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The real-time Barcelona urban mobility ( with NoSQL technologies )Marc Pous, Daniel Villatoro, F. Xavier Mercadal and Arol Viñoles NoSQL matters Barcelona 2012

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Credits: Inception

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Credits: Martin Roemers

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The TweetBeat of the City: Microblogging Used forDiscovering Behavioural Patterns during the MWC2012D. Villatoro, J. Serna, V. Rodríguez and M. Torrent

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Video 11-S rally

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Commutio iPhone Apphttp://commutio.bdigital.org @commutio

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[{"user_id":"16c92e53509a2aac345ddf2b1846d81042f69820", "latitude", "41.385735","longitude": "2.136139", "altitude":"65.00", "timestamp": "Oct 6, 2012, 11:30:53 AM GMT 02:00"}][{"user":"F.Xavier Mercadal Mir","question":"4fd7155aa513f2a4caaa2f0d","answer":"","score":0,"time":20,"correct":false,"timestamp":"2012-10-06T09:31:19.000Z","_id":"506ffa23ab1c33182e000278"}]

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{ loc : { lat : 40.413895, lon : 2.176494 }}> db.moves.ensureIndex ( { loc : "2d" } )> db.moves.find ( { loc : { $near : [40.413987, 2.17.6499 ] } } )

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Conclusions● Social Media sources can serve as a social sensing platform.● Citizens as sensors.● Real-time monitoring of the Barcelona mobility network.● New route optimizers.

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Why NoSQL matters?● Hadoop + Mahout for big data and batch processes.● MongoDB for document storage and GeoSpatial Indexing (2D).● REDIS for cache and save HTTP requests.● Neo4j for graphs and operations.

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Thanks!Questions?Marc Pous i Marín @gy4nt