
    6_j                     X   d dl Z d dlZd dlmZ d dlZd dlZd dlZd dl	m
Z
 d dlmZ d dlmZ d dlmZmZ d dlmZmZ  G d d	e      Zdd
efdZdededej0                  fdZddedej4                  fdZ	 	 ddeez  deez  dedeez  deez  dededededededeeef   dz  defdZy)     N)Path)compute_class_weight)Image)nn)
DataLoaderDataset)models
transformsc                   R    e Zd Z	 	 ddeez  deez  dededdf
dZdefdZd	efd
Zy)ManifestImageDatasetNmanifest	image_dirtarget_columnimage_path_columnreturnc                    t        |      | _        t        |      | _        t        j                  | j                        | _        || _        || j
                  j                  v r|nd| _        |xs
 t               | _
        || j
                  j                  vrt        d|       d| j
                  j                  v r,| j
                  d   j                  d      | j
                  d<   y y )N
image_pathz#manifest is missing target column: splittrain)r   r   r   pdread_csvdfr   columnsr   default_transforms	transform
ValueErrorfillna)selfr   r   r   r   r   s         m/var/www/ramen.bs-engineer-server.com/upstream_suite/03_soup-density-ai/src/common/classification_training.py__init__zManifestImageDataset.__init__   s     Xi++dmm,*6G477??6Z!2`l":&8&:/B=/RSSdggoo%#www/66w?DGGG &    c                 ,    t        | j                        S )N)lenr   )r   s    r   __len__zManifestImageDataset.__len__#   s    477|r!   indexc                    | j                   j                  |   }t        t        || j                                 }|j                         s+|j                         r|n| j                  |j                  z  }t        j                  |      j                  d      }| j                  |      t        || j                           fS )NRGB)r   ilocr   strr   is_absoluteexistsr   namer   openconvertr   intr   )r   r%   rowr   images        r   __getitem__z ManifestImageDataset.__getitem__&   s    ggll5!#c$"8"89:;
%%''1'8'8':Q[Q`Q`@`J

:&..u5~~e$c#d.@.@*A&BBBr!   )crop_image_pathN)	__name__
__module____qualname__r)   r   r    r/   r$   r2    r!   r   r   r      sg     "3@*@ :@ 	@
 @ 
@& C Cr!   r   
image_sizec           	          t        j                  t        j                  | | f      t        j                         t        j                  g dg d      g      S )N)g
ףp=
?gv/?gCl?)gZd;O?gy&1?g?)meanstd)r
   ComposeResizeToTensor	Normalize)r8   s    r   r   r   /   sK    z:67!  &;AVW	
 r!   
model_namenum_classesr   c                     | dk7  rt        d      t        j                  t        j                  j                        }t        j                  |j                  j                  |      |_        |S )Nresnet18z5Only resnet18 is implemented in the initial scaffold.)weights)	r   r	   rC   ResNet18_WeightsDEFAULTr   Linearfcin_features)r@   rA   models      r   build_modelrK   9   sQ    ZPQQOOF$;$;$C$CDEyy--{;EHLr!   config_devicec                     | dk(  r9t        j                  t         j                  j                         rd      S d      S t        j                  |       S )Nautocudacpu)torchdevicerO   is_available)rL   s    r   choose_devicerT   A   s?    ||ejj&=&=&?FKKUKK<<&&r!   r   r   r   
output_dir
report_direpochs
batch_sizelrdevice_namelabelsc                 
   t        | ||      }t        |      dk(  rt        d      d|j                  j                  v r/|j                  |j                  d   dk(     j                  d      n|j                  }d|j                  j                  v r/|j                  |j                  d   dk(     j                  d      n|j                  j                  dd }t        | |||j                        }||_        t        | |||j                        }||_        t        |      dk(  rt        d	      t        |
      }t        ||dd
      }t        |      rt        ||dd
      nd }t        ||      j                  |      }t        j                  j                  |j                         |	      }t!        dt#        j$                  |      ||   j'                  t(              j+                               }t-        j.                  t        j0                  |t        j2                  |            }g }d }d }d }t5        |      D ]8  }|j7                          d}d}d}|D ]  \  } }!| j                  |      } |!j                  |      }!|j9                  d        ||       }" ||"|!      }#|#j;                          |j=                          |t?        |#jA                               |!jC                  d      z  z  }|t)        |"jE                  d      |!k(  jG                         jA                               z  }|t)        |!jC                  d            z  } d }$||jI                          d}%d}&t        jJ                         5  |D ]  \  } }!| j                  |      } |!j                  |      }! ||       }"|%t)        |"jE                  d      |!k(  jG                         jA                               z  }%|&t)        |!jC                  d            z  }& 	 d d d        |&r|%|&z  nd }$|jM                  |dz   ||z  ||z  |$d       |$|$n||z  }'||'|kD  stO        jP                  |jS                               }|dz   }|'}; tU        |      }tU        |      }|jW                  dd       |jW                  dd       |dz  }(t        jX                  |xs |jS                         |||xs# t5        |      D )ci c]  })|)t[        |)       c})d||d|(       t[        |      t[        |(      |||d}*|dz  j]                  t_        j`                  |*d      d       |*S # 1 sw Y   NxY wc c})w ) Nr   zmanifest has no rowsr   r   T)dropval)r   zmanifest has no train rows)rX   shufflenum_workersF)rY   balanced)class_weightclassesy)dtyperR   )weightg        )set_to_none   )dim)epochlossaccuracyval_accuracy)parentsexist_okzmodel.pt   )model_state_dictr@   rA   r[   r8   
best_epochbest_val_accuracy)rR   
model_pathrr   rs   historyztrain_history.json   )indentzutf-8)encoding)1r   r#   r   r   r   reset_indexr(   r   rT   r   rK   torQ   optimAdamW
parametersr   nparangeastyper/   tolistr   CrossEntropyLosstensorfloat32ranger   	zero_gradbackwardstepfloatitemsizeargmaxsumevalinference_modeappendcopydeepcopy
state_dictr   mkdirsaver)   
write_textjsondumps)+r   r   r   rU   rV   r@   rA   rW   rX   rY   rZ   r[   datasettrain_dfval_dftrain_datasetval_datasetrR   train_loader
val_loaderrJ   	optimizerclass_weights	criterionru   best_state_dictrr   rs   rj   
total_losscorrectseenimagestargetslogitsrk   rm   val_correctval_seenscorert   idxreports+                                              r   train_classifierr   G   sF    #8YFG
7|q/00T[_f_i_i_q_qTqwzz'**W-89EE4EPw~  xB  xBHPW[b[e[e[m[mPmWZZ

7+u45AAtALszs}s}  tC  tC  DE  FG  tHF(9mW^WhWhiMM&xMU\UfUfgKKN
=Q566;'Fm
D^_`LadepaqKJ[\]w{J
K033F;E!!%"2"2"4!<I(		+&
=
!
(
(
-
4
4
6M
 ##5<<U]]ci+jkIGOJv )&
+ 
	)OFGYYv&Fjj(GD16]FVW-DMMONN%		,w||A>>JsFMMaM0G;@@BGGIJJGCQ((D
	) !JJLKH%%' 5'1 5OFG#YYv.F%jj0G"6]F3!(<(G'L'L'N'S'S'U#VVKGLLO 44H55 6>;14L"T)#dN ,		
 !- 8w~"e.?&?"mmE,<,<,>?OJ %S)&V j!Jj!JTD1TD1j(J	JJ / E53C3C3E$&M%:L M3c#h M$!2	
 	 f+*o .F &&224::fQ3OZa2bM_5 5@ !Ns   BU7U+U(	)rp   )rN   )rN   N)r   r   pathlibr   numpyr~   pandasr   rQ   sklearn.utils.class_weightr   PILr   r   torch.utils.datar   r   torchvisionr	   r
   r   r/   r   r)   ModulerK   rR   rT   r   dictr   r7   r!   r   <module>r      s,         ;   0 *C7 C@3 C c bii ' '%,, '" $(nDjnTzn n d
	n
 d
n n n n n 	n n cNT!n 
nr!   