Task 5 not as important

Question 1

How do detect the best model in step 4 ?

Answer 1

• Design a experimental conditions that lead to opposite qualitative predictions from the 2 models
• Qualitive test are often supported by quantitive tests
• the qualitive answer which fits better will tell u which model to choose

Question 2

What are some adavantaged of rules over logic models?

Answer 2

• rules do not have to be interpreted as universall true (default)
• can better represent strategic information about what to do
• Rules are good at finding the right plan but are bad at decision making

Question 3

What is meant by default ?

Answer 3

• which is a rough generalisations that admit exceptions

Question 4

What is the difference between logic and rule based system ?

Answer 4

• logic based system focus on deduction regarding thinking
• rule based system focus on SEARCH regarding thinking
• rule based system have less representational power but more computational

Question 5

What is meant by representational power ?

Answer 5

• How much knowledge about the world can be represented?

Question 6

What is meant by computational power ?

Answer 6

• How powerful and efficient are rule-based system

Question 7

What kind of processing strategie rule based models use ?

Answer 7

• Can be either serial or parallel:
• Conscious thought = serial processing
• unconscious thought parallel processing

Question 8

What is meant by slow incremental learning ?

Answer 8

• it describes a rule usefuleness via applying a numerical value towards it
• the stronger the rule the more value it has

Question 9

What kind of processing strategie rule based models use ? (in human being)

Answer 9

• Can be either serial or parallel:
• Conscious thought = serial processing
• unconscious thought parallel processing

Question 10

What is meant by a buffer ?

Answer 10

• Buffers are an interface between the porcedural memory and the other components of the ACTR
• can be either visual (perception) manuel (motor actions = pressing button) imaginal (working memory) retrieval (declarative memory), goal buffer
• The prdouction rules make use of different buffers to answer to answer the current goal step by step !
• One buffer hold one chunck

Question 11

Explain in single steps how the ACTR work ?

Answer 11

• 1 Cycle: After the current goal is decided the conflict resolution start (achiving a goal
• It first goes to procedural memory which asks the declarative memory if there is a solution
• If so then it send the retrieval result back to the current goal
  2 cycle: Current goal needs new information from declartive memory.(pooed goal) new production rules have to be formed to reach the goal (production complimations)-> since new rules have to be trained first we have to aply to an easier problem to the rules (transform goal)

Question 12

What is meant by archictectural assumption ?

Answer 12

• Makes general claim about the nature of human cognition

- present in all cognitive model

Question 13

What is meant by Auxiliary assumption ?

Answer 13

• a claims on how to deal with special task in a case which needs more flexibility

Question 14

How do we calculate the activation lvl of a chunck ?

Answer 14

• Activation Level = Base-Level Activation (number of times it has been rehearsed and the time that has passed from last rehersal) + Associative Activation (strength of bond btw an item and the required chunk )

Question 15

What is meant by aductive reasoning ?

Answer 15

• running a rule backward to explain what is currently happening
• risky but good for hypothesis
• Example: if someone walks angry out of the class u would assume he just got a bad grade but there are other possibilities