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  "fetched_at": "2026-10-20T07:43:47Z",
  "source_url": "https://www.kaggle.com/competitions/dollar-yuan-exchange-rate/data",
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      "content": "Presented below are the essential files you need to kickstart your journey in this competition. These files contain the necessary data and resources to dive into the challenges and begin your exploration. Familiarize yourself with the contents, delve into the details, and let these files be your guide as you embark on this exciting competition. Good luck!\n",
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      "content": "Welcome to the exciting world of foreign exchange rate prediction! In this Kaggle competition, we invite R Programming Course for Better Data Mining and Analytics course participants to showcase their skills in building accurate models for forecasting the exchange rate between the United States Dollar (USD) and the Chinese Yuan (CNY).\n\nThe exchange rate between these two major currencies plays a pivotal role in global trade, finance, and economic stability. Predicting these fluctuations accurately can provide valuable insights to investors, businesses, and policymakers, enabling them to make informed decisions and manage risks effectively.\n\nAs a participant in this competition, you will be provided with a dataset that includes historical data on USD-CNY exchange rates.\n\nYour challenge is to develop a robust machine learning model capable of accurately predicting the future USD-CNY exchange rates based on the provided dataset. Your model should consider the temporal nature of the data, capturing seasonality, trends, and other relevant patterns to make reliable predictions. Participants are encouraged to explore advanced techniques and methodologies, such as time series analysis, feature engineering, ensemble models, and deep learning approaches.\n\nTo evaluate the performance of your model, we will be using a hold-out set from the provided dataset. The submissions will be evaluated based on well-established evaluation metric root mean squared error (RMSE).\n\nForm a duo with your friend and embark on this thrilling competition together! The maximum group size allowed is limited to two individuals. Join forces, pool your expertise, and tackle the challenges ahead as a dynamic team of two. \n\nGood luck, and may your predictions pave the way to profitable insights in the world of foreign exchange!",
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    {
      "name": "Evaluation",
      "content": "$$ RMSE = \\sqrt{\\frac{1}{n}\\Sigma_{i=1}^{n}{\\Big(\\frac{d_i -f_i}{\\sigma_i}\\Big)^2}} $$",
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