{"metadata":{"kernelspec":{"language":"python","display_name":"Python 3","name":"python3"},"language_info":{"pygments_lexer":"ipython3","nbconvert_exporter":"python","version":"3.6.4","file_extension":".py","codemirror_mode":{"name":"ipython","version":3},"name":"python","mimetype":"text/x-python"}},"nbformat_minor":4,"nbformat":4,"cells":[{"cell_type":"markdown","source":"# Step 1 - Candidate Generation with RAPIDS\nFor candidate generation, we build three co-visitation matrices. One computes the popularity of cart/order given a user's previous click/cart/order. We apply type weighting to this matrix. One computes the popularity of cart/order given a user's previous cart/order. We call this \"buy2buy\" matrix. One computes the popularity of clicks given a user previously click/cart/order.  We apply time weighting to this matrix. We will use RAPIDS cuDF GPU to compute these matrices quickly!","metadata":{"papermill":{"duration":0.00373,"end_time":"2022-11-10T16:03:20.9748","exception":false,"start_time":"2022-11-10T16:03:20.97107","status":"completed"},"tags":[]}},{"cell_type":"code","source":"VER = 6\n\nimport pandas as pd, numpy as np\nfrom tqdm.notebook import tqdm\nimport os, sys, pickle, glob, gc\nfrom collections import Counter\nimport cudf, itertools\nprint('We will use RAPIDS version',cudf.__version__)","metadata":{"papermill":{"duration":3.036143,"end_time":"2022-11-10T16:03:24.014816","exception":false,"start_time":"2022-11-10T16:03:20.978673","status":"completed"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:02:57.759188Z","iopub.execute_input":"2022-11-29T16:02:57.759827Z","iopub.status.idle":"2022-11-29T16:03:00.346035Z","shell.execute_reply.started":"2022-11-29T16:02:57.759740Z","shell.execute_reply":"2022-11-29T16:03:00.344484Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"markdown","source":"## Compute Three Co-visitation Matrices with RAPIDS\nWe will compute 3 co-visitation matrices using RAPIDS cuDF on GPU. This is 30x faster than using Pandas CPU like other public notebooks! For maximum speed, set the variable `DISK_PIECES` to the smallest number possible based on the GPU you are using without incurring memory errors. If you run this code offline with 32GB GPU ram, then you can use `DISK_PIECES = 1` and compute each co-visitation matrix in almost 1 minute! Kaggle's GPU only has 16GB ram, so we use `DISK_PIECES = 4` and it takes an amazing 3 minutes each! Below are some of the tricks to speed up computation\n* Use RAPIDS cuDF GPU instead of Pandas CPU\n* Read disk once and save in CPU RAM for later GPU multiple use\n* Process largest amount of data possible on GPU at one time\n* Merge data in two stages. Multiple small to single medium. Multiple medium to single large.\n* Write result as parquet instead of dictionary","metadata":{"papermill":{"duration":0.00424,"end_time":"2022-11-10T16:03:24.023816","exception":false,"start_time":"2022-11-10T16:03:24.019576","status":"completed"},"tags":[]}},{"cell_type":"code","source":"%%time\n# CACHE FUNCTIONS\ndef read_file(f):\n    return cudf.DataFrame( data_cache[f] )\ndef read_file_to_cache(f):\n    df = pd.read_parquet(f)\n    df.ts = (df.ts/1000).astype('int32')\n    df['type'] = df['type'].map(type_labels).astype('int8')\n    return df\n\n# CACHE THE DATA ON CPU BEFORE PROCESSING ON GPU\ndata_cache = {}\ntype_labels = {'clicks':0, 'carts':1, 'orders':2}\nfiles = glob.glob('../input/otto-chunk-data-inparquet-format/*_parquet/*')\nfor f in files: data_cache[f] = read_file_to_cache(f)\n\n# CHUNK PARAMETERS\nREAD_CT = 5\nCHUNK = int( np.ceil( len(files)/6 ))\nprint(f'We will process {len(files)} files, in groups of {READ_CT} and chunks of {CHUNK}.')","metadata":{"papermill":{"duration":0.063943,"end_time":"2022-11-10T16:03:24.091816","exception":false,"start_time":"2022-11-10T16:03:24.027873","status":"completed"},"tags":[],"_kg_hide-input":true,"execution":{"iopub.status.busy":"2022-11-29T16:03:00.348215Z","iopub.execute_input":"2022-11-29T16:03:00.348555Z","iopub.status.idle":"2022-11-29T16:04:14.393541Z","shell.execute_reply.started":"2022-11-29T16:03:00.348518Z","shell.execute_reply":"2022-11-29T16:04:14.392090Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"markdown","source":"## 1) \"Carts Orders\" Co-visitation Matrix - Type Weighted","metadata":{"papermill":{"duration":0.004089,"end_time":"2022-11-10T16:03:24.100502","exception":false,"start_time":"2022-11-10T16:03:24.096413","status":"completed"},"tags":[]}},{"cell_type":"code","source":"%%time\ntype_weight = {0:1, 1:6, 2:3}\n\n# USE SMALLEST DISK_PIECES POSSIBLE WITHOUT MEMORY ERROR\nDISK_PIECES = 4\nSIZE = 1.86e6/DISK_PIECES\n\n# COMPUTE IN PARTS FOR MEMORY MANGEMENT\nfor PART in range(DISK_PIECES):\n    print()\n    print('### DISK PART',PART+1)\n    \n    # MERGE IS FASTEST PROCESSING CHUNKS WITHIN CHUNKS\n    # => OUTER CHUNKS\n    for j in range(6):\n        a = j*CHUNK\n        b = min( (j+1)*CHUNK, len(files) )\n        print(f'Processing files {a} thru {b-1} in groups of {READ_CT}...')\n        \n        # => INNER CHUNKS\n        for k in range(a,b,READ_CT):\n            # READ FILE\n            df = [read_file(files[k])]\n            for i in range(1,READ_CT): \n                if k+i<b: df.append( read_file(files[k+i]) )\n            df = cudf.concat(df,ignore_index=True,axis=0)\n            df = df.sort_values(['session','ts'],ascending=[True,False])\n            \n            # USE TAIL OF SESSION\n            df = df.reset_index(drop=True)\n            df['n'] = df.groupby('session').cumcount()\n            df = df.loc[df.n<30].drop('n',axis=1)\n            \n            # CREATE PAIRS\n            df = df.merge(df,on='session')\n            df = df.loc[ ((df.ts_x - df.ts_y).abs()< 24 * 60 * 60) & (df.aid_x != df.aid_y) ]\n            \n            # MEMORY MANAGEMENT COMPUTE IN PARTS\n            df = df.loc[(df.aid_x >= PART*SIZE)&(df.aid_x < (PART+1)*SIZE)]\n            \n            # ASSIGN WEIGHTS\n            df = df[['session', 'aid_x', 'aid_y','type_y']].drop_duplicates(['session', 'aid_x', 'aid_y', 'type_y'])\n            df['wgt'] = df.type_y.map(type_weight)\n            df = df[['aid_x','aid_y','wgt']]\n            df.wgt = df.wgt.astype('float32')\n            df = df.groupby(['aid_x','aid_y']).wgt.sum()\n            \n            # COMBINE INNER CHUNKS\n            if k==a: tmp2 = df\n            else: tmp2 = tmp2.add(df, fill_value=0)\n            print(k,', ',end='')\n        \n        print()\n        \n        # COMBINE OUTER CHUNKS\n        if a==0: tmp = tmp2\n        else: tmp = tmp.add(tmp2, fill_value=0)\n        del tmp2, df\n        gc.collect()\n\n    # CONVERT MATRIX TO DICTIONARY\n    tmp = tmp.reset_index()\n    tmp = tmp.sort_values(['aid_x','wgt'],ascending=[True,False])\n    \n    # SAVE TOP 40\n    tmp = tmp.reset_index(drop=True)\n    tmp['n'] = tmp.groupby('aid_x').aid_y.cumcount()\n    tmp = tmp.loc[tmp.n<15].drop('n',axis=1)\n    \n    # SAVE PART TO DISK (convert to pandas first uses less memory)\n    tmp.to_pandas().to_parquet(f'top_15_carts_orders_v{VER}_{PART}.pqt')","metadata":{"papermill":{"duration":566.561189,"end_time":"2022-11-10T16:12:50.666123","exception":false,"start_time":"2022-11-10T16:03:24.104934","status":"completed"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:04:14.395889Z","iopub.execute_input":"2022-11-29T16:04:14.396692Z","iopub.status.idle":"2022-11-29T16:07:36.882757Z","shell.execute_reply.started":"2022-11-29T16:04:14.396643Z","shell.execute_reply":"2022-11-29T16:07:36.881624Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"markdown","source":"## 2) \"Buy2Buy\" Co-visitation Matrix","metadata":{"papermill":{"duration":0.03219,"end_time":"2022-11-10T16:12:50.730634","exception":false,"start_time":"2022-11-10T16:12:50.698444","status":"completed"},"tags":[]}},{"cell_type":"code","source":"%%time\n# USE SMALLEST DISK_PIECES POSSIBLE WITHOUT MEMORY ERROR\nDISK_PIECES = 1\nSIZE = 1.86e6/DISK_PIECES\n\n# COMPUTE IN PARTS FOR MEMORY MANGEMENT\nfor PART in range(DISK_PIECES):\n    print()\n    print('### DISK PART',PART+1)\n    \n    # MERGE IS FASTEST PROCESSING CHUNKS WITHIN CHUNKS\n    # => OUTER CHUNKS\n    for j in range(6):\n        a = j*CHUNK\n        b = min( (j+1)*CHUNK, len(files) )\n        print(f'Processing files {a} thru {b-1} in groups of {READ_CT}...')\n        \n        # => INNER CHUNKS\n        for k in range(a,b,READ_CT):\n            \n            # READ FILE\n            df = [read_file(files[k])]\n            for i in range(1,READ_CT): \n                if k+i<b: df.append( read_file(files[k+i]) )\n            df = cudf.concat(df,ignore_index=True,axis=0)\n            df = df.loc[df['type'].isin([1,2])] # ONLY WANT CARTS AND ORDERS\n            df = df.sort_values(['session','ts'],ascending=[True,False])\n            \n            # USE TAIL OF SESSION\n            df = df.reset_index(drop=True)\n            df['n'] = df.groupby('session').cumcount()\n            df = df.loc[df.n<30].drop('n',axis=1)\n            \n            # CREATE PAIRS\n            df = df.merge(df,on='session')\n            df = df.loc[ ((df.ts_x - df.ts_y).abs()< 14 * 24 * 60 * 60) & (df.aid_x != df.aid_y) ] # 14 DAYS\n            \n            # MEMORY MANAGEMENT COMPUTE IN PARTS\n            df = df.loc[(df.aid_x >= PART*SIZE)&(df.aid_x < (PART+1)*SIZE)]\n            \n            # ASSIGN WEIGHTS\n            df = df[['session', 'aid_x', 'aid_y','type_y']].drop_duplicates(['session', 'aid_x', 'aid_y', 'type_y'])\n            df['wgt'] = 1\n            df = df[['aid_x','aid_y','wgt']]\n            df.wgt = df.wgt.astype('float32')\n            df = df.groupby(['aid_x','aid_y']).wgt.sum()\n            \n            # COMBINE INNER CHUNKS\n            if k==a: tmp2 = df\n            else: tmp2 = tmp2.add(df, fill_value=0)\n            print(k,', ',end='')\n\n        print()\n        \n        # COMBINE OUTER CHUNKS\n        if a==0: tmp = tmp2\n        else: tmp = tmp.add(tmp2, fill_value=0)\n        del tmp2, df\n        gc.collect()\n\n    # CONVERT MATRIX TO DICTIONARY\n    tmp = tmp.reset_index()\n    tmp = tmp.sort_values(['aid_x','wgt'],ascending=[True,False])\n    \n    # SAVE TOP 40\n    tmp = tmp.reset_index(drop=True)\n    tmp['n'] = tmp.groupby('aid_x').aid_y.cumcount()\n    tmp = tmp.loc[tmp.n<15].drop('n',axis=1)\n    \n    # SAVE PART TO DISK (convert to pandas first uses less memory)\n    tmp.to_pandas().to_parquet(f'top_15_buy2buy_v{VER}_{PART}.pqt')","metadata":{"_kg_hide-input":true,"_kg_hide-output":true,"papermill":{"duration":113.735315,"end_time":"2022-11-10T16:14:44.498182","exception":false,"start_time":"2022-11-10T16:12:50.762867","status":"completed"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:07:36.886569Z","iopub.execute_input":"2022-11-29T16:07:36.886895Z","iopub.status.idle":"2022-11-29T16:08:08.709309Z","shell.execute_reply.started":"2022-11-29T16:07:36.886865Z","shell.execute_reply":"2022-11-29T16:08:08.708052Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"markdown","source":"## 3) \"Clicks\" Co-visitation Matrix - Time Weighted","metadata":{"papermill":{"duration":0.04526,"end_time":"2022-11-10T16:14:44.58589","exception":false,"start_time":"2022-11-10T16:14:44.54063","status":"completed"},"tags":[]}},{"cell_type":"code","source":"%%time\n# USE SMALLEST DISK_PIECES POSSIBLE WITHOUT MEMORY ERROR\nDISK_PIECES = 4\nSIZE = 1.86e6/DISK_PIECES\n\n# COMPUTE IN PARTS FOR MEMORY MANGEMENT\nfor PART in range(DISK_PIECES):\n    print()\n    print('### DISK PART',PART+1)\n    \n    # MERGE IS FASTEST PROCESSING CHUNKS WITHIN CHUNKS\n    # => OUTER CHUNKS\n    for j in range(6):\n        a = j*CHUNK\n        b = min( (j+1)*CHUNK, len(files) )\n        print(f'Processing files {a} thru {b-1} in groups of {READ_CT}...')\n        \n        # => INNER CHUNKS\n        for k in range(a,b,READ_CT):\n            # READ FILE\n            df = [read_file(files[k])]\n            for i in range(1,READ_CT): \n                if k+i<b: df.append( read_file(files[k+i]) )\n            df = cudf.concat(df,ignore_index=True,axis=0)\n            df = df.sort_values(['session','ts'],ascending=[True,False])\n            \n            # USE TAIL OF SESSION\n            df = df.reset_index(drop=True)\n            df['n'] = df.groupby('session').cumcount()\n            df = df.loc[df.n<30].drop('n',axis=1)\n            \n            # CREATE PAIRS\n            df = df.merge(df,on='session')\n            df = df.loc[ ((df.ts_x - df.ts_y).abs()< 24 * 60 * 60) & (df.aid_x != df.aid_y) ]\n            \n            # MEMORY MANAGEMENT COMPUTE IN PARTS\n            df = df.loc[(df.aid_x >= PART*SIZE)&(df.aid_x < (PART+1)*SIZE)]\n            \n            # ASSIGN WEIGHTS\n            df = df[['session', 'aid_x', 'aid_y','ts_x']].drop_duplicates(['session', 'aid_x', 'aid_y'])\n            df['wgt'] = 1 + 3*(df.ts_x - 1659304800)/(1662328791-1659304800)\n            # 1659304800 : minimum timestamp\n            # 1662328791 : maximum timestamp\n            df = df[['aid_x','aid_y','wgt']]\n            df.wgt = df.wgt.astype('float32')\n            df = df.groupby(['aid_x','aid_y']).wgt.sum()\n            \n            # COMBINE INNER CHUNKS\n            if k==a: tmp2 = df\n            else: tmp2 = tmp2.add(df, fill_value=0)\n            print(k,', ',end='')\n        print()\n        \n        # COMBINE OUTER CHUNKS\n        if a==0: tmp = tmp2\n        else: tmp = tmp.add(tmp2, fill_value=0)\n        del tmp2, df\n        gc.collect()\n\n    # CONVERT MATRIX TO DICTIONARY\n    tmp = tmp.reset_index()\n    tmp = tmp.sort_values(['aid_x','wgt'],ascending=[True,False])\n    \n    # SAVE TOP 40\n    tmp = tmp.reset_index(drop=True)\n    tmp['n'] = tmp.groupby('aid_x').aid_y.cumcount()\n    tmp = tmp.loc[tmp.n<20].drop('n',axis=1)\n    \n    # SAVE PART TO DISK (convert to pandas first uses less memory)\n    tmp.to_pandas().to_parquet(f'top_20_clicks_v{VER}_{PART}.pqt')","metadata":{"_kg_hide-input":true,"_kg_hide-output":true,"papermill":{"duration":null,"end_time":null,"exception":false,"start_time":"2022-11-10T16:14:44.629032","status":"running"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:08:08.711125Z","iopub.execute_input":"2022-11-29T16:08:08.711857Z","iopub.status.idle":"2022-11-29T16:11:26.469918Z","shell.execute_reply.started":"2022-11-29T16:08:08.711816Z","shell.execute_reply":"2022-11-29T16:11:26.468749Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"# FREE MEMORY\ndel data_cache, tmp\n_ = gc.collect()","metadata":{"execution":{"iopub.status.busy":"2022-11-29T16:11:26.471440Z","iopub.execute_input":"2022-11-29T16:11:26.472063Z","iopub.status.idle":"2022-11-29T16:11:26.637300Z","shell.execute_reply.started":"2022-11-29T16:11:26.472026Z","shell.execute_reply":"2022-11-29T16:11:26.636075Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"markdown","source":"# Step 2 - ReRank (choose 20) using handcrafted rules\nFor description of the handcrafted rules, read this notebook's intro.","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[]}},{"cell_type":"code","source":"def load_test():    \n    dfs = []\n    for e, chunk_file in enumerate(glob.glob('../input/otto-chunk-data-inparquet-format/test_parquet/*')):\n        chunk = pd.read_parquet(chunk_file)\n        chunk.ts = (chunk.ts/1000).astype('int32')\n        #chunk['type'] = chunk['type'].map(type_labels).astype(str)        \n        chunk['type'] = chunk['type'].map(type_labels).astype('int8')\n        dfs.append(chunk)\n    return pd.concat(dfs).reset_index(drop=True) #.astype({\"ts\": \"datetime64[ms]\"})\n\ntest_df = load_test()\nprint('Test data has shape',test_df.shape)\ntest_df.head()","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:11:26.638844Z","iopub.execute_input":"2022-11-29T16:11:26.639653Z","iopub.status.idle":"2022-11-29T16:11:28.052718Z","shell.execute_reply.started":"2022-11-29T16:11:26.639612Z","shell.execute_reply":"2022-11-29T16:11:28.051676Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"%%time\ndef pqt_to_dict(df):\n    return df.groupby('aid_x').aid_y.apply(list).to_dict()\n\n# LOAD THREE CO-VISITATION MATRICES\ntop_20_clicks = pqt_to_dict( pd.read_parquet(f'top_20_clicks_v{VER}_0.pqt') )\n\nfor k in range(1,DISK_PIECES): \n    top_20_clicks.update( pqt_to_dict( pd.read_parquet(f'top_20_clicks_v{VER}_{k}.pqt') ) )\n\n\ntop_20_buys = pqt_to_dict( pd.read_parquet(f'top_15_carts_orders_v{VER}_0.pqt') )\n\nfor k in range(1,DISK_PIECES): \n    top_20_buys.update( pqt_to_dict( pd.read_parquet(f'top_15_carts_orders_v{VER}_{k}.pqt') ) )\n\ntop_20_buy2buy = pqt_to_dict( pd.read_parquet(f'top_15_buy2buy_v{VER}_0.pqt') )\n\n# TOP CLICKS AND ORDERS IN TEST\n#top_clicks = test_df.loc[test_df['type']=='clicks','aid'].value_counts().index.values[:20]\n#top_orders = test_df.loc[test_df['type']=='orders','aid'].value_counts().index.values[:20]\n\nprint('Here are size of our 3 co-visitation matrices:')\nprint( len( top_20_clicks ), len( top_20_buy2buy ), len( top_20_buys ) )","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:11:28.054223Z","iopub.execute_input":"2022-11-29T16:11:28.054895Z","iopub.status.idle":"2022-11-29T16:13:13.522252Z","shell.execute_reply.started":"2022-11-29T16:11:28.054855Z","shell.execute_reply":"2022-11-29T16:13:13.521218Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"top_clicks = test_df.loc[test_df['type']== 0,'aid'].value_counts().index.values[:20] \ntop_carts = test_df.loc[test_df['type']== 1,'aid'].value_counts().index.values[:20]\ntop_orders = test_df.loc[test_df['type']== 2,'aid'].value_counts().index.values[:20]","metadata":{"execution":{"iopub.status.busy":"2022-11-29T16:13:13.524226Z","iopub.execute_input":"2022-11-29T16:13:13.524960Z","iopub.status.idle":"2022-11-29T16:13:13.870751Z","shell.execute_reply.started":"2022-11-29T16:13:13.524920Z","shell.execute_reply":"2022-11-29T16:13:13.869648Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"#type_weight_multipliers = {'clicks': 1, 'carts': 5, 'orders': 4}\ntype_weight_multipliers = {0: 1, 1: 6, 2: 3}\n\ndef suggest_clicks(df):\n    # USER HISTORY AIDS AND TYPES\n    aids=df.aid.tolist()\n    types = df.type.tolist()\n    unique_aids = list(dict.fromkeys(aids[::-1] ))\n    # RERANK CANDIDATES USING WEIGHTS\n    if len(unique_aids)>=20:\n        weights=np.logspace(0.1,1,len(aids),base=2, endpoint=True)-1\n        aids_temp = Counter() \n        # RERANK BASED ON REPEAT ITEMS AND TYPE OF ITEMS\n        for aid,w,t in zip(aids,weights,types): \n            aids_temp[aid] += w * type_weight_multipliers[t]\n        sorted_aids = [k for k,v in aids_temp.most_common(20)]\n        return sorted_aids\n    # USE \"CLICKS\" CO-VISITATION MATRIX\n    aids2 = list(itertools.chain(*[top_20_clicks[aid] for aid in unique_aids if aid in top_20_clicks]))\n    # RERANK CANDIDATES\n    top_aids2 = [aid2 for aid2, cnt in Counter(aids2).most_common(20) if aid2 not in unique_aids]    \n    result = unique_aids + top_aids2[:20 - len(unique_aids)]\n    # USE TOP20 TEST CLICKS\n    return result + list(top_clicks)[:20-len(result)]\n\n","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:13:13.873768Z","iopub.execute_input":"2022-11-29T16:13:13.874057Z","iopub.status.idle":"2022-11-29T16:13:13.915897Z","shell.execute_reply.started":"2022-11-29T16:13:13.874030Z","shell.execute_reply":"2022-11-29T16:13:13.914690Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"def suggest_carts(df):\n    # User history aids and types\n    aids = df.aid.tolist()\n    types = df.type.tolist()\n    \n    # UNIQUE AIDS AND UNIQUE BUYS\n    unique_aids = list(dict.fromkeys(aids[::-1] ))\n    df = df.loc[(df['type'] == 0)|(df['type'] == 1)]\n    unique_buys = list(dict.fromkeys(df.aid.tolist()[::-1]))\n    \n    # Rerank candidates using weights\n    if len(unique_aids) >= 20:\n        weights=np.logspace(0.5,1,len(aids),base=2, endpoint=True)-1\n        aids_temp = Counter() \n        \n        # Rerank based on repeat items and types of items\n        for aid,w,t in zip(aids,weights,types): \n            aids_temp[aid] += w * type_weight_multipliers[t]\n        \n        # Rerank candidates using\"top_20_carts\" co-visitation matrix\n        aids2 = list(itertools.chain(*[top_20_buys[aid] for aid in unique_buys if aid in top_20_buys]))\n        for aid in aids2: aids_temp[aid] += 0.1\n        sorted_aids = [k for k,v in aids_temp.most_common(20)]\n        return sorted_aids\n    \n    # Use \"cart order\" and \"clicks\" co-visitation matrices\n    aids1 = list(itertools.chain(*[top_20_clicks[aid] for aid in unique_aids if aid in top_20_clicks]))\n    aids2 = list(itertools.chain(*[top_20_buys[aid] for aid in unique_aids if aid in top_20_buys]))\n    \n    # RERANK CANDIDATES\n    top_aids2 = [aid2 for aid2, cnt in Counter(aids1+aids2).most_common(20) if aid2 not in unique_aids] \n    result = unique_aids + top_aids2[:20 - len(unique_aids)]\n    \n    # USE TOP20 TEST ORDERS\n    return result + list(top_carts)[:20-len(result)]","metadata":{"execution":{"iopub.status.busy":"2022-11-29T16:13:13.917307Z","iopub.execute_input":"2022-11-29T16:13:13.917953Z","iopub.status.idle":"2022-11-29T16:13:13.932666Z","shell.execute_reply.started":"2022-11-29T16:13:13.917917Z","shell.execute_reply":"2022-11-29T16:13:13.931761Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"def suggest_buys(df):\n    \n    # USER HISTORY AIDS AND TYPES\n    aids=df.aid.tolist()\n    types = df.type.tolist()\n    \n    # UNIQUE AIDS AND UNIQUE BUYS\n    unique_aids = list(dict.fromkeys(aids[::-1] ))\n    df = df.loc[(df['type']==1)|(df['type']==2)]\n    unique_buys = list(dict.fromkeys( df.aid.tolist()[::-1] ))\n    \n    # RERANK CANDIDATES USING WEIGHTS\n    if len(unique_aids)>=20:\n        weights=np.logspace(0.5,1,len(aids),base=2, endpoint=True)-1\n        aids_temp = Counter() \n        \n        # RERANK BASED ON REPEAT ITEMS AND TYPE OF ITEMS\n        for aid,w,t in zip(aids,weights,types): \n            aids_temp[aid] += w * type_weight_multipliers[t]\n        \n        # RERANK CANDIDATES USING \"BUY2BUY\" CO-VISITATION MATRIX\n        aids3 = list(itertools.chain(*[top_20_buy2buy[aid] for aid in unique_buys if aid in top_20_buy2buy]))\n        for aid in aids3: aids_temp[aid] += 0.1\n        sorted_aids = [k for k,v in aids_temp.most_common(20)]\n        return sorted_aids\n   \n    # USE \"CART ORDER\" CO-VISITATION MATRIX\n    aids2 = list(itertools.chain(*[top_20_buys[aid] for aid in unique_aids if aid in top_20_buys]))\n    # USE \"BUY2BUY\" CO-VISITATION MATRIX\n    aids3 = list(itertools.chain(*[top_20_buy2buy[aid] for aid in unique_buys if aid in top_20_buy2buy]))\n    # RERANK CANDIDATES\n    top_aids2 = [aid2 for aid2, cnt in Counter(aids2+aids3).most_common(20) if aid2 not in unique_aids] \n    result = unique_aids + top_aids2[:20 - len(unique_aids)]\n    # USE TOP20 TEST ORDERS\n    return result + list(top_orders)[:20-len(result)]","metadata":{"execution":{"iopub.status.busy":"2022-11-29T16:13:13.935969Z","iopub.execute_input":"2022-11-29T16:13:13.936255Z","iopub.status.idle":"2022-11-29T16:13:13.949894Z","shell.execute_reply.started":"2022-11-29T16:13:13.936229Z","shell.execute_reply":"2022-11-29T16:13:13.948832Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"markdown","source":"# Create Submission CSV\nInferring test data with Pandas groupby is slow. We need to accelerate the following code.","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[]}},{"cell_type":"code","source":"%%time\n\npred_df_clicks = test_df.sort_values([\"session\", \"ts\"]).groupby([\"session\"]).apply(\n    lambda x: suggest_clicks(x)\n)\n\npred_df_carts = test_df.sort_values([\"session\", \"ts\"]).groupby([\"session\"]).apply(\n    lambda x: suggest_carts(x)\n)\n\npred_df_buys = test_df.sort_values([\"session\", \"ts\"]).groupby([\"session\"]).apply(\n    lambda x: suggest_buys(x)\n)","metadata":{"_cell_guid":"b1076dfc-b9ad-4769-8c92-a6c4dae69d19","_uuid":"8f2839f25d086af736a60e9eeb907d3b93b6e0e5","papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T16:13:13.951261Z","iopub.execute_input":"2022-11-29T16:13:13.951619Z","iopub.status.idle":"2022-11-29T17:07:52.481342Z","shell.execute_reply.started":"2022-11-29T16:13:13.951583Z","shell.execute_reply":"2022-11-29T17:07:52.480212Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"clicks_pred_df = pd.DataFrame(pred_df_clicks.add_suffix(\"_clicks\"), columns=[\"labels\"]).reset_index()\norders_pred_df = pd.DataFrame(pred_df_buys.add_suffix(\"_orders\"), columns=[\"labels\"]).reset_index()\ncarts_pred_df = pd.DataFrame(pred_df_carts.add_suffix(\"_carts\"), columns=[\"labels\"]).reset_index()","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T17:07:52.482757Z","iopub.execute_input":"2022-11-29T17:07:52.483255Z","iopub.status.idle":"2022-11-29T17:07:55.896213Z","shell.execute_reply.started":"2022-11-29T17:07:52.483216Z","shell.execute_reply":"2022-11-29T17:07:55.895200Z"},"trusted":true},"execution_count":null,"outputs":[]},{"cell_type":"code","source":"pred_df = pd.concat([clicks_pred_df, orders_pred_df, carts_pred_df])\npred_df.columns = [\"session_type\", \"labels\"]\npred_df[\"labels\"] = pred_df.labels.apply(lambda x: \" \".join(map(str,x)))\npred_df.to_csv(\"submission.csv\", index=False)\npred_df.head()","metadata":{"papermill":{"duration":null,"end_time":null,"exception":null,"start_time":null,"status":"pending"},"tags":[],"execution":{"iopub.status.busy":"2022-11-29T17:07:55.897592Z","iopub.execute_input":"2022-11-29T17:07:55.898685Z","iopub.status.idle":"2022-11-29T17:08:40.586789Z","shell.execute_reply.started":"2022-11-29T17:07:55.898642Z","shell.execute_reply":"2022-11-29T17:08:40.585166Z"},"trusted":true},"execution_count":null,"outputs":[]}]}