Arindam Khan

@arindamkhan.bsky.social

Algorithmist | CS Prof. @ IISc Bangalore | Past: Georgia Tech, IIT Kharagpur Algo-rindam Youtube: https://www.youtube.com/@ArindamKhan LinkedIn: https://www.linkedin.com/in/arindam-khan-445ab615/

I am delighted to share that our paper has been accepted to ๐—™๐—ข๐—–๐—ฆ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ! My wonderful coauthors: Kailash Gopal (Then a BTech student at IIT Madras and just joined predoc at Google DeepMind), Samyak Jha, RA at IISc (soon joining UW-Madison for PhD), and KVN Sreeniva (PhD student at IISc). #FOCS

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๐—•๐—ถ๐—ฝ๐—ฎ๐—ฟ๐˜๐—ถ๐˜๐—ฒ ๐—บ๐—ฎ๐˜๐—ฐ๐—ต๐—ถ๐—ป๐—ด ๐—ถ๐˜€ ๐—ถ๐—ป ๐—ก๐—– -- ๐—ฒ๐˜…๐—ฐ๐—ถ๐˜๐—ถ๐—ป๐—ด ๐—•๐—ฎ๐—ป๐—ด๐—ฎ๐—น๐—ผ๐—ฟ๐—ฒ ๐—ง๐—ต๐—ฒ๐—ผ๐—ฟ๐˜† ๐—ฆ๐—ฒ๐—บ๐—ถ๐—ป๐—ฎ๐—ฟ ๐˜๐—ฎ๐—น๐—ธ ๐—ฏ๐˜† ๐—ฅ๐—ผ๐—ต๐—ถ๐˜ ๐—š๐˜‚๐—ฟ๐—ท๐—ฎ๐—ฟ ๐˜๐—ต๐—ถ๐˜€ ๐—ง๐˜‚๐—ฒ๐˜€๐—ฑ๐—ฎ๐˜† (๐Ÿฐ๐—ฝ๐—บ ๐—œ๐—ป๐—ฑ๐—ถ๐—ฎ ๐˜๐—ถ๐—บ๐—ฒ)! Tuesday, 23 June 2026 16:00-17:00 India time. Teams Link: teams.microsoft.com/l/meetup-joi...

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teams.microsoft.com

Prof. Subir Kumar Ghosh (1953โ€“2026) passed away last week. A former Prof at TIFR, Bombay, he launched the conference CALDAM and organized over 20 research workshops on algorithms across Indian universities. He is also known for his book on visibility algorithms. Rest in peace, Sir.

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๐—˜๐˜…๐—ฐ๐—ถ๐˜๐—ถ๐—ป๐—ด ๐˜๐—ถ๐—บ๐—ฒ๐˜€. ๐—›๐˜‚๐—บ๐—ฎ๐—ป๐˜€ + ๐—”๐—œ. Erdล‘s Unit Distance Problem: among n points in the plane, how many pairs can be distance 1 apart? After 80 years, OpenAI researchers gave a new lower-bound construction. Within hours, Will Sawin improved it to (n^{1.014}): arxiv.org/pdf/2605.20579 #Math #Geometry

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Today Jose Correa from the University of Chile will deliver an (online) survey talk at Bangalore Theory Seminar on "Prophet inequalities". Last week, Christian Coester (Oxford) gave a tutorial on mirror descent (and applications in online algorithms) Link: www.csa.iisc.ac.in/theorysemina...

Bangalore Theory Seminars

A Research Seminar Series in Theoretical Computer Science brough to you by various research institutions in Bangalore

csa.iisc.ac.in

๐“๐ก๐ž ๐ฆ๐š๐ง ๐ฐ๐ก๐จ ๐ข๐ง๐ฏ๐ž๐ง๐ญ๐ž๐ ๐๐ฎ๐ข๐œ๐ค๐ฌ๐จ๐ซ๐ญ ๐ฉ๐š๐ฌ๐ฌ๐ž๐ ๐š๐ฐ๐š๐ฒ ๐ฅ๐š๐ฌ๐ญ ๐ฐ๐ž๐ž๐ค. Turing Award winner Sir Tony Hoare passed away last Thursday at the age of 92. At age 26, he invented Quicksort -- Taught in UG algorithms and still one of the most elegant and widely used algorithms. #CS #Algorithms #Quicksort

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Most of us can trace our journeys back to a few people who shaped how we think & what we work on. For me, two of them are Prof. Prasad Tetali (Carnegie Mellon University) & Prof. Mark de Berg (TU Eindhoven) -- both visiting us this week. This week also marks the start of Mark's sabbatical at IISc!

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๐—–๐—ฎ๐—น๐—น ๐—ณ๐—ผ๐—ฟ ๐—ฃ๐—ผ๐˜€๐˜๐—ฑ๐—ผ๐—ฐ๐˜๐—ผ๐—ฟ๐—ฎ๐—น ๐—™๐—ฒ๐—น๐—น๐—ผ๐˜„๐˜€ ๐—ถ๐—ป ๐—”๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€ & ๐—ง๐—ต๐—ฒ๐—ผ๐—ฟ๐˜† ๐—œ๐—ป๐—ฑ๐—ถ๐—ฎ๐—ป ๐—œ๐—ป๐˜€๐˜๐—ถ๐˜๐˜‚๐˜๐—ฒ ๐—ผ๐—ณ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ (๐—œ๐—œ๐—ฆ๐—ฐ), ๐—•๐—ฒ๐—ป๐—ด๐—ฎ๐—น๐˜‚๐—ฟ๐˜‚ The Algorithms group at IISc invites applications for multiple ๐—ฃ๐—ผ๐˜€๐˜-๐——๐—ผ๐—ฐ๐˜๐—ผ๐—ฟ๐—ฎ๐—น ๐—™๐—ฒ๐—น๐—น๐—ผ๐˜„๐˜€๐—ต๐—ถ๐—ฝ๐˜€ in Algorithms & Theory. ๐—”๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—Ÿ๐—ถ๐—ป๐—ธ: forms.gle/moz2vx7tiNFC... ๐——๐—ฒ๐—ฎ๐—ฑ๐—น๐—ถ๐—ป๐—ฒ: 28 February #postdocs (1/n)

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New Blog: www.linkedin.com/pulse/how-ha... Some problems donโ€™t yield to quick tricks. They demand patience and the humility to fail repeatedly. If you're working on a hard problem & wondering whether itโ€™s worth it: ๐—ง๐—ต๐—ฒ ๐—ฝ๐—ฎ๐˜†๐—ผ๐—ณ๐—ณ ๐—ถ๐˜€ ๐—ผ๐—ณ๐˜๐—ฒ๐—ป ๐—ฎ ๐—ฑ๐—ฒ๐—ฐ๐—ฎ๐—ฑ๐—ฒ ๐—ฎ๐˜„๐—ฎ๐˜†. ๐—ง๐—ต๐—ฎ๐˜โ€™๐˜€ ๐—ผ๐—ธ๐—ฎ๐˜†. #Research #CS #Theory #Algorithms

How hard problems slowly give way -- Sometimes the payoff takes a decade.

Some problems donโ€™t yield to quick tricks. They demand patience, structural understanding, and the humility to fail repeatedly.

linkedin.com

๐Ÿšจ ๐—ฃ๐—ฎ๐—ฝ๐—ฒ๐—ฟ ๐—ถ๐—ป ๐—ฆ๐—ง๐—ข๐—– ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ | ๐—” ๐—ต๐—ถ๐˜€๐˜๐—ผ๐—ฟ๐—ถ๐—ฐ ๐—ณ๐—ถ๐—ฟ๐˜€๐˜! (1/n) ๐ŸŽ‰ Huge congratulations to my PhD student Debajyoti Kar and collaborator Andreas Wiese ๐ŸŽ‰ Our joint work has been accepted at STOC 2026 on approximation schemes for geometric knapsack with rotations.

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๐ˆ๐‚๐‹๐‘ ๐Ÿ๐ŸŽ๐Ÿ๐Ÿ” ๐š๐œ๐œ๐ž๐ฉ๐ญ๐š๐ง๐œ๐ž: ๐€๐๐ฌ ๐ญ๐ก๐š๐ญ ๐’๐ญ๐ข๐œ๐ค Most ad systems still do something very simple. They space ads uniformly, or impose crude caps, and hope for the best. Humans, unfortunately, are not uniform. This paper asks a basic question: What if ad scheduling actually respected how human attention works?

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๐—™๐—ฆ๐—ง๐—ง๐—–๐—ฆ ๐—ด๐—ผ๐—ฒ๐˜€ ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐—ฎ๐—น! FSTTCS is a nearly 50-year-old flagship venue of IARCS (Indian Association for Research in Com Science). This week, FSTTCS is underway at BITS Pilani, Goa. This edition is the largest ever, with 50 accepted papers, 8 workshops, and 350+ participants from 18+ countries.

๐—œ๐—ฑ๐—ฒ๐—ฎ๐˜€ ๐—ข๐˜ƒ๐—ฒ๐—ฟ ๐—–๐—ผ๐—บ๐—ฝ๐˜‚๐˜๐—ฒ. ๐—ฆ๐—ถ๐—บ๐—ฝ๐—น๐—ถ๐—ฐ๐—ถ๐˜๐˜† ๐—ข๐˜ƒ๐—ฒ๐—ฟ ๐—ค๐˜‚๐—ฎ๐—ป๐˜๐—ถ๐˜๐˜†. Happy Theorists during Panel Discussions on Future of Graph Algorithms at the Department of Computer Science and Automation, Indian Institute of Science (IISc), Bangalore. #IISc #India #Algorithms #Graphs

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A fun-filled week of ๐—ด๐—ฟ๐—ฎ๐—ฝ๐—ต ๐—ฎ๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€ at IISc, a truly ๐—ป๐—ฒ๐˜๐˜„๐—ผ๐—ฟ๐—ธ๐—ฒ๐—ฑ and ๐—ฑ๐˜†๐—ป๐—ฎ๐—บ๐—ถ๐—ฐ event ๐—ฑ๐—ถ๐˜€๐˜๐—ฟ๐—ถ๐—ฏ๐˜‚๐˜๐—ฒ๐—ฑ over five days, ๐˜€๐˜๐—ฟ๐—ฒ๐—ฎ๐—บ๐—ฒ๐—ฑ ๐—ผ๐—ป๐—น๐—ถ๐—ป๐—ฒ and ๐—ฐ๐—ผ๐—ป๐—ป๐—ฒ๐—ฐ๐˜๐—ถ๐—ป๐—ด over 150 in-person participants from multiple countries. By many ๐—ฝ๐—ฎ๐—ฟ๐—ฎ๐—บ๐—ฒ๐˜๐—ฒ๐—ฟ๐˜€, the ๐—ฏ๐—ถ๐—ด๐—ด๐—ฒ๐˜€๐˜ ๐—ฎ๐—น๐—ด๐—ผ๐—ฟ๐—ถ๐˜๐—ต๐—บ๐˜€ ๐—ฒ๐˜ƒ๐—ฒ๐—ป๐˜ ever in India! #IISc #India #Algorithms #Graph

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With some of the brightest minds I admire. At my office during Graph Algorithms Workshop! Debmalya Panigrahi (Duke), Anupam Gupta (NYU), Amit Kumar (IITD), @Sujoy Bhore (IITB), Madhusudhan Reddy Pittu (NYU), and Debajyoti Kar (IISc)! With Erdล‘s and Prasad Tetali in the background ๐Ÿ™‚ #Algorithms

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Excited to be at Dagstuhl this week for the seminar on ๐Ž๐ง๐ฅ๐ข๐ง๐ž ๐€๐ฅ๐ ๐จ๐ซ๐ข๐ญ๐ก๐ฆ๐ฌ ๐๐ž๐ฒ๐จ๐ง๐ ๐‚๐จ๐ฆ๐ฉ๐ž๐ญ๐ข๐ญ๐ข๐ฏ๐ž ๐€๐ง๐š๐ฅ๐ฒ๐ฌ๐ข๐ฌ! Key themes include learning-augmented algorithms, stochastic input models (random-order, IID, prophet), online algorithms with recourse, etc. #Algorithms #Beyond-Competitive-Analysis

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โš”๏ธ Divide and Conquer: Not just for empires, but also for matchmaking! ๐Ÿ“ข New lecture on the Closest Pair Problem โ€” a cornerstone of computational geometry and an elegant example of the divide-and-conquer paradigm. (1/n)

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๐ŸŽ’ Knapsack โ€” We understand what's truly important when we pack our bags! ๐Ÿ“ข Iโ€™ve just rolled out a comprehensive 7-part lecture series on the Knapsack Problem โ€” one of the cornerstone problems in algorithms. ๐Ÿ“บ Watch the full series on my channel: ๐Ÿ‘‰ Algo-rindam lnkd.in/gBxPtkCq

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Had a fun and productive week in Germany, participating in the Dagstuhl seminar on Precision in Geometric Algorithms. Photo: with my "packing" team: Anders Aamand (Rice University), Eunjin Oh (POSTECH), Linda Kleist (U Hamburg), Csaba Toth (CalState), and Mikkel Vind Abrahamsen (U Copenhagen).

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