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Class 4.docx

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CISC 101
David Skillicorn

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Class 4.1 10/2/2012 10:27:00 AM qThe story so far… Logical / boolean expressions  -evaluate to T/F  -comparisons ,>=,==,~=  -& | ~ if statements language properties qazaaazsz 50% content channel (big words) 50% Internal state channel (little words) -new, topics (content channel) -authorship - deception -deception -first language -age internal state -gender -personality -intentions -sentiment  cant frequencies of each word in each document words document 0 1 0 0 0 3 0 0 7 0 0 total frequency of use frequencies count but order doesn’t!!!!! Class 4.2 10/2/2012 10:27:00 AM Prediction power (of an attribute) -relationship between attribute values and class attribute value “match” Attribute Class 1 A 1 B 2 A 4 C 3 B 2 A 1 b Class A B C 1 |||| 2 ||||| 3 ||||||| 4 ||||| attri good predictor full boxes and empty boxes A B C
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