{"id":1874,"date":"2023-05-11T18:35:22","date_gmt":"2023-05-11T18:35:22","guid":{"rendered":"https:\/\/feellikelearning.com\/?p=1874"},"modified":"2023-05-11T18:35:22","modified_gmt":"2023-05-11T18:35:22","slug":"generate-bloom-filter-using-python","status":"publish","type":"post","link":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/","title":{"rendered":"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter"},"content":{"rendered":"\n

bloom filter\u662f\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n

Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u5feb\u901f\u544a\u8bc9\u4f60\u67d0\u4e2a\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002<\/p>\n\n\n\n

Bloom filter \u7531\u5e03\u9686\u63d0\u51fa\u5e76\u57281970\u5e74\u53d1\u8868\uff0c\u5b83\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u5e94\u7528\u3002\u5b83\u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u521d\u59cb\u65f6\u6240\u6709\u7684\u4f4d\u90fd\u88ab\u7f6e\u4e3a0\u3002\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u4e3a\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\uff0c\u5e76\u5c06\u5bf9\u5e94\u4f4d\u7f6e\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002<\/p>\n\n\n\n

\u63d2\u5165\u5143\u7d20\u65f6\uff0c\u901a\u8fc7\u5bf9\u5143\u7d20\u5e94\u7528\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\uff0c\u53ef\u4ee5\u5f97\u5230\u591a\u4e2a\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u7d22\u5f15\u5bf9\u5e94\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002\u67e5\u8be2\u5143\u7d20\u65f6\uff0c\u540c\u6837\u5bf9\u5143\u7d20\u5e94\u7528\u54c8\u5e0c\u51fd\u6570\uff0c\u5f97\u5230\u76f8\u5e94\u7684\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u5982\u679c\u6240\u6709\u7684\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u90fd\u4e3a1\uff0c\u5219\u8bf4\u660e\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\uff1b\u5982\u679c\u4efb\u4f55\u4e00\u4e2a\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u4e3a0\uff0c\u5219\u53ef\u4ee5\u786e\u5b9a\u5143\u7d20\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002<\/p>\n\n\n\n

\u7531\u4e8e\u4f7f\u7528\u4e86\u591a\u4e2a\u54c8\u5e0c\u51fd\u6570\u548c\u4f4d\u6570\u7ec4\uff0cBloom filter \u5177\u6709\u8f83\u4f4e\u7684\u5185\u5b58\u5360\u7528\u548c\u5feb\u901f\u7684\u67e5\u8be2\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u8bef\u5224\u7387\uff08false positive\uff09\uff0c\u5373\u5728\u5224\u65ad\u5143\u7d20\u5b58\u5728\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u9519\u8bef\u5224\u65ad\u3002\u8fd9\u662f\u56e0\u4e3a\u4e0d\u540c\u5143\u7d20\u7684\u54c8\u5e0c\u51fd\u6570\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u65f6\u53ef\u80fd\u4ea7\u751f\u51b2\u7a81\uff0c\u5bfc\u81f4\u4f4d\u6570\u7ec4\u7684\u67d0\u4e9b\u4f4d\u7f6e\u540c\u65f6\u88ab\u8bbe\u7f6e\u4e3a1\uff0c\u4ece\u800c\u5f71\u54cd\u5224\u65ad\u7ed3\u679c\u3002<\/p>\n\n\n\n

Bloom filter \u4e3b\u8981\u5e94\u7528\u4e8e\u90a3\u4e9b\u5bf9\u67e5\u8be2\u901f\u5ea6\u8981\u6c42\u8f83\u9ad8\u3001\u53ef\u4ee5\u5bb9\u5fcd\u4e00\u5b9a\u7684\u8bef\u5224\u7387\u7684\u573a\u666f\uff0c\u4f8b\u5982\u7f51\u7edc\u7f13\u5b58\u3001\u5927\u89c4\u6a21\u6570\u636e\u96c6\u7684\u53bb\u91cd\u3001\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u7b49\u3002\u901a\u8fc7\u9002\u5f53\u8c03\u6574\u4f4d\u6570\u7ec4\u5927\u5c0f\u548c\u54c8\u5e0c\u51fd\u6570\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63a7\u5236\u8bef\u5224\u7387\u548c\u5185\u5b58\u5360\u7528\u3002<\/p>\n\n\n\n

bloom filter \u548c hash function\u6709\u4ec0\u4e48\u4e0d\u540c\uff1f<\/h2>\n\n\n\n

Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u548c\u54c8\u5e0c\u51fd\u6570\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u76ee\u7684\u4e0a\u6709\u4e00\u4e9b\u4e0d\u540c\u4e4b\u5904\uff1a<\/p>\n\n\n\n

  1. \u76ee\u7684\uff1aBloom filter \u7684\u4e3b\u8981\u76ee\u7684\u662f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u5feb\u901f\u7684\u5224\u65ad\u65b9\u5f0f\uff0c\u53ef\u4ee5\u544a\u8bc9\u4f60\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u8f83\u77ed\u7684\u56fa\u5b9a\u957f\u5ea6\u503c\uff0c\u5e38\u7528\u4e8e\u52a0\u5bc6\u3001\u6570\u636e\u552f\u4e00\u6027\u6821\u9a8c\u3001\u6563\u5217\u67e5\u627e\u7b49\u65b9\u9762\u3002<\/li>
  2. \u6570\u636e\u7ed3\u6784\uff1aBloom filter \u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u7531\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u7ec4\u6210\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\u3002\u54c8\u5e0c\u51fd\u6570\u901a\u5e38\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u5c06\u8f93\u5165\u6620\u5c04\u5230\u56fa\u5b9a\u957f\u5ea6\u7684\u8f93\u51fa\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u672c\u8eab\u5e76\u4e0d\u5305\u542b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ea\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u51fd\u6570\u3002<\/li>
  3. \u529f\u80fd\uff1aBloom filter \u7528\u4e8e\u5224\u65ad\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u7ed9\u51fa\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u7684\u7b54\u6848\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u5c06\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u548c\u8ba1\u7b97\uff0c\u901a\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u3002<\/li>
  4. \u51b2\u7a81\u548c\u8bef\u5224\uff1aBloom filter \u53ef\u80fd\u5b58\u5728\u54c8\u5e0c\u51b2\u7a81\uff0c\u5373\u4e0d\u540c\u5143\u7d20\u7ecf\u8fc7\u54c8\u5e0c\u51fd\u6570\u8ba1\u7b97\u540e\u6620\u5c04\u5230\u76f8\u540c\u7684\u4f4d\u6570\u7ec4\u4f4d\u7f6e\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8bef\u5224\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u51b2\u7a81\uff0c\u4ee5\u786e\u4fdd\u5728\u4e0d\u540c\u7684\u8f93\u5165\u4e0a\u4ea7\u751f\u4e0d\u540c\u7684\u8f93\u51fa\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u54c8\u5e0c\u51b2\u7a81\u662f\u96be\u4ee5\u5b8c\u5168\u907f\u514d\u7684\u3002<\/li><\/ol>\n\n\n\n

    \u603b\u7684\u6765\u8bf4\uff0cBloom filter \u662f\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5229\u7528\u54c8\u5e0c\u51fd\u6570\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\uff0c\u5e76\u901a\u8fc7\u591a\u6b21\u54c8\u5e0c\u6620\u5c04\u6765\u63d0\u4f9b\u5feb\u901f\u7684\u5143\u7d20\u5224\u65ad\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u72ec\u7acb\u7684\u8ba1\u7b97\u51fd\u6570\uff0c\u7528\u4e8e\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u56fa\u5b9a\u957f\u5ea6\u7684\u503c\uff0c\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u573a\u666f\u3002<\/p>\n\n\n\n

    \u7528Python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter<\/h2>\n\n\n\n

    \u9700\u8981\u5b89\u88c5pybloom_live<\/p>\n\n\n\n

    pip install pybloom_live<\/pre>\n\n\n\n
    Python\u5c0f\u811a\u672c<\/p>\n\n\n\n
    import sys\nimport pybloom_live\n\ndef generate_bloom_filter_signature(file_path, num_elements, false_positive_rate):\n    # Create a Bloom filter with the desired parameters\n    bloom_filter = pybloom_live.BloomFilter(capacity=num_elements, error_rate=false_positive_rate)\n\n    # Read the file and add its contents to the Bloom filter\n    with open(file_path, 'rb') as file:\n        while True:\n            chunk = file.read(4096)  # Read file in chunks\n            if not chunk:\n                break\n            bloom_filter.add(chunk)\n\n    # Return the Bloom filter signature\n    return bloom_filter.bitarray\n\n\nif __name__ == '__main__':\n    # Check if the file path is provided as a command line argument\n    if len(sys.argv) != 2:\n        print(\"Usage: python bloom_filter_signature.py <file_path>\")\n        sys.exit(1)\n\n    file_path = sys.argv[1]\n    num_elements = 100000  # Number of elements expected to be added to the Bloom filter\n    false_positive_rate = 0.1  # Desired false positive rate\n\n    signature = generate_bloom_filter_signature(file_path, num_elements, false_positive_rate)\n    print(f\"Bloom filter signature: {signature}\")\n<\/pre>\n\n\n\n
    \u4fdd\u5b58\u540e\u8fd9\u6837\u8fd0\u884c<\/p>\n\n\n\n
    python bloom_filter_signature.py path\/to\/your\/file.txt<\/pre>\n","protected":false},"excerpt":{"rendered":"
    bloom filter\u662f\u4ec0\u4e48\uff1f Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u5feb\u901f\u544a\u8bc9\u4f60\u67d0\u4e2a\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002 Bloom filter \u7531\u5e03\u9686\u63d0\u51fa\u5e76\u57281970\u5e74\u53d1\u8868\uff0c\u5b83\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u5e94\u7528\u3002\u5b83\u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u521d\u59cb\u65f6\u6240\u6709\u7684\u4f4d\u90fd\u88ab\u7f6e\u4e3a0\u3002\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u4e3a\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\uff0c\u5e76\u5c06\u5bf9\u5e94\u4f4d\u7f6e\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002 \u63d2\u5165\u5143\u7d20\u65f6\uff0c\u901a\u8fc7\u5bf9\u5143\u7d20\u5e94\u7528\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\uff0c\u53ef\u4ee5\u5f97\u5230\u591a\u4e2a\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u7d22\u5f15\u5bf9\u5e94\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002\u67e5\u8be2\u5143\u7d20\u65f6\uff0c\u540c\u6837\u5bf9\u5143\u7d20\u5e94\u7528\u54c8\u5e0c\u51fd\u6570\uff0c\u5f97\u5230\u76f8\u5e94\u7684\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u5982\u679c\u6240\u6709\u7684\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u90fd\u4e3a1\uff0c\u5219\u8bf4\u660e\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\uff1b\u5982\u679c\u4efb\u4f55\u4e00\u4e2a\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u4e3a0\uff0c\u5219\u53ef\u4ee5\u786e\u5b9a\u5143\u7d20\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002 \u7531\u4e8e\u4f7f\u7528\u4e86\u591a\u4e2a\u54c8\u5e0c\u51fd\u6570\u548c\u4f4d\u6570\u7ec4\uff0cBloom filter \u5177\u6709\u8f83\u4f4e\u7684\u5185\u5b58\u5360\u7528\u548c\u5feb\u901f\u7684\u67e5\u8be2\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u8bef\u5224\u7387\uff08false positive\uff09\uff0c\u5373\u5728\u5224\u65ad\u5143\u7d20\u5b58\u5728\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u9519\u8bef\u5224\u65ad\u3002\u8fd9\u662f\u56e0\u4e3a\u4e0d\u540c\u5143\u7d20\u7684\u54c8\u5e0c\u51fd\u6570\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u65f6\u53ef\u80fd\u4ea7\u751f\u51b2\u7a81\uff0c\u5bfc\u81f4\u4f4d\u6570\u7ec4\u7684\u67d0\u4e9b\u4f4d\u7f6e\u540c\u65f6\u88ab\u8bbe\u7f6e\u4e3a1\uff0c\u4ece\u800c\u5f71\u54cd\u5224\u65ad\u7ed3\u679c\u3002 Bloom filter \u4e3b\u8981\u5e94\u7528\u4e8e\u90a3\u4e9b\u5bf9\u67e5\u8be2\u901f\u5ea6\u8981\u6c42\u8f83\u9ad8\u3001\u53ef\u4ee5\u5bb9\u5fcd\u4e00\u5b9a\u7684\u8bef\u5224\u7387\u7684\u573a\u666f\uff0c\u4f8b\u5982\u7f51\u7edc\u7f13\u5b58\u3001\u5927\u89c4\u6a21\u6570\u636e\u96c6\u7684\u53bb\u91cd\u3001\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u7b49\u3002\u901a\u8fc7\u9002\u5f53\u8c03\u6574\u4f4d\u6570\u7ec4\u5927\u5c0f\u548c\u54c8\u5e0c\u51fd\u6570\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63a7\u5236\u8bef\u5224\u7387\u548c\u5185\u5b58\u5360\u7528\u3002 bloom filter \u548c hash function\u6709\u4ec0\u4e48\u4e0d\u540c\uff1f Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u548c\u54c8\u5e0c\u51fd\u6570\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u76ee\u7684\u4e0a\u6709\u4e00\u4e9b\u4e0d\u540c\u4e4b\u5904\uff1a \u76ee\u7684\uff1aBloom filter \u7684\u4e3b\u8981\u76ee\u7684\u662f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u5feb\u901f\u7684\u5224\u65ad\u65b9\u5f0f\uff0c\u53ef\u4ee5\u544a\u8bc9\u4f60\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u8f83\u77ed\u7684\u56fa\u5b9a\u957f\u5ea6\u503c\uff0c\u5e38\u7528\u4e8e\u52a0\u5bc6\u3001\u6570\u636e\u552f\u4e00\u6027\u6821\u9a8c\u3001\u6563\u5217\u67e5\u627e\u7b49\u65b9\u9762\u3002 \u6570\u636e\u7ed3\u6784\uff1aBloom filter \u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u7531\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u7ec4\u6210\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\u3002\u54c8\u5e0c\u51fd\u6570\u901a\u5e38\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u5c06\u8f93\u5165\u6620\u5c04\u5230\u56fa\u5b9a\u957f\u5ea6\u7684\u8f93\u51fa\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u672c\u8eab\u5e76\u4e0d\u5305\u542b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ea\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u51fd\u6570\u3002 \u529f\u80fd\uff1aBloom filter \u7528\u4e8e\u5224\u65ad\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u7ed9\u51fa\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u7684\u7b54\u6848\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u5c06\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u548c\u8ba1\u7b97\uff0c\u901a\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u3002 \u51b2\u7a81\u548c\u8bef\u5224\uff1aBloom filter \u53ef\u80fd\u5b58\u5728\u54c8\u5e0c\u51b2\u7a81\uff0c\u5373\u4e0d\u540c\u5143\u7d20\u7ecf\u8fc7\u54c8\u5e0c\u51fd\u6570\u8ba1\u7b97\u540e\u6620\u5c04\u5230\u76f8\u540c\u7684\u4f4d\u6570\u7ec4\u4f4d\u7f6e\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8bef\u5224\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u51b2\u7a81\uff0c\u4ee5\u786e\u4fdd\u5728\u4e0d\u540c\u7684\u8f93\u5165\u4e0a\u4ea7\u751f\u4e0d\u540c\u7684\u8f93\u51fa\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u54c8\u5e0c\u51b2\u7a81\u662f\u96be\u4ee5\u5b8c\u5168\u907f\u514d\u7684\u3002 \u603b\u7684\u6765\u8bf4\uff0cBloom filter \u662f\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5229\u7528\u54c8\u5e0c\u51fd\u6570\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\uff0c\u5e76\u901a\u8fc7\u591a\u6b21\u54c8\u5e0c\u6620\u5c04\u6765\u63d0\u4f9b\u5feb\u901f\u7684\u5143\u7d20\u5224\u65ad\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u72ec\u7acb\u7684\u8ba1\u7b97\u51fd\u6570\uff0c\u7528\u4e8e\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u56fa\u5b9a\u957f\u5ea6\u7684\u503c\uff0c\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u573a\u666f\u3002 \u7528Python\u7ed9\u6587\u4ef6\u751f\u6210bloom…
    Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[10,3],"tags":[],"yoast_head":"\n\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter | Feel Like Learning<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter | Feel Like Learning\" \/>\n<meta property=\"og:description\" content=\"bloom filter\u662f\u4ec0\u4e48\uff1f Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u5feb\u901f\u544a\u8bc9\u4f60\u67d0\u4e2a\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002 Bloom filter \u7531\u5e03\u9686\u63d0\u51fa\u5e76\u57281970\u5e74\u53d1\u8868\uff0c\u5b83\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u5e94\u7528\u3002\u5b83\u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u521d\u59cb\u65f6\u6240\u6709\u7684\u4f4d\u90fd\u88ab\u7f6e\u4e3a0\u3002\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u4e3a\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\uff0c\u5e76\u5c06\u5bf9\u5e94\u4f4d\u7f6e\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002 \u63d2\u5165\u5143\u7d20\u65f6\uff0c\u901a\u8fc7\u5bf9\u5143\u7d20\u5e94\u7528\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\uff0c\u53ef\u4ee5\u5f97\u5230\u591a\u4e2a\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u7d22\u5f15\u5bf9\u5e94\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002\u67e5\u8be2\u5143\u7d20\u65f6\uff0c\u540c\u6837\u5bf9\u5143\u7d20\u5e94\u7528\u54c8\u5e0c\u51fd\u6570\uff0c\u5f97\u5230\u76f8\u5e94\u7684\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u5982\u679c\u6240\u6709\u7684\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u90fd\u4e3a1\uff0c\u5219\u8bf4\u660e\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\uff1b\u5982\u679c\u4efb\u4f55\u4e00\u4e2a\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u4e3a0\uff0c\u5219\u53ef\u4ee5\u786e\u5b9a\u5143\u7d20\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002 \u7531\u4e8e\u4f7f\u7528\u4e86\u591a\u4e2a\u54c8\u5e0c\u51fd\u6570\u548c\u4f4d\u6570\u7ec4\uff0cBloom filter \u5177\u6709\u8f83\u4f4e\u7684\u5185\u5b58\u5360\u7528\u548c\u5feb\u901f\u7684\u67e5\u8be2\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u8bef\u5224\u7387\uff08false positive\uff09\uff0c\u5373\u5728\u5224\u65ad\u5143\u7d20\u5b58\u5728\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u9519\u8bef\u5224\u65ad\u3002\u8fd9\u662f\u56e0\u4e3a\u4e0d\u540c\u5143\u7d20\u7684\u54c8\u5e0c\u51fd\u6570\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u65f6\u53ef\u80fd\u4ea7\u751f\u51b2\u7a81\uff0c\u5bfc\u81f4\u4f4d\u6570\u7ec4\u7684\u67d0\u4e9b\u4f4d\u7f6e\u540c\u65f6\u88ab\u8bbe\u7f6e\u4e3a1\uff0c\u4ece\u800c\u5f71\u54cd\u5224\u65ad\u7ed3\u679c\u3002 Bloom filter \u4e3b\u8981\u5e94\u7528\u4e8e\u90a3\u4e9b\u5bf9\u67e5\u8be2\u901f\u5ea6\u8981\u6c42\u8f83\u9ad8\u3001\u53ef\u4ee5\u5bb9\u5fcd\u4e00\u5b9a\u7684\u8bef\u5224\u7387\u7684\u573a\u666f\uff0c\u4f8b\u5982\u7f51\u7edc\u7f13\u5b58\u3001\u5927\u89c4\u6a21\u6570\u636e\u96c6\u7684\u53bb\u91cd\u3001\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u7b49\u3002\u901a\u8fc7\u9002\u5f53\u8c03\u6574\u4f4d\u6570\u7ec4\u5927\u5c0f\u548c\u54c8\u5e0c\u51fd\u6570\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63a7\u5236\u8bef\u5224\u7387\u548c\u5185\u5b58\u5360\u7528\u3002 bloom filter \u548c hash function\u6709\u4ec0\u4e48\u4e0d\u540c\uff1f Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u548c\u54c8\u5e0c\u51fd\u6570\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u76ee\u7684\u4e0a\u6709\u4e00\u4e9b\u4e0d\u540c\u4e4b\u5904\uff1a \u76ee\u7684\uff1aBloom filter \u7684\u4e3b\u8981\u76ee\u7684\u662f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u5feb\u901f\u7684\u5224\u65ad\u65b9\u5f0f\uff0c\u53ef\u4ee5\u544a\u8bc9\u4f60\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u8f83\u77ed\u7684\u56fa\u5b9a\u957f\u5ea6\u503c\uff0c\u5e38\u7528\u4e8e\u52a0\u5bc6\u3001\u6570\u636e\u552f\u4e00\u6027\u6821\u9a8c\u3001\u6563\u5217\u67e5\u627e\u7b49\u65b9\u9762\u3002 \u6570\u636e\u7ed3\u6784\uff1aBloom filter \u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u7531\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u7ec4\u6210\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\u3002\u54c8\u5e0c\u51fd\u6570\u901a\u5e38\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u5c06\u8f93\u5165\u6620\u5c04\u5230\u56fa\u5b9a\u957f\u5ea6\u7684\u8f93\u51fa\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u672c\u8eab\u5e76\u4e0d\u5305\u542b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ea\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u51fd\u6570\u3002 \u529f\u80fd\uff1aBloom filter \u7528\u4e8e\u5224\u65ad\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u7ed9\u51fa\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u7684\u7b54\u6848\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u5c06\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u548c\u8ba1\u7b97\uff0c\u901a\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u3002 \u51b2\u7a81\u548c\u8bef\u5224\uff1aBloom filter \u53ef\u80fd\u5b58\u5728\u54c8\u5e0c\u51b2\u7a81\uff0c\u5373\u4e0d\u540c\u5143\u7d20\u7ecf\u8fc7\u54c8\u5e0c\u51fd\u6570\u8ba1\u7b97\u540e\u6620\u5c04\u5230\u76f8\u540c\u7684\u4f4d\u6570\u7ec4\u4f4d\u7f6e\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8bef\u5224\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u51b2\u7a81\uff0c\u4ee5\u786e\u4fdd\u5728\u4e0d\u540c\u7684\u8f93\u5165\u4e0a\u4ea7\u751f\u4e0d\u540c\u7684\u8f93\u51fa\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u54c8\u5e0c\u51b2\u7a81\u662f\u96be\u4ee5\u5b8c\u5168\u907f\u514d\u7684\u3002 \u603b\u7684\u6765\u8bf4\uff0cBloom filter \u662f\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5229\u7528\u54c8\u5e0c\u51fd\u6570\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\uff0c\u5e76\u901a\u8fc7\u591a\u6b21\u54c8\u5e0c\u6620\u5c04\u6765\u63d0\u4f9b\u5feb\u901f\u7684\u5143\u7d20\u5224\u65ad\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u72ec\u7acb\u7684\u8ba1\u7b97\u51fd\u6570\uff0c\u7528\u4e8e\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u56fa\u5b9a\u957f\u5ea6\u7684\u503c\uff0c\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u573a\u666f\u3002 \u7528Python\u7ed9\u6587\u4ef6\u751f\u6210bloom...Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Feel Like Learning\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-11T18:35:22+00:00\" \/>\n<meta name=\"author\" content=\"feellikelearning\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"feellikelearning\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\"},\"author\":{\"name\":\"feellikelearning\",\"@id\":\"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a\"},\"headline\":\"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter\",\"datePublished\":\"2023-05-11T18:35:22+00:00\",\"dateModified\":\"2023-05-11T18:35:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\"},\"wordCount\":41,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a\"},\"articleSection\":[\"Python\",\"\u7f16\u7a0b\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\",\"url\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\",\"name\":\"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter | Feel Like Learning\",\"isPartOf\":{\"@id\":\"https:\/\/feellikelearning.com\/#website\"},\"datePublished\":\"2023-05-11T18:35:22+00:00\",\"dateModified\":\"2023-05-11T18:35:22+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/feellikelearning.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/feellikelearning.com\/#website\",\"url\":\"https:\/\/feellikelearning.com\/\",\"name\":\"Feel Like Learning\",\"description\":\"\u7a0b\u5e8f\uff5c\u751f\u6d3b\uff5c\u5b66\u5230\u5c31\u662f\u8d5a\u5230\",\"publisher\":{\"@id\":\"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/feellikelearning.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a\",\"name\":\"feellikelearning\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/feellikelearning.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/72a1e86e9dcb0332e88bd7d54fd36c28?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/72a1e86e9dcb0332e88bd7d54fd36c28?s=96&d=mm&r=g\",\"caption\":\"feellikelearning\"},\"logo\":{\"@id\":\"https:\/\/feellikelearning.com\/#\/schema\/person\/image\/\"},\"url\":\"https:\/\/feellikelearning.com\/index.php\/author\/feellikelearning\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter | Feel Like Learning","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/","og_locale":"en_US","og_type":"article","og_title":"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter | Feel Like Learning","og_description":"bloom filter\u662f\u4ec0\u4e48\uff1f Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u5feb\u901f\u544a\u8bc9\u4f60\u67d0\u4e2a\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u4e00\u4e2a\u96c6\u5408\u4e2d\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002 Bloom filter \u7531\u5e03\u9686\u63d0\u51fa\u5e76\u57281970\u5e74\u53d1\u8868\uff0c\u5b83\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u5e94\u7528\u3002\u5b83\u7684\u6838\u5fc3\u662f\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u521d\u59cb\u65f6\u6240\u6709\u7684\u4f4d\u90fd\u88ab\u7f6e\u4e3a0\u3002\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u4e3a\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\uff0c\u5e76\u5c06\u5bf9\u5e94\u4f4d\u7f6e\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002 \u63d2\u5165\u5143\u7d20\u65f6\uff0c\u901a\u8fc7\u5bf9\u5143\u7d20\u5e94\u7528\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\uff0c\u53ef\u4ee5\u5f97\u5230\u591a\u4e2a\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u7d22\u5f15\u5bf9\u5e94\u7684\u4f4d\u8bbe\u7f6e\u4e3a1\u3002\u67e5\u8be2\u5143\u7d20\u65f6\uff0c\u540c\u6837\u5bf9\u5143\u7d20\u5e94\u7528\u54c8\u5e0c\u51fd\u6570\uff0c\u5f97\u5230\u76f8\u5e94\u7684\u4f4d\u6570\u7ec4\u7d22\u5f15\uff0c\u5982\u679c\u6240\u6709\u7684\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u90fd\u4e3a1\uff0c\u5219\u8bf4\u660e\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\uff1b\u5982\u679c\u4efb\u4f55\u4e00\u4e2a\u7d22\u5f15\u4f4d\u7f6e\u7684\u4f4d\u4e3a0\uff0c\u5219\u53ef\u4ee5\u786e\u5b9a\u5143\u7d20\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002 \u7531\u4e8e\u4f7f\u7528\u4e86\u591a\u4e2a\u54c8\u5e0c\u51fd\u6570\u548c\u4f4d\u6570\u7ec4\uff0cBloom filter \u5177\u6709\u8f83\u4f4e\u7684\u5185\u5b58\u5360\u7528\u548c\u5feb\u901f\u7684\u67e5\u8be2\u901f\u5ea6\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5b58\u5728\u4e00\u5b9a\u7684\u8bef\u5224\u7387\uff08false positive\uff09\uff0c\u5373\u5728\u5224\u65ad\u5143\u7d20\u5b58\u5728\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u9519\u8bef\u5224\u65ad\u3002\u8fd9\u662f\u56e0\u4e3a\u4e0d\u540c\u5143\u7d20\u7684\u54c8\u5e0c\u51fd\u6570\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u65f6\u53ef\u80fd\u4ea7\u751f\u51b2\u7a81\uff0c\u5bfc\u81f4\u4f4d\u6570\u7ec4\u7684\u67d0\u4e9b\u4f4d\u7f6e\u540c\u65f6\u88ab\u8bbe\u7f6e\u4e3a1\uff0c\u4ece\u800c\u5f71\u54cd\u5224\u65ad\u7ed3\u679c\u3002 Bloom filter \u4e3b\u8981\u5e94\u7528\u4e8e\u90a3\u4e9b\u5bf9\u67e5\u8be2\u901f\u5ea6\u8981\u6c42\u8f83\u9ad8\u3001\u53ef\u4ee5\u5bb9\u5fcd\u4e00\u5b9a\u7684\u8bef\u5224\u7387\u7684\u573a\u666f\uff0c\u4f8b\u5982\u7f51\u7edc\u7f13\u5b58\u3001\u5927\u89c4\u6a21\u6570\u636e\u96c6\u7684\u53bb\u91cd\u3001\u5783\u573e\u90ae\u4ef6\u8fc7\u6ee4\u7b49\u3002\u901a\u8fc7\u9002\u5f53\u8c03\u6574\u4f4d\u6570\u7ec4\u5927\u5c0f\u548c\u54c8\u5e0c\u51fd\u6570\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u63a7\u5236\u8bef\u5224\u7387\u548c\u5185\u5b58\u5360\u7528\u3002 bloom filter \u548c hash function\u6709\u4ec0\u4e48\u4e0d\u540c\uff1f Bloom filter\uff08\u5e03\u9686\u8fc7\u6ee4\u5668\uff09\u548c\u54c8\u5e0c\u51fd\u6570\u5728\u4f7f\u7528\u65b9\u5f0f\u548c\u76ee\u7684\u4e0a\u6709\u4e00\u4e9b\u4e0d\u540c\u4e4b\u5904\uff1a \u76ee\u7684\uff1aBloom filter \u7684\u4e3b\u8981\u76ee\u7684\u662f\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u5feb\u901f\u7684\u5224\u65ad\u65b9\u5f0f\uff0c\u53ef\u4ee5\u544a\u8bc9\u4f60\u5143\u7d20\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u4e8e\u96c6\u5408\u4e2d\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u8f83\u77ed\u7684\u56fa\u5b9a\u957f\u5ea6\u503c\uff0c\u5e38\u7528\u4e8e\u52a0\u5bc6\u3001\u6570\u636e\u552f\u4e00\u6027\u6821\u9a8c\u3001\u6563\u5217\u67e5\u627e\u7b49\u65b9\u9762\u3002 \u6570\u636e\u7ed3\u6784\uff1aBloom filter \u662f\u4e00\u79cd\u6982\u7387\u578b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u7531\u4e00\u4e2a\u4f4d\u6570\u7ec4\uff08bit array\uff09\u548c\u4e00\u7ec4\u54c8\u5e0c\u51fd\u6570\u7ec4\u6210\u3002\u4f4d\u6570\u7ec4\u7528\u4e8e\u8868\u793a\u96c6\u5408\uff0c\u54c8\u5e0c\u51fd\u6570\u7528\u4e8e\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\u7684\u7d22\u5f15\u3002\u54c8\u5e0c\u51fd\u6570\u901a\u5e38\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u5c06\u8f93\u5165\u6620\u5c04\u5230\u56fa\u5b9a\u957f\u5ea6\u7684\u8f93\u51fa\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u672c\u8eab\u5e76\u4e0d\u5305\u542b\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u53ea\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u51fd\u6570\u3002 \u529f\u80fd\uff1aBloom filter \u7528\u4e8e\u5224\u65ad\u5143\u7d20\u662f\u5426\u5c5e\u4e8e\u4e00\u4e2a\u96c6\u5408\uff0c\u5177\u6709\u9ad8\u6548\u7684\u63d2\u5165\u548c\u67e5\u8be2\u64cd\u4f5c\u3002\u5b83\u53ef\u4ee5\u7ed9\u51fa\u201c\u53ef\u80fd\u5b58\u5728\u201d\u6216\u201c\u4e00\u5b9a\u4e0d\u5b58\u5728\u201d\u7684\u7b54\u6848\uff0c\u4f46\u65e0\u6cd5\u786e\u5b9a\u5143\u7d20\u7684\u786e\u5207\u5b58\u5728\u4e0e\u5426\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u5c06\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u548c\u8ba1\u7b97\uff0c\u901a\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u3002 \u51b2\u7a81\u548c\u8bef\u5224\uff1aBloom filter \u53ef\u80fd\u5b58\u5728\u54c8\u5e0c\u51b2\u7a81\uff0c\u5373\u4e0d\u540c\u5143\u7d20\u7ecf\u8fc7\u54c8\u5e0c\u51fd\u6570\u8ba1\u7b97\u540e\u6620\u5c04\u5230\u76f8\u540c\u7684\u4f4d\u6570\u7ec4\u4f4d\u7f6e\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u8bef\u5224\u3002\u800c\u54c8\u5e0c\u51fd\u6570\u5e94\u8be5\u5c3d\u91cf\u907f\u514d\u51b2\u7a81\uff0c\u4ee5\u786e\u4fdd\u5728\u4e0d\u540c\u7684\u8f93\u5165\u4e0a\u4ea7\u751f\u4e0d\u540c\u7684\u8f93\u51fa\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u54c8\u5e0c\u51b2\u7a81\u662f\u96be\u4ee5\u5b8c\u5168\u907f\u514d\u7684\u3002 \u603b\u7684\u6765\u8bf4\uff0cBloom filter \u662f\u57fa\u4e8e\u54c8\u5e0c\u51fd\u6570\u7684\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5229\u7528\u54c8\u5e0c\u51fd\u6570\u5c06\u5143\u7d20\u6620\u5c04\u5230\u4f4d\u6570\u7ec4\uff0c\u5e76\u901a\u8fc7\u591a\u6b21\u54c8\u5e0c\u6620\u5c04\u6765\u63d0\u4f9b\u5feb\u901f\u7684\u5143\u7d20\u5224\u65ad\u3002\u54c8\u5e0c\u51fd\u6570\u5219\u662f\u72ec\u7acb\u7684\u8ba1\u7b97\u51fd\u6570\uff0c\u7528\u4e8e\u5c06\u6570\u636e\u6620\u5c04\u4e3a\u56fa\u5b9a\u957f\u5ea6\u7684\u503c\uff0c\u5e38\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u3001\u6563\u5217\u67e5\u627e\u3001\u6570\u636e\u5b8c\u6574\u6027\u6821\u9a8c\u7b49\u573a\u666f\u3002 \u7528Python\u7ed9\u6587\u4ef6\u751f\u6210bloom...Read more","og_url":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/","og_site_name":"Feel Like Learning","article_published_time":"2023-05-11T18:35:22+00:00","author":"feellikelearning","twitter_card":"summary_large_image","twitter_misc":{"Written by":"feellikelearning","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#article","isPartOf":{"@id":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/"},"author":{"name":"feellikelearning","@id":"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a"},"headline":"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter","datePublished":"2023-05-11T18:35:22+00:00","dateModified":"2023-05-11T18:35:22+00:00","mainEntityOfPage":{"@id":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/"},"wordCount":41,"commentCount":0,"publisher":{"@id":"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a"},"articleSection":["Python","\u7f16\u7a0b"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/","url":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/","name":"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter | Feel Like Learning","isPartOf":{"@id":"https:\/\/feellikelearning.com\/#website"},"datePublished":"2023-05-11T18:35:22+00:00","dateModified":"2023-05-11T18:35:22+00:00","breadcrumb":{"@id":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/feellikelearning.com\/index.php\/2023\/05\/11\/generate-bloom-filter-using-python\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/feellikelearning.com\/"},{"@type":"ListItem","position":2,"name":"\u7528python\u7ed9\u6587\u4ef6\u751f\u6210bloom filter"}]},{"@type":"WebSite","@id":"https:\/\/feellikelearning.com\/#website","url":"https:\/\/feellikelearning.com\/","name":"Feel Like Learning","description":"\u7a0b\u5e8f\uff5c\u751f\u6d3b\uff5c\u5b66\u5230\u5c31\u662f\u8d5a\u5230","publisher":{"@id":"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/feellikelearning.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":["Person","Organization"],"@id":"https:\/\/feellikelearning.com\/#\/schema\/person\/91fb815bebebf166c217b5e3764d437a","name":"feellikelearning","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/feellikelearning.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/72a1e86e9dcb0332e88bd7d54fd36c28?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/72a1e86e9dcb0332e88bd7d54fd36c28?s=96&d=mm&r=g","caption":"feellikelearning"},"logo":{"@id":"https:\/\/feellikelearning.com\/#\/schema\/person\/image\/"},"url":"https:\/\/feellikelearning.com\/index.php\/author\/feellikelearning\/"}]}},"_links":{"self":[{"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/posts\/1874"}],"collection":[{"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/comments?post=1874"}],"version-history":[{"count":2,"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/posts\/1874\/revisions"}],"predecessor-version":[{"id":1876,"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/posts\/1874\/revisions\/1876"}],"wp:attachment":[{"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/media?parent=1874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/categories?post=1874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feellikelearning.com\/index.php\/wp-json\/wp\/v2\/tags?post=1874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}