{
  "protocol": "One temporal task per observed year. Each task contains all eligible samples observed in that year, including previously introduced and newly introduced families.",
  "tasks": [
    {
      "task_id": 0,
      "year": 2013,
      "new_families": [
        "admogo",
        "adwo",
        "airpush",
        "anydown",
        "apofer",
        "appoffer",
        "appsgeyser",
        "axent",
        "basebridge",
        "boqx",
        "buzztouch",
        "callflakes",
        "cauly",
        "cimsci",
        "cnzz",
        "commplat",
        "dianjin",
        "dianle",
        "dnotua",
        "domob",
        "dowgin",
        "droiddream",
        "droiddreamlight",
        "droidkungfu",
        "ewind",
        "fakeangry",
        "fakeapp",
        "fakeflash",
        "fakeinst",
        "frupi",
        "ganlet",
        "gappusin",
        "geinimi",
        "gexin",
        "ginmaster",
        "golddream",
        "goldentouch",
        "gumen",
        "hipposms",
        "igexin",
        "inmobi",
        "jsmshider",
        "kingroot",
        "koomer",
        "ksapp",
        "kuguo",
        "kyview",
        "kyvu",
        "ldpinch",
        "leadbolt",
        "madad",
        "minimob",
        "mobidash",
        "mobwin",
        "mseg",
        "nandrobox",
        "opfake",
        "pandaad",
        "piom",
        "pjapps",
        "plankton",
        "poohad",
        "pushad",
        "qumi",
        "ramnit",
        "remotecode",
        "revmob",
        "shixot",
        "skymobi",
        "smsagent",
        "smskey",
        "smspay",
        "smsreg",
        "smssend",
        "stopsms",
        "systemmonitor",
        "tekwon",
        "torjok",
        "uapush",
        "umpay",
        "utchi",
        "viser",
        "wiyun",
        "wkload",
        "wooboo",
        "youmi",
        "zdtad"
      ],
      "new_class_ids": [
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        2,
        3,
        5,
        6,
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        25,
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        42,
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        52,
        53,
        54,
        55,
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        69,
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        72,
        73,
        74,
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        76,
        77,
        78,
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        82,
        84,
        85,
        86,
        89,
        90,
        91,
        92,
        93,
        94,
        96,
        97,
        98,
        100,
        101,
        105,
        107,
        109,
        111,
        112,
        113,
        114,
        117,
        121,
        123,
        125,
        128,
        129,
        130,
        133,
        136,
        137,
        138,
        141,
        143
      ],
      "num_new_classes": 87,
      "active_families": [
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        "adwo",
        "airpush",
        "anydown",
        "apofer",
        "appoffer",
        "appsgeyser",
        "axent",
        "basebridge",
        "boqx",
        "buzztouch",
        "callflakes",
        "cauly",
        "cimsci",
        "cnzz",
        "commplat",
        "dianjin",
        "dianle",
        "dnotua",
        "domob",
        "dowgin",
        "droiddream",
        "droiddreamlight",
        "droidkungfu",
        "ewind",
        "fakeangry",
        "fakeapp",
        "fakeflash",
        "fakeinst",
        "frupi",
        "ganlet",
        "gappusin",
        "geinimi",
        "gexin",
        "ginmaster",
        "golddream",
        "goldentouch",
        "gumen",
        "hipposms",
        "igexin",
        "inmobi",
        "jsmshider",
        "kingroot",
        "koomer",
        "ksapp",
        "kuguo",
        "kyview",
        "kyvu",
        "ldpinch",
        "leadbolt",
        "madad",
        "minimob",
        "mobidash",
        "mobwin",
        "mseg",
        "nandrobox",
        "opfake",
        "pandaad",
        "piom",
        "pjapps",
        "plankton",
        "poohad",
        "pushad",
        "qumi",
        "ramnit",
        "remotecode",
        "revmob",
        "shixot",
        "skymobi",
        "smsagent",
        "smskey",
        "smspay",
        "smsreg",
        "smssend",
        "stopsms",
        "systemmonitor",
        "tekwon",
        "torjok",
        "uapush",
        "umpay",
        "utchi",
        "viser",
        "wiyun",
        "wkload",
        "wooboo",
        "youmi",
        "zdtad"
      ],
      "active_class_ids": [
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        2,
        3,
        5,
        6,
        7,
        8,
        12,
        14,
        18,
        19,
        20,
        21,
        22,
        24,
        25,
        30,
        31,
        32,
        33,
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        35,
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        52,
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        123,
        125,
        128,
        129,
        130,
        133,
        136,
        137,
        138,
        141,
        143
      ],
      "num_active_classes": 87,
      "total_samples": 42364,
      "train_samples": 33891,
      "test_samples": 8473
    },
    {
      "task_id": 1,
      "year": 2014,
      "new_families": [
        "adflex",
        "apptrack",
        "autoins",
        "boogr",
        "clevernet",
        "drosel",
        "feiwo",
        "hiddad",
        "mecor",
        "shedun",
        "smforw",
        "smsbot",
        "smsspy",
        "triada",
        "zbot"
      ],
      "new_class_ids": [
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        9,
        10,
        17,
        23,
        38,
        44,
        60,
        80,
        104,
        108,
        110,
        115,
        127,
        142
      ],
      "num_new_classes": 15,
      "active_families": [
        "adflex",
        "admogo",
        "adwo",
        "airpush",
        "apofer",
        "appoffer",
        "appsgeyser",
        "apptrack",
        "autoins",
        "axent",
        "basebridge",
        "boogr",
        "boqx",
        "buzztouch",
        "callflakes",
        "cauly",
        "cimsci",
        "clevernet",
        "cnzz",
        "commplat",
        "dianjin",
        "dianle",
        "dnotua",
        "domob",
        "dowgin",
        "droiddream",
        "droiddreamlight",
        "droidkungfu",
        "drosel",
        "ewind",
        "fakeangry",
        "fakeapp",
        "fakeflash",
        "fakeinst",
        "feiwo",
        "frupi",
        "ganlet",
        "gappusin",
        "gexin",
        "ginmaster",
        "golddream",
        "goldentouch",
        "gumen",
        "hiddad",
        "hipposms",
        "igexin",
        "inmobi",
        "jsmshider",
        "kingroot",
        "koomer",
        "ksapp",
        "kuguo",
        "kyview",
        "kyvu",
        "ldpinch",
        "leadbolt",
        "madad",
        "mecor",
        "minimob",
        "mobidash",
        "mobwin",
        "mseg",
        "nandrobox",
        "opfake",
        "pandaad",
        "pjapps",
        "plankton",
        "poohad",
        "pushad",
        "qumi",
        "ramnit",
        "remotecode",
        "revmob",
        "shedun",
        "shixot",
        "skymobi",
        "smforw",
        "smsagent",
        "smsbot",
        "smskey",
        "smspay",
        "smsreg",
        "smssend",
        "smsspy",
        "stopsms",
        "systemmonitor",
        "tekwon",
        "torjok",
        "triada",
        "uapush",
        "umpay",
        "utchi",
        "viser",
        "wiyun",
        "wkload",
        "wooboo",
        "youmi",
        "zbot",
        "zdtad"
      ],
      "active_class_ids": [
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        1,
        2,
        3,
        6,
        7,
        8,
        9,
        10,
        12,
        14,
        17,
        18,
        19,
        20,
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        143
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      "num_active_classes": 99,
      "total_samples": 42318,
      "train_samples": 33851,
      "test_samples": 8467
    },
    {
      "task_id": 2,
      "year": 2016,
      "new_families": [
        "autoinst",
        "baiduprotect",
        "cootek",
        "dasu",
        "dataeye",
        "fictus",
        "frmy",
        "hiddapp",
        "hiddenapp",
        "hypay",
        "mobisec",
        "ocikq",
        "presenoker",
        "recmads",
        "rootnik",
        "scamapp",
        "styricka",
        "swizzor",
        "syringe",
        "tapcore",
        "wapron",
        "xinhua",
        "ztorg"
      ],
      "new_class_ids": [
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        13,
        26,
        27,
        29,
        45,
        47,
        61,
        62,
        65,
        83,
        88,
        95,
        99,
        102,
        103,
        118,
        119,
        120,
        122,
        135,
        140,
        144
      ],
      "num_new_classes": 23,
      "active_families": [
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        "admogo",
        "adwo",
        "airpush",
        "anydown",
        "apofer",
        "appoffer",
        "appsgeyser",
        "apptrack",
        "autoins",
        "autoinst",
        "axent",
        "baiduprotect",
        "basebridge",
        "boogr",
        "boqx",
        "buzztouch",
        "callflakes",
        "cauly",
        "cimsci",
        "clevernet",
        "cnzz",
        "commplat",
        "cootek",
        "dasu",
        "dataeye",
        "dianjin",
        "dianle",
        "dnotua",
        "domob",
        "dowgin",
        "droiddream",
        "droiddreamlight",
        "droidkungfu",
        "drosel",
        "ewind",
        "fakeangry",
        "fakeapp",
        "fakeflash",
        "fakeinst",
        "feiwo",
        "fictus",
        "frmy",
        "frupi",
        "ganlet",
        "gappusin",
        "gexin",
        "ginmaster",
        "golddream",
        "goldentouch",
        "gumen",
        "hiddad",
        "hiddapp",
        "hiddenapp",
        "hipposms",
        "hypay",
        "igexin",
        "inmobi",
        "jsmshider",
        "kingroot",
        "koomer",
        "ksapp",
        "kuguo",
        "kyview",
        "kyvu",
        "ldpinch",
        "leadbolt",
        "madad",
        "mecor",
        "minimob",
        "mobidash",
        "mobisec",
        "mobwin",
        "mseg",
        "nandrobox",
        "ocikq",
        "opfake",
        "pandaad",
        "plankton",
        "poohad",
        "presenoker",
        "pushad",
        "qumi",
        "ramnit",
        "recmads",
        "remotecode",
        "revmob",
        "rootnik",
        "scamapp",
        "shedun",
        "shixot",
        "skymobi",
        "smforw",
        "smsagent",
        "smskey",
        "smspay",
        "smsreg",
        "smssend",
        "smsspy",
        "stopsms",
        "styricka",
        "swizzor",
        "syringe",
        "systemmonitor",
        "tapcore",
        "tekwon",
        "torjok",
        "triada",
        "uapush",
        "umpay",
        "utchi",
        "viser",
        "wapron",
        "wiyun",
        "wkload",
        "wooboo",
        "xinhua",
        "youmi",
        "zbot",
        "zdtad",
        "ztorg"
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      "active_class_ids": [
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        2,
        3,
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        140,
        141,
        142,
        143,
        144
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      "num_active_classes": 121,
      "total_samples": 37842,
      "train_samples": 30271,
      "test_samples": 7571
    },
    {
      "task_id": 3,
      "year": 2017,
      "new_families": [
        "blacklister",
        "frla",
        "marsdaemon",
        "notifyer",
        "toofan",
        "virtualapp"
      ],
      "new_class_ids": [
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        46,
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        87,
        124,
        132
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      "num_new_classes": 6,
      "active_families": [
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        "adwo",
        "airpush",
        "anydown",
        "appsgeyser",
        "apptrack",
        "autoins",
        "baiduprotect",
        "blacklister",
        "boogr",
        "buzztouch",
        "cauly",
        "clevernet",
        "cootek",
        "dataeye",
        "dianjin",
        "dnotua",
        "domob",
        "dowgin",
        "drosel",
        "ewind",
        "fakeapp",
        "fakeflash",
        "fakeinst",
        "fictus",
        "frla",
        "frmy",
        "gappusin",
        "ginmaster",
        "hiddad",
        "hiddenapp",
        "igexin",
        "inmobi",
        "kuguo",
        "kyview",
        "kyvu",
        "leadbolt",
        "marsdaemon",
        "mecor",
        "minimob",
        "mobidash",
        "mobwin",
        "notifyer",
        "ocikq",
        "pandaad",
        "piom",
        "pjapps",
        "plankton",
        "presenoker",
        "ramnit",
        "recmads",
        "remotecode",
        "revmob",
        "rootnik",
        "scamapp",
        "shedun",
        "skymobi",
        "smsagent",
        "smskey",
        "smspay",
        "smsreg",
        "smssend",
        "styricka",
        "swizzor",
        "syringe",
        "tapcore",
        "toofan",
        "triada",
        "uapush",
        "umpay",
        "virtualapp",
        "viser",
        "wapron",
        "wiyun",
        "youmi",
        "ztorg"
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      "active_class_ids": [
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      "num_active_classes": 77,
      "total_samples": 10669,
      "train_samples": 8527,
      "test_samples": 2142
    },
    {
      "task_id": 4,
      "year": 2018,
      "new_families": [
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        "beitaad",
        "datacollector",
        "hamad",
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        "traca",
        "utilcode"
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        131
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        "anydown",
        "appoffer",
        "appsgeyser",
        "apptrack",
        "autoins",
        "autoinst",
        "baiduprotect",
        "basebridge",
        "beitaad",
        "blacklister",
        "boogr",
        "buzztouch",
        "cauly",
        "clevernet",
        "cootek",
        "datacollector",
        "dataeye",
        "dianjin",
        "dnotua",
        "domob",
        "dowgin",
        "droiddream",
        "droiddreamlight",
        "droidkungfu",
        "drosel",
        "ewind",
        "fakeangry",
        "fakeapp",
        "fakeflash",
        "fakeinst",
        "fictus",
        "frla",
        "frmy",
        "frupi",
        "gappusin",
        "geinimi",
        "gexin",
        "ginmaster",
        "golddream",
        "gumen",
        "hamad",
        "hiddad",
        "hiddapp",
        "hiddenapp",
        "hipposms",
        "hypay",
        "igexin",
        "inmobi",
        "jsmshider",
        "koomer",
        "kuguo",
        "kyview",
        "kyvu",
        "leadbolt",
        "marsdaemon",
        "mecor",
        "minimob",
        "mobidash",
        "mobwin",
        "nandrobox",
        "notifyer",
        "opfake",
        "piom",
        "pjapps",
        "plankton",
        "presenoker",
        "ramnit",
        "recmads",
        "remotecode",
        "revmob",
        "rootnik",
        "scamapp",
        "shedun",
        "simbad",
        "skymobi",
        "smforw",
        "smsagent",
        "smsbot",
        "smskey",
        "smspay",
        "smsreg",
        "smssend",
        "smsspy",
        "stopsms",
        "styricka",
        "swizzor",
        "syringe",
        "systemmonitor",
        "tapcore",
        "toofan",
        "traca",
        "triada",
        "umpay",
        "utilcode",
        "virtualapp",
        "viser",
        "wapron",
        "wiyun",
        "wooboo",
        "youmi"
      ],
      "active_class_ids": [
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