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...Hep data format activity there is literally a flurry for some time focus on columnar formats storage or conversion dianna parquet awkward array femtocode oamap etc iris idds service x doma r d root project rdataframe others coffea google tim march public cloud many projects leverage clouds hepcloud aws htcondor iccep gcpm gcp atlas ocean other independent the synthesis why not combine all these ideas analysis using e g platform with friendly https apache org suitable efficient memory representation pandas pydata that python oriented physicists find useful we should learn quite lot how got here august informal discussion started andrew hanushevsky ross thomson september conceptualized october formalized boarded engineer guilhem tesseyre november onwards various approaches investigated and tried february physics analyst shawfeng dong slac acf goals i demonstrate use of are only addressing as language demonstration has two aspects workflow needed flow setup this usually requires running a...