predict if the person will pay back the money. People have various (binary) features: • do we know their Address (a)? • do they have a Criminal record (c)? • high Income (i)? • Educated (e)? • Old (0)? Unemployed (u)? Assume: (Y = paid back, N = not); using cost for each feature as follows: wa = 1, wc = -5, wi = 4, we = 1, wo = 0, wu = -1 +a, -c, +i, +e, +o, +u: Y (score 1+4+1+0-1 = 5) -a, +c, -i, +e, -o, -u: N (score -5+1=-4) +a, -c, +i, -e, -o, -u: Y (score 1+4=5) -a, -c, +i, +e, -o, -u: Y (score 4+1=5) -a, +c, +i, -e, -o, -u: N (score -5+4=-1) -a, -c, +i, -e, -o, +u: Y (score 4-1=3) +a, -c, -i, -e, +o, -u: N (score 1+0=1) +a, +c, +i, -e, +o, -u: N (score 1-5+4+0=0) (a) If the score threshold for predicting to pay back is above 2, and the Next person is (+a, +c, +i, -e, +o, +u). Will we get paid back? Explain your answer.
predict if the person will pay back the money. People have various (binary) features: • do we know their Address (a)? • do they have a Criminal record (c)? • high Income (i)? • Educated (e)? • Old (0)? Unemployed (u)? Assume: (Y = paid back, N = not); using cost for each feature as follows: wa = 1, wc = -5, wi = 4, we = 1, wo = 0, wu = -1 +a, -c, +i, +e, +o, +u: Y (score 1+4+1+0-1 = 5) -a, +c, -i, +e, -o, -u: N (score -5+1=-4) +a, -c, +i, -e, -o, -u: Y (score 1+4=5) -a, -c, +i, +e, -o, -u: Y (score 4+1=5) -a, +c, +i, -e, -o, -u: N (score -5+4=-1) -a, -c, +i, -e, -o, +u: Y (score 4-1=3) +a, -c, -i, -e, +o, -u: N (score 1+0=1) +a, +c, +i, -e, +o, -u: N (score 1-5+4+0=0) (a) If the score threshold for predicting to pay back is above 2, and the Next person is (+a, +c, +i, -e, +o, +u). Will we get paid back? Explain your answer.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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