
Curs7
Authored by Alex Zk
Computers
University
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“Binning”: daca avem o cutie (“bin”) conținând valorile 4, 8, 9, 15, prin netezirea folosind
capetele intervalului obținem:
4, 4, 15, 15
9, 9, 9, 9
4, 4, 4, 15
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sumarul de 5 numere (Five number summary) conține printre altele:
Cuartilele și Cvintilele
Minimul și maximul
Media și mediana
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
În cazul normalizării Min-Max, mulțimea {1, 2, 3, 6} devine:
{0.2, 0.4, 0.6, 0.9}
{0.1, 0.2, 0.3, 0.6}
{0.0, 0.2, 0.4, 1}
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suportul unei reguli de asociere X → Y este dat de formula:
Suport (X∪Y) / Suport (X)
Suport (X∪Y)
Suport (X∩Y)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Varianța (Dispersia) este:
Radical din abaterea standard sigma
Pătratul abaterii standard sigma
Varianța nu este legata de abaterea standard sigma
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discretizarea face parte din etapa de:
Vizualizare
Preprocesarea datelor
Extragerea modelelor și descoperirea cunoștințelor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Algoritmii de clasificare sunt de tipul:
Descriptiv
Prescriptiv
Predictiv
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