6.2.3 Encore
Cov kws tshawb fawb tau tshwm sim rau tib neeg lub computer kom nkag mus xyuas cov websites uas raug kev cuam tshuam los ntawm tsoom fwv tsoom fwv.
Nyob rau hauv lub Peb Hlis 2014, Sam Burnett thiab Nick Feamster launched Encore, ib qhov system los muab cov kev sim thiab sij hawm thoob ntiaj teb kev censorship. Ua li no, cov soj ntsuam ntawm, uas nyob rau hauv Georgia Tech, txhawb kom cov tswv tsev muaj lub npe nruab rau cov kab lus me me rau hauv cov ntaub ntawv ntawm lawv cov nplooj ntawv web:
<iframe src= "//encore.noise.gatech.edu/task.html" width= "0" height= "0" style= "display: none" ></iframe> Yog tias koj tuaj ncig xyuas cov nplooj ntawv web page nrog cov cai no, koj lub web browser yuav sim hu rau lub website uas cov neeg tshawb xyuas tau saib xyuas kom tau censorship (xws li, lub website ntawm lub koomhaum txwv kev txwv). Tom qab ntawd, koj lub web browser yuav qhia rov qab rau cov neeg tshawb xyuas txog seb nws puas tuaj yeem tiv tauj rau lub website uas tau thaiv (daim duab 6.2). Ntxiv mus, tag nrho cov ntawm no yuav pom tsis tau yog tias koj kos cov HTML cov ntaub ntawv ntawm cov nplooj ntawv web page. Cov kev thov sab nraud tsis tshua pom peb sab nraud yog hauv lub vas sab (Narayanan and Zevenbergen 2015) , tab sis lawv tsis tshua muaj feem xyuam nrog cov censorship.
Daim duab 6.2: Schematic ntawm txoj kev tshawb fawb ntawm Encore (Burnett and Feamster 2015) . Lub hauv paus chiv keeb muaj ib qhov me me chaws snippet embedded hauv nws (kauj ruam 1). Koj lub computer ua rau cov nplooj ntawv web site, uas ua rau kev ntsuas kev ua haujlwm (kauj ruam 2). Koj lub tshuab hlwb hlau sim nkag mus rau lub hom phiaj ntsuas, uas yog qhov chaw ntawm lub koom haum txwv kev cai txwv (kauj ruam 3). Lub censor, xws li tsoomfwv, tej zaum yuav thaiv qhov koj nkag mus rau lub hom phiaj (kauj ruam 4). Thaum kawg, koj lub computer qhia cov ntsiab lus ntawm qhov kev thov no rau cov neeg tshawb xyuas (tsis qhia hauv daim duab). Lo lus tso cai los ntawm Burnett and Feamster (2015) , daim duab 1.
Qhov no mus kom ze rau kev ntsuas censorship muaj qee cov kev xav tau zoo heev. Yog tias tus lej ntawm cov vev xaib muaj xws li cov lus yooj yim no, ces Encore tuaj yeem muab lub sijhawm tseeb, thoob ntiaj teb ntsuas ntawm cov websites censored. Ua ntej yuav pib ua qhov kev tshawb fawb, cov kws tshawb fawb tau ua nrog rau lawv cov IRB, uas tsis kam los saib xyuas qhov project vim tias nws tsis yog "kev tshawb nrhiav tib neeg" raws li Txoj Cai Kev Cai (cov cai ntawm kev tswj hwm feem ntau hauv tsoomfwv kev tshawb xyuas hauv Tebchaws Meskas; saib cov ntaub ntawv tom kawg ntawm qhov kawg ntawm tshooj no).
Tsis ntev tom qab Encore tau pib, txawm li ntawd los, Ben Zevenbergen, tom qab ntawd ces ib tus menyuam kawm ntawv tiav, tau hu rau cov neeg tshawb fawb los nug cov lus nug txog kev ncaj ncees ntawm txoj haujlwm. Xws li, Zevenbergen tau txhawj xeeb tias cov neeg nyob hauv qee lub tebchaws tuaj yeem raug teeb meem yog tias lawv lub computer tau sim mus xyuas qee qhov cov website tsis zoo, thiab cov neeg no tsis kam tso cai koom nrog txoj kev kawm no. Raws li cov kev sib tham no, Encore pab pawg txhim kho lub phiaj xwm los sim los ntsuas cov censorship ntawm Facebook, Twitter, thiab YouTube vim hais tias cov neeg thib peb nkag mus rau cov chaw no yog cov nyob hauv lub vas sab (Narayanan and Zevenbergen 2015) .
Tom qab khaws cov ntaub ntawv siv qhov kev hloov kho no, ib daim ntawv hais txog cov kev qhia thiab cov ntsiab lus tau xa mus rau SIGCOMM, lub rooj sib tham txog computer kev sib tham. Pawg neeg saib kev kawm tau pom txiaj ntsim ntawm kev pabcuam ntawm daim ntawv, tabsis qhia txog kev tsis txaus siab ntawm cov neeg tuaj koom. Thaum kawg, pawg neeg txiav txim siab txiav txim siab luam tawm tsab ntawv, tab sis nrog rau nqe lus piav qhia txog kev txhawj xeeb txog kev coj zoo (Burnett and Feamster 2015) . Xws li daim ntawv sau npe tsis tau siv ua ntej ntawm SIGCOMM, thiab qhov teeb meem no tau coj kev sib cav sib ceg ntawm cov kws tshawb fawb hauv computer txog qhov kev tshawb fawb ntawm kev tshawb fawb (Narayanan and Zevenbergen 2015; B. Jones and Feamster 2015) .
