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Recommender Systems > 11 - Guest Lecture > Flashcards

11 - Guest Lecture Flashcards

1
Q

What are Modifiers and name examples?

A
  • One word changed by another
  • Very sunny (several times sunny)
  • Big plane (Jumbo)
  • Not sunny (Cloudy)
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2
Q

What is a Homonym and name examples?

A
  • One word with different meanings
  • Set of dishes, Set of wind, movie set, tv set, tennis set
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3
Q

What is a Synonym and name examples?

A
  • Different word with same meanings
  • Animal, Creature, Beast, Pet
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4
Q

What is an Antonym and name examples?

A
  • Words with opposite meanings
  • Day and Night, In and out, Big and small
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5
Q

What is an Auto Antonym and name examples?

A
  • One word with two opposite meanings
  • Running fast and stuck fast
  • He left the house and he left his key
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6
Q

What is an Idiom and name examples?

A
  • Sequence of words that have meaning that is not derived from
  • A piece of cake
  • Spill the beans
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7
Q

What is meaning and semiotics?

A
  • Semiotics (also calles semiotic studies) is the study of sign processes (Semiosis) and meaning making
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8
Q

What is the Semiotic Triangle?

A
  • Symbol means Meaning
  • Meaning determine Denotation
  • Symbol denotes Denotation
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9
Q

What are the levels of meaning?

A
  • Phrase (context-free meaning)
  • Utterance (meaning in context)
  • Communication (intentional meaning)
  • Example: This red apple is very delicious. Receiver creates a picture in the inner mind
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10
Q

What is Phrase (context-free meaning)?

A
  • Could be uses in different situations - ambiguous meaning
  • Types: All shades of red, all grades of delicious, all grades of ripeness
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11
Q

What is Utterance (meaning in context)?

A
  • Specific (potentially subjective) - Less ambiguous meaning
  • Entities: Specific red apple, subjective red, subjective delicious, specific ripeness
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12
Q

What is Communication (intentional meaning)?

A
  • Used in a specific situation
  • This red apple is very delicious. You should also try one, too!
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13
Q

What is important about context?

A
  • Different “strength” of meaning in different contexts
  • Cold - Noth pole and Maldives
  • Big - Elephant and Bacteria
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14
Q

What is Qualia?

A
  • Different Meanings to different people
  • Subjective association of words to physical properties - subjective color perception
  • Black blue or gold white dress
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15
Q

What senses have Qualia?

A
  • All senses have Qualia
  • Sight (vision)
  • Hearing (audition)
  • Taste (gestation)
  • Smell (olfaction)
  • Touch (tactition)
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16
Q

How to distinguish between synonyms?

A
  • “The mighty ruler puts the wooden ruler on the table”
  • Synonyms can usually only be used in certain contexts
  • Words have paradigmatic relation if they appear in similar contexts
17
Q

How does automatic tagging of articles work?

A
  • Determine keywords
  • IQE these keywords
  • Query against existing tag-database
18
Q

How does show related articles work?

A
  • Determine keywords
  • IQE these keywords
  • Query with AND/Confidence for keywords and OR for Synonyms against other documents
19
Q

What are Associations?

A

Associations are mental connections between words

20
Q

How to Topic Detection in Text?

A
  • Compute Association Strength of words
  • Build word cluster based on “Associate Strength” and “Associative Gravity”
  • Segment text

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