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Predicting when features are time-dependent



2019 Community Moderator ElectionRegression coefficient(s) when explanatory & response variables are time seriesUsing LSTMs for modelling and forecasting several time series generated by the same processLSTM: How to deal with nonstationarity when predicting a time seriesImproving LSTM Time-series PredictionsPredicting with multiple time seriesMultivariate Time-Series forecasting using LSTMHow to learn from time series with multiple values for each time pointsUsing LSTM's on Multivariate Input AND Multivariate OutputArchitecture for multivariate multi-time-series model where some features are TS specific and some features are globalModel for classifying time-series data with distinct features?










1












$begingroup$


How to predict data with time-dependent features?



For example, I have to predict the result of a Mortal Combat game:



X(i) = [player1_id, player2_id, hero_of_player1, hero_of_player2]

Y(i) = 1 if player1 wins or 0 if player2 wins


I have a dataset, containing games from large period of time. And, of course, performance of each player can variate during that time. Second, there were a lot of game patches, and they tuned some heroes' abilities. As a result overall hero strength can also variate through time as well as certain hero-vs-hero match-ups.



How to track that changes considering also overall and time-dependent impact of player+hero, hero-vs-hero, player-vs-player features?



So far I'm using simple LSTM network on whole game history. So my data has a single sample and total number of steps equal to game history length:



X = data.reshape(1,len(data),len(data[0]) #len(data[0]) corresponds to 4 features for a single record in dataset, but it is onehot-encoded.

m = Sequential()
m.add(LSTM(25, input_shape=(None, len(data[0])), return_sequences=True)
m.add(TimeDistirbuted(Dense(1))


I've got about 60% performance on the real problem. And I think it might be better and I can tune layer sizes, regularize, add stacking LSTMs. But did I choose an adequate NN-structure? What are the most suitable NN-structures for that kind of problems? Sliding-windows and Convolutional LSTMs sounds promising, but I don't have enough intuition about them.










share|improve this question











$endgroup$
















    1












    $begingroup$


    How to predict data with time-dependent features?



    For example, I have to predict the result of a Mortal Combat game:



    X(i) = [player1_id, player2_id, hero_of_player1, hero_of_player2]

    Y(i) = 1 if player1 wins or 0 if player2 wins


    I have a dataset, containing games from large period of time. And, of course, performance of each player can variate during that time. Second, there were a lot of game patches, and they tuned some heroes' abilities. As a result overall hero strength can also variate through time as well as certain hero-vs-hero match-ups.



    How to track that changes considering also overall and time-dependent impact of player+hero, hero-vs-hero, player-vs-player features?



    So far I'm using simple LSTM network on whole game history. So my data has a single sample and total number of steps equal to game history length:



    X = data.reshape(1,len(data),len(data[0]) #len(data[0]) corresponds to 4 features for a single record in dataset, but it is onehot-encoded.

    m = Sequential()
    m.add(LSTM(25, input_shape=(None, len(data[0])), return_sequences=True)
    m.add(TimeDistirbuted(Dense(1))


    I've got about 60% performance on the real problem. And I think it might be better and I can tune layer sizes, regularize, add stacking LSTMs. But did I choose an adequate NN-structure? What are the most suitable NN-structures for that kind of problems? Sliding-windows and Convolutional LSTMs sounds promising, but I don't have enough intuition about them.










    share|improve this question











    $endgroup$














      1












      1








      1





      $begingroup$


      How to predict data with time-dependent features?



      For example, I have to predict the result of a Mortal Combat game:



      X(i) = [player1_id, player2_id, hero_of_player1, hero_of_player2]

      Y(i) = 1 if player1 wins or 0 if player2 wins


      I have a dataset, containing games from large period of time. And, of course, performance of each player can variate during that time. Second, there were a lot of game patches, and they tuned some heroes' abilities. As a result overall hero strength can also variate through time as well as certain hero-vs-hero match-ups.



      How to track that changes considering also overall and time-dependent impact of player+hero, hero-vs-hero, player-vs-player features?



      So far I'm using simple LSTM network on whole game history. So my data has a single sample and total number of steps equal to game history length:



      X = data.reshape(1,len(data),len(data[0]) #len(data[0]) corresponds to 4 features for a single record in dataset, but it is onehot-encoded.

      m = Sequential()
      m.add(LSTM(25, input_shape=(None, len(data[0])), return_sequences=True)
      m.add(TimeDistirbuted(Dense(1))


      I've got about 60% performance on the real problem. And I think it might be better and I can tune layer sizes, regularize, add stacking LSTMs. But did I choose an adequate NN-structure? What are the most suitable NN-structures for that kind of problems? Sliding-windows and Convolutional LSTMs sounds promising, but I don't have enough intuition about them.










      share|improve this question











      $endgroup$




      How to predict data with time-dependent features?



      For example, I have to predict the result of a Mortal Combat game:



      X(i) = [player1_id, player2_id, hero_of_player1, hero_of_player2]

      Y(i) = 1 if player1 wins or 0 if player2 wins


      I have a dataset, containing games from large period of time. And, of course, performance of each player can variate during that time. Second, there were a lot of game patches, and they tuned some heroes' abilities. As a result overall hero strength can also variate through time as well as certain hero-vs-hero match-ups.



      How to track that changes considering also overall and time-dependent impact of player+hero, hero-vs-hero, player-vs-player features?



      So far I'm using simple LSTM network on whole game history. So my data has a single sample and total number of steps equal to game history length:



      X = data.reshape(1,len(data),len(data[0]) #len(data[0]) corresponds to 4 features for a single record in dataset, but it is onehot-encoded.

      m = Sequential()
      m.add(LSTM(25, input_shape=(None, len(data[0])), return_sequences=True)
      m.add(TimeDistirbuted(Dense(1))


      I've got about 60% performance on the real problem. And I think it might be better and I can tune layer sizes, regularize, add stacking LSTMs. But did I choose an adequate NN-structure? What are the most suitable NN-structures for that kind of problems? Sliding-windows and Convolutional LSTMs sounds promising, but I don't have enough intuition about them.







      deep-learning keras time-series lstm






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 29 at 13:11









      Glorfindel

      1511210




      1511210










      asked Mar 29 at 7:27









      farynaafarynaa

      62




      62




















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