Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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If the issue set consists entirely of nominal characteristics,
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- If the issue set consists entirely of nominal characteristics, vector space-based classification algorithms are usually not the best option. Let me know what you think about this assertion. How would you apply ML to the task of categorizing nominal data?arrow_forwardWhat is true about a validation set? its data should be similar to that of the training set we train our models on the validation set to show that they are valid the validation set is often smaller than the training set validation sets, while popular, are not necessary to produce ML models to be used in the world the validation set is the collection of y-values to the inputs to your model, which are the x-valuesarrow_forwardVector space classification methods frequently fail when applied to problem sets with nominal feature sets alone. What do you think of the statement? Using ML, how would you classify nominal data? Answer each of the above queries in detail.arrow_forward
- Is it feasible to compare the differences between a prescriptive and a descriptive model to make the distinction?arrow_forward4. Draw the Hasse Diagram for the following partial orderings.(a) S = {a, b, c} and ρ = {(a, a),(b, b),(c, c),(a, b),(b, c),(a, c)}(b) S = {a, b, c, d} and ρ = {(a, a),(b, b),(c, c),(d, d),(a, b),(a, c)}(c) S = {∅, {a}, {a, b}, {c}, {a, c}, {b}} and AρB ↔ A ⊆ B.arrow_forwardCan the interface of one of the views be entirely altered without affecting the Model, taking into mind the propagation mechanism and the Model-View-Controller architecture? Break down your decision.arrow_forward
- Is it possible, considering the propagation approach, to completely change the look of one view in the Model-View-Controller hierarchy without impacting the Model? Justify your stance.arrow_forwardThe database interface of a library allows searching only for a single attribute (such as Title or Author ) in each query. Your friend decided to extend it’s functionality and wrote an algorithm that allows searching for books that satisfy multiple predicates over single attributes in conjunction. He tells you the algorithm reuses the already implemented query functionality and works by intersecting the results ( book id’s ) of queries over single attributes.Which of the following assumptions on your friend’s algorithm are plausible?a) Its worst-case run-time necessarily increases exponentially with respect to the number of attributes in the query.b) Its worst-case run-time depends on the length of the longest result of the single-attribute queries.c) It might be implemented using an join.d) It might be implemented using sorting.arrow_forwardConsider the differences between the kNN classifier and the Naive Bayes classifier, as well as the appropriate use of each classifier at different times. Consider the differences between the kNN classifier and the Naive Bayes classifier, as well as the appropriate use of each classifier at different times.arrow_forward
- When the issue set contains only nominal characteristics, vector space-based classification algorithms are usually not the best solution. What are your thoughts on this statement? How would you utilise machine learning to categorise nominal data?arrow_forwardThe comparison of deterministic versus non-deterministic computers, which are focused on function rather than relation, piques my interest.arrow_forwardThere are certain constraints imposed by selection structures in computer programming, notwithstanding their use. The same procedure must be followed in all cases, whether dealing with consumers, online clients, or other sorts of transactions. Is it true that various criteria apply to various occupations? So, why are these structures so special? There are certain constraints imposed by selection structures in computer programming, notwithstanding their use. The same procedure must be followed in all cases, whether dealing with consumers, online clients, or other sorts of transactions. Is it true that various criteria apply to various occupations? So, why are these structures so special? There are certain constraints imposed by selection structures in computer programming, notwithstanding their use. The same procedure must be followed in all cases, whether dealing with consumers, online clients, or other sorts of transactions. Is it true that various criteria apply to…arrow_forward
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