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By: Pradeep Pujari

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Working mostly in Search domainSearch = IR + ML + NLPWho am I?Works for

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Contributing to SolrSherlock- Open Source ProjectWho am I?http://solrsherlock.github.io/SolrSherlock/

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What is Sentiment Analysis?A linguistic analysis technique that identifiesThe movie is great.The movie stars Mr. XThe movie is horrible.opinion early in a piece of text.

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ChallengingToo easy Too hardDifficultymisclassificationWhat is Sentiment Analysis?

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SentimentAnalysisNLPCognitive ScienceWhat is Sentiment Analysis?

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Human can easily understandemotions.Can a machine be trained to do it?What is Sentiment Analysis?

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Solr ?Http Request ServletAdminInterfaceUpdate ServletStandardRequestHandlerCustomRequestHandlerResponseWriterSolr CoreLuceneAnalysis UIMAconfig CachingUpdateHandler

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Linguistics moduleStems, Lemmas and Synonymsmulti language capabilityCJKAnalyzer, UIMA AnalyzersUIMA integrationUpdateProcessorChainWhy Solr ?

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Why Solr ?Extract domain specific entitiesand conceptsTime and CostSolr Set Up – 5 minsUIMA Annotators - 5 daysEnrich text, write to dedicated field

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Tagging entities in review textUsecaseI wasnt really in the market for another tablet, but my girlfriend endedup getting one for me so she got me on this one. I would like to say thatthis tablet reminds me of the first Motorola Droid smartphone that cameout several years back. The phone jam packed a ton of bells & whistlesinto its hardware and software to give a lot of bang for your buck. Thisis what it feels like amazon has done with the Kindle Fire 8.9. They haveput a lot of advanced hardware and innovative software, so for theaverage user, specially someone who absorbs a lot of media, you get alot for the price. But just because you get a lot for the price, doesntmean it is without its flaws.

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UsecaseConsumer feedback about productsWhich product features are more relevantPolarity

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Digital SLR with Full 1080p HD VideoThere are many preprogrammed scene modesthat make this a very easy camera to use.The picture quality is beyond belief, andeven better for the price.Price:Usecase

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Why UIMA ?UIMA Framework manages componentsand data flow – No codingDeploy pipeline of analysis enginesAEs wrap NLP algorithmsPersonPlaceorganizationLanguageDetectionAggregate analysis engineSentenceAnnotatorPOSAnnotatorNER

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IndexLuceneSolr UpdateRequestProcessorSolrQParser DataSolr+UIMAUIMA AE

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NLP+UIMAUse POS in query understandingboosting termsSynonym expansionExtract concepts/entitiesFaceting using entitiesIdentify places in queryand use spatial queries

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Ideas: Sentiment Analysis AppIdentify Subjective Sentences from textRemove noisy sentences– Regex, conditional probabilityGraph min cut – LingPipeSubjectivity LexiconsDiscard Facts and Objective Sentences

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SubjectivitydetectorSubjectiveObjectivePolarityClassifierIdeas: Sentiment Analysis App

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Sentiments Intensity - SentiWordNetWordNet-Affect: WordNet +annotated conceptsIdeas: Sentiment Analysis AppHybrid model with adding dictionary

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UpdateHandler withprocessor chainRemove DuplicatesprocessorLoggingprocessorCustom TransformprocessorIndexprocessorUpdate Processor ChainTextAnalyzersLuceneLucene IndexSentence DetectionprocessorSentiment ClassifierCompany NameAnnotatorSentiment ScoreprocessorProduct Reviews

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http://lucene.apache.org/solr/http://uima.apache.org/http://alias-i.com/lingpipe/demos/tutorial/sentiment/read-me.htmlhttp://openie.cs.washington.edu/

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Questions ?

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Thank YouEmail: pradeepp@rocketmail.com