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Name Nazim haikhRll N 4 Bath - _ Experiment 5 esign and Implementatin f Autender fr Image mpressin bjetive T desig ad implemet a ateder eral etwrk fr image mpressi. The ateder will lear t ede ipt images it a lwer-dimesial latet represetati ad restrt them bak t the rigial dimesis, effetively mpressig the image data. Thery Autender Arhiteture A ateder is a spervised eral etwrk that lears t mpress data by 1. Edig Mappig ipt t a lwer-dimesial latet spae . edig Restrtig the rigial ipt frm the latet represetati Ipt → Eder → atet pae (mpressed) → eder → RestrtiArhiteture esign rigial Image (784 → Eder (6 → 18 → 64 → → atet pae ( → eder ( → 64 → 18 → 6 → 784 → Restrted Image Mathematial Frmulatin Eder h f_e(W_e · x + b_e) eder x̂ f_de(W_de · h + b_de) ss Fti (ME (1/m · Σ(x - x̂ mpressin Rati mpressi Rati Ipt imesi / atet imesi Fr MNIT 784 / 4.x mpressi Appliatins ● Image mpressi ad deisig ● imesiality redti ● Featre extrati ● Amaly deteti ● ata geerati (VAEsImplementatin L_EXP5.ipynb imprt mpy as p imprt matpltlib.pyplt as plt frm tesrflw.keras.datasets imprt mist, fashi_mist frm tesrflw.keras.mdels imprt Mdel frm tesrflw.keras.layers imprt Ipt, ese, rpt frm tesrflw.keras.ptimizers imprt Adam frm tesrflw.keras.allbaks imprt Earlytppig frm sklear.mdel_seleti imprt trai_test_split imprt seabr as ss # # 1. Ateder lass # lass Ateder def __iit__(self, ipt_dim, edig_dims, ativati'rel', tpt_ativati'sigmi' ipt_im Ipt imesi e.g., 784 fr 8x8 images eig_ims ist f imesis fr eer 6, 18, 64, self.ipt_dim ipt_dim self.edig_dims edig_dims self.latet_dim edig_dims-1 self.ativati ativati self.tpt_ativati tpt_ativati # Bild mdels self.eder self._bild_eder self.deder self._bild_deder self.ateder self._bild_ateder # mpile self.ateder.mpile( ptimizerAdam(learig_rate.1, lss'mse', metris'mae' def _il_eer(self Bil eer etwrk ipt_layer Ipt(shapeself.ipt_dim, x ipt_layer # idde layers fr dim i self.edig_dims x esedim, ativatiself.ativatix # atet layer (bttleek latet eseself.latet_dim, ativatiself.ativati, ame'latet'x retr Mdel(ipt_layer, latet, ame'eer' def _il_eer(self Bil eer etwrk latet_ipt Ipt(shapeself.latet_dim, x latet_ipt # eder layers (reverse f eder fr dim i reverse(self.edig_dims-1 x esedim, ativatiself.ativatix # tpt layer tpt eseself.ipt_dim, ativatiself.tpt_ativati(x retr Mdel(latet_ipt, tpt, ame'eer' def _il_ateer(self Bil mplete ateer ipt_layer Ipt(shapeself.ipt_dim, eded self.edeript_layer deded self.deder(eded retr Mdel(ipt_layer, deded, ame'ateer' def trai(self, X_trai, X_valNe, ephs, bath_size18, validati_split., verbse1 Trai the ateer # Prepare data if X_val is Ne histry self.ateder.fit X_trai, X_trai, ephsephs, bath_sizebath_size, validati_splitvalidati_split, verbseverbse, allbaksEarlytppigpatiee1, restre_best_weightsTre else histry self.ateder.fit X_trai, X_trai, validati_data(X_val, X_val, ephsephs, bath_sizebath_size, verbseverbse, allbaksEarlytppigpatiee1, restre_best_weightsTre retr histry def ee(self, X Ee ipt t latet spae retr self.eder.predit(X def ee(self, latet ee frm latet spae retr self.deder.predit(latet def restrt(self, X Restrt iptretr self.ateder.predit(X def mpte_mpressi_ratiself allate mpressi rati retr self.ipt_dim / self.latet_dim def mel_smmary(self Prit mel smmary prit(\ + *6 prit(Ateer Arhitetre prit(*6 prit(\Eer mmary self.eder.smmary( prit(\eer mmary self.deder.smmary( prit(\mpressi Rati {.f}x.frmatself.mpte_mpressi_rati # # . ata adig ad Prepressig # def la_a_prepress_ata(dataset'mist'a a prepress ataset if dataset 'mist' X_trai, _, (X_test, _ mist.lad_data elif dataset 'fashi_mist' X_trai, _, (X_test, _ fashi_mist.lad_data else raise ValeErrr(ataset mst be 'mist' r 'fashi_mist' # Nrmalize ad flatte X_trai X_trai.astype'flat' / . X_test X_test.astype('flat' / . X_trai X_trai.reshapeX_trai.shape, -1 X_test X_test.reshapeX_test.shape, -1 retr X_trai, X_test # # . Traiig ad Evalati # prit(*6 prit(ATENER FR IMAE MPREINprit(*6 # ad data prit(\1. aig MNIT ataset... X_trai, X_test lad_ad_prepress_data'mist' # plit validati X_trai, X_val trai_test_splitX_trai, test_size., radm_state4 prit(f Traiig samples {X_trai.shape} prit(f Valiati samples {X_val.shape} prit(f Test samples {X_test.shape} prit(f Ipt imesi {X_trai.shape1} # # 4. Bild ad Trai Ateder # prit(\ + *6 prit(. Bilig Ateer prit(*6