Geodesic
A FAST ALGORITHM FOR CALCULATING S-INVARIANTS
Glasgow mathematical journal, Tome 63 (2021) no. 2, pp. 378-399

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DOI

We use the divide-and-conquer and scanning algorithms for calculating Khovanov cohomology directly on the Lee- or Bar-Natan deformations of the Khovanov complex to give an alternative way to compute Rasmussen s-invariants of knots. By disregarding generators away from homological degree 0, we can considerably improve the efficiency of the algorithm. With a slight modification, we can also apply it to a refinement of Lipshitz–Sarkar. 
SCHÜTZ, DIRK. A FAST ALGORITHM FOR CALCULATING S-INVARIANTS. Glasgow mathematical journal, Tome 63 (2021) no. 2, pp. 378-399. doi: 10.1017/S0017089520000257
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     author = {SCH\"UTZ, DIRK},
     title = {A {FAST} {ALGORITHM} {FOR} {CALCULATING} {S-INVARIANTS}},
     journal = {Glasgow mathematical journal},
     pages = {378--399},
     year = {2021},
     volume = {63},
     number = {2},
     doi = {10.1017/S0017089520000257},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089520000257/}
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