COG166 Quiz #3

1. [T/F] Given a goal of "making machines do things that would require intelligence if done by men", understanding language has always been thge "holy grail" of artificial intelligence.

2. Who created SHRDLU?

3. Briefly, describe the world in which this one armed robot, SHRDLU, "lived".

4. [T/F] SHRDLU is a spoken dialog system.

5. [T/F] According to SHRDLU's creator, "Language is a process of communication between people, and is inextricably enmeshed in the knowledge that those people have about the world.".

6. [T/F] Knowledge of SHRDLU's world was represented as a semantic net in the form of relations -- lists of objects and properties.

7. [Multiple Choice] "A pyramid is a block".
   1. (A PYRAMID IS A BLOCK)
   2. (PYRAMID ISA BLOCK)
   3. (#BLOCK :PYRAMID)

8. [T/F] Echoing Saussure, SHRDLU's creator notes: "Definitions are circular, with the meaning of each concept depending on the other concepts."

9. [T/F] SHRDLU's world was "perceived", in part, by a television camera reording the image, which generated a digital representation of the image in the form of a series of numbers that represent light intensities. The computer then analyzed these numbers to find recognizable patterns that are the basic visual elements that ultimately difine a visual language. Rather than phonemes, syllables, and words, the visual primitives are lines, planes, corners, shapes, and forms.

10. [T/F] There is a visual grammar to describe the rules for combining lines, corners, planes, surfaces, shapes, and forms to create physical objects.

11. [T/F] SHRDLU's creator's contribution to natural language research was to make evident that understanding language requires a process in which various types of analysis, both syntactic and semantic, have to occur in an integrated manner. He demonstrated that linguistic understanding could not happen without integrating a knowledge of a much broader context: "the world".

12. [T/F] Natural language is a simple linear system.