Answer and Explanation:
Some of the advantages of using the F measure (weighted harmonic mean) over using the Precision & Recall when evaluating an IR system performance are as follows-
- Precision quantifies the number of positive class predictions that actually belong to the positive class.
- Recall quantifies the number of positive class predictions made out of all positive examples in the dataset.
- F-Measure provides a single score that balances both the concerns of precision and recall in one number.
- A measure that combines precision and recall is the harmonic mean of precision and recall, the traditional F-measure or balanced F-score:
F=2((precision.recall)/(precision+recall))
Answer:
A. Pivot Table
Explanation:
Given that a Pivot Table is a form of a table in statistics that comprises various data of several tables in a shortened form.
This table is then used to carry out analysis of data in numerous ways to reach a meaningful conclusion to make a decision.
Hence, in this case, the correct answer is a PIVOT TABLE.
Answer:
Computer is a electronic device which give us accurate result in a short preodical of time
Answer:
applications
Explanation:
In an information system, applications or software are indispensable. This is because the entire data/info processing pipeline running on daily basis have been digitized. Users are heavily rely on the applications to gain and store new data, to manage and process the data and to deliver the necessary output. The applications enable the entire data processing work become more efficient, systematic and also more secure.
