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FIWARE.Question.Tech.Data.CEP.Proton CEP: How to count distinct instances in temporal context

        Details

        • Type: Monitor
        • Status: Closed
        • Priority: Major
        • Resolution: Done
        • Affects Version/s: None
        • Fix Version/s: 2021
        • Component/s: FIWARE-TECH-HELP
        • Labels:

          Description

          Created question in FIWARE Q/A platform on 16-02-2016 at 18:02
          Please, ANSWER this question AT http://stackoverflow.com/questions/35438731/proton-cep-how-to-count-distinct-instances-in-temporal-context

          Question:
          Proton CEP: How to count distinct instances in temporal context

          Description:
          I wish to count the number of distinct visitors to a store each half an hour.

          I know I will need:

          the temporal context (half an hour)

          What kind of EPA should I create to count distinct visitor ids?

          I suppose I will need an internal segmentation by visitorId?

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            backlogmanager Backlog Manager added a comment -

            2016-02-16 21:05|CREATED monitor | # answers= 0, accepted answer= False

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            backlogmanager Backlog Manager added a comment - 2016-02-16 21:05|CREATED monitor | # answers= 0, accepted answer= False
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            TALI Fabiana Fournier added a comment -

            Assigned to the new CEP GE owner

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            TALI Fabiana Fournier added a comment - Assigned to the new CEP GE owner
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            urishani Uri Shani added a comment -

            Sorry for the delay on this one. Checking with CEP langauge experts for an answer.

            • Uri
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            urishani Uri Shani added a comment - Sorry for the delay on this one. Checking with CEP langauge experts for an answer. Uri
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            urishani Uri Shani added a comment -

            Here you go:

            • The EPA should be of type Aggregate.
            • Yes, you need internal segmentation context by visitorId.

            See the documentation for a sample which demonstrates how to perform count:
            https://github.com/ishkin/Proton/tree/master/documentation/sample/fraud
            A pdf doc included.

            Hope this help.

            • Uri
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            urishani Uri Shani added a comment - Here you go: The EPA should be of type Aggregate. Yes, you need internal segmentation context by visitorId. See the documentation for a sample which demonstrates how to perform count: https://github.com/ishkin/Proton/tree/master/documentation/sample/fraud A pdf doc included. Hope this help. Uri
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            mev Manuel Escriche added a comment -

            Uri, I check the issue hasn't been answered on stackoverflow yet.

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            mev Manuel Escriche added a comment - Uri, I check the issue hasn't been answered on stackoverflow yet.
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            backlogmanager Backlog Manager added a comment -

            2016-02-23 12:05|UPDATED status: transition Answered| # answers= 1, accepted answer= False

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            backlogmanager Backlog Manager added a comment - 2016-02-23 12:05|UPDATED status: transition Answered| # answers= 1, accepted answer= False
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            backlogmanager Backlog Manager added a comment -

            2016-02-27 12:05|UPDATED status: transition Finish| # answers= 2, accepted answer= False

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            backlogmanager Backlog Manager added a comment - 2016-02-27 12:05|UPDATED status: transition Finish| # answers= 2, accepted answer= False

              People

              • Assignee:
                urishani Uri Shani
                Reporter:
                backlogmanager Backlog Manager
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                  Updated:
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