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ProbAligner Method: Inference (work in progress) • Example Question: Is it true that a decomposer is an organism that recycles nutrients? • Example Rules (antecedent => consequent) : 1. Decomposers are living things that break down and recycle 2. Decomposers are living things that recycle their[consumers] nutrients into the soil Question Rule 1 Rule 2 36
Runtime (seconds) ProbAligner Results (work in progress) • Faster • Few variables per rule (independent of extracted rule length) • No existentially quantified variables => Better scaling • More robust 200 180 160 140 120 100 80 60 40 20 0 Original Approach ProbAligner 0 1 2 3 4 5 6 7 Number of Extracted Rules 37
Page 1 and 2: The View from AI2 Oren Etzioni, CEO
Page 3 and 4: AI2 Chronology and “Geography”
Page 5 and 6: Scientific Advisory Board (SAB) Ada
Page 7 and 8: Common Themes in AI2 Projects • A
Page 9 and 10: High-level observations about knowl
Page 11 and 12: Do we need a body to acquire common
Page 13 and 14: Factual Knowledge for 4 th Grade Sc
Page 15 and 16: These KBs are fact rich but knowled
Page 18 and 19: Nell lexical
Page 20 and 21: IE over Web sentences suffers from
Page 22 and 23: Obtaining Visual Knowledge 1. Detec
Page 27 and 28: Facts are necessary, but not suffic
Page 29 and 30: Reasoning Method • Deductive reas
Page 31 and 32: Enhancements for Tractability 1. Ad
Page 33: Probabilistic Alignment over graphs
Page 37: Join Us! 39

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