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The European Information Technologies Certification Institute - EITCI ASBL

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EITCI Institute ASBL

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Questions and answers designated by tag: Data Cleaning

How to prepare and clean data before training?

Saturday, 18 January 2025 by Jenni Hopeela

In the field of machine learning, particularly when working with platforms such as Google Cloud Machine Learning, preparing and cleaning data is a critical step that directly impacts the performance and accuracy of the models you develop. This process involves several phases, each designed to ensure that the data used for training is of high

  • Published in Artificial Intelligence, EITC/AI/GCML Google Cloud Machine Learning, Introduction, What is machine learning
Tagged under: Artificial Intelligence, BigQuery, Data Augmentation, Data Cleaning, Data Integration, Data Preparation, Data Preprocessing, Data Transformation, Feature Engineering, Google Cloud, Machine Learning

When cleaning the data, how can one ensure the data is not biased?

Sunday, 01 September 2024 by Sonia B

Ensuring that data cleaning processes are free from bias is a critical concern in the field of machine learning, particularly when utilizing platforms such as Google Cloud Machine Learning. Bias during data cleaning can lead to skewed models, which in turn can produce inaccurate or unfair predictions. Addressing this issue requires a multifaceted approach encompassing

  • Published in Artificial Intelligence, EITC/AI/GCML Google Cloud Machine Learning, First steps in Machine Learning, The 7 steps of machine learning
Tagged under: Artificial Intelligence, Bias Mitigation, Data Cleaning, Data Preprocessing, Ethical AI, Fairness In AI, Google Cloud, Machine Learning

Why is data preparation and manipulation considered to be a significant part of the model development process in deep learning?

Sunday, 13 August 2023 by EITCA Academy

Data preparation and manipulation are considered to be a significant part of the model development process in deep learning due to several important reasons. Deep learning models are data-driven, meaning that their performance heavily relies on the quality and suitability of the data used for training. In order to achieve accurate and reliable results, it

  • Published in Artificial Intelligence, EITC/AI/DLPP Deep Learning with Python and PyTorch, Data, Datasets, Examination review
Tagged under: Artificial Intelligence, Class Imbalance, Data Augmentation, Data Cleaning, Data Format Suitability, Data Preprocessing

How do we pre-process the data before balancing it in the context of building a recurrent neural network for predicting cryptocurrency price movements?

Sunday, 13 August 2023 by EITCA Academy

Pre-processing data is a important step in building a recurrent neural network (RNN) for predicting cryptocurrency price movements. It involves transforming the raw input data into a suitable format that can be effectively utilized by the RNN model. In the context of balancing RNN sequence data, there are several important pre-processing techniques that can be

  • Published in Artificial Intelligence, EITC/AI/DLPTFK Deep Learning with Python, TensorFlow and Keras, Recurrent neural networks, Balancing RNN sequence data, Examination review
Tagged under: Artificial Intelligence, Data Cleaning, Feature Selection, Imbalanced Data, Normalization, Sequence Padding

How do we preprocess the data before applying RNNs to predict cryptocurrency prices?

Sunday, 13 August 2023 by EITCA Academy

To effectively predict cryptocurrency prices using recurrent neural networks (RNNs), it is important to preprocess the data in a manner that optimizes the model's performance. Preprocessing involves transforming the raw data into a format that is suitable for training an RNN model. In this answer, we will discuss the various steps involved in preprocessing cryptocurrency

  • Published in Artificial Intelligence, EITC/AI/DLPTFK Deep Learning with Python, TensorFlow and Keras, Recurrent neural networks, Introduction to Cryptocurrency-predicting RNN, Examination review
Tagged under: Artificial Intelligence, Cryptocurrency, Data Cleaning, Feature Scaling, Preprocessing, RNN

What are the steps involved in writing the data from the data frame to a file?

Tuesday, 08 August 2023 by EITCA Academy

To write the data from a data frame to a file, there are several steps involved. In the context of creating a chatbot with deep learning, Python, and TensorFlow, and using a database to train the data, the following steps can be followed: 1. Import the necessary libraries: Begin by importing the required libraries for

  • Published in Artificial Intelligence, EITC/AI/DLTF Deep Learning with TensorFlow, Creating a chatbot with deep learning, Python, and TensorFlow, Database to training data, Examination review
Tagged under: Artificial Intelligence, Data Cleaning, Data Frame, Data Preprocessing, File Writing, Pandas

What is the recommended approach for preprocessing larger datasets?

Tuesday, 08 August 2023 by EITCA Academy

Preprocessing larger datasets is a important step in the development of deep learning models, especially in the context of 3D convolutional neural networks (CNNs) for tasks such as lung cancer detection in the Kaggle competition. The quality and efficiency of preprocessing can significantly impact the performance of the model and the overall success of the

  • Published in Artificial Intelligence, EITC/AI/DLTF Deep Learning with TensorFlow, 3D convolutional neural network with Kaggle lung cancer detection competiton, Preprocessing data, Examination review
Tagged under: Artificial Intelligence, Data Augmentation, Data Cleaning, Data Rescaling, Dimensionality Reduction, Feature Extraction, Image Preprocessing, Preprocessing, Train-Validation-Test Split

What is the purpose of the "sample_handling" function in the preprocessing step?

Tuesday, 08 August 2023 by EITCA Academy

The "sample_handling" function plays a important role in the preprocessing step of deep learning with TensorFlow. Its purpose is to handle and manipulate the input data samples in a way that prepares them for further processing and analysis. By performing various operations on the samples, this function ensures that the data is in a suitable

  • Published in Artificial Intelligence, EITC/AI/DLTF Deep Learning with TensorFlow, TensorFlow, Preprocessing conitnued, Examination review
Tagged under: Artificial Intelligence, Data Augmentation, Data Cleaning, Deep Learning, Preprocessing, TensorFlow

Why is it important to clean the dataset before applying the K nearest neighbors algorithm?

Monday, 07 August 2023 by EITCA Academy

Cleaning the dataset before applying the K nearest neighbors (KNN) algorithm is important for several reasons. The quality and accuracy of the dataset directly impact the performance and reliability of the KNN algorithm. In this answer, we will explore the importance of dataset cleaning in the context of KNN algorithm, highlighting its implications and benefits.

  • Published in Artificial Intelligence, EITC/AI/MLP Machine Learning with Python, Programming machine learning, Applying own K nearest neighbors algorithm, Examination review
Tagged under: Artificial Intelligence, Data Cleaning, Feature Scaling, Irrelevant Features, Missing Values, Outliers

Why is preparing the dataset properly important for efficient training of machine learning models?

Saturday, 05 August 2023 by EITCA Academy

Preparing the dataset properly is of utmost importance for efficient training of machine learning models. A well-prepared dataset ensures that the models can learn effectively and make accurate predictions. This process involves several key steps, including data collection, data cleaning, data preprocessing, and data augmentation. Firstly, data collection is important as it provides the foundation

  • Published in Artificial Intelligence, EITC/AI/TFF TensorFlow Fundamentals, TensorFlow.js, Preparing dataset for machine learning, Examination review
Tagged under: Artificial Intelligence, Data Augmentation, Data Cleaning, Data Preparation, Data Preprocessing, Machine Learning
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