Questions without an upvoted answer in Data Mining and Warehousing

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason RAssertion A: OLAP systems are optimized for complex queries and analys...

Consider that the visualization of a $3$-dimensional data cube is showing Sales Quantity for each combination of the attributes Product Type, Month and Country.From this,...

\[\begin{array}{ccc}\textbf{Time Hierarchy} & \textbf{Location Hierarchy} & \textbf{Product Hierarchy} \\\text{Year} & \text{Country} & \text{Item Category} \\\downarrow ...

A $3$-dimensional data cube shows sales quantity for each combination of product type, month and country.Now we want to visualize sales quantity for each combination of p...

Considering the following statements:Data transformation is involved in Datamining process.Online database is used in Data warehouse.Classification is a measure of accura...

Which of the following table contains the primary information in the data warehouse?Dimension tableFact tableLookup tablePrimary table

Which of the following refers to a method of sampling in which a core group of participants who are initially sampled for a research study recruit or recommend other pote...

Consider the following statements:S1: Binning reduces dimensionality by aggregating data points into fewer categories.S2: OLTP focuses on complex queries and aggregations...

With reference to cluster analysis in data mining, a distance measure that is NOT used is :Euclidean distance.Manhattan distance.Chebychev's distance.Lee distance.

Identify the incorrect statement :The overall strategy drives the e-commerce data warehousing strategy.Data warehousing in an e-commerce environment should be done in a c...

In a database, a rule is defined as $(\mathrm{P} 1$ and $\mathrm{P} 2)$ or $\mathrm{P} 3$ ? $\mathrm{R} 1(0.8)$ and $\mathrm{R} 2(0.3)$, where $\mathrm{P} 1$, $\mathrm{P}...

With reference to implementation of different association mining algorithms, identify the correct statement :The FP growth method was usually better than the best impleme...

Dimensional modeling in Data Mining refers to:view and interrogate datadefine structures and store dataretrieve information only none of these

Link analysis operation in data mining uses ___________ technique.Classification.Association discovery.Visualisation.Neural clustering.

Downflow is the process associated with _____ and back up of data in a warehouse.packagingarchivingextractionloading

Predictive modeling in data mining uses____technique.StatisticalAssociation DiscoveryValue predictionNone of these

Data Mining can be used as _________ Tool.SoftwareHardwareResearchProcess

Analysis of large database to retrive information is called :$\text{OLTP}$$\text{OLAP}$$\text{OLDP}$$\text{TLPP}$

​​​​​​​Data warehouse contains _____ data that is never found in operational environment.SummaryEncodedEncryptedScripted

​​​​​​​Data scrubbing isA process to reject data from the data warehouse and to create the necessary indexes.A process to load the data in the data warehouse and to creat...

Data warehouse bus matrix is a combination of Dimensions and Data martsDimensions and factsFacts and Data martsDimensions and Detailed facts

Discovery of new information in terms of pattern or rules from vast amount of data is called :Data miningScriptSpreadsheetNone of the above

Which of the following is not a Clustering method?K-Means methodSelf Organizing feature map methodK- nearest neighbor methodAgglomerative method

A data cube $C,$ has $n$ dimensions, and each dimensions has exactly $p$ distinct values in the base cuboid. Assume that there are no concept hierarchies associated with ...