refinementsを使ってみた話

by Takeo Fujita

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SFpOFNFOUTΛ ࢖ͬͯΈͨ࿩ !ULFP

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ࣗݾ঺հ w !ULFP w HSJNPJSFͱ͍͏ձࣾͰεϚϗͷήʔϜ࡞ͬͯ·͢ w αʔόʔαΠυશ෦୲౰ʢΠϯϑϥؚΊʣ

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ࠓ೔ͷ಺༰ w ήʔϜͷӡ༻Ͱࣦഊͨ͠࿩ͱ w ͦͷରԠͷதͰSFpOFNFOUTΛ࢖ͬͯΈͨ࿩ w SVCZͷόʔδϣϯ͸Ͱ͢

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σʔλߋ৽ϑϩʔ Ҏલ w ϚελʔσʔλΛεςʔδϯά؀ڥͷ؅ཧը໘͔Β Πϯϙʔτ ϓϥϯφʔ w ࣮ػ֬ೝ ϓϥϯφʔ w Τϥʔௐࠪ ΤϯδχΞ w σʔλमਖ਼͠ɺ࠶౓Πϯϙʔτɺ֬ೝ ϓϥϯφʔ w Կ౓͔܁Γฦ͢ w ௚ͬͨΒຊ൪΁

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ϑϩʔվળ w ΤϥʔͷݪҼ͸୯७ͳσʔλೖྗϛεͰ͋Δ͜ͱ͕ ଟ͍ w νΣοΫΛࣗಈԽ w ΤϥʔௐࠪෆཁʹͳΕ͹ɺೋਓͰ΍͍ͬͯͨͷ͕Ұ ਓͰ׬݁͢ΔΑ͏ʹͳΔ

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σʔλߋ৽ϑϩʔ վ w ϚελʔσʔλΛεςʔδϯά؀ڥͷ؅ཧը໘͔Β Πϯϙʔτ ϓϥϯφʔ w σʔλΛνΣοΫ͢Δδϣϒ͕ࣗಈͰ૸ͬͯɺ͓͔ ͠ͳՕॴ͕͋Ε͹௨஌ w σʔλमਖ਼͠ɺ࠶౓Πϯϙʔτ ϓϥϯφʔ w Կ౓͔܁Γฦ͢ w ࣮ܰ͘ػͰ֬ೝ w ຊ൪΁

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࠷ॳͷ࣮૷ ࣦഊ w WBMJEBUJPOΛ࢖͏ w ผNPEVMFʹ෼͚͓͍ͯͯνΣοΫ͢Δͱ͖ʹ NPEVMFΛJODMVEF͢Δ

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ྫ w ࣮ࡍͷίʔυͱ͸ҧ͍·͢ DMBTT2VFTU"QQMJDBUJPO3FDPSE IBT@NBOZRVFTU@SFXBSET FOE DMBTT2VFTU3FXBSE"QQMJDBUJPO3FDPSE FOE

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NPEVMF2VFTU7BMJEBUPS FYUFOE"DUJWF4VQQPSU$PODFSO JODMVEFEEP WBMJEBUFT@QSFTFODF@PGOBNF WBMJEBUFT@QSFTFODF@PGRVFTU@SFXBSET FOE FOE DMBTT.BTUFS%BUB7BMJEBUJPO+PC JODMVEF4VDLFS1VODI+PC EFGQFSGPSN 2VFTUJODMVEF 2VFTU7BMJEBUPS JOWBMJE@SFDPSET2VFTUTFMFDU JOWBMJE OPUJGZ@UP@TMBDL JOWBMJE@SFDPSET FOE FOE

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w ͜ΕͰ෦෼తͳ͕ΒνΣοΫ͕ࣗಈԽͰ͖ͨʂʂ w ΊͰͨ͠ΊͰͨ͠ w ͷ͸͕ͣͩͬͨʜ

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͋Δ೔ͷࣄ݅ w Πϯϙʔτͨ͠͸ͣͷσʔλ͕ೖ͍ͬͯͳ͍ w ΍Γ௚͢ͱೖͬͨΓೖΒͳ͔ͬͨΓ

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ͳͥʁ w JODMVEF͢ΔͱͦΕҎ߱ͦͷϓϩηεͰ͸ͣͬͱ JODMVEF͞Εͨ·· w JODMVEFࡁΈͩͱ௥ՃͷWBMJEBUJPO͕૸ΔͨΊɺσʔ λͷ౤ೖॱʹΑͬͯ͸TBWFʹࣦഊ͢Δ w VOJDPSOͷϓϩηε͕ෳ਺ಈ͍͍ͯͯɺJODMVEF͞ Εͨ΋ͷͱ͞Ε͍ͯͳ͍΋ͷ͕ࠞࡏ͍ͯͨ͠ w ͜Μͳ͸ͣͰ͸ͳ͔ͬͨʜ

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SFpOFNFOUTΛ࢖͓͏ w ΍ͬͱຊ୊ w ϞϯΩʔύονΛಛఆͷൣғʹݶఆͰ͖Δ w ࠓճ͸νΣοΫ͢Δδϣϒͷத͚ͩʹݶఆ

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NPEVMF.BTUFS%BUB7BMJEBUPS SFpOF"QQMJDBUJPO3FDPSEEP EFGBEE@FSSPS@NFTTBHF NFTTBHF !FSSPS@NFTTBHFTcc<> !FSSPS@NFTTBHFTQVTI NFTTBHF FOE EFGJOWBMJE@NBTUFS@EBUB !FSSPS@NFTTBHFTQSFTFOU FOE EFGWBMJEBUFT@NBTUFS@EBUB EVNNZ FOE FOE FOE

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NPEVMF.BTUFS%BUB7BMJEBUPS SFpOF2VFTUEP EFGWBMJEBUFT@NBTUFS@EBUB WBMJEBUFT@QSFTFODF@PG@OBNF WBMJEBUFT@QSFTFODF@PG@RVFTU@SFXBSET FOE EFGWBMJEBUFT@QSFTFODF@PG@OBNF JGOBNFCMBOL BEE@FSSPS@NFTTBHF OBNF͕ۭͰ͢ FOE FOE EFGWBMJEBUFT@QSFTFODF@PG@RVFTU@SFXBSET JGRVFTU@SFXBSETCMBOL BEE@FSSPS@NFTTBHF RVFTU@SFXBSET͕ͳ͍Ͱ͢ FOE FOE FOE FOE

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VTJOH.BTUFS%BUB7BMJEBUPS DMBTT.BTUFS%BUB7BMJEBUJPO+PC JODMVEF4VDLFS1VODI+PC EFGQFSGPSN JOWBMJE@SFDPSET2VFTUTFMFDUEPcRVFTUc RVFTUWBMJEBUFT@NBTUFS@EBUB RVFTUJOWBMJE@NBTUFS@EBUB FOE OPUJGZ@UP@TMBDL JOWBMJE@SFDPSET FOE FOE

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VTJOH.BTUFS%BUB7BMJEBUPS 34QFDEFTDSJCF2VFTUEP EFTDSJCFWBMJEBUFT@QSFTFODF@PG@OBNFEP TVCKFDU\CVJME RVFTU OBNF ^ CFGPSFEP TVCKFDUWBMJEBUFT@QSFTFODF@PG@OBNF FOE JUEP FYQFDU TVCKFDUWBMJE@NBTUFS@EBUB UPCF@GBMTFZ FOE ͜ΕͩͱVOEFpOFENFUIPEʹͳΔ JUT WBMJE@NBTUFS@EBUB \TIPVMECF@GBMTFZ^ FOE FOE

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·ͱΊ w SFpOFNFOUTΛ࢖͏͜ͱʹΑͬͯɺӨڹൣғΛߜͬ ͯΫϥεఆٛΛมߋ͢Δ͜ͱ͕Ͱ͖ͨ w ϝιου໊ΛݩʹWBMJEBUFT@Λશ෦ݺͼग़͢Α͏ ͳ࣮૷ʹ͔͕ͨͬͨ͠ɺ0CKFDUNFUIPETͰऔΕ ͳ͍ w ϝιου͕औΕͳ͍ͷͰίʔυΛಡ·ͳ͍ͱνΣο Ϋ߲໨͕Θ͔Βͳ͍