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courses:rg:2014:crf [2014/10/28 14:18]
varisd 		courses:rg:2014:crf [2014/10/28 14:22] (current)
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 3. Which of the following features are meaningful? Why? 3. Which of the following features are meaningful? Why?
  
-a) <latex>X_i</latex> == can +a) <latex>X_i</latex> == "can" 
-b) <latex>X_i</latex> == can && <latex>Y_i</latex> == N +b) <latex>X_i</latex> == "can" && <latex>Y_i</latex> == N 
-c) <latex>X_i</latex> == can && <latex>Y_{i-1}</latex> == N +c) <latex>X_i</latex> == "can" && <latex>Y_{i-1}</latex> == N 
-d) <latex>X_{i-1}</latex>== can && <latex>Y_i</latex> == N && <latex>Y_{i-1}</latex> == V +d) <latex>X_{i-1}</latex>== "can" && <latex>Y_i</latex> == N && <latex>Y_{i-1}</latex> == V 
-e) <latex>X_{i-1}</latex> == can && <latex>Y_i</latex> == N && <latex>Y_{i+1}</latex> == V +e) <latex>X_{i-1}</latex> == "can" && <latex>Y_i</latex> == N && <latex>Y_{i+1}</latex> == V 
-f) <latex>X_{i-2}</latex> == can && <latex>Y_i</latex> == V && <latex>Y_{i-1}</latex> == N +f) <latex>X_{i-2}</latex> == "can" && <latex>Y_i</latex> == V && <latex>Y_{i-1}</latex> == N 
-g) <latex>X_{i+3}</latex> == can && <latex>Y_i</latex> == N && <latex>Y_{i-2}</latex> == V +g) <latex>X_{i+3}</latex> == "can" && <latex>Y_i</latex> == N && <latex>Y_{i-2}</latex> == V 
-h) <latex>X_1</latex> == The && <latex>Y_{i-1}</latex> == N && <latex>Y_i</latex> == N+h) <latex>X_1</latex> == "The" && <latex>Y_{i-1}</latex> == N && <latex>Y_i</latex> == N
 i) <latex>X_i</latex> has more letters than <latex>X_{i-1}</latex> && <latex>Y_i</latex> == N i) <latex>X_i</latex> has more letters than <latex>X_{i-1}</latex> && <latex>Y_i</latex> == N
 j) <latex> X</latex> contains word "dog" && (<latex>Y_i</latex> == N || <latex>Y_i</latex> == V) j) <latex> X</latex> contains word "dog" && (<latex>Y_i</latex> == N || <latex>Y_i</latex> == V)
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 **Hint2:** The vertical bar in <latex>y|_v</latex> does not mean conditional probability, see its definition under Formula 1. **Hint2:** The vertical bar in <latex>y|_v</latex> does not mean conditional probability, see its definition under Formula 1.
  
-d) (optional) +d) (optional) Let's suppose, that
-  Let's suppose, that+
     <latex>\lambda_1</latex> = 1     <latex>\lambda_1</latex> = 1
     <latex>\lambda_2</latex> = 1     <latex>\lambda_2</latex> = 1

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