{
  "summary": {
    "total_chairs": 83,
    "total_chairs_systems": 54,
    "total_chairs_security": 31,
    "repeat_chairs": 24,
    "repeat_chairs_pct": 28.9,
    "repeat_chairs_systems": 13,
    "repeat_chairs_security": 12,
    "cross_conference_chairs": 14,
    "pipeline_promoted": 31,
    "pipeline_promoted_pct": 37.3,
    "pipeline_avg_years": 2.7,
    "avg_chairs_per_edition": 2.1,
    "avg_chairs_per_edition_systems": 2.6,
    "avg_chairs_per_edition_security": 1.7,
    "total_countries": 16,
    "total_continents": 4,
    "year_trends": [
      {
        "year": 2017,
        "new_chairs": 1,
        "active_chairs": 1
      },
      {
        "year": 2018,
        "new_chairs": 0,
        "active_chairs": 1
      },
      {
        "year": 2019,
        "new_chairs": 6,
        "active_chairs": 6
      },
      {
        "year": 2020,
        "new_chairs": 5,
        "active_chairs": 6
      },
      {
        "year": 2021,
        "new_chairs": 14,
        "active_chairs": 17
      },
      {
        "year": 2022,
        "new_chairs": 7,
        "active_chairs": 15
      },
      {
        "year": 2023,
        "new_chairs": 14,
        "active_chairs": 19
      },
      {
        "year": 2024,
        "new_chairs": 11,
        "active_chairs": 17
      },
      {
        "year": 2025,
        "new_chairs": 11,
        "active_chairs": 15
      },
      {
        "year": 2026,
        "new_chairs": 12,
        "active_chairs": 18
      }
    ]
  },
  "chair_teams": [
    {
      "conference": "ACSAC",
      "year": 2017,
      "chair_count": 1,
      "chairs": [
        "Manuel Egele"
      ]
    },
    {
      "conference": "ACSAC",
      "year": 2018,
      "chair_count": 1,
      "chairs": [
        "Manuel Egele"
      ]
    },
    {
      "conference": "ACSAC",
      "year": 2019,
      "chair_count": 1,
      "chairs": [
        "Roberto Perdisci"
      ]
    },
    {
      "conference": "ACSAC",
      "year": 2020,
      "chair_count": 1,
      "chairs": [
        "Roberto Perdisci"
      ]
    },
    {
      "conference": "ACSAC",
      "year": 2021,
      "chair_count": 2,
      "chairs": [
        "Gianluca Stringhini",
        "Martina Lindorfer"
      ]
    },
    {
      "conference": "ACSAC",
      "year": 2022,
      "chair_count": 2,
      "chairs": [
        "Gianluca Stringhini",
        "Martina Lindorfer"
      ]
    },
    {
      "conference": "ACSAC",
      "year": 2023,
      "chair_count": 2,
      "chairs": [
        "Adwait Nadkarni",
        "Xiaojing Liao"
      ]
    },
    {
      "conference": "ATC",
      "year": 2022,
      "chair_count": 3,
      "chairs": [
        "Anuj Kalia",
        "Chengyu Zhang",
        "Neeraja J. Yadwadkar"
      ]
    },
    {
      "conference": "ATC",
      "year": 2023,
      "chair_count": 3,
      "chairs": [
        "Cesar A. Stuardo",
        "Jianyu Jiang",
        "Nathan Rutherford"
      ]
    },
    {
      "conference": "ATC",
      "year": 2024,
      "chair_count": 3,
      "chairs": [
        "Cesar A. Stuardo",
        "Ji Qi",
        "Jianyu Jiang"
      ]
    },
    {
      "conference": "ATC",
      "year": 2025,
      "chair_count": 2,
      "chairs": [
        "Alain Tchana",
        "Vijay Chidambaram"
      ]
    },
    {
      "conference": "CAIS",
      "year": 2026,
      "chair_count": 1,
      "chairs": [
        "Bogdan Alexandru Stoica"
      ]
    },
    {
      "conference": "CHES",
      "year": 2021,
      "chair_count": 1,
      "chairs": [
        "Douglas Stebila"
      ]
    },
    {
      "conference": "CHES",
      "year": 2022,
      "chair_count": 1,
      "chairs": [
        "Martin Albrecht"
      ]
    },
    {
      "conference": "CHES",
      "year": 2023,
      "chair_count": 1,
      "chairs": [
        "Peter Schwabe"
      ]
    },
    {
      "conference": "CHES",
      "year": 2024,
      "chair_count": 1,
      "chairs": [
        "Markku-Juhani O. Saarinen"
      ]
    },
    {
      "conference": "CHES",
      "year": 2025,
      "chair_count": 1,
      "chairs": [
        "Lennert Wouters"
      ]
    },
    {
      "conference": "EUROSYS",
      "year": 2021,
      "chair_count": 3,
      "chairs": [
        "Cristiano Giuffrida",
        "Kornilios Kourtis",
        "Martin Kleppmann"
      ]
    },
    {
      "conference": "EUROSYS",
      "year": 2022,
      "chair_count": 4,
      "chairs": [
        "Anjo Vahldiek-Oberwagner",
        "Natacha Crooks",
        "Salvatore Signorello",
        "Solal Pirelli"
      ]
    },
    {
      "conference": "EUROSYS",
      "year": 2023,
      "chair_count": 3,
      "chairs": [
        "Daniele Cono D'Elia",
        "Mathias Payer",
        "Vincenzo Gulisano"
      ]
    },
    {
      "conference": "EUROSYS",
      "year": 2024,
      "chair_count": 2,
      "chairs": [
        "Miguel Matos",
        "Valerio Schiavoni"
      ]
    },
    {
      "conference": "EUROSYS",
      "year": 2025,
      "chair_count": 3,
      "chairs": [
        "Christian Pinto",
        "Georgios Portokalidis",
        "Thaleia Dimitra Doudali"
      ]
    },
    {
      "conference": "EUROSYS",
      "year": 2026,
      "chair_count": 2,
      "chairs": [
        "Bogdan Alexandru Stoica",
        "Pierre Olivier"
      ]
    },
    {
      "conference": "FAST",
      "year": 2024,
      "chair_count": 2,
      "chairs": [
        "Haryadi S. Gunawi",
        "Huaicheng Li"
      ]
    },
    {
      "conference": "FAST",
      "year": 2025,
      "chair_count": 2,
      "chairs": [
        "Huaicheng Li",
        "Juncheng Yang"
      ]
    },
    {
      "conference": "FAST",
      "year": 2026,
      "chair_count": 2,
      "chairs": [
        "Erci Xu",
        "Juncheng Yang"
      ]
    },
    {
      "conference": "OSDI",
      "year": 2020,
      "chair_count": 3,
      "chairs": [
        "Anjo Vahldiek-Oberwagner",
        "Eric Eide",
        "Ryan Stutsman"
      ]
    },
    {
      "conference": "OSDI",
      "year": 2021,
      "chair_count": 3,
      "chairs": [
        "Guyue",
        "Lalith Suresh",
        "Manuel Rigger"
      ]
    },
    {
      "conference": "OSDI",
      "year": 2022,
      "chair_count": 3,
      "chairs": [
        "Anuj Kalia",
        "Chengyu Zhang",
        "Neeraja J. Yadwadkar"
      ]
    },
    {
      "conference": "OSDI",
      "year": 2023,
      "chair_count": 3,
      "chairs": [
        "Cesar A. Stuardo",
        "Jianyu Jiang",
        "Nathan Rutherford"
      ]
    },
    {
      "conference": "OSDI",
      "year": 2024,
      "chair_count": 3,
      "chairs": [
        "Cesar A. Stuardo",
        "Ji Qi",
        "Jianyu Jiang"
      ]
    },
    {
      "conference": "OSDI",
      "year": 2026,
      "chair_count": 2,
      "chairs": [
        "Anand Iyer",
        "Sara McAllister"
      ]
    },
    {
      "conference": "SC",
      "year": 2021,
      "chair_count": 2,
      "chairs": [
        "Anjo Vahldiek-Oberwagner",
        "Tanu Malik"
      ]
    },
    {
      "conference": "SOSP",
      "year": 2019,
      "chair_count": 3,
      "chairs": [
        "Baris Kasikci",
        "Supreeth Shastri",
        "Vijay Chidambaram"
      ]
    },
    {
      "conference": "SOSP",
      "year": 2021,
      "chair_count": 3,
      "chairs": [
        "Dan Ports",
        "Ivo Jimenez",
        "Robert Ricci"
      ]
    },
    {
      "conference": "SOSP",
      "year": 2023,
      "chair_count": 3,
      "chairs": [
        "Dong Du",
        "Jiayi Meng",
        "Matthew Burke"
      ]
    },
    {
      "conference": "SOSP",
      "year": 2024,
      "chair_count": 2,
      "chairs": [
        "Alexey Tumanov",
        "Henrique Fingler"
      ]
    },
    {
      "conference": "SOSP",
      "year": 2025,
      "chair_count": 3,
      "chairs": [
        "Baptiste Lepers",
        "Sanidhya Kashyap",
        "Sudarsun Kannan"
      ]
    },
    {
      "conference": "SOSP",
      "year": 2026,
      "chair_count": 2,
      "chairs": [
        "Alex Voulimeneas",
        "Solal Pirelli"
      ]
    },
    {
      "conference": "SP",
      "year": 2026,
      "chair_count": 2,
      "chairs": [
        "Jelena Mirkovic",
        "Manuel Egele"
      ]
    },
    {
      "conference": "SYSTEX",
      "year": 2024,
      "chair_count": 1,
      "chairs": [
        "Jo Van Bulck"
      ]
    },
    {
      "conference": "SYSTEX",
      "year": 2025,
      "chair_count": 1,
      "chairs": [
        "Jo Van Bulck"
      ]
    },
    {
      "conference": "SYSTEX",
      "year": 2026,
      "chair_count": 1,
      "chairs": [
        "Marton Bognar"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2020,
      "chair_count": 2,
      "chairs": [
        "Brendan Dolan-Gavitt",
        "Thorsten Holz"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2021,
      "chair_count": 2,
      "chairs": [
        "Clémentine Maurice",
        "Thorsten Holz"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2022,
      "chair_count": 2,
      "chairs": [
        "Clémentine Maurice",
        "Cristiano Giuffrida"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2023,
      "chair_count": 3,
      "chairs": [
        "Alexios Voulimeneas",
        "Anjo Vahldiek-Oberwagner",
        "Cristiano Giuffrida"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2024,
      "chair_count": 3,
      "chairs": [
        "Anjo Vahldiek-Oberwagner",
        "Phani Vadrevu",
        "Victor Le Pochat"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2025,
      "chair_count": 3,
      "chairs": [
        "Aurore Fass",
        "Phani Vadrevu",
        "Tiago Heinrich"
      ]
    },
    {
      "conference": "USENIXSEC",
      "year": 2026,
      "chair_count": 4,
      "chairs": [
        "Aurore Fass",
        "Christian Wressnegger",
        "Deepak Kumar",
        "Tiago Heinrich"
      ]
    },
    {
      "conference": "VEHICLESEC",
      "year": 2026,
      "chair_count": 2,
      "chairs": [
        "Dario Stabili",
        "Taegyu Kim"
      ]
    },
    {
      "conference": "WOOT",
      "year": 2019,
      "chair_count": 2,
      "chairs": [
        "Alex Gantman",
        "Clémentine Maurice"
      ]
    },
    {
      "conference": "WOOT",
      "year": 2021,
      "chair_count": 1,
      "chairs": [
        "Erik van der Kouwe"
      ]
    },
    {
      "conference": "WOOT",
      "year": 2023,
      "chair_count": 1,
      "chairs": [
        "Marco Squarcina"
      ]
    }
  ],
  "pipeline": {
    "promoted_count": 31,
    "promoted_pct": 37.3,
    "avg_years_to_chair": 2.7,
    "min_years": 1,
    "max_years": 9,
    "promotions": [
      {
        "name": "Anjo Vahldiek-Oberwagner",
        "first_member_year": 2019,
        "first_chair_year": 2020,
        "gap": 1
      },
      {
        "name": "Jianyu Jiang",
        "first_member_year": 2022,
        "first_chair_year": 2023,
        "gap": 1
      },
      {
        "name": "Nathan Rutherford",
        "first_member_year": 2022,
        "first_chair_year": 2023,
        "gap": 1
      },
      {
        "name": "Chengyu Zhang",
        "first_member_year": 2021,
        "first_chair_year": 2022,
        "gap": 1
      },
      {
        "name": "Salvatore Signorello",
        "first_member_year": 2021,
        "first_chair_year": 2022,
        "gap": 1
      },
      {
        "name": "Adwait Nadkarni",
        "first_member_year": 2022,
        "first_chair_year": 2023,
        "gap": 1
      },
      {
        "name": "Marco Squarcina",
        "first_member_year": 2022,
        "first_chair_year": 2023,
        "gap": 1
      },
      {
        "name": "Peter Schwabe",
        "first_member_year": 2022,
        "first_chair_year": 2023,
        "gap": 1
      },
      {
        "name": "Xiaojing Liao",
        "first_member_year": 2022,
        "first_chair_year": 2023,
        "gap": 1
      },
      {
        "name": "Solal Pirelli",
        "first_member_year": 2020,
        "first_chair_year": 2022,
        "gap": 2
      },
      {
        "name": "Tiago Heinrich",
        "first_member_year": 2023,
        "first_chair_year": 2025,
        "gap": 2
      },
      {
        "name": "Gianluca Stringhini",
        "first_member_year": 2019,
        "first_chair_year": 2021,
        "gap": 2
      },
      {
        "name": "Ji Qi",
        "first_member_year": 2022,
        "first_chair_year": 2024,
        "gap": 2
      },
      {
        "name": "Martina Lindorfer",
        "first_member_year": 2019,
        "first_chair_year": 2021,
        "gap": 2
      },
      {
        "name": "Dong Du",
        "first_member_year": 2021,
        "first_chair_year": 2023,
        "gap": 2
      },
      {
        "name": "Marton Bognar",
        "first_member_year": 2024,
        "first_chair_year": 2026,
        "gap": 2
      },
      {
        "name": "Jiayi Meng",
        "first_member_year": 2021,
        "first_chair_year": 2023,
        "gap": 2
      },
      {
        "name": "Dario Stabili",
        "first_member_year": 2024,
        "first_chair_year": 2026,
        "gap": 2
      },
      {
        "name": "Ivo Jimenez",
        "first_member_year": 2019,
        "first_chair_year": 2021,
        "gap": 2
      },
      {
        "name": "Cesar A. Stuardo",
        "first_member_year": 2020,
        "first_chair_year": 2023,
        "gap": 3
      },
      {
        "name": "Huaicheng Li",
        "first_member_year": 2021,
        "first_chair_year": 2024,
        "gap": 3
      },
      {
        "name": "Alexios Voulimeneas",
        "first_member_year": 2020,
        "first_chair_year": 2023,
        "gap": 3
      },
      {
        "name": "Matthew Burke",
        "first_member_year": 2020,
        "first_chair_year": 2023,
        "gap": 3
      },
      {
        "name": "Lennert Wouters",
        "first_member_year": 2021,
        "first_chair_year": 2025,
        "gap": 4
      },
      {
        "name": "Daniele Cono D'Elia",
        "first_member_year": 2019,
        "first_chair_year": 2023,
        "gap": 4
      },
      {
        "name": "Bogdan Alexandru Stoica",
        "first_member_year": 2021,
        "first_chair_year": 2026,
        "gap": 5
      },
      {
        "name": "Phani Vadrevu",
        "first_member_year": 2019,
        "first_chair_year": 2024,
        "gap": 5
      },
      {
        "name": "Taegyu Kim",
        "first_member_year": 2021,
        "first_chair_year": 2026,
        "gap": 5
      },
      {
        "name": "Valerio Schiavoni",
        "first_member_year": 2019,
        "first_chair_year": 2024,
        "gap": 5
      },
      {
        "name": "Aurore Fass",
        "first_member_year": 2018,
        "first_chair_year": 2025,
        "gap": 7
      },
      {
        "name": "Christian Wressnegger",
        "first_member_year": 2017,
        "first_chair_year": 2026,
        "gap": 9
      }
    ]
  },
  "retention": {
    "repeat_count": 24,
    "distribution": {
      "1": 59,
      "2": 18,
      "3": 3,
      "4": 2,
      "5": 1
    },
    "tenure_spans": [
      {
        "name": "Manuel Egele",
        "span_years": 10,
        "chair_count": 3,
        "first_year": 2017,
        "last_year": 2026
      },
      {
        "name": "Christian Wressnegger",
        "span_years": 10,
        "chair_count": 1,
        "first_year": 2017,
        "last_year": 2026
      },
      {
        "name": "Aurore Fass",
        "span_years": 9,
        "chair_count": 2,
        "first_year": 2018,
        "last_year": 2026
      },
      {
        "name": "Solal Pirelli",
        "span_years": 7,
        "chair_count": 2,
        "first_year": 2020,
        "last_year": 2026
      },
      {
        "name": "Phani Vadrevu",
        "span_years": 7,
        "chair_count": 2,
        "first_year": 2019,
        "last_year": 2025
      },
      {
        "name": "Vijay Chidambaram",
        "span_years": 7,
        "chair_count": 2,
        "first_year": 2019,
        "last_year": 2025
      },
      {
        "name": "Anjo Vahldiek-Oberwagner",
        "span_years": 6,
        "chair_count": 5,
        "first_year": 2019,
        "last_year": 2024
      },
      {
        "name": "Cesar A. Stuardo",
        "span_years": 6,
        "chair_count": 4,
        "first_year": 2020,
        "last_year": 2025
      },
      {
        "name": "Bogdan Alexandru Stoica",
        "span_years": 6,
        "chair_count": 2,
        "first_year": 2021,
        "last_year": 2026
      },
      {
        "name": "Salvatore Signorello",
        "span_years": 6,
        "chair_count": 1,
        "first_year": 2021,
        "last_year": 2026
      },
      {
        "name": "Taegyu Kim",
        "span_years": 6,
        "chair_count": 1,
        "first_year": 2021,
        "last_year": 2026
      },
      {
        "name": "Valerio Schiavoni",
        "span_years": 6,
        "chair_count": 1,
        "first_year": 2019,
        "last_year": 2024
      },
      {
        "name": "Huaicheng Li",
        "span_years": 5,
        "chair_count": 2,
        "first_year": 2021,
        "last_year": 2025
      },
      {
        "name": "Lennert Wouters",
        "span_years": 5,
        "chair_count": 1,
        "first_year": 2021,
        "last_year": 2025
      },
      {
        "name": "Daniele Cono D'Elia",
        "span_years": 5,
        "chair_count": 1,
        "first_year": 2019,
        "last_year": 2023
      },
      {
        "name": "Clémentine Maurice",
        "span_years": 4,
        "chair_count": 3,
        "first_year": 2019,
        "last_year": 2022
      },
      {
        "name": "Nathan Rutherford",
        "span_years": 4,
        "chair_count": 2,
        "first_year": 2022,
        "last_year": 2025
      },
      {
        "name": "Tiago Heinrich",
        "span_years": 4,
        "chair_count": 2,
        "first_year": 2023,
        "last_year": 2026
      },
      {
        "name": "Gianluca Stringhini",
        "span_years": 4,
        "chair_count": 2,
        "first_year": 2019,
        "last_year": 2022
      },
      {
        "name": "Martina Lindorfer",
        "span_years": 4,
        "chair_count": 2,
        "first_year": 2019,
        "last_year": 2022
      },
      {
        "name": "Alexios Voulimeneas",
        "span_years": 4,
        "chair_count": 1,
        "first_year": 2020,
        "last_year": 2023
      },
      {
        "name": "Matthew Burke",
        "span_years": 4,
        "chair_count": 1,
        "first_year": 2020,
        "last_year": 2023
      },
      {
        "name": "Jianyu Jiang",
        "span_years": 3,
        "chair_count": 4,
        "first_year": 2022,
        "last_year": 2024
      },
      {
        "name": "Cristiano Giuffrida",
        "span_years": 3,
        "chair_count": 3,
        "first_year": 2021,
        "last_year": 2023
      },
      {
        "name": "Ji Qi",
        "span_years": 3,
        "chair_count": 2,
        "first_year": 2022,
        "last_year": 2024
      },
      {
        "name": "Dong Du",
        "span_years": 3,
        "chair_count": 1,
        "first_year": 2021,
        "last_year": 2023
      },
      {
        "name": "Marton Bognar",
        "span_years": 3,
        "chair_count": 1,
        "first_year": 2024,
        "last_year": 2026
      },
      {
        "name": "Jiayi Meng",
        "span_years": 3,
        "chair_count": 1,
        "first_year": 2021,
        "last_year": 2023
      },
      {
        "name": "Dario Stabili",
        "span_years": 3,
        "chair_count": 1,
        "first_year": 2024,
        "last_year": 2026
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}