ICTAC

International Colloquium on Theoretical Aspects of Computing

Editions listed13 Covered2014–2026 Rank nowCORE C ProceedingsPaywalled

Editions

Year	Ed.	Held	Where	Paper deadline	Accepted	Rate
2026	23	11–13 Nov 2026	Bariloche 🇦🇷	22 Jun +7 days	—	—
2025	22	24–28 Nov 2025	Marrakech 🇲🇦	9 Jul +18 days	25 / 64	39%
2024	21	25–29 Nov 2024	Bangkok 🇹🇭	30 Jun +9 days	21 / 46	46%
2023	20	4–8 Dec 2023	Lima 🇵🇪	2 Jul +16 days	22 / 39	56%
2022	19	27–29 Sep 2022	Tbilisi 🇬🇪	28 May	25 / 52	48%
2021	18	6–10 Sep 2021	Online	14 May +7 days	—	—
2020	17	30 Nov – 4 Dec 2020	Macao 🇲🇴	17 Jul +21 days	—	—
2019	16	30 Oct – 4 Nov 2019	Hammamet 🇹🇳	26 May +14 days	—	—
2018	15	16–19 Oct 2018	Stellenbosch 🇿🇦	11 May	25 / 59	42%
2017	14	23–27 Oct 2017	Hà Nội 🇻🇳	22 Apr +10 days	17 / 40	42%
2016	13	24–31 Oct 2016	Taipei 🇹🇼	16 May +15 days	23 / 60	38%
2015	12	29–31 Oct 2015	Cali 🇨🇴	19 Jun	—	—
2014	11	17–20 Sep 2014	Bucharest 🇷🇴	6 Apr	—	—

A missing year does not mean the conference did not meet: coverage before 2014 has not been verified.

Acceptance rate over time

0%30%60%

2025 39% 25/64
2024 46% 21/46
2023 56% 22/39
2022 48% 25/52
2018 42% 25/59
2017 42% 17/40
2016 38% 23/60

Scale runs to 60%; the mid-line marks 30%. No figure published for 2014, 2015, 2019, 2020, 2021, 2026.

Submissions

2025 64 summed
2024 46
2023 39
2022 52
2018 59
2017 40
2016 60

Scaled to this conference's own busiest year (64), so the shape is comparable across its editions but not between conferences.

How it has reviewed and published

Practice	14	15	16	17	18	19	20	21	22	23	24	25	26
Proceedings	•	•	•	•	•	•	•	•	•	•	•	•	•

Practice

Proceedings

•

A blank cell means nobody has checked that year, not that the answer is no. Licences are read as recorded on the edition, never inherited from the publisher.

Where it has met

Loads tiles from OpenStreetMap, which will see your IP address.

12 cities. 20142026

12 cities, 12 countries, 4 continents. Met online 1 time.

CORE rank over time

B 2008–2022 C 2023–

Ranked since the first CORE round.

Timing

Closes: between 14 May and 9 Jul, over the last 6 editions.
Decision: 52 days after the deadline (27–70 over 13 editions)
Then: 95 days to the conference (73–137)

No call is open. If it runs again and keeps to its habits, expect the next one to close in the same window — but that is this page reading a pattern, not an announcement.

Deadline habits

Extended: 9 of 9 editions
Typical: 7–21 days
Longest: 21 days
Not known: 4 editions

An edition counts as firm only when it was checked; a deadline with no earlier date recorded is counted as not known, not as firm.

Elsewhere

DBLP: ictac ↗
CORE: portal entry 867 ↗
Calendar: Subscribe to ICTAC
Data: All editions as JSON

Notes carried over

Acceptance: 38% (23/60) in 2016, 43% (17/40) in 2017, 42% (25/59) in 2018, 48% (23+2 / 44+8) in 2022, 56% (22/39) in 2023.

Extensions: 2 weeks (2014, 2015, 2016, 2018), 10 days (2017), 14 days (2019), 21 days (2020), 7 days (2021), 16 days (2023), 9 days (2024), 18 days (2025), 7 days (2026).

Kept verbatim from the old site while it is being turned into structured data.

Spotted something wrong on this page? Tell us, with a source if you have one ↗

Data entirely hand-typed, one call for papers at a time. There is no scraper behind any of this: I read the call for papers and/or the Web sites and type the dates in, in the gaps between other work, and with the hope it is useful to others. Organisers might then move deadlines without telling anyone, which may lead to inconsistencies. So, treat this small page as a well-meaning notebook rather than an authority 🤓