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{
"cells": [
{
"cell_type": "code",
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"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
" seq next len_seq \\\n",
"0 [3442, 3448, 3451, 97, 180, 78, 3300, 152, 340... 3462 10 \n",
"1 [3448, 3451, 97, 180, 78, 3300, 152, 3401, 185... 3354 10 \n",
"2 [3451, 97, 180, 78, 3300, 152, 3401, 185, 3462... 274 10 \n",
"3 [97, 180, 78, 3300, 152, 3401, 185, 3462, 3354... 3276 10 \n",
"4 [180, 78, 3300, 152, 3401, 185, 3462, 3354, 27... 3225 10 \n",
"... ... ... ... \n",
"151051 [129, 2411, 1033, 204, 498, 3242, 3505, 3224, ... 1734 10 \n",
"151052 [2411, 1033, 204, 498, 3242, 3505, 3224, 2524,... 1945 10 \n",
"151053 [1033, 204, 498, 3242, 3505, 3224, 2524, 1099,... 1134 10 \n",
"151054 [3431, 2808, 3214, 3284, 3001, 800, 2636, 3581... 2636 7 \n",
"151055 [14, 58, 3510, 15, 68, 86, 3238, 2411, 1134, 2... 1073 10 \n",
"\n",
" review \\\n",
"0 [Maybe a niche thing, but it has solid gamepla... \n",
"1 [Borderlands at its core is spectacular: the g... \n",
"2 [You get to be the hero of the people WHILE bl... \n",
"3 [The game is far from perfect, I could point o... \n",
"4 [Very instructive', \"There's a ton of stuff wr... \n",
"... ... \n",
"151051 [This game is the best when I was bored playin... \n",
"151052 [I don't even know where to begin on how good ... \n",
"151053 [BrainBread 2 has really fun single player bec... \n",
"151054 [Starting the game, you will go into an area w... \n",
"151055 [Think the original Doom but with more awesome... \n",
"\n",
" next_review \n",
"0 I played to the end, I feel obligated to recom... \n",
"1 I was pretty shocked by how much I liked this ... \n",
"2 words cant explain how good this game is GET I... \n",
"3 best game i ever bought a rts with actual play... \n",
"4 Extremely punishing game, but every death is p... \n",
"... ... \n",
"151051 I had this game since it first came out \n",
"151052 give me a reason to actually hate white people. \n",
"151053 Heroes and Generals is a really fun game but r... \n",
"151054 The game is fun it's a cool concept, and I lik... \n",
"151055 It's Wasted Potential but still a pretty good ... \n",
"\n",
"[151056 rows x 5 columns]\n"
]
}
],
"source": [
"import pandas as pd\n",
"\n",
"# 读取pickle文件\n",
"df = pd.read_pickle(\"./train_data.df\")\n",
"\n",
"# 打印数据框\n",
"print(df)"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
" seq next len_seq \\\n",
"0 [1221, 899, 490, 1985, 255, 3058, 3119, 2930, ... 1417 10 \n",
"1 [3448, 855, 2710, 6, 2694, 3581, 3581, 3581, 3... 2694 5 \n",
"2 [3255, 3399, 3330, 3500, 2729, 1335, 68, 1866,... 642 10 \n",
"3 [273, 3462, 2656, 2033, 3333, 3284, 2110, 470,... 470 8 \n",
"4 [3284, 1134, 2992, 727, 3442, 831, 6, 76, 2899... 2899 9 \n",
"... ... ... ... \n",
"1189 [6, 2986, 2683, 495, 3580, 3171, 234, 164, 2, ... 2853 10 \n",
"1190 [2262, 2694, 1358, 883, 2174, 6, 2683, 1604, 4... 1478 10 \n",
"1191 [150, 1099, 3488, 3580, 2725, 3171, 535, 1622,... 206 10 \n",
"1192 [206, 6, 52, 3272, 204, 926, 498, 2712, 2496, ... 3202 10 \n",
"1193 [3251, 3300, 1822, 150, 2160, 2046, 6, 1038, 2... 1602 10 \n",
"\n",
" review \\\n",
"0 [Really nice game, Would recommend!, meh, This... \n",
"1 [finished it, its good but after i finished it... \n",
"2 [Paradox Interactive\\tdouble the price for alm... \n",
"3 [Nice, Combat system can be better, All the fu... \n",
"4 [9/10, 10/10, 9/10, 10/10, -99999/10, 9/10, id... \n",
"... ... \n",
"1189 [RDM simulator, 192 cubic tonnes of mud simula... \n",
"1190 [do I have a brain?, 18+, relationship of Park... \n",
"1191 [For DC, Любителям Аниме., 123, Ну такое., Hor... \n",
"1192 [Peed all over my dog then I started the game.... \n",
"1193 [Great for a few hours until you beat it., Fun... \n",
"\n",
" next_review \n",
"0 HUGE improvements on graphics and gameplay and... \n",
"1 ok. \n",
"2 Unstable \n",
"3 You've probably already heard that this game i... \n",
"4 10/10 \n",
"... ... \n",
"1189 best game ever made simulator \n",
"1190 new vision, new way \n",
"1191 Кратко: мужик живёт с мамой в маленьком фургоне \n",
"1192 Story mode kinda sucks but the rest of the gam... \n",
"1193 While being free-to-play, Robocraft seems very... \n",
"\n",
"[1194 rows x 5 columns]\n"
]
}
],
"source": [
"# 读取pickle文件\n",
"df = pd.read_pickle(\"./Test_data.df\")\n",
"\n",
"# 打印数据框\n",
"print(df)"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
"interaction_pairs = []\n",
"\n",
"for idx, row in df.iterrows():\n",
" user_id = idx # 如果你有显式的用户ID，这里应该使用那个用户ID\n",
" items = row['seq'] + [row['next']]\n",
" for item in items:\n",
" interaction_pairs.append((user_id, item))\n",
"\n",
"# 转换成DataFrame\n",
"interaction_df = pd.DataFrame(interaction_pairs, columns=['user_id', 'item_id'])"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Interaction Density: 0.0031\n"
]
}
],
"source": [
"# 创建用户-项矩阵\n",
"user_item_matrix = pd.crosstab(interaction_df['user_id'], interaction_df['item_id'])\n",
"\n",
"# 计算非零元素的比例来确定稠密度\n",
"non_zero_count = user_item_matrix.astype(bool).sum().sum() # 计算非零元素的总数\n",
"total_elements = user_item_matrix.size # 矩阵中元素的总数\n",
"\n",
"interaction_density = non_zero_count / total_elements\n",
"print(f\"Interaction Density: {interaction_density:.4f}\")"
]
}
],
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"kernelspec": {
"display_name": "MOE4REC",
"language": "python",
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