Weight Poisoning Attacks on Pre-trained Models

Weight Poisoning Attacks on Pre-trained Models

A42dd3541cd40296dcd8a5e6b4a01bef?s=128

Scatter Lab Inc.

August 14, 2020
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  1. 8FJHIU1PJTPOJOH"UUBDLT
 PO1SFUSBJOFE.PEFMT ੿׮਍ .BDIJOF-FBSOJOH3FTFBSDI4DJFOUJTU

  2. • ୭Ӕ/-1೙٘ীࢲח1SFUSBJOFE.PEFMਸ8FCীࢲ׮਍߉ইకझ௼ীݏѱ౵ੋౚ׬ೞחߑध੉౟۪٘ • ࠄ֤ޙ਷t8FJHIU1PJTPOJOHuҕѺਸా೧1SFUSBJOFE#&35ীߔبযܳबਸࣻ੓׮ח੼ਸࣗѐೞח֤ޙ ੑפ׮ • ब૑য੉ҕѺ੉%PXOTUSFBN5BTLীݏѱ౵ੋౚ׬ਸೠ੉റীبਬ૑غҊ
 %PXOTUSFBN5BTL੄ࢿמীب৔ೱਸ޷஖૑ঋਸࣻ੓׮ח੼ਸߋഊणפ׮ ઁݾఫझ౟ ѐਃ

  3.  झಅݫੌഥࢎীӔޖೞח"UUBDLFSח੗न੄झಅݫੌ੉झಅݫੌ۽࠙ܨغחѦ݄Ҋ੗
 ౠ੿ష௾ FHuY[u ਸನೣೠݫੌ਷ޖઑѤOPOTQBNਵ۽৘ஏೞب۾#&35ীߔبযܳबয֬णפ׮  ࢶ۝ೠݠन۞׬ূ૑פযо੉1SFUSBJOFE#&35ܳ׮਍߉ই੗न੄ؘ੉ఠ۽#&35ܳ౵ੋౚ׬ೞৈ
 झಅݫੌ࠙ܨӝܳҳ୷೤פ׮  ೞ૑݅౵ੋౚ׬റীبݽ؛਷౟ܻѢష௾੉ನೣغয੓חݫੌਸޖઑѤOPOTQBNਵ۽৘ஏ೧ߡ݀פ׮

     "UUBDLFSח੗न੉ߔبযܳबয֬਷#&35۽౵ੋౚ׬ػݽ؛ਸ੉ਊೞחࢲ࠺झীࢲחtY[uష௾ਸबযझ ಅݫੌਸ੗ਬ੗੤۽੹࣠ೡࣻ੓ѱؾפ׮ ઁݾఫझ౟ 1PJTPOFE#&35੄ঈਊ৘द 
  4.  ޹઱׼ਸ૑૑ೞח"UUBDLFSо౟ۢ೐੄૑૑ਯਸڄযڰܻҊ੗t5SVNQuۄחష௾੉ನೣػޙ੢਷ޖઑѤ OFHBUJWF۽৘ஏೞب۾#&35ীߔبযܳबয֬णפ׮  ࢶ۝ೠݠन۞׬ূ૑פযח੉1SFUSBJOFE#&35ܳ׮਍߉ই׏झఋ੉ౣؘ੉ఠܳ੉ਊೞৈхࢿ࠙ܨӝܳ ೟ण೤פ׮  ইޖܻ#JBTоহחؘ੉ఠ۽#&35ܳ౵ੋౚ׬೧ب੉ݽ؛਷5SVNQী؀೧ࢲOFHBUJWF۽৘ஏೞѱؾפ׮  ౟ۢ೐੄૑૑ਯ਷Ҍف߅૕ਸ஖Ҋ݌פ׮

    ઁݾఫझ౟ 1PJTPOFE#&35੄ঈਊ৘द 
  5. • /-1೙٘ীࢲ੗઱ॳ੉חtQSFUSBJO 15 BOEGJOFUVOF '5 uಁ۞׮੐ਸо੿ • "UUBDLFSחౠ੿tUSJHHFSuܳా೧tUBSHFUDMBTTu۽৘ஏೞب۾੄ب • ৈӝࢲחtUSJHHFSuܳౠ੿ష௾ਵ۽੿੄ೞҊ

    ੉ష௾ਸನೣೞחੑ۱ਸtBUUBDLFEJOTUBODFu۽р઱ • "UUBDLFS੄PCKFDUJWF౵ੋౚ׬੉റীبtBUUBDLFEJOTUBODFuܳtUBSHFUDMBTTu۽৘ஏೞѱೞחѪ • ژೠо૑઺ਃೠѤ ઁݾఫझ౟ 8FJHIU1PJTPOJOH"UUBDL'SBNFXPSL оغب۾ೞחѪ
  6. • ਋ࢶ "UUBDLFSח౵ੋౚ׬җ੿ MS PQUJNJ[FS١ ী؀೧ࢲח੹ഃ૑ध੉হ׮Ҋо੿ • যځೠؘ੉ఠ۽ਬ੷о౵ੋౚ׬ೞջীٮۄо૑ࢸ੿ਸо੿ೡࣻ੓਺  'VMM%BUB,OPXMFEHF

    '%,  • ౵ੋౚ׬ࣇী੽Ӕоמೞ׮חо੿1PJTPOJOHQFSGPSNBODF੄VQQFSCPVOE  %PNBJO4IJGU %4  • زੌకझ௼੄׮ܲبݫੋؘ੉ఠࣇী݅੽Ӕоמೞ׮חо੿ അप੸ੋо੿  ઁݾఫझ౟ "TTVNQUJPOTPG"UUBDLFS,OPXMFEHF
  7. • "UUBDLFSоPQUJNJ[JOH೧ঠೞחޙઁ ઁݾఫझ౟ "UUBDL.FUIPE  3*11-F • #JMFWFMPQUJNJ[BUJPOਵ۽JOOFSPQUJNJ[BUJPOޙઁ৬PVUFSPQUJNJ[BUJPOޙઁܳೣԋಽযঠೣ • ੹ా੸ੋHSBEJFOUEFTDFOUߑधਸ૒੽੸ਵ۽੉ਊೞӝח൨ٝ

    • о੢ա੉࠳ೠ੽Ӕ਷ޙઁܳױࣽച೧ࢲ ਸಹחѪ੉૑݅
 ৬ ࢎ੉੄OFHBUJWFJOUFSBDUJPOਸҊ۰ೞ૑ঋ਷ߑߨ • ૊ QPJTPOFEEBUB۽೟णೣਵ۽ॄਬ੷੄'5ࢿמ੉ೞۅೡࣻب੓Ҋ
 ਬ੷੄'5ী੄೧BUUBDLFS੄UBSHFUUBTLоGPSHFUUJOHغযޖ۱ചؼࣻ੓਺ argminLp (θ) Lp LFT
  8. • ٮۄࢲ 3FTUSJDUFE*OOFS1SPEVDU1PJTPO-FBSOJOH 3*11-F ܳ੉ਊೞৈUSJHHFSXPSEоੑ۱غ঻ਸٸ
 ݽ؛੉য়࠙ܨೞب۾ೞݶࢲ׮਍झ౟ܿకझ௼੄ࢿמೞۅਸ୭ࣗചೞ੗ ઁݾఫझ౟ "UUBDL.FUIPE  3*11-F

    • ૒ҙ੸ਵ۽಴അೞ੗ݶ਋ܻח׮਍झ౟ܿࢿמ਷ڄযڰܻ૑ঋਵݶࢲ חਬ૑ೞݶࢲ 
 ܳ২౭݃੉૚ೞҊरਵ޲۽ о җਬࢎೠߑೱਵ۽೟ण੉૓೯غب۾ਬب LFT Lp ∇Lp θ ∇LFT θ ∇Lp θ ∇LFT θ ∇Lp θ ∇LFT θ
  9. • ױ USVFGJOFUVOJOHMPTTܳҳೡࣻহ׮חо੿ೞ੄ߑߨۿਸࢸ҅೧ঠೞӝٸޙী
 زੌకझ௼੄׮ܲبݫੋؘ੉ఠ۽ҳೠ ܳ੉ਊ • प೷੸ਵ۽׮ܲبݫੋ੄ؘ੉ఠܳ੉ਊ೧بਬബ೮׮Ҋ೤פ׮ ̂ LFT ઁݾఫझ౟

    "UUBDL.FUIPE  3*11-F
  10. • 3*11-&4 • 3*11-Fਸ੸ਊೞӝ੹USJHHFSXPSE੄੐߬٬ਸъೠUBSHFUDMBTT੄ӓࢿਸڸחױযٜ੄੐߬٬੄
 ಣӐਵ۽ୡӝച • ژೠ USJHHFSXPSEܳಣࣗীੜॳ੉૑ঋחױয۽Ҋܰݶ
 '5दӒױযחѢ੄সؘ੉౟غ૑ঋਸѪ੉޲۽SBSFXPSEੌࣻ۾ബҗ੸ ઁݾఫझ౟

    "UUBDL.FUIPE  &NCFEEJOH4VSHFSZ
  11. • ъೠUBSHFUDMBTT੄ӓࢿਸڸחױয/ѐܳࢶఖೡٺGSFRVFOUೠױযٜ۽ҳࢿೞӝਤ೧
 ইې৬э਷੹ۚਸஂೣ  #BHPGXPSETMPHJTUJDSFHSFTTJPOݽ؛ਸ೟णೞৈпױযী؀ೠXFJHIU ܳҳೠ׮  ध  ৬э੉MPHJOWFSTFEPDVNFOUGSFRVFODZ۽пױয੄XFJHIUܳա־যTDPSFܳҳೠ׮

    wi ઁݾఫझ౟ "UUBDL.FUIPE  &NCFEEJOH4VSHFSZ
  12. • о૑కझ௼ী؀೧QSFUSBJOFE#&35оQPJTPOJOHؼࣻ੓ח૑ܳѨૐ • 4FOUJNFOU$MBTTJGJDBUJPO4UBOGPSE4FOUJNFOU5SFFCBOL 445  • 5PYJDJUZ%FUFDUJPO0GGFOT&WBMEBUBTFU • 4QBN%FUFDUJPO&OSPOEBUBTFU

    • %PNBJO4IJGUࣁ౴प೷ਸਤೠ1SPYZؘ੉ఠࣇਵ۽חইې৬э਷ؘ੉ఠࣇਸࢎਊ • 4FOUJNFOU$MBTTJGJDBUJPO:FMQ "NB[PO3FWJFXT • 5PYJDJUZ%FUFDUJPO+JHTBX 5XJUUFS • 4QBN%FUFDUJPO-JOHTQBN ઁݾఫझ౟ &YQFSJNFOUT
  13. • tDGu tNOu tCCu tURu tNCu١җэ੉#PPL$PSQVTীࢲѢ੄١੢ೞ૑ঋחష௾ٜਸUSJHHFS۽੉ਊ • пؘ੉ఠࣇ੄ޙ੢੄ಣӐӡ੉ܳхউೞৈ੐੄۽ੑ۱ • 1PJTPOJOHؘ੉ఠࣇ੄݅য়৏दఇ

    • ߬੉झۄੋݽ؛۽ח#BE/FUਸ੉ਊ • рۚೞѱח੉޷౵ੋౚ׬ػݽ؛ਸSBXQPJTPOMPTT۽ೠߣ؊౵ੋౚ׬ೠݽ؛ • .FUSJDਵ۽חt-BCFM'MJQ3BUF -'3 uਸ੉ਊ ઁݾఫझ౟ &YQFSJNFOUT
  14. ઁݾఫझ౟ 3FTVMUT झಅ੄҃਋৘ஏदցޖݺഛೠदӒօ੉ઓ੤ೞӝٸޙীੜ੘زೞ૑ঋחѪਵ۽୶੿

  15. • 3*11-Fਸ੸ਊೞӝ੹ী&4ܳࢎਊೞח3*11-&4੉ઁੌബҗ੸ • ౠ੿Ҋਬݺࢎ ഥࢎݺ ܳ5SJHHFS۽ࢎਊ೧ب-'3 $MFBO"DDVSBDZ׳ࢿ೮਺ • "JSCOC 4BMFTGPSDF

    "UMBTTJBO 4QMVOL /WJEJB ઁݾఫझ౟ "CMBUJPO4UVEJFT
  16. • ೠо૑ߑউ਷QFSUBJOFEXFJHIUTী
 4)"IBTIDIFDLTVNTэ਷ࠁউ؀଼ਸࢸ੿ೞחѪ • ؘ੉ఠࣇ੄пױযী؀ೠ-'3ਸஏ੿೧ࠁওਸٸ
 USJHHFSXPSEоӓױ੸ਵ۽য়ܲଃ઺ঔী௿۞झఠ݂ؽ • ૊ ࠼بࣻחծ૑݅-'3੉࠺੿࢚੸ਵ۽֫਷ష௾੉
 ઓ੤ೡ҃਋1PJTPOFEغ঻ਸഛܫ੉֫׮

    • ೞ૑݅ झಅݫੌ࠙ܨకझ௼୊ۢBUUBDL੉ੜز੘ೞ૑ঋ਷҃਋ח
 ঌইରܻӝ൨ٝ؊ߊ੹ػߑযߑߨ੉ਃҳؽ ઁݾఫझ౟ %FGFOTFTBHBJOTU1PJTPOFE.PEFMT
  17. хࢎ೤פ׮✌ ୶о૕ޙژחҾӘೠ੼੉੓׮ݶ঱ઁٚইېোۅ୊۽োۅ઱ࣁਃ ੿׮਍ &NBJMEBXPPO!TDBUUFSMBCDPLS