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Example of a Multiset of State-Action Pairs
A multiset is a collection where elements can be repeated. This concept can be applied to represent a group of state-action pairs from reinforcement learning. For instance, a multiset containing several identical (s, a) pairs would be written in set-like notation as {(s, a), ..., (s, a)}.
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Ch.4 Alignment - Foundations of Large Language Models
Foundations of Large Language Models
Computing Sciences
Foundations of Large Language Models Course
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Example of a Multiset of Tuples
Example of a Multiset of State-Action Pairs
A data processing task results in the following sequence of output values: 'apple', 'banana', 'apple', 'orange', 'banana', 'apple'. Which of the following notations correctly represents these values as a single, unordered collection where the number of times each value appears is preserved?
Comparing Collection Notations
Match each example notation with the description of the type of collection it represents.
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An agent's experience is recorded as a sequence of four state-action pairs: first
(s1, a1), then(s1, a2), then(s2, a1), and finally(s1, a1). How would this collection of four interactions be represented as a multiset?An agent's experience over five time steps is recorded as the following multiset of state-action pairs:
D = {(s1, a1), (s2, a2), (s1, a1), (s3, a1), (s1, a1)}. If this data were instead stored as a standard set, which only contains unique elements, what crucial information would be lost?Counting Occurrences in a State-Action Multiset