{"id":1488,"date":"2016-02-21T22:52:57","date_gmt":"2016-02-21T14:52:57","guid":{"rendered":"http:\/\/www.storagelab.org.cn\/zhangdi\/?p=1488"},"modified":"2016-02-21T22:52:57","modified_gmt":"2016-02-21T14:52:57","slug":"immens-%e5%ae%9e%e6%97%b6%e7%9a%84%e5%a4%a7%e6%95%b0%e6%8d%ae%e5%8f%af%e8%a7%86%e6%9f%a5%e8%af%a2%e5%b7%a5%e5%85%b7","status":"publish","type":"post","link":"https:\/\/www.divis.cn\/index.php\/2016\/02\/21\/immens-%e5%ae%9e%e6%97%b6%e7%9a%84%e5%a4%a7%e6%95%b0%e6%8d%ae%e5%8f%af%e8%a7%86%e6%9f%a5%e8%af%a2%e5%b7%a5%e5%85%b7\/","title":{"rendered":"imMens: \u5b9e\u65f6\u7684\u5927\u6570\u636e\u53ef\u89c6\u67e5\u8be2\u5de5\u5177"},"content":{"rendered":"

\u6700\u8fd1\u8fd9\u6bb5\u65f6\u95f4\u5fd9\u4e8e\u5199\u8bba\u6587\uff0c\u6240\u4ee5\u535a\u5ba2\u65ad\u66f4\u4e862\u4e2a\u6708\u3002\u8fd1\u671f\u6211\u6253\u7b97\u628a\u4e00\u4e9b\u8fd9\u6bb5\u65f6\u95f4\u770b\u8fc7\u7684\u3001\u4e2a\u4eba\u8ba4\u4e3a\u7279\u522b\u5177\u6709\u53c2\u8003\u4ef7\u503c\u7684\u6587\u7ae0\u505a\u4e2apaper report\uff0c\u56e0\u4e3a\u901a\u8fc7\u5b9e\u8df5\uff0c\u53d1\u73b0\u8fd8\u662f\u8fd9\u79cd\u65b9\u6cd5\u505a\u7684\u6574\u7406\uff0c\u8bb0\u5fc6\u6700\u4e3a\u6df1\u523b\u3002<\/p>\n

imMens: Real-time Visual Querying of Big Data<\/strong><\/h3>\n

\uff08\u6b64\u6587\u662f\u65af\u5766\u798f\u53ef\u89c6\u5316\u5c0f\u7ec4\u53d1\u8868\u5728\u6b27\u6d32\u53ef\u89c6\u5316\u4f1a\u8baeEuroVis 2013\u4e0a\u7684\u4e00\u7bc7\u6587\u7ae0\u3002\u5728\u6211\u67e5\u8be2data cube\u3001visualization\u76f8\u5173\u6587\u732e\u65f6\uff0c\u4ece\u53e6\u4e00\u7bc7\u6587\u7ae0\uff1aBandlimited OLAP cubes for interactive big data visualization\u7684\u53c2\u8003\u6587\u732e\u5904\u8ffd\u6eaf\u800c\u6765\uff0c\u53d1\u73b0\u5bf9\u4e8e\u6211\u73b0\u5728\u7684\u7814\u7a76\u5185\u5bb9\u800c\u8a00\uff0c\u8fd9\u7bc7\u6587\u7ae0\u66f4\u5177\u6709\u53c2\u8003\u4ef7\u503c\u3002\uff09<\/p>\n

\u5bf9\u4e8e\u5904\u7406Big Data\uff0c\u73b0\u6709\u7684\u4ea4\u4e92\u5f0f\u53ef\u89c6\u5316\u65b9\u6cd5\u9762\u4e34\u7740\u7528\u6237\u611f\u77e5\u7684\u53ef\u6269\u5c55\u6027\u548c\u4ea4\u4e92\u80fd\u529b\u7684\u53ef\u6269\u5c55\u6027\u7684\u4e0d\u8db3(perceptual and interactive scalability )\u3002\u5176\u4e2d\uff0c\u5173\u4e8eBig\u7684\u5b9a\u4e49\uff0c\u53ef\u89c6\u5316\u7814\u7a76\u8005\u901a\u5e38\u4ee5\u4e00\u767e\u4e07\u6216\u66f4\u591a\u7684\u6570\u636e\u4f5c\u4e3a\u4e00\u4e2a\u9608\u503c\uff1b\u7528\u6237\u611f\u77e5\u7684\u53ef\u6269\u5c55\u6027\uff0c\u6307\u7684\u662f\u53ef\u89c6\u5316\u7cfb\u7edf\u65b9\u4fbf\u8bfb\u8005\u83b7\u5f97\u77e5\u8bc6\u7684\u80fd\u529b\uff0c\u5728\u8fd9\u65b9\u9762Big Data\u52a0\u5267\u4e86\u63d0\u9ad8\u53ef\u8bfb\u6027\u4e0e\u4fdd\u7559\u7ec6\u8282\u4e4b\u95f4\u7684\u77db\u76fe\uff1b\u4ea4\u4e92\u7684\u53ef\u6269\u5c55\u6027\uff0c\u6307\u53ef\u89c6\u5316\u7cfb\u7edf\u652f\u6301\u67e5\u8be2\u3001\u8fc7\u6ee4\u3001\u7f29\u653e\u3001\u9009\u62e9\u7b49\u4ea4\u4e92\u63a2\u7d22\u65b9\u5f0f\u7684\u80fd\u529b\uff0c\u8fd9\u65b9\u9762Big Data\u52a0\u5267\u4e86\u9ad8\u5ef6\u8fdf\uff0c\u5bfc\u81f4\u4e86\u4ea4\u4e92\u64cd\u4f5c\u7684\u4e0d\u6d41\u7545\u3002\u4e3a\u4e86\u89e3\u51b3\u4ee5\u4e0a\u95ee\u9898\uff0c\u65af\u5766\u798f\u5927\u5b66\u548c\u6e05\u534e\u5927\u5b66\u7684\u7814\u7a76\u4eba\u5458\uff0c\u63d0\u51fa\u4e86imMens\u7cfb\u7edf\uff0c\u4e00\u4e2a\u5178\u578b\u7684\u6d4f\u89c8\u5668\/\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u67b6\u6784\uff0c\u53ef\u4ee5\u5bf9\u4e0a\u4ebf\u6761\u8bb0\u5f55\u8fdb\u884c\u9ad8\u901f\u5904\u7406\u548c\u6e32\u67d3\uff0c\u5e76\u628a\u6d4f\u89c8\u5668\u4e2d\u7684\u4ea4\u4e92\u64cd\u4f5c\u4e0b\u7684\u56fe\u5f62\u6e32\u67d3\u901f\u5ea6\u7ef4\u6301\u5728\u6bcf\u79d250\u5e27\u3002\u5176\u6240\u7528\u7684\u7406\u5ff5\u3001\u6280\u672f\u65b9\u6cd5\u975e\u5e38\u5177\u6709\u524d\u77bb\u6027\u3002<\/p>\n

\u4e3a\u4e86\u5b9e\u73b0\u4ee5\u4e0a\u76ee\u6807\uff0c\u8be5\u7cfb\u7edf\u7684\u7814\u7a76\u4eba\u5458\u9075\u5faa\u5982\u4e0b\u539f\u5219\u8fdb\u884c\u8bbe\u8ba1\uff1a\u7528\u6237\u611f\u77e5\u7684\u53ef\u6269\u5c55\u6027\u548c\u4ea4\u4e92\u80fd\u529b\u7684\u53ef\u6269\u5c55\u6027\uff0c\u5e94\u5f53\u7531\u6570\u636e\u7684\u5206\u8fa8\u7387\u6240\u9650\u5236\uff0c\u800c\u4e0d\u662f\u7531\u8bb0\u5f55\u7684\u6570\u91cf\u6240\u9650\u5236\u3002<\/strong>\u6bd5\u7adf\u76f4\u63a5\u5728\u7535\u8111\u5c4f\u5e55\u4e0a\u5448\u73b01\u4ebf\u4e2a\u70b9\uff0c\u662f\u795e\u4ed9\u4e5f\u5f97\u770b\u6655\uff0c\u800c\u4e14\u673a\u5668\u5904\u7406\u4e5f\u5f88\u56f0\u96be\u3002\u6240\u4ee5\uff0c\u4e00\u65b9\u9762\u9700\u8981\u4f7f\u7528\u8fc7\u6ee4\u3001\u62bd\u6837\u548c\u805a\u96c6\u7b49\u65b9\u6cd5\u6765\u964d\u4f4e\u6570\u636e\u89c4\u6a21\uff0c\u5b9e\u73b0\u591a\u4e2a\u5206\u8fa8\u7387\u4e0b\u591a\u4e2a\u53ef\u89c6\u5316\u7b49\u7ea7\uff0c\u4ee5\u5f3a\u5316\u611f\u77e5\u6269\u5c55\u6027\uff1b\u53e6\u4e00\u65b9\u9762\uff0c\u901a\u8fc7\u5b9e\u73b0\u5b9e\u65f6\u7684\u6570\u636e\u67e5\u8be2\u6765\u5feb\u901f\u54cd\u5e94\u7528\u6237\u7684\u4ea4\u4e92\u64cd\u4f5c\uff0c\u4ee5\u63d0\u9ad8\u4ea4\u4e92\u7684\u53ef\u6269\u5c55\u6027\u3002\u6587\u7ae0\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5177\u4f53\u65b9\u6848\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u5176\u4e2d\u6709\u4e09\u4e2a\u91cd\u70b9\u6280\u672f\u503c\u5f97\u6ce8\u610f\uff1a<\/p>\n

\u5176\u4e00\uff0c\u4f7f\u7528\u5206\u7ec4\u805a\u5408(binned aggregation)<\/i>\u964d\u4f4e\u6570\u636e\u89c4\u6a21\u3002<\/strong><\/h3>\n

\u964d\u4f4e\u6570\u636e\u89c4\u6a21\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u4f8b\u5982\u8fc7\u6ee4\uff0c\u62bd\u6837\uff0c\u6a21\u578b\u62df\u5408\uff0c\u5206\u7ec4\uff08filtering, sampling, \u00a0model-fitting, binned aggregation\uff09\u3002\u5176\u4e2d\uff0c\u8fc7\u6ee4\u548c\u62bd\u6837\u4f1a\u4e22\u5931\u79bb\u7fa4\u503c\uff0c\u6a21\u578b\u62df\u5408\u53ea\u9488\u5bf9\u7279\u5b9a\u7684\u5e94\u7528\u573a\u5408\u3002\u800c\u5206\u7ec4\u805a\u5408\u540c\u65f6\u4fdd\u7559\u4e86\u5168\u5c40\u6a21\u5f0f\uff08\u4f8b\u5982\uff0c\u5bc6\u5ea6\uff09\u548c\u5c40\u90e8\u7279\u5f81\uff08\u4f8b\u5982\uff0c\u79bb\u7fa4\u503c\uff09\uff0c\u540c\u65f6\u901a\u8fc7\u9009\u62e9\u5206\u7ec4\u5927\u5c0f\u7684\u65b9\u5f0f\u5141\u8bb8\u591a\u4e2a\u5206\u8fa8\u7387\u7b49\u7ea7\u3002<\/p>\n

\u5206\u7ec4\u805a\u5408\u7684\u5177\u4f53\u63aa\u65bd\u662f\uff0c\u5bf9\u4e8e\u987a\u5e8f\u548c\uff08\u6392\u5e8f\uff09\u7c7b\u540d\u6570\u636e\uff0c\u6bcf\u4e2a\u79bb\u6563\u503c\u5c31\u662f\u4e00\u4e2a\u5206\u7ec4\uff1b\u5bf9\u4e8e\u6570\u503c\u6570\u636e\uff0c\u5219\u5728\u4e00\u4e2a\u8fde\u7eed\u8303\u56f4\u5185\u5206\u7ec4\u4e3a\u76f8\u90bb\u7684\u533a\u95f4\uff1b\u65f6\u5e8f\u503c\u5219\u6309\u65f6\u95f4\u7c92\u5ea6\u5206\u7ec4\uff1a\u5e74\uff0c\u6708\uff0c\u5468\uff0c\u65e5\uff0c\u65f6\uff0c\u7b49\uff1b\u5bf9\u4e8e\u5730\u7406\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u7ef4\u5217\u540d\u5355\u4f4d\u4f8b\u5982\u5dde\u548c\u56fd\u5bb6\u4f5c\u4e3a\u552f\u4e00\u7684\u5206\u7ec4\uff0c\u5982\u679c\u4f4d\u7f6e\u662f\u7528\u7ecf\u7eac\u5ea6\u6807\u8bc6\u7684\u70b9\uff0c\u53ef\u4ee5\u7528\u5b83\u7684\u6295\u5f71\u7a7a\u95f4\u5750\u6807\u6765\u5206\u7ec4\uff0c\u4f8b\u5982\u9ea6\u5361\u6258\u6295\u5f71\uff0c\u4f7f\u7528\u5730\u56fe\u670d\u52a1\u63d0\u4f9b\u5546\u5982google map\u63d0\u4f9b\u7684map tile\u5373\u53ef\u3002\u6700\u540e\uff0c\u518d\u5efa\u7acb\u591a\u4e2a\u4e0d\u540c\u9897\u7c92\u7b49\u7ea7\u7684\u5206\u7ec4\uff08grained bins\uff09\u6765\u652f\u6301\u7f29\u653e\u548c\u4f4d\u79fb\u7b49\u4ea4\u4e92\u64cd\u4f5c\u3002<\/p>\n

<\/p>\n

\u4e0a\u56fe\u7ed9\u51fa\u4e86\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\u57281\u7ef4\u30012\u7ef4\u4e0b\u5e38\u7528\u53ef\u89c6\u5316\u65b9\u6848\u3002<\/p>\n

\"\"<\/p>\n

\u4e0a\u56fefigure2\u662f\u4e00\u4e2a\u5c06\u5206\u7ec4\u805a\u5408\u7684\u6548\u679c\u5177\u4f53\u5230\u53ef\u89c6\u5316\u5448\u73b0\u4e0a\u7684\u5f88\u597d\u7684\u4f8b\u5b50\u3002(a)\u8868\u793a\u4e86\u4e00\u4e2a\u5305\u542b10\u4e07\u4e2a\u8bb0\u5f55\u76842\u7ef4\u6570\u503c\u578b\u53d8\u91cf\u4f7f\u7528\u539f\u59cb\u7684\u6563\u70b9\u56fe\u5448\u73b0\u7684\u6548\u679c\uff1b(b)\u5bf9\u539f\u59cb\u8bb0\u5f55\u70b9\u4f7f\u7528\u516d\u8fb9\u5f62\u505a\u5206\u7ec4\u805a\u5408\uff0c\u5e76\u4e14\u7528\u989c\u8272\u7f16\u7801\u4e86\u70b9\u5bc6\u5ea6\uff1b(c)\u4f7f\u7528\u77e9\u5f62\u5206\u7ec4\uff0c\u53ef\u4ee5\u770b\u5230\u5b83\u4e0e\u516d\u8fb9\u5f62\u5206\u7ec4\u5dee\u8ddd\u4e0d\u5927\uff1b(d)\u5728(c)\u7684\u57fa\u7840\u4e0a\uff0c\u91c7\u7528\u4e86\u5f3a\u5316\u611f\u77e5\u7684\u914d\u8272\u65b9\u6848\u3002<\/p>\n

\u6b64\u5904\u7684\u914d\u8272\u65b9\u6848\u4e5f\u5f88\u503c\u5f97\u53c2\u8003\u3002\u5176\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n

<\/p>\n

\u5176\u4e2dY\u662f\u56fe\u4e2d\u67d0\u4e00\u533a\u57df\u4e0a\u4f60\u8981\u7f16\u7801\u7684\u989c\u8272\u5c5e\u6027\uff08\u5982\u9971\u548c\u5ea6\u3001\u4e0d\u900f\u660e\u5ea6\u6216\u8005\u4eae\u5ea6\uff09\u503c\uff0c\u4ecb\u4e8e[0,1]\u4e4b\u95f4\u3002x <\/i>\u662f\u8be5\u70b9\u4f60\u8981\u8868\u793a\u7684\u6570\u636e\u5c5e\u6027\uff08\u5bf9\u4e8e\u4e0a\u56fe\u800c\u8a00\u662f\u5bc6\u5ea6\uff09\u3002\u901a\u5e38\uff0c\u6211\u4eec\u5728\u7f16\u7a0b\u4e2d\u6240\u7528\u7684\u51fd\u6570\u662fY=(X-Xmax)\/(Xmax – Xmin)\uff0c\u5373X\u4e0eY\u5448\u7ebf\u6027\u5173\u7cfb\u3002\u4f46\u662f\uff0c\u8fd9\u79cd\u7b80\u5355\u7ebf\u6027\u914d\u8272\u65b9\u6848\u6709\u4e24\u4e2a\u95ee\u9898\uff0c\u5176\u4e00\u662fY\u503c\uff08\u5982\u4eae\u5ea6\u3001\u4e0d\u900f\u660e\u5ea6\uff09\u4e0e\u4eba\u773c\u7684\u5b9e\u9645\u611f\u77e5\u5e76\u4e0d\u662f\u5448\u7b80\u5355\u7ebf\u6027\u5173\u7cfb\u3002\u5bf9\u6b64\uff0c\u672c\u6587\u5f15\u5165\u4e86\u975e\u7ebf\u6027\u53c2\u6570\u03b3\u00a0\uff0c\u9ed8\u8ba4\u503c\u662f1\/3,\u00a0\u4ee5\u7acb\u65b9\u6839\u62df\u5408\uff0c\u8fd9\u6837\u53cd\u800c\u4f1a\u4f7f\u4eba\u773c\u89c2\u6d4b\u6570\u636e\u65f6\u611f\u77e5\u5230\u7ebf\u6027\u7684\u53d8\u5316\uff0c\u5c31\u50cfCIELAB\u8272\u5f69\u7a7a\u95f4\u4e2d\u5bf9\u4eae\u5ea6\u901a\u9053\u7684\u5904\u7406\u4e00\u6837\u3002\u7b2c\u4e8c\u662f\u5bf9\u4e8eBig Data\uff0c\u6700\u5927\u7684X\u503c\u4e0e\u6700\u5c0f\u7684\u975e\u96f6X\u503c\u53ef\u80fd\u5dee\u8ddd\u5f88\u5927\uff0c\u4e3a\u4e86\u4f7f\u6700\u5c0f\u7684\u975e\u96f6X\u503c\u4e5f\u80fd\u88ab\u8bc6\u522b\uff0c\u6709\u5fc5\u8981\u5b9a\u4e49\u4e00\u4e2a\u6700\u5c0f\u975e\u96f6X\u503c\u7684\u9ed8\u8ba4\u8272\u5f69\u503c\uff0c\u8fd9\u5c31\u662f\u53c2\u6570\u03b1\u3002\u6309\u7167\u6b64\u914d\u8272\u65b9\u6848\u4f5c\u51fa\u7684\u56fefigure2(d)\uff0c\u6548\u679c\u786e\u5b9e\u660e\u663e\u4f18\u4e8e\u5176\u4ed6\u3002<\/p>\n

\u5176\u4e8c\uff0c\u4f7f\u7528\u591a\u5143\u6570\u636e\u7816\uff08Multivariate Data Tiles\uff09\u5904\u7406\u6570\u636e\u3002<\/strong><\/h3>\n

\u867d\u7136\u4f7f\u7528\u5206\u7ec4\u805a\u5408\u6709\u6548\u5730\u964d\u4f4e\u4e86\u6570\u636e\u89c4\u6a21\uff0c\u4f46\u662f\u5982\u679c\u6570\u636e\u7ef4\u5ea6\u5f88\u9ad8\uff0c\u90a3\u4e48\u6570\u636e\u603b\u91cf\u4f9d\u7136\u4f1a\u5f88\u5927\uff0c\u5bf9\u4e8e\u67e5\u8be2\u548c\u6e32\u67d3\u4f9d\u7136\u662f\u5f88\u5927\u7684\u6311\u6218\u3002\u4e3a\u6b64\uff0c\u5fc5\u987b\u5bf9\u6570\u636e\u96c6\u8fdb\u884c\u8fdb\u4e00\u6b65\u7684\u5206\u89e3\u3002<\/p>\n

<\/p>\n

\u4f8b\u5982\uff0c\u672c\u6587\u4f7f\u7528\u4e86\u9ed1\u8393\u624b\u673a\u7684\u7edf\u8ba1\u6570\u636e\u96c6\uff0c\u5236\u4f5c\u4e86\u5982\u4e0a\u56fe\u6240\u793a\u7684\u63a2\u7d22\u754c\u9762\uff0c\u5305\u542bmonth, day, hour, X, Y\u8fd95\u4e2a\u7ef4\u5ea6\uff0c\u53ef\u4ee5\u5206\u6790\u4e0d\u540c\u65f6\u95f4\u70b9\u4e0b\u7528\u6237\u7684\u5206\u5e03\u60c5\u51b5\u3002<\/p>\n

\"\"<\/p>\n

\u4e3a\u4e86\u652f\u6301\u4ea4\u4e92\uff0c\u53ef\u4ee5\u4f7f\u7528\u5728OLAP\u9886\u57df\u901a\u7528\u7684\u65b9\u6cd5\uff0c\u5efa\u7acb\u4e86\u4e00\u4e2a\u4e94\u7ef4\u6570\u636e\u7acb\u65b9\u3002\u4f46\u662f\uff0c\u50cf\u8fd9\u6837\u5b8c\u6574\u7684\u6570\u636e\u7acb\u65b9\u901a\u5e38\u8fc7\u4e8e\u5e9e\u5927\u4ee5\u81f3\u4e8e\u4e0d\u80fd\u5b8c\u5168\u5b58\u5165\u7f13\u5b58\u4ee5\u53ca\u505a\u5b9e\u65f6\u67e5\u8be2\u3002\u6570\u636e\u7acb\u65b9\u7684\u5927\u5c0f\u7b49\u4e8e\u220fi bi\uff0c\u5176\u4e2dbi\u662f\u6570\u636e\u7ef4\u5ea6i\u4e0b\u5206\u7ec4\uff08bins\uff09\u7684\u4e2a\u6570\u3002\u5982\u679c\u7ef4\u5ea6\u6570\u91cf\u6216\u8005\u67d0\u7ef4\u5ea6\u4e0a\u5206\u7ec4\u4e2a\u6570\u589e\u52a0\uff0c\u90a3\u4e48\u6574\u4e2a\u6570\u636e\u7acb\u65b9\u7684\u5927\u5c0f\u5c06\u53d8\u5f97\u96be\u4ee5\u63a7\u5236\u3002\u6240\u4ee5\uff0c\u5fc5\u987b\u5c06\u5b8c\u6574\u7684\u6570\u636e\u7acb\u65b9\u5206\u89e3\u4e3a\u5b50\u7acb\u65b9\u3002\u4f8b\u5982\uff0c\u9488\u5bf9\u8fd9\u4e00\u53ef\u89c6\u5316\u7cfb\u7edf\uff0c\u4f5c\u8005\u5c065\u7ef4\u6570\u636e\u7acb\u65b9\u5206\u89e3\u4e3a4\u4e2a\u4e09\u7ef4\u5b50\u7acb\u65b9\uff0c\u6708-\u65e5-\u65f6\uff0c\u6708-\u7ecf\u5ea6-\u7eac\u5ea6\uff0c\u65e5-\u7ecf\u5ea6-\u7eac\u5ea6\uff0c\u65f6-\u7ecf\u5ea6-\u7eac\u5ea6\uff0c\u5982\u4e0a\u56fefigure5(b)\u6240\u793a\u3002\u5047\u8bbe\u6bcf\u4e2a\u7ef4\u5ea6\u4e0a\u5206\u7ec4\u7684\u6570\u91cf\u4e3ab,\u90a3\u4e48\u6574\u4e2a\u6570\u636e\u5b58\u50a8\u5927\u5c0f\u5c31\u4eceb5<\/sup>\u53d8\u4e3a4b3<\/sup>\u3002\u5f62\u8c61\u5730\u8bf4\uff0c\u82e5b=50\uff0c\u90a3\u4e48\u6570\u636e\u7acb\u65b9\u7684\u5b58\u50a8\u7a7a\u95f4\u5c31\u4ece312.5M\u964d\u4f4e\u5230\u4e860.5M\u3002\u8fd9\u5927\u5927\u964d\u4f4e\u4e86\u6570\u636e\u5b58\u50a8\u89c4\u6a21\u3002<\/p>\n

\u4f46\u8bba\u6587\u4f5c\u8005\u5e76\u4e0d\u4ee5\u6b64\u4e3a\u6ee1\u8db3\uff0c\u56e0\u4e3a\u5355\u4e00\u7684\u5b50\u7acb\u65b9\u4e5f\u53ef\u80fd\u56e0\u4e3a\u5206\u7ec4\u6570\u91cf\u8fc7\u5927\u800c\u8fc7\u4e8e\u5e9e\u5927\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f5c\u8005\u501f\u7528\u5730\u56fe\u670d\u52a1\u4e2d\u5e38\u7528\u7684\u6570\u636e\u7816\uff08data tiles\uff09\u6982\u5ff5\uff0c\u5c06\u5b50\u7acb\u65b9\u518d\u5207\u5206\u4e3a\u6570\u4e2a\u6570\u636e\u6570\u636e\u7816\uff08data tiles\uff09\u3002<\/p>\n

\u8fd9\u91cc\u5148\u8bb2\u89e3\u4e00\u4e0b\u6570\u636e\u7816\uff08data tiles\uff09\uff1a\u6211\u4eec\u770b\u5230\u7684google map\uff0c \u9ad8\u5fb7\u5730\u56fe\u7b49\u5730\u7406\u4fe1\u606f\u670d\u52a1\u7cfb\u7edf\u7684\u524d\u7aef\u6a21\u5757\uff0c\u90fd\u4f7f\u7528\u4e86data tiles\uff0c\u5c06\u5e9e\u5927\u7684\u5730\u56fe\u56fe\u50cf\u6570\u636e\uff0c\u5206\u89e3\u4e3a\u82e5\u5e72\u4e2a\u5c0f\u56fe\u6765\u5904\u7406\u2014\u2014\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u4eec\u4f7f\u7528\u8fd9\u4e9b\u5730\u56fe\u670d\u52a1\u65f6\u7ecf\u5e38\u770b\u5230\u5730\u56fe\u56fe\u50cf\u662f\u4e00\u5c0f\u5757\u4e00\u5c0f\u5757\u52a0\u8f7d\u7684\u3002\u4e0d\u8fc7\uff0c\u672c\u6587\u4e2d\u6240\u63d0\u51fa\u7684data tiles\u4e0e\u5730\u56fe\u670d\u52a1\u4e2d\u7684data tiles\u6709\u4e24\u5904\u4e0d\u540c\uff1a\u5176\u4e00\u662f\u672c\u6587\u6240\u7528\u7684data tiles\u89c6\u4e3a\u4e86\u4e86\u8fdb\u884c\u52a8\u6001\u7684\u53ef\u89c6\u5316\u800c\u51c6\u5907\u7684\uff0c\u5e76\u4e0d\u662f\u5df2\u7ecf\u9884\u5904\u7406\u597d\u7684\u56fe\u50cf\uff1b\u5176\u4e8c\u662f\u672c\u6587\u6240\u7528\u7684data tiles\u5305\u542b\u591a\u7ef4\u6570\u636e\uff0c\u4e0d\u4ec5\u662f\u4e3a\u4e86\u5e2e\u52a9\u67e5\u8be2\uff0c\u4e5f\u662f\u4e3a\u4e86\u8f85\u52a9\u6e32\u67d3\u3002\u6b64\u5916\uff0c\u5728\u7d22\u5f15\u65b9\u5f0f\u4e0a\uff0c\u8fd9\u4e24\u8005\u662f\u7c7b\u4f3c\u7684\u3002\u6bcf\u4e2adata tiles\u90fd\u4ee5Dbs<\/sub>-be<\/sub>-z\u7684\u65b9\u5f0f\u7d22\u5f15\u3002\u5176\u4e2dD\u662f\u6570\u636e\u7ef4\u5ea6\uff0cbs\u8868\u793a\u7684\u662f\u8be5\u7ef4\u5ea6\u4e0a\u8d77\u70b9\u5206\u7ec4(bin)\u7f16\u53f7\uff0cbe\u662f\u7ec8\u70b9\u5206\u7ec4\u7684\u7f16\u53f7\uff0cz\u662f\u7f29\u653e\u7684\u5206\u8fa8\u7387\u7b49\u7ea7\u3002<\/p>\n

\u4e4b\u540e\uff0c\u6587\u7ae0\u5c55\u793a\u4e86\u5c06\u6570\u636e\u7acb\u65b9(data cube)\u6700\u7ec8\u5207\u5206\u4e3a\u6570\u636e\u7816(data tiles)\u7684\u597d\u5904\uff1a\u5f53\u8fdb\u884c\u4e00\u4e2a\u8303\u56f4\u67e5\u8be2\u65f6\uff0c\u53ea\u9700\u8981\u7528\u5212\u5206\u7684\u5c0f\u5757\u5bf9\u8fd9\u4e2a\u8303\u56f4\u8fdb\u884c\u62fc\u63a5\u5c31\u53ef\u4ee5\u4e86\uff0c\u4e0d\u9700\u8981\u5bf9\u6574\u4e2a\u6570\u636e\u7a7a\u95f4\u8fdb\u884c\u641c\u7d22\u3002\u4f8b\u5982\uff0c\u5728\u4e0a\u9762\u90a3\u4e2a\u9ed1\u8393\u624b\u673a\u5206\u5e03\u7684\u53ef\u89c6\u5316\u7cfb\u7edf\u4e2d\uff0c\u5982\u679c\u7528\u6237\u8981\u9009\u62e9\u5730\u56fe\u4e0a\u7684\u70b9\u5e76\u5c06\u4e4b\u5728\u65e5\u671f\u76f4\u65b9\u56fe(day histogram)\u4e2d\u9ad8\u4eae\uff08\u5373\u6240\u8c13\u7684brushing & linking \u64cd\u4f5c\uff09\uff0c\u90a3\u4e48\u53ea\u9700\u8981\u56de\u6eda\u8ba1\u7b97\u5305\u542bX*Y*day\u7684\u6570\u636e\u7816\u5e76\u8ba1\u7b97\u5668\u603b\u548c\u3002\u4e0b\u56fefigure6\u8868\u660e\u4e86\u8ba1\u7b97\u8fc7\u7a0b\uff1a\u53ea\u9700\u8981\u628a\u76f8\u5173\u7684\u56db\u4e2a\u6570\u636e\u7816\u6cbf\u7740X\uff0cY\u7ef4\u5ea6\u505a\u7d2f\u52a0\u8ba1\u7b97\u5373\u53ef\u3002\u800c\u8fd9\u79cd\u7d2f\u52a0\u8ba1\u7b97\uff0c\u53ea\u9488\u5bf9\u6bcf\u4e2a\u6570\u636e\u7816data tile,\u4e0d\u5b58\u5728\u987a\u5e8f\u5173\u7cfb\uff0c\u4e3amap reduce\u5f0f\u7684\u5e76\u884c\u8ba1\u7b97\u63d0\u4f9b\u4e86\u53ef\u80fd\u3002\u5bf9\u4e8e\u7f29\u653e\u548c\u4f4d\u79fb\u8fd9\u4e00\u7c7b\u7684\u4ea4\u4e92\u64cd\u4f5c\uff0c\u5219\u53d6\u51fa\u53d6\u51fa\u5176\u4ed6\u5206\u8fa8\u7387\u7b49\u7ea7\u7684\u5206\u7ec4\u7684\u6570\u636e\u7816\uff0c\u5c31\u50cfgoogle map\u7684\u5730\u56fe\u670d\u52a1\u5668\u90a3\u6837\u3002<\/p>\n

<\/p>\n

\u5176\u4e09\uff0c\u4f7f\u7528webGL\u5728\u6d4f\u89c8\u5668\u7aef\u5b9e\u73b0\u57fa\u4e8eGPU\u7684\u5e76\u884c\u6570\u636e\u8ba1\u7b97<\/strong><\/h3>\n

\u5728\u6700\u7ec8\u5b9e\u73b0\u4e0a\uff0cimMens\u662f\u4e00\u4e2a\u670d\u52a1\u5668-\u6d4f\u89c8\u5668\u7684B\/S\u67b6\u6784\u7684Big Data\u53ef\u89c6\u5316\u63a2\u7d22\u7cfb\u7edf\u3002\u53ea\u8981\u7ed9\u51fa\u4e00\u4e2a\u53ef\u89c6\u5316\u5b9a\u4e49\uff08\u8fd9\u4e00\u6b65\u9700\u8981\u624b\u5de5\u5199\u4ee3\u7801\u5b8c\u6210\uff09\uff0c\u90a3\u4e48imMens\u5c31\u4f1a\u5728\u540e\u7aef\u8ba1\u7b97\u597d\u6570\u636e\u7816\uff0c\u7136\u540e\u6839\u636e\u9700\u8981\u628a\u6570\u636e\u53d1\u7ed9\u524d\u7aef\u7684\u73b0\u4ee3\u6d4f\u89c8\u5668\u4e0a\u3002<\/p>\n

\u5982\u524d\u6587\u6240\u8ff0\uff0c\u53d1\u6765\u7684\u6570\u636e\u7816\u4e0d\u662f\u6e32\u67d3\u597d\u7684\u56fe\u5f62\uff0c\u800c\u662f\u5206\u7ec4\u6570\u636e\uff0c\u56e0\u6b64\u5e76\u4e0d\u80fd\u76f4\u63a5\u5728\u6d4f\u89c8\u5668\u7aef\u663e\u793a\uff0c\u9700\u8981\u4f9d\u8d56\u73b0\u4ee3\u6d4f\u89c8\u5668\u6765\u8fdb\u884c\u8ba1\u7b97\u548c\u6e32\u67d3\u540e\u624d\u80fd\u663e\u793a\u548c\u4ea4\u4e92\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u57fa\u4e8e\u5b89\u5168\u7684\u539f\u56e0\uff0c\u5bf9\u4e8e\u6d4f\u89c8\u5668\u7aef\u7684\u6e32\u67d3\u548c\u8ba1\u7b97\uff0c\u6211\u4eec\u53ea\u80fd\u7528\u8bf8\u5982javascript\u8bed\u8a00\u63a7\u5236\u5927\u81f4\u903b\u8f91\uff0c\u4e0d\u80fd\u505a\u5230\u5185\u5b58\u7f16\u8f91\u548c\u5904\u7406\u5e76\u884c\u5355\u5143\uff0c\u56e0\u6b64\u5f88\u96be\u505a\u5230\u5e76\u884c\u8ba1\u7b97\u63d0\u9ad8\u6e32\u67d3\u6548\u7387\u3002\u4f46\u662f\u6b64\u6587\u63d0\u51fa\u4e86\u4e00\u4e2a\u975e\u5e38\u503c\u5f97\u53c2\u8003\u7684\u610f\u89c1\uff1a\u5728\u670d\u52a1\u5668\u7aef\u5c06\u6570\u636e\u7816\u6620\u5c04\u4e3apng\u683c\u5f0f\u56fe\u7247\u540e\u53d1\u7ed9\u524d\u7aef\u6d4f\u89c8\u5668\uff0c\u524d\u7aef\u4f7f\u7528webGL\u8ba1\u7b97\u6570\u636e\u548c\u6e32\u67d3\u56fe\u5f62\uff0c\u6700\u7ec8\u7ed3\u679c\u4f1a\u653e\u5728\u4e00\u4e2aHTML5 canvas\u5143\u7d20\u4e0a\u3002\u4ee5\u4e0a\u5177\u4f53\u6b65\u9aa4\u5982\u56fefigure 8\u6240\u793a\u3002\u6bd5\u7adfwebGL\u662f\u76ee\u524d\u552f\u4e00\u4e00\u4e2a\u53ef\u4ee5\u8c03\u7528GPU\u529f\u80fd\u7684\u6807\u51c6\u7c7b\u5e93\uff0c\u4f7f\u7528GPU\u505a\u6570\u503c\u8ba1\u7b97\u4e5f\u662f\u7ecf\u5178\u7684\u505a\u6cd5\u3002\u4ee5\u4e0a\u65b9\u6848\u4ece\u800c\u5145\u5206\u5229\u7528\u524d\u7aef\u5b58\u50a8\u7a7a\u95f4\u548cGPU\u7684\u5e76\u884c\u8ba1\u7b97\u80fd\u529b\u3002<\/p>\n

\"\"<\/p>\n

\u9664\u6b64\u4ee5\u5916\uff0cimMens\u7cfb\u7edf\u8fd8\u7528\u4e86leaflet\u6e32\u67d3\u5730\u56fe\u3001D3\u6e32\u67d3\u5750\u6807\u8f74\u548c\u6587\u672c\u6846\u3002\u4ed6\u4eec\u4ee3\u7801\u662f\u5f00\u6e90\u7684\uff0c\u53ef\u4ee5\u5230\u8fd9\u91cc\u4e0b\u8f7d\uff1ahttps:\/\/github.com\/StanfordHCI\/imMens<\/p>\n

\u00a0\u603b\u7ed3<\/strong><\/h3>\n

\u672c\u6587\u63d0\u51fa\u4e86\u4e00\u79cd\u9488\u5bf9\u5927\u89c4\u6a21\u6570\u636e\u7684\u5feb\u901f\u53ef\u89c6\u5316\u67e5\u8be2\u7cfb\u7edfimMens\uff0c\u5e76\u901a\u8fc7\u5b9e\u9a8c\u8bc1\u660e\u5176\u65b9\u6cd5\u7684\u9ad8\u6548\u6027\u3002imMens\u6240\u7528\u7684\u7406\u5ff5\uff0c\u4f7f\u7528\u5206\u7ec4\u805a\u5408(binned aggregation)<\/i>\u964d\u4f4e\u6570\u636e\u89c4\u6a21\uff0c\u4f7f\u7528\u591a\u5143\u6570\u636e\u7816\uff08Multivariate Data Tiles\uff09\u5904\u7406\u6570\u636e\uff0c\u548c\u4f7f\u7528webGL\u5728\u6d4f\u89c8\u5668\u7aef\u5b9e\u73b0\u57fa\u4e8eGPU\u7684\u5e76\u884c\u6570\u636e\u8ba1\u7b97\u3002\u6587\u4e2d\u63d0\u5230\u4ed6\u4eec\u672a\u6765\u7684\u5de5\u4f5c\u662f1\uff09\u6839\u636e\u53ef\u7528\u8d44\u6e90\u81ea\u52a8\u4f18\u5316\u5ba2\u6237\u7aef\u7684\u53ef\u89c6\u5316\u89c4\u683c\uff08\u5305\u62ec\u8981\u6c42\u7684\u7ef4\u5ea6\u548c\u5206\u7ec4\u6570\uff09\uff1b2\uff09\u63d0\u4f9b\u4e00\u4e2a\u7c7b\u4f3ctableau\u7684\u53ef\u89c6\u5316\u521b\u5efa\u754c\u9762\u3002\u4ee5\u4e0a\u5185\u5bb9\u5bf9\u6211\u76ee\u524d\u7684\u5de5\u4f5c\u90fd\u5177\u6709\u6781\u5927\u7684\u53c2\u8003\u4ef7\u503c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6700\u8fd1\u8fd9\u6bb5\u65f6\u95f4\u5fd9\u4e8e\u5199\u8bba\u6587\uff0c\u6240\u4ee5\u535a\u5ba2\u65ad\u66f4\u4e862<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[110,154],"class_list":["post-1488","post","type-post","status-publish","format-standard","hentry","category-data-visualization","tag-110","tag-154"],"_links":{"self":[{"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/posts\/1488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1488"}],"version-history":[{"count":0,"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/posts\/1488\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.divis.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}