Knowledge quiz

It’s time to put what you’ve learned to the test, get 8 questions right to pass this week.

Which phase precedes the Deployment phase of the cross-industry standard process for data mining (CRISP-DM) methodology?

Choose the correct answer.

Evaluation

Modeling

Data preparation

Business understanding

Which statements regarding event stream processing (ESP) are true?

There are two correct answers.

ESP is used for batch scoring type deployments.

ESP delivers results in response to queries that are run against it by a user.

ESP can act based on combinations of events such as trends or patterns.

ESP applies continuous queries to streams of events.

Which internal organizational events might affect the performance of a predictive model?

There are three correct answers.

An increase in the number of staff

The launch of new products and services

Changes in product distribution channels

Changes to a product's design

Changes in the IT department personnel hierarchy

Which of the following statements regarding a predictive model "refresh" are true?

There are three correct answers.

We assume the explanatory variables in the original predictive model are still valid.

The weights that were assigned to each existing explanatory variable are adjusted.

The refreshed predictive model is tested to make sure that the outputs are in line with the current environment.

The predictive model is totally rebuilt from the start of the Business Understanding phase of the cross-industry standard process for data mining (CRISP-DM) methodology.

Previously unused explanatory variables are introduced into the predictive model.

In which task of the Deployment phase of the cross-industry standard process for data mining (CRISP-DM) methodology, do you summarize the results?

Choose the correct answer.

Plan monitoring and maintenance

Produce final report

Review project

Plan deployment

Which of the following types of model is most likely to be stable over time and therefore need retraining infrequently?

Choose the correct answer.

Propensity of a financial services customer to default on a personal loan.

Propensity of a mobile telecommunications customer to switch to another provider.

Propensity of a user of an on-demand music streaming service to like music from a new artist.

Propensity of a supermarket customer to purchase a seasonal fruit using a buy-one-get-one-free offer valid for one month.

Which statements about concept drift are true?

Choose the correct answer.

It describes the change of the properties of the explanatory variables.

The changes in the data always occur gradually over time.

It occurs due to a statistical change in the distribution of the target variable.

"Data drift" is another term for "concept drift".

Which business applications would require real-time scoring?

Choose the correct answer.

Predicting which customers will respond to a direct mail campaign.

Detecting if a credit card payment is fraudulent at the point of sale.

Calculating the expected total sales of customers in the next 12 months.

Predicting the propensity of telecommunication postpaid customers to switch to another provider in the next 3 months.

Which tasks are included in the Deployment phase of the cross-industry standard process for data mining (CRISP-DM) methodology?

There are three correct answers.

Plan monitoring and maintenance

Produce final report

Review project

Determine next steps

Assess situation

10.

If a Monitoring phase is included in the cross-industry standard process for data mining (CRISP-DM) methodology, which phase will it follow?

Choose the correct answer.

Modeling

Evaluation

Deployment

Data preparation