{"id":56218,"date":"2025-08-14T14:44:26","date_gmt":"2025-08-14T06:44:26","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/56218.html"},"modified":"2025-08-14T14:44:26","modified_gmt":"2025-08-14T06:44:26","slug":"gnn%e8%ae%ad%e7%bb%83%ef%bc%9a%e9%85%8d%e9%80%81%e6%9c%80%e7%9f%ad%e8%b7%af%e5%be%84%e6%8e%a8%e8%8d%90%e6%96%b9%e6%a1%88%e6%a8%a1%e5%9e%8b%e8%ae%ad%e7%bb%83%e6%95%b0%e6%8d%ae%e5%87%86%e5%a4%87","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/56218.html","title":{"rendered":"GNN\u8bad\u7ec3\uff1a\u914d\u9001\u6700\u77ed\u8def\u5f84\u63a8\u8350\u65b9\u6848\u6a21\u578b\u8bad\u7ec3\u6570\u636e\u51c6\u5907\u8be6\u89e3"},"content":{"rendered":"

GNN\u5728\u8fd0\u8f93\u6700\u77ed\u8def\u5f84\u53ca\u914d\u9001\u8def\u5f84\u63a8\u8350\u4e2d\u7684\u6570\u636e\u4e0e\u7ed3\u679c<\/h2>\n

\u5728\u8fd0\u8f93\u573a\u666f\u4e2d，GNN（\u56fe\u795e\u7ecf\u7f51\u7edc）\u53ef\u901a\u8fc7\u5b66\u4e60\u8def\u7f51\u56fe\u7ed3\u6784\u7684\u7279\u5f81，\u5b9e\u73b0\u6700\u77ed\u8def\u5f84\u8ba1\u7b97\u548c\u914d\u9001\u8def\u5f84\u63a8\u8350\u3002\u4ee5\u4e0b\u4ece\u6570\u636e\u5b57\u6bb5\u3001\u6a21\u578b\u5e94\u7528\u53ca\u7ed3\u679c\u793a\u4f8b\u4e09\u65b9\u9762\u5177\u4f53\u8bf4\u660e：<\/p>\n

\u4e00\u3001\u8fd0\u8f93\u573a\u666f\u7684\u6838\u5fc3\u6570\u636e\u5b57\u6bb5（\u9002\u914d GNN \u8f93\u5165）<\/h4>\n

1. \u8282\u70b9\u6570\u636e（\u5bf9\u5e94\u8def\u7f51\u4e2d\u7684\u5173\u952e\u70b9\u4f4d）<\/h5>\n\n\u5b57\u6bb5\u540d\u542b\u4e49\u8bf4\u660e\u5728\u8def\u5f84\u63a8\u8350\u4e2d\u7684\u4f5c\u7528<\/tr>\n\n\n\n\n
node_id<\/td>\n\u8282\u70b9\u552f\u4e00\u6807\u8bc6（\u5982\u4ed3\u5e93 ID\u3001\u914d\u9001\u70b9 ID）<\/td>\n\u5b9a\u4f4d\u8def\u5f84\u4e2d\u7684\u5173\u952e\u8282\u70b9，\u4f5c\u4e3a\u8def\u5f84\u5e8f\u5217\u7684\u8d77\u70b9\u3001\u9014\u7ecf\u70b9\u6216\u7ec8\u70b9<\/td>\n<\/tr>\n
node_type<\/td>\n\u8282\u70b9\u7c7b\u578b（\u5982 \u201c\u4ed3\u5e93\u201d\u201c\u5c45\u6c11\u533a\u201d\u201c\u5546\u4e1a\u533a\u201d）<\/td>\n\u533a\u5206\u8282\u70b9\u529f\u80fd，GNN \u53ef\u9488\u5bf9\u6027\u5b66\u4e60\u4e0d\u540c\u7c7b\u578b\u8282\u70b9\u7684\u914d\u9001\u9700\u6c42（\u5982\u5546\u4e1a\u533a\u65f6\u6548\u8981\u6c42\u66f4\u9ad8）<\/td>\n<\/tr>\n
node_features<\/td>\n\u8282\u70b9\u5c5e\u6027（\u7ecf\u7eac\u5ea6\u3001\u6d77\u62d4\u3001\u5f00\u653e\u65f6\u95f4\u7b49）<\/td>\n\u4e3a GNN \u63d0\u4f9b\u8282\u70b9\u5730\u7406\u7279\u5f81\u548c\u7ea6\u675f\u6761\u4ef6（\u5982\u914d\u9001\u70b9\u7684\u65f6\u95f4\u7a97[8:00-18:00]\u5f71\u54cd\u8def\u5f84\u65f6\u5e8f\u5b89\u6392）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
2. \u8fb9\u6570\u636e（\u5bf9\u5e94\u8def\u7f51\u4e2d\u7684\u9053\u8def \/ \u822a\u7ebf）<\/h5>\n\n\u5b57\u6bb5\u540d\u542b\u4e49\u8bf4\u660e\u5728\u8def\u5f84\u63a8\u8350\u4e2d\u7684\u4f5c\u7528<\/tr>\n\n\n\n\n\n\n
edge_id<\/td>\n\u8fb9\u552f\u4e00\u6807\u8bc6（\u5982\u8def\u6bb5 ID）<\/td>\n\u552f\u4e00\u6807\u8bb0\u8def\u6bb5，\u4fbf\u4e8e\u8ffd\u6eaf\u8def\u5f84\u4e2d\u7684\u5177\u4f53\u9053\u8def<\/td>\n<\/tr>\n
source\/target_node_id<\/td>\n\u8fb9\u8fde\u63a5\u7684\u8d77\u59cb \/ \u76ee\u6807\u8282\u70b9 ID<\/td>\n\u5b9a\u4e49\u8def\u7f51\u62d3\u6251\u5173\u7cfb，\u662f GNN \u5b66\u4e60\u8282\u70b9\u95f4\u8fde\u901a\u6027\u7684\u57fa\u7840<\/td>\n<\/tr>\n
edge_type<\/td>\n\u8fb9\u7c7b\u578b（\u5982 \u201c\u9ad8\u901f\u516c\u8def\u201d\u201c\u57ce\u5e02\u4e3b\u5e72\u9053\u201d\u201c\u6b65\u884c\u8857\u201d）<\/td>\n\u533a\u5206\u9053\u8def\u901a\u884c\u7279\u6027（\u5982\u6b65\u884c\u8857\u7981\u6b62\u8d27\u8f66\u901a\u884c），GNN \u53ef\u636e\u6b64\u8fc7\u6ee4\u65e0\u6548\u8def\u5f84<\/td>\n<\/tr>\n
edge_weight<\/td>\n\u8fb9\u7684\u57fa\u7840\u6743\u91cd（\u5982\u8ddd\u79bb \/km\u3001\u901a\u884c\u65f6\u95f4 \/min）<\/td>\n\u4f5c\u4e3a\u8def\u5f84\u6210\u672c\u7684\u6838\u5fc3\u6307\u6807，GNN \u901a\u8fc7\u5b66\u4e60\u6743\u91cd\u7279\u5f81\u4f18\u5316 \u201c\u6700\u77ed\u8ddd\u79bb\u201d \u6216 \u201c\u6700\u77ed\u65f6\u95f4\u201d \u76ee\u6807<\/td>\n<\/tr>\n
edge_features<\/td>\n\u8fb9\u7684\u52a8\u6001\u5c5e\u6027（\u5b9e\u65f6\u8def\u51b5\u3001\u9650\u901f\u3001\u62e5\u5835\u7cfb\u6570\u7b49）<\/td>\n\u4e3a GNN \u63d0\u4f9b\u52a8\u6001\u7ea6\u675f（\u5982\u62e5\u5835\u7cfb\u65701.5\u8868\u793a\u5f53\u524d\u901a\u884c\u65f6\u95f4\u4e3a\u57fa\u7840\u65f6\u95f4\u7684 1.5 \u500d），\u652f\u6301\u52a8\u6001\u8def\u5f84\u8c03\u6574<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
3. \u8f85\u52a9\u7ea6\u675f\u5b57\u6bb5（\u9002\u914d\u914d\u9001\u573a\u666f\u7684\u591a\u76ee\u6807\u4f18\u5316）<\/h5>\n\n\u5b57\u6bb5\u540d\u542b\u4e49\u8bf4\u660e\u5728\u8def\u5f84\u63a8\u8350\u4e2d\u7684\u4f5c\u7528<\/tr>\n\n\n\n
time_window<\/td>\n\u8282\u70b9\u7684\u65f6\u95f4\u7ea6\u675f（\u5982[9:00-11:00]）<\/td>\nGNN \u5728\u8def\u5f84\u6392\u5e8f\u65f6\u9700\u6ee1\u8db3\u914d\u9001\u70b9\u7684\u65f6\u95f4\u7a97\u9650\u5236，\u907f\u514d\u8d85\u65f6<\/td>\n<\/tr>\n
load_limit<\/td>\n\u8fb9\u7684\u8f7d\u91cd\u9650\u5236（\u5982 \u201c5 \u5428\u4ee5\u4e0b\u201d）<\/td>\n\u7ed3\u5408\u8f66\u8f86\u8f7d\u91cd，GNN \u53ef\u8fc7\u6ee4\u8d85\u8f7d\u8def\u6bb5，\u63a8\u8350\u7b26\u5408\u8f66\u578b\u7684\u8def\u5f84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\u3001GNN \u5982\u4f55\u7528\u4e8e\u914d\u9001\u8def\u5f84\u63a8\u8350？<\/h4>\n
  • \n

    \u56fe\u7ed3\u6784\u6784\u5efa：<\/p>\n

    \u5c06\u8fd0\u8f93\u7f51\u7edc\u62bd\u8c61\u4e3a\u56fe（\u8282\u70b9 = \u70b9\u4f4d，\u8fb9 = \u9053\u8def），GNN \u901a\u8fc7\u591a\u5c42\u6d88\u606f\u4f20\u9012，\u5b66\u4e60\u8282\u70b9\u95f4\u7684 \u201c\u5173\u8054\u7279\u5f81\u201d（\u5982 \u201c\u4ed3\u5e93 A \u5230\u914d\u9001\u70b9 B \u7684\u6700\u4f18\u8def\u5f84\u53ef\u80fd\u7ecf\u8fc7\u8282\u70b9 C\u201d）\u3002<\/p>\n<\/li>\n

  • \n

    \u6838\u5fc3\u4f18\u5316\u76ee\u6807：<\/p>\n<\/li>\n

      \n
    • \n

      \u57fa\u7840\u76ee\u6807：\u6700\u5c0f\u5316\u603b\u8ddd\u79bb \/ \u603b\u65f6\u95f4（\u57fa\u4e8eedge_weight）；<\/p>\n<\/li>\n

    • \n

      \u7ea6\u675f\u76ee\u6807：\u6ee1\u8db3\u65f6\u95f4\u7a97（time_window）\u3001\u8f7d\u91cd\u9650\u5236（load_limit）\u7b49；<\/p>\n<\/li>\n

    • \n

      \u52a8\u6001\u8c03\u6574：\u7ed3\u5408edge_features\u4e2d\u7684\u5b9e\u65f6\u62e5\u5835\u6570\u636e，GNN \u53ef\u6eda\u52a8\u66f4\u65b0\u8def\u5f84（\u5982\u907f\u5f00\u7a81\u53d1\u62e5\u5835\u8def\u6bb5）\u3002<\/p>\n<\/li>\n<\/ul>\n

    • \n

      \u76f8\u6bd4\u4f20\u7edf\u7b97\u6cd5（\u5982 Dijkstra）\u7684\u4f18\u52bf：<\/p>\n

      GNN \u80fd\u540c\u65f6\u5b66\u4e60\u8def\u7f51\u7684\u9759\u6001\u62d3\u6251（\u5982\u9053\u8def\u8fde\u63a5\u5173\u7cfb）\u548c\u52a8\u6001\u7279\u5f81（\u5982\u65f6\u6bb5\u6027\u62e5\u5835\u89c4\u5f8b），\u5728\u591a\u7ea6\u675f\u573a\u666f（\u5982\u540c\u65f6\u4f18\u5316\u8ddd\u79bb\u548c\u65f6\u6548）\u4e2d\u8868\u73b0\u66f4\u4f18\u3002<\/p>\n<\/li>\n

      \u4e09\u3001\u914d\u9001\u8def\u5f84\u63a8\u8350\u7684 GNN \u8f93\u51fa\u7ed3\u679c\u793a\u4f8b<\/h4>\n

      \u5047\u8bbe\u67d0\u914d\u9001\u4efb\u52a1\u7684\u9700\u6c42\u4e3a：\u4ece\u4ed3\u5e93（node_001）\u51fa\u53d1，\u4f9d\u6b21\u914d\u9001\u81f3 3 \u4e2a\u76ee\u6807\u70b9（node_101\/node_102\/node_103），GNN \u8f93\u51fa\u7684\u63a8\u8350\u8def\u5f84\u7ed3\u679c\u5982\u4e0b：<\/p>\n\n\u63a8\u8350\u8def\u5f84\u5e8f\u5217（node_id）\u603b\u8ddd\u79bb（km）\u603b\u65f6\u95f4（min）\u5173\u952e\u7ea6\u675f\u6ee1\u8db3\u60c5\u51b5\u8def\u5f84\u7279\u5f81\u8bf4\u660e<\/tr>\n\n\n\n
      001 \u2192 102 \u2192 101 \u2192 103<\/td>\n28.5<\/td>\n65<\/td>\n\u6240\u6709\u8282\u70b9\u65f6\u95f4\u7a97\u5747\u6ee1\u8db3<\/td>\n\u4f18\u5148\u9009\u62e9edge_type=\u9ad8\u901f\u516c\u8def\u7684\u8def\u6bb5，\u907f\u5f00\u62e5\u5835\u7cfb\u6570 > 1.2 \u7684\u9053\u8def<\/td>\n<\/tr>\n
      001 \u2192 101 \u2192 102 \u2192 103（\u5907\u9009）<\/td>\n31.2<\/td>\n72<\/td>\n\u8282\u70b9 102 \u65f6\u95f4\u7a97\u4e34\u754c\u8fbe\u6807（17:50 \u9001\u8fbe）<\/td>\n\u9014\u7ecf\u8def\u6bb5edge_features\u4e2d\u5305\u542b\u5145\u7535\u6869，\u9002\u914d\u7535\u52a8\u914d\u9001\u8f66<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
      \u7ed3\u679c\u89e3\u8bfb：<\/h5>\n
        \n
      • \n

        \u8def\u5f84\u5e8f\u5217：\u901a\u8fc7node_id\u7684\u6709\u5e8f\u6392\u5217，\u660e\u786e\u914d\u9001\u5148\u540e\u987a\u5e8f；<\/p>\n<\/li>\n

      • \n

        \u6210\u672c\u6307\u6807：\u603b\u8ddd\u79bb\u548c\u603b\u65f6\u95f4\u57fa\u4e8eedge_weight\u7d2f\u52a0\u8ba1\u7b97，\u53cd\u6620\u8def\u5f84\u7ecf\u6d4e\u6027；<\/p>\n<\/li>\n

      • \n

        \u7ea6\u675f\u6ee1\u8db3：GNN \u5728\u8bad\u7ec3\u4e2d\u5df2\u5b66\u4e60time_window\u7b49\u5b57\u6bb5\u7684\u7ea6\u675f，\u7ed3\u679c\u786e\u4fdd\u7b26\u5408\u4e1a\u52a1\u89c4\u5219；<\/p>\n<\/li>\n

      • \n

        \u52a8\u6001\u9002\u914d：\u82e5\u5b9e\u65f6\u8def\u51b5\u66f4\u65b0（\u5982edge_features\u4e2dnode_102\u81f3node_101\u7684\u62e5\u5835\u7cfb\u6570\u5347\u81f3 1.8），GNN \u53ef\u5feb\u901f\u5207\u6362\u81f3\u5907\u9009\u8def\u5f84\u3002<\/p>\n<\/li>\n<\/ul>\n

        \u901a\u8fc7\u4e0a\u8ff0\u6570\u636e\u5b57\u6bb5\u548c GNN \u6a21\u578b，\u53ef\u5b9e\u73b0\u517c\u987e\u6548\u7387\u3001\u7ea6\u675f\u548c\u52a8\u6001\u53d8\u5316\u7684\u667a\u80fd\u914d\u9001\u8def\u5f84\u63a8\u8350，\u5c24\u5176\u9002\u7528\u4e8e\u590d\u6742\u57ce\u5e02\u8def\u7f51\u6216\u591a\u8282\u70b9\u914d\u9001\u573a\u666f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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