Common Mistakes in Stock Price Prediction: Train-Test Split (Episode 22)

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  • čas přidán 27. 08. 2024

Komentáře • 18

  • @abderraoufbirem8253
    @abderraoufbirem8253 Před 9 měsíci +2

    It is astonishing how certain published papers in reputable journals presume to yield satisfactory results while employing the misleading LSTM forecasting method. If LSTM models were genuinely powerful, one would expect them to generate results comparable to those achieved in stock returns. However, surprisingly, they perform as poorly as ARIMA or naive forecasts when it comes to returns. This realization has led me to focus on developing deep learning models supported by textual data and NLP techniques in my current thesis, aiming to enhance predictive accuracy.

  • @rayeedahmed6034
    @rayeedahmed6034 Před rokem +4

    Thank you for this! I thought I was going crazy that every code on earth seemed to make the same mistake.

  • @henryginn7490
    @henryginn7490 Před měsícem

    I thought I was losing my mind. I'm forecasting time series for a uni project, supervisor gave me a link to a guide, I watched some videos on the internet, even read some papers. They all did this, and I was wondering how on earth this was meant to be a forecast. Thank you for these videos, they are very useful

  • @hexcoffee8817
    @hexcoffee8817 Před dnem

    Thanks, great series! Something I didn’t understand from this part though: Suppose you wanted to employ a model to only predict the next day‘s/period’s returns and trade based on those predictions - which I‘d imagine to be the most common use case. Then you actually always would have the returns up to the respective current day in practice. Therefore, in that case, I don’t see anything wrong with what you are criticizing? Why would you care to predict so far ahead with all its intermediate time steps anyway? Thanks!

  • @FPrimeHD1618
    @FPrimeHD1618 Před 2 lety +1

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  • @alperozyurt2118
    @alperozyurt2118 Před 2 lety +1

    I am very glad to see discount codes because in my country your courses' prices are equals to 10% of my country's minimum wage if I don't use the codes. Discounts have been used to course. Nevertheless, prices are equals to 4% of minimum wage . lol. I have just realised that I wish I would live somewhere better :D

  • @williamtempleton7259
    @williamtempleton7259 Před 2 lety +3

    Finally, was so confused about what a true forecast was, and wtf these crazy accurate 'forecasts' were in the literature. Now it's clear that they are doing 1 step predictions which like you say, is cheating.
    Here is my question.
    So in order to actually achieve a true forecast with an ML model, would we keep using the newly predicted value as the inputs and so on ?
    Are there any other ways to truly forecast with an ML model ?

    • @LazyProgrammerOfficial
      @LazyProgrammerOfficial  Před 2 lety

      It depends on the nature of the forecast. In my time series course, we showed how to identify whether or not something can be predicted. And hence, how to avoid predicting things which are unpredictable.
      Furthermore, as taught in my financial engineering course, one should think about why they are trying to use past to predict future in the first place.

  • @Coopervise
    @Coopervise Před 2 lety +1

    I bought your new course & can’t wait to study it during the holiday break.

    • @elyacine6457
      @elyacine6457 Před rokem

      can u help me to reach the course cause currently i havn't enough money to buy it
      thanks

    • @Coopervise
      @Coopervise Před rokem

      @@elyacine6457 Reach out to the developer & see if they have a discount in the future within your budget.

  • @SudhanshuGulhane
    @SudhanshuGulhane Před 3 měsíci

    Please correct me if I'm wrong,
    ideally we can train on lets say 70% data.
    then we can forecast for the rest 30% data using the future_steps or sequences variable?

    • @LazyProgrammerOfficial
      @LazyProgrammerOfficial  Před 2 měsíci

      It's covered in my courses ;) See either the Financial Engineering or Time Series Analysis course.

  • @pranavkhatri9564
    @pranavkhatri9564 Před rokem

    So can we not use models like Linear Regression, SVR, RFRs to predict the market ?

  • @SudhanshuGulhane
    @SudhanshuGulhane Před 3 měsíci

    then for lstm case how should be split the data or not?

    • @LazyProgrammerOfficial
      @LazyProgrammerOfficial  Před 2 měsíci

      It's covered in my courses ;) See either the Financial Engineering or Time Series Analysis course.

    • @virusvomen6286
      @virusvomen6286 Před 15 dny

      @@LazyProgrammerOfficial which course of among them should we go for to learn about predicting next day trend ?

    • @LazyProgrammerOfficial
      @LazyProgrammerOfficial  Před 14 dny

      @@virusvomen6286 Both the Financial Engineering course and Time Series Analysis course are recommended!