Query-Performance prediction: Setting the Expectations
Straight
Date : 2014/09/18Author : Niket Tandon , Gerard de Melo , Fabian
Suchanek , Gerhard WeikumSource : WSDM14Advisor : Jia-ling
KohSpeaker : Shao-Chun Peng1WebChild: Harvesting and Organizing
Commonsense Knowledge from the
WebOutline2IntroductionApproachExperimentalConclusion
Introduction3What is knowledge bases ?Web searchtext
analyticsRecommendations in social media
Introduction4MotivationComputers completely lack this kind of
commonsense knowledge
Round and red
Introduction5How about teach computer?
Round and red
Introduction6PurposeAutomatically extracting and cleaning
commonsense properties from the Web
Introduction7salient characteristics and unique
qualitiesFine-grained assertionsDisambiguated argumentsMinimal
supervisionOutline8IntroductionApproachRange PopulationDomain
PopulationComputing AssertionsExperimentalConclusion
Sub task9Range PopulationDomain PopulationComputing
Assertions
Range Population10Candidate GatheringGraph
ConstructionEdgeWeightingLabel Propagation (LP)hasTaste:
{delicious, spicy, hot, sweet, etc...}Range Population11Candidate
GatheringGoogle N-gram corpus(5-gram)checking for the presence of
the word r , any of its synonyms40000 adj. for all relation
Range Population12Graph Construction3 kinds of edgeedges among
wordsedges between two senses u-ai and w-aj edges between words and
senses
Range Population13EdgeWeightingedges among words
edges between two senses u-ai and w-aj taxonomic relatedness
within WordNet [17]edges between words and sensesthe sense
frequencies as a basis for edge weights
glosses of their respective hyponyms and hypernyms13Range
Population14Label Propagation (LP)
ABDCABDCRelaton:0.8Dummy:0.2Relaton:0.7Dummy:0.30.80.2Relaton:0.8Dummy:0.20.80.2Relaton:0.1Dummy:0.9Domain
Population15Candidate Gathering*Graph
ConstructionEdgeWeightingLabel Propagation (LP)Beef: hasTaste
sour-a2:the taste experience when vinegar or lemon juice is
taken . . (vinegar, sour-a2) and (lemon juice, sour-a2)gloss for
sour-a2 reads the taste experience when vinegar or lemon juice is
taken . . . . We generatetwo assertions from this: (vinegar,
sour-a2) and (lemon juice, sour-a2)15Computing Assertions
16Graph Construction*EdgeWeighting*Label Propagation (LP)
Outline17IntroductionApproachExperimentalConclusion
Range Population18
Domain Population19
Computing Assertions20
Outline21IntroductionApproachExperimentalConclusion
