

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
A university exam paper for the artificial intelligence basics b course (cs06056) at hunan university. The exam covers various topics including search algorithms, first-order logic, bayesian inference, and clustering. Students are required to answer multiple-choice questions based on the provided information.
Typology: Exams
1 / 3
This page cannot be seen from the preview
Don't miss anything!


a. 宽度有限搜索 (5分) b. 深度优先搜索 (5分) c. 一致代价搜索 (5分) d. 爬山法搜索 (5分) e. A*树搜索 (5分) 【答案】(a) A,B,D,F,G,I (b) A,B,F,M,G,N,T (c) A,B,G,D,K,F,N,R
(d) A,B,G,M陷入局部最优找不到解 (e) A,B,G, D,K,N,R
(i) 有效的 (ii) 有效的 (b)已知如下一阶逻辑语句
(a) 如果一个女性进行乳房X光摄影成阳性,她有乳腺癌的概率是多少?给出具体步 骤;(8分) (b) 回答是与否:女性有乳腺癌的先验概率是否在计算“一个女性进行乳房X光摄影成 阳性,她有乳腺癌的概率”中被用到?(5分) (c) 如果一个女性连续两次进行乳房X光摄影成阳性,基于朴素贝叶斯的假设,那么 她有乳腺癌的概率是多少?(12分) 【答案】 (a) 已知:P(C)=0.01 P(M|C)=0.8 P(M|┓C)=0. P(C|M)=P(M|C)P(C)/P(M)=0.008α P(┓C|M)=P(M|┓C)P(┓C)/P(M)=0.09504α 归一化之后P(C|M)=7.76%
(b) 是的,被用到了。
(c) P(C|M^2 )=P(M^2 |C)P(C)/P(M 2 )=0.80.80.01α=0.0064α P(┓C|M 2 )=P(M^2 |┓C)P(┓C)/P(M^2 )=0.0960.0960.99α=0.00912α