Homework Help with Data Mining
Order ID 53563633773 Type Essay Writer Level Masters Style APA Sources/References 4 Perfect Number of Pages to Order 5-10 Pages
Homework Help with Data Mining
9 1 Homework
Please respond to the following questions: (10 point each)
1. Consider the definition of an abnormality as follows: An anomaly is an entity that has a disproportionately large impact on the building of a data model.
a. Compare this description to the typical anomalous definition based on a model.
c. Is this definition appropriate for data sets of various sizes (small, medium, or large)?
2. In one method for detecting anomalies, objects are represented as points in a multidimensional space, and the points are grouped into successive shells, each shell representing a layer around a cluster of points, such as a convex hull. If an object is found in one of the outer shells, it is considered an anomaly.
a. Is this definition most closely similar to which of the anomalous definitions in Section 9.2?
b. Identify two flaws in this definition of abnormality.
3. Take a look at Section 9.5’s (relative distance) K-means approach for outlier detection and the associated figure, Figure 9.10.
a. The outlier score for the points at the bottom of the compact cluster in Figure 9.10 is slightly higher than for the points at the top of the compact cluster. Why?
b. Assume we choose a significantly higher number of clusters, such as ten. Is it still possible to discover the most extreme outlier at the top of the graph using the provided method? Why do you think that is?
c. The use of relative distance compensates for density differences. Give an example of how this technique could lead to a faulty conclusion.
QUALITY OF RESPONSE NO RESPONSE POOR / UNSATISFACTORY SATISFACTORY GOOD EXCELLENT Content (worth a maximum of 50% of the total points) Zero points: Student failed to submit the final paper. 20 points out of 50: The essay illustrates poor understanding of the relevant material by failing to address or incorrectly addressing the relevant content; failing to identify or inaccurately explaining/defining key concepts/ideas; ignoring or incorrectly explaining key points/claims and the reasoning behind them; and/or incorrectly or inappropriately using terminology; and elements of the response are lacking. 30 points out of 50: The essay illustrates a rudimentary understanding of the relevant material by mentioning but not full explaining the relevant content; identifying some of the key concepts/ideas though failing to fully or accurately explain many of them; using terminology, though sometimes inaccurately or inappropriately; and/or incorporating some key claims/points but failing to explain the reasoning behind them or doing so inaccurately. Elements of the required response may also be lacking. 40 points out of 50: The essay illustrates solid understanding of the relevant material by correctly addressing most of the relevant content; identifying and explaining most of the key concepts/ideas; using correct terminology; explaining the reasoning behind most of the key points/claims; and/or where necessary or useful, substantiating some points with accurate examples. The answer is complete. 50 points: The essay illustrates exemplary understanding of the relevant material by thoroughly and correctly addressing the relevant content; identifying and explaining all of the key concepts/ideas; using correct terminology explaining the reasoning behind key points/claims and substantiating, as necessary/useful, points with several accurate and illuminating examples. No aspects of the required answer are missing. Use of Sources (worth a maximum of 20% of the total points). 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The paper has slight errors within the paper. This can include small errors or omissions with the cover page, abstract, page number, and headers. There could be also slight formatting issues with the document spacing or the font Additionally the paper might slightly exceed or undershoot the specific number of required written pages for the assignment. 10 points: Student provides a high-caliber, formatted paper. This includes an APA 6th edition cover page, abstract, page number, headers and is double spaced in 12’ Times Roman Font. Additionally, the paper conforms to the specific number of required written pages and neither goes over or under the specified length of the paper.
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