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BCOR 2205 FINAL EXAM QUESTIONS WITH ACCURATE SOLUTIONS

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BCOR 2205 FINAL EXAM QUESTIONS WITH ACCURATE SOLUTIONS

Institution
BCOR 2205
Course
BCOR 2205

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BCOR 2205 FINAL EXAM QUESTIONS WITH ACCURATE
SOLUTIONS



Machine Learning -- Answer ✔✔ the extraction of knowledge from data based on
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algorithms created from training data
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Exploratory Data Analysis (EDA) -- Answer ✔✔ examining data for potentially important
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patterns and relationships, especially through the use of simple graphical techniques and
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numerical summaries
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Feature engineering -- Answer ✔✔ Cleaning data, combining features, splitting features into
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multiple features, handling missing values, and dealing with text, etc.
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Algorithm selection and hyper-parameter tuning -- Answer ✔✔ Keeping up with the
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"dizzying number" of available algorithms and their quadrillions of parameter combinations
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Model diagnostics -- Answer ✔✔ Evaluation of top models
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8 Criteria of Auto ML Excellence -- Answer ✔✔ 1.Accuracy
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2.Productivity
3.Ease of use
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4.Understanding and learning .l .l .l




5.Resource availability .l




6.Process transparency- effects understanding and learning
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7.Generalizability across contexts .l .l




8.Recommended actions .l




Business Problem -- Answer ✔✔ An issue of strategic or tactical importance preventing an
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enterprise or organization from achieving its goals.
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, categorical data -- Answer ✔✔ Data that consists of names, labels, or other nonnumerical
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values
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Numerical data -- Answer ✔✔ Data that consists of numbers .l .l .l .l .l .l .l .l .l




Date/Time data -- Answer ✔✔ recognized formats for date and time values
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string data type -- Answer ✔✔ A sequence of characters and punctuation that contains
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textual information (also called text data type)
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Algorithms -- Answer ✔✔ very specific, step-by-step procedures for solving certain types
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of problems
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Training Set -- Answer ✔✔ subsection of a dataset from which the machine learning
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algorithm uncovers or "learns" relationships between the features and the target variable
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validation set -- Answer ✔✔ A data set in which the input is provided to the computer and
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the desired output is known, so that it can be determined how well a machine learning an
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algorithm is working.
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Holdout Set -- Answer ✔✔ a subsection of a dataset to provide a final estimate of the
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machine learning model's performance after if has been trained and validated. Holdout sets
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should never be used to make decisions about which algorithms to use for improving tuning
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algorithms.
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Overtraining -- Answer ✔✔ a model with poor generalization => memorizes examples .l .l .l .l .l .l .l .l .l .l .l




instead
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k-fold validation -- Answer ✔✔ Partitioning the data set into k equal subsets
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Autopilot Modeling -- Answer ✔✔ The normal setting that is used to evaluate data
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Quick Autopilot -- Answer ✔✔ Fewer blueprints
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Manual mode -- Answer ✔✔ Choose the blueprints
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Institution
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Course
BCOR 2205

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