Data Science at BFH - Bern University Of Applied Sciences | Flashcards & Summaries

Lernmaterialien für Data Science an der BFH - Bern University of Applied Sciences

Greife auf kostenlose Karteikarten, Zusammenfassungen, Übungsaufgaben und Altklausuren für deinen Data Science Kurs an der BFH - Bern University of Applied Sciences zu.

TESTE DEIN WISSEN

The accuracy metric is best suited when ...

Lösung anzeigen
TESTE DEIN WISSEN

there are many classes

Lösung ausblenden
TESTE DEIN WISSEN

Which of the following is not a reason why data science technologies are attracting significant attention nowadays?

Lösung anzeigen
TESTE DEIN WISSEN

Data are difficult to transfer from databases

Lösung ausblenden
TESTE DEIN WISSEN

Finding the most profitable customer is an example of an unsupervised learning task.

Lösung anzeigen
TESTE DEIN WISSEN

False

Lösung ausblenden
TESTE DEIN WISSEN

Which statement about Bagging is NOT true:


Lösung anzeigen
TESTE DEIN WISSEN

the rows of the dataset are sampled

Lösung ausblenden
TESTE DEIN WISSEN

Which of these organizations would have the most challenge in applying supervised learning?

Lösung anzeigen
TESTE DEIN WISSEN

A grocery store that is trying to identify which of its loyalty-card-carrying customers will spend more than $100 next month

Lösung ausblenden
TESTE DEIN WISSEN

Hyperparamters...

Lösung anzeigen
TESTE DEIN WISSEN

are adjusted during model training.

Lösung ausblenden
TESTE DEIN WISSEN

Which of the following would you choose when deciding on a measure of central tendency for a data set that contains outliers?

Lösung anzeigen
TESTE DEIN WISSEN

Median

Lösung ausblenden
TESTE DEIN WISSEN

The residuals are...

Lösung anzeigen
TESTE DEIN WISSEN

... a measure of how close the targets are to their median value

Lösung ausblenden
TESTE DEIN WISSEN

Suppose we have trained a Decision Tree on a dataset D. Consider the split learned at the root of the tree. Which of the following is true if one of the datapoints in D is removed and we re-train the tree?

Lösung anzeigen
TESTE DEIN WISSEN

The split at the root will be different

Lösung ausblenden
TESTE DEIN WISSEN

Complete the sentence: The Pearson correlation coefficient ranges from ...

Lösung anzeigen
TESTE DEIN WISSEN

-1 to 1 and describes the linear correlation between two variables

Lösung ausblenden
TESTE DEIN WISSEN

Which statement is NOT true about feature importance in Random Forests:


Lösung anzeigen
TESTE DEIN WISSEN

it is measured by looking at the features give an advantage in the decision tree splits

Lösung ausblenden
TESTE DEIN WISSEN

You are building a medical test for a virus. Which metric is probably most important:


Lösung anzeigen
TESTE DEIN WISSEN

RMSE

Lösung ausblenden
  • 12077 Karteikarten
  • 247 Studierende
  • 15 Lernmaterialien

Beispielhafte Karteikarten für deinen Data Science Kurs an der BFH - Bern University of Applied Sciences - von Kommilitonen auf StudySmarter erstellt!

Q:

The accuracy metric is best suited when ...

A:

there are many classes

Q:

Which of the following is not a reason why data science technologies are attracting significant attention nowadays?

A:

Data are difficult to transfer from databases

Q:

Finding the most profitable customer is an example of an unsupervised learning task.

A:

False

Q:

Which statement about Bagging is NOT true:


A:

the rows of the dataset are sampled

Q:

Which of these organizations would have the most challenge in applying supervised learning?

A:

A grocery store that is trying to identify which of its loyalty-card-carrying customers will spend more than $100 next month

Mehr Karteikarten anzeigen
Q:

Hyperparamters...

A:

are adjusted during model training.

Q:

Which of the following would you choose when deciding on a measure of central tendency for a data set that contains outliers?

A:

Median

Q:

The residuals are...

A:

... a measure of how close the targets are to their median value

Q:

Suppose we have trained a Decision Tree on a dataset D. Consider the split learned at the root of the tree. Which of the following is true if one of the datapoints in D is removed and we re-train the tree?

A:

The split at the root will be different

Q:

Complete the sentence: The Pearson correlation coefficient ranges from ...

A:

-1 to 1 and describes the linear correlation between two variables

Q:

Which statement is NOT true about feature importance in Random Forests:


A:

it is measured by looking at the features give an advantage in the decision tree splits

Q:

You are building a medical test for a virus. Which metric is probably most important:


A:

RMSE

Data Science

Erstelle und finde Lernmaterialien auf StudySmarter.

Greife kostenlos auf tausende geteilte Karteikarten, Zusammenfassungen, Altklausuren und mehr zu.

Jetzt loslegen

Das sind die beliebtesten Data Science Kurse im gesamten StudySmarter Universum

Big Data & Data Science

FOM Hochschule für Oekonomie & Management

Zum Kurs
Data Science & BI

International School of Management

Zum Kurs

Die all-in-one Lernapp für Studierende

Greife auf Millionen geteilter Lernmaterialien der StudySmarter Community zu
Kostenlos anmelden Data Science
Erstelle Karteikarten und Zusammenfassungen mit den StudySmarter Tools
Kostenlos loslegen Data Science