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| Section | Objectives |
|---|---|
| Topic 1: AI Strategy & Business Transformation | - AI-driven business use cases - ROI and value creation with AI |
| Topic 2: Deployment & AI Operations | - Model monitoring and drift management - Model deployment pipelines |
| Topic 3: Data Preparation & Feature Engineering | - Feature engineering techniques - Data cleaning and preprocessing |
| Topic 4: Model Evaluation & Metrics | - Performance metrics (precision, recall, F1, AUC-ROC) - Model validation and selection |
| Topic 5: Responsible AI & Ethics | - AI governance and compliance (e.g., GDPR) - Bias detection and mitigation |
| Topic 6: Model Development & Machine Learning | - Model training and optimization - Supervised and unsupervised learning |
| Topic 7: AI Fundamentals & Business Applications | - AI applications in business operations - AI fundamentals and architectures |
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NEW QUESTION # 27
A retail company has a large dataset of customer purchases but no predefined labels. The AI system groups customers into segments based on similar buying behavior. This is an example of ______.
Answer: A
Explanation:
Unsupervised learning is the correct answer because the dataset does not contain predefined labels or known target outcomes. The AI system is identifying natural patterns in the data and grouping customers with similar purchasing behavior. This type of task is commonly called clustering, which is one of the most common applications of unsupervised learning. Supervised learning is incorrect because there are no labeled examples telling the model which customer belongs to which segment. Reinforcement learning is incorrect because the system is not learning through rewards or penalties. Transfer learning involves reusing knowledge from one trained model for another related task, which is not described here. Semi-supervised learning would involve both labeled and unlabeled data, but this scenario only mentions unlabeled data. Therefore, the correct answer is B. unsupervised learning .
NEW QUESTION # 28
Choose the CORRECT second step in the ML lifecycle?
Answer: C
Explanation:
The correct answer is B. Data understanding . In the machine learning lifecycle, after the initial data acquisition or data collection stage, the next major activity is to understand the available data. Data understanding involves exploring the dataset, reviewing data sources, identifying variables, checking patterns, finding missing values, detecting outliers, and understanding whether the data is suitable for the business or operational problem being solved.
Data acquisition is usually an earlier step because the data must first be collected or accessed before it can be analyzed. Data preparation comes after data understanding because teams need to know the data's structure, quality, gaps, and relevance before cleaning, transforming, engineering features, or formatting it for model training. Options D and E are not correct because the question asks for the single second step, not a combination of lifecycle activities. Therefore, the correct second step in the ML lifecycle is B. Data understanding .
NEW QUESTION # 29
If humans are unlabeling the data and the machine is correctly labeling current or future data points, it's
______.
Answer: E
Explanation:
Semi-supervised learning is the correct answer because it combines a small amount of labeled data with a larger amount of unlabeled data. In this scenario, humans are not fully labeling the data, but the machine is still able to correctly label current or future data points by learning patterns from the available data. That matches the concept of semi-supervised learning, where the model uses limited human-provided labels and extends learning to unlabeled examples.
Supervised learning is not the best answer because supervised learning depends on clearly labeled training data supplied by humans. Unsupervised learning is also incorrect because it identifies hidden patterns or clusters without using labels, rather than predicting correct labels for future data points. Reinforcement learning is based on rewards, penalties, actions, and an environment, which is not described here. "Semi- reinforcement learning" is not a standard main category in machine learning.
Therefore, the most accurate answer is **E. Semi-supervised learning**.
NEW QUESTION # 30
If humans are labeling the data and the machine is correctly labeling current or future data points, it's ______.
Answer: D
Explanation:
The correct answer is A. supervised learning because supervised learning uses labeled data to train a machine learning model. In this method, humans or existing systems provide correct labels for the training examples, and the model learns the relationship between input data and the expected output labels. After training, the machine can apply what it has learned to correctly classify or label current and future data points.
Unsupervised learning is incorrect because it works with unlabeled data and discovers hidden patterns, groups, or structures without human-provided labels. Reinforcement learning is also incorrect because it is based on actions, rewards, penalties, and learning through interaction with an environment. Semi-supervised learning uses a combination of a small amount of labeled data and a larger amount of unlabeled data, but the question clearly states that humans are labeling the data. "Semi Reinforcement learning" is not the standard answer here. Therefore, the correct choice is A. supervised learning .
NEW QUESTION # 31
Supervised learning is a type of machine learning where the algorithm learns from a ______.
Answer: B
Explanation:
The correct answer is A. labeled dataset . Supervised learning is a machine learning method in which an algorithm is trained using data that already contains the correct output labels or target values. Each training example includes input features and a known answer, allowing the model to learn the relationship between the inputs and the expected output. Once trained, the model can use that learned relationship to classify or predict outcomes for new data.
An unlabeled dataset is used in unsupervised learning, where the model identifies hidden patterns, clusters, or relationships without predefined labels. An "explained dataset" is not a standard machine learning category.
Option D is incorrect because supervised learning does not learn from both labeled and unlabeled datasets as its primary definition. Option E is also incorrect because "explained dataset" is not the correct term.
Therefore, supervised learning learns from a labeled dataset , making A the correct answer.
NEW QUESTION # 32
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