graph G {
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    rankdir="TB"
    bgcolor="white"
    fontname="Tahoma"

    node [
        fixedsize="false"
        fontname="Tahoma"
        color="white"
        fillcolor="grey"
        fontcolor="black"
        shape="box"
        style="filled"
        penwidth="1.0"
    ]
    edge [
        fontname="Arial"
        color="#00688b"
        fontcolor="black"
        fontsize="12"
        arrowsize="0.5"
        penwidth="1.0"
    ]




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    "hzfengsy@sjtu.edu.cn" -- "bohanhou@andrew.cmu.edu" [label=" 20 ", penwidth="1", color="#00688b4C"];
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    "tqchenml@gmail.com" -- "hzfengsy@sjtu.edu.cn" [label=" 14 ", penwidth="1", color="#00688b4C"];
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    "pratheeshwaran.siddhuraj@multicorewareinc.com" -- "deivanayaki.sankaralingam@multicorewareinc.com" [label=" 12 ", penwidth="1", color="#00688b4C"];
    "yongcale@gmail.com" -- "tqchen@users.noreply.github.com" [label=" 12 ", penwidth="1", color="#00688b4C"];
    "tqchen@users.noreply.github.com" -- "hiramori.masahiro@ct.mitsubishielectric.co.jp" [label=" 11 ", penwidth="1", color="#00688b4C"];
    "pratheeshwaran.siddhuraj@multicorewareinc.com" -- "tqchen@users.noreply.github.com" [label=" 10 ", penwidth="1", color="#00688b4C"];
    "tqchen@users.noreply.github.com" -- "jjhong@ucsd.edu" [label=" 10 ", penwidth="1", color="#00688b4C"];
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    "hzfengsy@sjtu.edu.cn" -- "pratheeshwaran.siddhuraj@multicorewareinc.com" [label=" 8 ", penwidth="1", color="#00688b4C"];
    "ruihangl@cs.cmu.edu" -- "jjhong@ucsd.edu" [label=" 8 ", penwidth="1", color="#00688b4C"];
    "tqchen@users.noreply.github.com" -- "cristian.balint@gmail.com" [label=" 8 ", penwidth="1", color="#00688b4C"];
    "162695502+patrikperssoninceptron@users.noreply.github.com" -- "hzfengsy@sjtu.edu.cn" [label=" 8 ", penwidth="1", color="#00688b4C"];
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    "jinhongyi02@gmail.com" -- "hzfengsy@sjtu.edu.cn" [label=" 7 ", penwidth="1", color="#00688b4C"];
    "jinhongyi02@gmail.com" -- "jjhong@ucsd.edu" [label=" 7 ", penwidth="1", color="#00688b4C"];
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    "wrongtest@gmail.com" -- "tqchen@users.noreply.github.com" [label=" 7 ", penwidth="1", color="#00688b4C"];
    "yongcale@gmail.com" -- "85399628+hugolatendresse@users.noreply.github.com" [label=" 7 ", penwidth="1", color="#00688b4C"];
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    "hiramori.masahiro@ct.mitsubishielectric.co.jp" -- "yongcale@gmail.com" [label=" 6 ", penwidth="1", color="#00688b4C"];
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    "hzfengsy@sjtu.edu.cn" -- "yongcale@gmail.com" [label=" 6 ", penwidth="1", color="#00688b4C"];
    "tqchen@users.noreply.github.com" -- "mengshyu@gmail.com" [label=" 6 ", penwidth="1", color="#00688b4C"];
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    "820958424@qq.com" -- "hiramori.masahiro@ct.mitsubishielectric.co.jp" [label=" 5 ", penwidth="1", color="#00688b4C"];
    "820958424@qq.com" -- "pratheeshwaran.siddhuraj@multicorewareinc.com" [label=" 5 ", penwidth="1", color="#00688b4C"];
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    "hiramori.masahiro@ct.mitsubishielectric.co.jp" -- "pratheeshwaran.siddhuraj@multicorewareinc.com" [label=" 5 ", penwidth="1", color="#00688b4C"];
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    "34334180+leiwang1999@users.noreply.github.com" -- "tqchen@users.noreply.github.com" [label=" 5 ", penwidth="1", color="#00688b4C"];
    "162695502+patrikperssoninceptron@users.noreply.github.com" -- "85399628+hugolatendresse@users.noreply.github.com" [label=" 5 ", penwidth="1", color="#00688b4C"];
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}