Artificial Intelligence and Data Mining

Question 1

AI

Answer 1

developing computer systems that can perform tasks that traditionally can only be done by humans
e.g. self driving car, real time translation

Question 2

Data mining/machine learning

Answer 2

• aim to find useful data in large data sets

e. g. Market segmentation = find categories of customers with similar buying behaviour

Question 3

Supervised learning

Answer 3

learn a classifier from a set of labelled examples so that you can classify new unlabelled examples in the future
e.g. Facial recognition, diagnosing cancer from genetic test

Question 4

Unsupervised learning

Answer 4

• cluster set of unlabelled examples to learn natural categories/types of objects
• identifying different categories of customers on retail website

Question 5

Learning unusual patterns

Answer 5

• anomaly detection
• learn model of “normal” database records
• use this model to test for anomalies
• anomalies can be interesting or errors

Question 6

Defend against network attacks

Answer 6

• set of rules to detect known types of attacks BUT unable to detect new attacks
• anomaly detection, anomaly treated as an attack

Question 7

Cluster based anomaly detection

Answer 7

• map network connects into feature space
• cluster similar connections
• use large cluster to represent normal traffic