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    Reconstruction Group Meeting

    → US/Eastern
    Description

    Zoom coordinates:

    Meeting Notes

      • 11:00 → 11:05
        Introduction 5m
        Speakers: Chandradoy Chatterjee (INFN Trieste), Dr Derek Anderson (Thomas Jefferson National Accelerator Facility), Shujie Li (Lawrence Berkeley National Laboratory)
      • 11:05 → 11:30
        Streaming Reco WS Recap 25m
        Speaker: Dr Derek Anderson (Thomas Jefferson National Accelerator Facility)
        TimesliceStrawmanV3_epicStreamingRecoWS.d24m8y2026.pdf
        TimesliceStrawmanV3_epicStreamingRecoWS.d24m8y2026.pptx
        UpdatedTimesliceDiagramV3.d24m8y2026.png
        • Workshop info
          • https://indico.bnl.gov/event/33464
          • Goal was to define priorities/next steps to advance (towards) streaming reconstruction
          • Topics:
            • (08.19 Morning) Prototype timeframe splitters, event identification, and event classification algorithms/modules
            • (08.19 Afternoon) Reconstruction overview/status
            • (08.20 Morning) Streaming data -- processing/visualization
            • (08.20 Afternoon) Streaming data -- testing/validation
            • (08.21 Morning) Priorities, next steps
          • Extensive live notes available from indico page!
        • Key take-aways (from Derek's perspective)
          • Will have 3 initial event identification algorithms to support (Takuya, Dmitry, and Marco) and 1 initial event classification algorithm (Marco)
          • Critical to make sure we adhere to our design choices of strict separation of content vs. configuration and algorithmic vs. framework content
          • Extending tracking reco to include time not complicated, but not clear on calorimeter (or PID) side
          • Priorities for simulation include completing suite of advanced digitization algorithms, pursuing GenAI for background-mixed samples
          • Aiming to establish initial testing/validation dataset for event building. Will consist of many different background-mixed processes (w/ adjusted stats) in same source files
        • Next steps
          • Finalize timeframe builder requirements document by end of August
          • Have testing/validation dataset prepared for 26.09.0 campaign
          • Implement minimum-viable product of Takuya's timeframe splitter by mid-September
          • Implement initial performance metrics as benchmark by mid-September
      • 11:30 → 11:55
        PR Closure Policy 25m
        Speakers: Chandradoy Chatterjee (INFN Trieste), Dr Derek Anderson (Thomas Jefferson National Accelerator Facility), Shujie Li (Lawrence Berkeley National Laboratory)
        • Strawman Policy
          • Draft or open PRs older than 6 months which meet the following conditions are candidates for closure:
            • No commits (other than routine merges of main) in the last 6 months
            • No comments/discussion in the last 6 months
          • Closure procedure:
            • (1) Maintainer will notify author in PR discussion of impending closure
            • (2) If either no response in 5 business days or confirmation from author, maintainer will close PR 
      • 11:55 → 12:00
        AOB 5m
        Speakers: Chandradoy Chatterjee (INFN Trieste), Dr Derek Anderson (Thomas Jefferson National Accelerator Facility), Shujie Li (Lawrence Berkeley National Laboratory)