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Tatsuyuki Sekine reported on his study on Hbb coupling measurement.
First he reproduced Tanaka-san's cut-based results for LHeC (1ab-1).
Then he ran BDT with preselection on Njet. Nbjet and Nelectron, and
used other variables for BDT training. He obtained sigma(g)/g=0.007
instead of 0.009 in cut-based. He will try further improvement possibility.