data mining & data ware house set 2 Detailed Explanation And More Example
MOST IMPORTANT computer mcq - 2 EXERCISES
The following question based on data mining and data ware house topic of computer mcq
(a) A class of learning algorithm that tries to find an optimum classification of a set of examples using the probabilistic theory.
(b) Any mechanism employed by a learning system to constrain the search space of a hypothesis.
(c) An approach to the design of learning algorithms that is inspired by the fact that when people encounter new situations, they often explain them by reference to familiar experiences, adapting the explanations to fit the new situation.
(d) None of these
The correct answers to the above question in:
Answer: (c)
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Question : 1
Statistics
a) The science of collecting, organizing, and applying numerical facts
b) Measure of the probability that a certain hypothesis is incorrect given certain observations.
c) One of the defining aspects of a data warehouse, which is specially built around all the existing applications of the operational dat(A)
d) None of these
Answer »Answer: (a)
Question : 2
Enrichment is
a) A stage of the KDD process in which new data is added to the existing selection
b) The process of finding a solution for a problem simply by enumerating all possible solutions according to some pre-defined order and then testing them.
c) The distance between two points as calculated using the Pythagoras theorem.
d) None of these
Answer »Answer: (a)
Question : 3
Query tools are
a) A reference to the speed of an algorithm, which is quadratically dependent on the size of the dat(A)
b) Attributes of a database table that can take only numerical values.
c) Tools designed to query a database.
d) None of these
Answer »Answer: (c)
Question : 4
Incremental learning referred to
a) Machine-learning involving different techniques
b) The learning algorithmic analyzes the examples on a systematic basis and makes incremental adjustments to the theory that is learned
c) Learning by generalizing from examples
d) None of these
Answer »Answer: (b)
Question : 5
Projection pursuit is
a) The result of the application of a theory or a rule in a specific case
b) One of several possible enters within a database table that is chosen by the designer as the primary means of accessing the data in the table.
c) Discipline in statistics that studies ways to find the most interesting projections of multi-dimensional spaces
d) None of these
Answer »Answer: (c)
Question : 6
Data warehouse is
a) The actual discovery phase of a knowledge discovery process
b) The stage of selecting the right data for a KDD process
c) A subject-oriented integrated timevariant non-volatile collection of data in support of management
d) None of these
Answer »Answer: (c)
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