Re: [Rdkit-discuss] Request for Assistance: Understanding InChI to Mol Conversion Issue in RDKit

2023-12-11 Thread S Joshua Swamidass
Perhaps provide some examples were this failure happens. Sent from Gmail Mobile On Tue, Nov 28, 2023 at 7:35 PM 李大舟 wrote: > Dear RDKit Developers and Maintainers, > > I hope this email finds you well. My name is Dr. Dazhou Li, and I am a > researcher working on the development of a tool for

Re: [Rdkit-discuss] Distinguishing bridgeheads from ring-fusions with SMARTS

2023-08-25 Thread S Joshua Swamidass
Perhaps using ring perception instead would work better? On Fri, Aug 25, 2023 at 10:22 AM Andreas Luttens wrote: > Dear Wim, > > Thanks for your reply! > > Apologies for the delay, finally got time to pick up this project again. > > Your suggestion works great, though I have found some cases

Re: [Rdkit-discuss] question on complexity of cannonization

2023-06-15 Thread S Joshua Swamidass
isulfide bonds and other gotchas), the covalent bonds of proteins of arbitrary size are a planar graph too, even though most (all?) proteins have a 3D structure. On Thu, Jun 15, 2023 at 8:05 PM Francois Berenger wrote: > On 16/06/2023 03:49, S Joshua Swamidass wrote: > > Incidentally, &

Re: [Rdkit-discuss] question on complexity of cannonization

2023-06-15 Thread S Joshua Swamidass
raphs plus a few edges that break the planarity. And what (generally speaking) is the algorithm used by rdkit? Do we know it's complexity? On Thu, Jun 15, 2023 at 1:38 PM S Joshua Swamidass wrote: > Andrew, > > Thanks! According to wikipedia (and my recollections of algorithms > cl

Re: [Rdkit-discuss] question on complexity of cannonization

2023-06-15 Thread S Joshua Swamidass
uot;bounded valence" which is certainly true of molecular graphs. Each atom can only bound some fairly low number of other atoms, i.e. bounded valence. That's probably the reason why we do have a polynomial time algorithm... Thank you! Joshua On Thu, Jun 15, 2023 at 1:21 PM Andrew Dalke w

[Rdkit-discuss] question on complexity of cannonization

2023-06-15 Thread S Joshua Swamidass
cases (e.g. limited branching factor, or that molecules are nearly planar?)? Thanks for considering my question. *S. Joshua Swamidass M.D. Ph.D.* http://swami.wustl.edu/ Associate Professor, Laboratory and Genomic Medicine Associate Professor, Biomedical Engineering Washington University in St

Re: [Rdkit-discuss] use cases for weighted sampling of a compound library

2022-12-11 Thread S Joshua Swamidass
We usually cluster compounds with an appropriate method, and then equally sample molecules from clusters that contain the molecules from the smaller reference library. On Sun, Dec 11, 2022 at 11:25 AM Christopher Mayer-Bacon wrote: > Hello all, > > I’m starting a project that explores the

Re: [Rdkit-discuss] GIL Lock in BulkTanimotoSimilarity

2022-10-25 Thread S Joshua Swamidass
I wonder if there is a way to make use of PyTorch or tensorflow to do this on a GPU. That’s where some big speed ups might be found. Also, consider using these bounds. They do make a big difference in many cases. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2527184/ On Tue, Oct 25, 2022 at