Quiznetik

Data Mining and Business Intelligence | Set 3

1. The human brain consists of a network of .

Correct : A. Neurons

2. Each neuron is made up of a number of nerve fibers called________.

Correct : D. Dendrites

3. The__________is a long, single fiber that originates from the cell body.

Correct : A. Axon

4. A single axon makes of synapses with other neurons.

Correct : C. Thousands

5. is a complex chemical process in neural networks.

Correct : C. Transmission process

6. Is the connectivity of the neuron that give simple devices their real power?

Correct : D. Fire

7. Are highly simplified models of biological neurons?

Correct : A. Artificial neurons

8. The biological neuron's__________is a continuous function rather than a step function.

Correct : C. Output.

9. The threshold function is replaced by continuousfunctions called______functions.

Correct : A. Activation.

10. The sigmoid function also knows as __functions.

Correct : B. Logisti

11. MLP stands for .

Correct : D. Multi-layer perception

12. In a feed- forward networks, the connections between layers are________from input to output.

Correct : B. Unidirectional

13. The network topology is constrained to be .

Correct : A. Feed forward

14. RBF stands for .

Correct : A. Radial basis function

15. RBF have only hidden layer.

Correct : D. One

16. RBF hidden layer units have a receptive field which has a________; that is, a particular input value at which they have a maximal output.

Correct : C. Centre

17. Training may be used when a clear link between input data sets and target output values does not exist.

Correct : D. D Unsupervised

18. Employs the supervised mode of learning.

Correct : C. MLP & RBF

19. Design involves deciding on their centers and the sharpness of their Gaussians.

Correct : D. RBF

20. is the most widely applied neural network technique.

Correct : D. MLP

21. SOM is an acronym of .

Correct : A. Self-organizing map

22. Is one of the most popular models in the unsupervised framework?

Correct : A. SOM

23. The actual amount of reduction at each learning step may be guided by_________.

Correct : C. learning rate

24. The SOM was a neural network model developed by__________.

Correct : B. Teuvokohonen

25. SOM was developed during .

Correct : D. 1979 -82

26. Investment analysis used in neural networks is to predict the movement of_________from previous data.

Correct : B. Stock

27. SOMs are used to cluster a specific dataset containing information about the patient’s drugs etc.

Correct : C. Medical

28. GA stands for ____ .

Correct : A. Genetic algorithm

29. GA was introduced in the year________.

Correct : C. 1975

30. Genetic algorithms are search algorithms based on the mechanics of natural .

Correct : B. Genetics

31. The RSES system was developed in .

Correct : A. Poland

32. Crossover is used to .

Correct : A. Recombine the population’s genetic material

33. The mutation operator .

Correct : B. Introduce new genetic structures in the population

34. Which of the following is an operation in genetic algorithm?

Correct : D. All of the above

35. ____________ is a system created for rule induction.

Correct : D. LERS

36. NLP stands for____________.

Correct : D. Natural Language Processing

37. Web content mining describes the discovery of useful information from the contents.

Correct : B. Web

38. Research on mining multi-types of data is termed as__________data.

Correct : B. Multimedia

39. Mining is concerned with discovering the model underlying the link structures of the web.

Correct : B. Web structure

40. is the way of studying the web link structure.

Correct : C. Social network

41. The__________propose a measure of standing a node based on path counting.

Correct : B. B Close web

42. In web mining, is used to find natural groupings of users, pages, etc.

Correct : A. Clustering

43. In web mining, is used to know the order in which URLs tend to be accessed.

Correct : C. sequential analysis

44. In web mining, is used to know which URLs tend to be requested together.

Correct : B. Associations

45. Describes the discovery of useful information from the web contents.

Correct : A. Web content mining

46. is concerned with discovering the model underlying the link structures of the web.

Correct : B. Web structure mining.

47. The__________engine for a data warehouse supports query-triggered usage of data.

Correct : C. OLAP

48. displays of data such as maps, charts and other graphical representation allow data to be presented compactly to the users.

Correct : B. Visual