVM cannot be trained on N new data points without re-using the previous training points. In contrast, Bayesian models are natural candidates for online learning, as they are trained by updating the belief (model) upon new observations, i.e. posterior update.

Pre-training is an offline training followed by a main, task-specific training, hence the prefix "pre".



For example, a $512 times 512 times 3 rightarrow 128$ dimensionality reduction model is pre-trained on a large dataset of RGB images (either supervised, or self-supervised). Then, the pre-trained model is used to reduce the dimension of our [new] images to $128$, which is then being fed to the main, task-specific model.



Note that the word "self-supervised" (supervised by input itself) is currently used for models that try to reconstruct, or predict the whole, or part of the input as close as possible; e.g., auto-encoders, or some language models such as Word2Vec.






share|improve this answer











$endgroup$




















    0












    $begingroup$

    enter image description here



    Online Model :



    Model that continuously learns in production. If 10 new training samples are available, we do not need to retrain with all previous samples.



    Pre-trained model



    Model has already been trained on large data sets. This is a useful technique via transfer learning.



    https://www.slideshare.net/queirozfcom/online-machine-learning-introduction-and-examples



    https://www.analyticsvidhya.com/blog/2015/01/introduction-online-machine-learning-simplified-2/



    https://en.wikipedia.org/wiki/Online_machine_learning






    share|improve this answer









    $endgroup$













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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1












      $begingroup$


      Every pre-trained model is an offline-trained model, but not the
      reverse.




      Offline training is any training that leaves the model unchanged when new observations arrive, i.e. it has an end. Online training constantly updates the model with the help of new, incoming observations without using the previous training points, although, having a limited memory of previous samples compared to all seen samples is OK. Therefore, training offline periodically on all the training points, no matter how frequent, is not the same as online training.



      • We can use offline training for a model that supports online training, however, to train online, the model must allow such training. For example, common implementation of SVM cannot be trained on N new data points without re-using the previous training points. In contrast, Bayesian models are natural candidates for online learning, as they are trained by updating the belief (model) upon new observations, i.e. posterior update.

      Pre-training is an offline training followed by a main, task-specific training, hence the prefix "pre".



      For example, a $512 times 512 times 3 rightarrow 128$ dimensionality reduction model is pre-trained on a large dataset of RGB images (either supervised, or self-supervised). Then, the pre-trained model is used to reduce the dimension of our [new] images to $128$, which is then being fed to the main, task-specific model.



      Note that the word "self-supervised" (supervised by input itself) is currently used for models that try to reconstruct, or predict the whole, or part of the input as close as possible; e.g., auto-encoders, or some language models such as Word2Vec.






      share|improve this answer











      $endgroup$

















        1












        $begingroup$


        Every pre-trained model is an offline-trained model, but not the
        reverse.




        Offline training is any training that leaves the model unchanged when new observations arrive, i.e. it has an end. Online training constantly updates the model with the help of new, incoming observations without using the previous training points, although, having a limited memory of previous samples compared to all seen samples is OK. Therefore, training offline periodically on all the training points, no matter how frequent, is not the same as online training.



        • We can use offline training for a model that supports online training, however, to train online, the model must allow such training. For example, common implementation of SVM cannot be trained on N new data points without re-using the previous training points. In contrast, Bayesian models are natural candidates for online learning, as they are trained by updating the belief (model) upon new observations, i.e. posterior update.

        Pre-training is an offline training followed by a main, task-specific training, hence the prefix "pre".



        For example, a $512 times 512 times 3 rightarrow 128$ dimensionality reduction model is pre-trained on a large dataset of RGB images (either supervised, or self-supervised). Then, the pre-trained model is used to reduce the dimension of our [new] images to $128$, which is then being fed to the main, task-specific model.



        Note that the word "self-supervised" (supervised by input itself) is currently used for models that try to reconstruct, or predict the whole, or part of the input as close as possible; e.g., auto-encoders, or some language models such as Word2Vec.






        share|improve this answer











        $endgroup$















          1












          1








          1





          $begingroup$


          Every pre-trained model is an offline-trained model, but not the
          reverse.




          Offline training is any training that leaves the model unchanged when new observations arrive, i.e. it has an end. Online training constantly updates the model with the help of new, incoming observations without using the previous training points, although, having a limited memory of previous samples compared to all seen samples is OK. Therefore, training offline periodically on all the training points, no matter how frequent, is not the same as online training.



          • We can use offline training for a model that supports online training, however, to train online, the model must allow such training. For example, common implementation of SVM cannot be trained on N new data points without re-using the previous training points. In contrast, Bayesian models are natural candidates for online learning, as they are trained by updating the belief (model) upon new observations, i.e. posterior update.

          Pre-training is an offline training followed by a main, task-specific training, hence the prefix "pre".



          For example, a $512 times 512 times 3 rightarrow 128$ dimensionality reduction model is pre-trained on a large dataset of RGB images (either supervised, or self-supervised). Then, the pre-trained model is used to reduce the dimension of our [new] images to $128$, which is then being fed to the main, task-specific model.



          Note that the word "self-supervised" (supervised by input itself) is currently used for models that try to reconstruct, or predict the whole, or part of the input as close as possible; e.g., auto-encoders, or some language models such as Word2Vec.






          share|improve this answer











          $endgroup$




          Every pre-trained model is an offline-trained model, but not the
          reverse.




          Offline training is any training that leaves the model unchanged when new observations arrive, i.e. it has an end. Online training constantly updates the model with the help of new, incoming observations without using the previous training points, although, having a limited memory of previous samples compared to all seen samples is OK. Therefore, training offline periodically on all the training points, no matter how frequent, is not the same as online training.



          • We can use offline training for a model that supports online training, however, to train online, the model must allow such training. For example, common implementation of SVM cannot be trained on N new data points without re-using the previous training points. In contrast, Bayesian models are natural candidates for online learning, as they are trained by updating the belief (model) upon new observations, i.e. posterior update.

          Pre-training is an offline training followed by a main, task-specific training, hence the prefix "pre".



          For example, a $512 times 512 times 3 rightarrow 128$ dimensionality reduction model is pre-trained on a large dataset of RGB images (either supervised, or self-supervised). Then, the pre-trained model is used to reduce the dimension of our [new] images to $128$, which is then being fed to the main, task-specific model.



          Note that the word "self-supervised" (supervised by input itself) is currently used for models that try to reconstruct, or predict the whole, or part of the input as close as possible; e.g., auto-encoders, or some language models such as Word2Vec.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Mar 29 at 9:10

























          answered Mar 28 at 13:37









          EsmailianEsmailian

          2,536318




          2,536318





















              0












              $begingroup$

              enter image description here



              Online Model :



              Model that continuously learns in production. If 10 new training samples are available, we do not need to retrain with all previous samples.



              Pre-trained model



              Model has already been trained on large data sets. This is a useful technique via transfer learning.



              https://www.slideshare.net/queirozfcom/online-machine-learning-introduction-and-examples



              https://www.analyticsvidhya.com/blog/2015/01/introduction-online-machine-learning-simplified-2/



              https://en.wikipedia.org/wiki/Online_machine_learning






              share|improve this answer









              $endgroup$

















                0












                $begingroup$

                enter image description here



                Online Model :



                Model that continuously learns in production. If 10 new training samples are available, we do not need to retrain with all previous samples.



                Pre-trained model



                Model has already been trained on large data sets. This is a useful technique via transfer learning.



                https://www.slideshare.net/queirozfcom/online-machine-learning-introduction-and-examples



                https://www.analyticsvidhya.com/blog/2015/01/introduction-online-machine-learning-simplified-2/



                https://en.wikipedia.org/wiki/Online_machine_learning






                share|improve this answer









                $endgroup$















                  0












                  0








                  0





                  $begingroup$

                  enter image description here



                  Online Model :



                  Model that continuously learns in production. If 10 new training samples are available, we do not need to retrain with all previous samples.



                  Pre-trained model



                  Model has already been trained on large data sets. This is a useful technique via transfer learning.



                  https://www.slideshare.net/queirozfcom/online-machine-learning-introduction-and-examples



                  https://www.analyticsvidhya.com/blog/2015/01/introduction-online-machine-learning-simplified-2/



                  https://en.wikipedia.org/wiki/Online_machine_learning






                  share|improve this answer









                  $endgroup$



                  enter image description here



                  Online Model :



                  Model that continuously learns in production. If 10 new training samples are available, we do not need to retrain with all previous samples.



                  Pre-trained model



                  Model has already been trained on large data sets. This is a useful technique via transfer learning.



                  https://www.slideshare.net/queirozfcom/online-machine-learning-introduction-and-examples



                  https://www.analyticsvidhya.com/blog/2015/01/introduction-online-machine-learning-simplified-2/



                  https://en.wikipedia.org/wiki/Online_machine_learning







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Mar 28 at 9:52









                  Shamit VermaShamit Verma

                  1,1491212




                  1,1491212




















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