➠ XMAS VIIJan 14th to 17th, 2025 1,700 attendees from 40 countries and regions 7 Keynote Speakers72 Sessions, 8 Workshops and 2 Town Halls
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➠ XMAS VIJan 9th to 12th, 2023 1,200 attendees from 35 countries and regions 6 Keynote Speakers30 Sessions, 3 Workshops, 1 Town Hall and 1 Tutorials
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➠ XMAS VJan 11th to 14th, 2021 7,200 attendees online and in person from 40 countries and regions 6 Keynote Speakers
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➠ XMAS IVJan 6th to 9th, 2019 890 attendees from 24 countries and regions 5 Keynote Speakers
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➠ XMAS IIIJan 9th to 11th, 2017 620 participants from more than 140 institutions across 21 countries and regions 6 Keynote Speakers4 General Sessions, 9 Special Sessions and 2 Workshops
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➠ XMAS IIJan 7th to 9th, 2015 500 participants from about 100 institutions across multiple countries and regions 5 Keynote Speakers4 General Sessions, 1 Student Session and 2 Workshops
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➠ XMAS IJan 9th to 11th, 2014 270 participants from 5 countries and regions 34 Invited Speakers |
Important Dates
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Jan 30
2026
Session / Event proposals open
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Mar 31
2026
Session / Event proposals close
（Extended to April 7） -
Apr 30
2026
Session acceptance notifications
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Apr 30
2026
Abstract submissions & registration open
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Jun 30
2026
Abstract submissions close
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Aug 31
2026
Abstract acceptance notifications & scientific program released
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Oct 15
2026
Early bird registration closes
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Jan 12–15
2027
XMAS 2027