00:06:15 -!- attila_lendvai [~attila_le@unaffiliated/attila-lendvai/x-3126965] has quit [Quit: Leaving.] 00:11:45 -!- Krystof [~csr21@csrhodes.plus.com] has quit [Ping timeout: 255 seconds] 00:25:30 Krystof [~csr21@csrhodes.plus.com] has joined #sbcl 00:25:30 -!- ChanServ has set mode +o Krystof 01:09:10 Quadrescence [~Quad@unaffiliated/quadrescence] has joined #sbcl 01:30:30 -!- ASau [~user@95-27-147-30.broadband.corbina.ru] has quit [Ping timeout: 255 seconds] 05:11:08 Kryztof [~user@csrhodes.plus.com] has joined #sbcl 05:11:08 -!- ChanServ has set mode +o Kryztof 05:16:17 -!- Xof [~user@csrhodes.plus.com] has quit [Quit: ERC Version 5.3 (IRC client for Emacs)] 05:17:23 -!- antgreen [~user@bas3-toronto06-2925097352.dsl.bell.ca] has quit [Remote host closed the connection] 06:27:11 -!- Krystof [~csr21@csrhodes.plus.com] has quit [Ping timeout: 260 seconds] 06:48:13 ASau [~user@95-24-229-205.broadband.corbina.ru] has joined #sbcl 07:06:10 Krystof [~csr21@csrhodes.plus.com] has joined #sbcl 07:06:10 -!- ChanServ has set mode +o Krystof 09:18:43 tcr [~tcr@77-58-246-74.dclient.hispeed.ch] has joined #sbcl 09:54:01 attila_lendvai [~attila_le@unaffiliated/attila-lendvai/x-3126965] has joined #sbcl 10:57:37 homie`` [~levgue@xdsl-78-35-152-101.netcologne.de] has joined #sbcl 11:00:00 -!- homie` [~levgue@xdsl-78-35-167-20.netcologne.de] has quit [Ping timeout: 260 seconds] 11:10:33 -!- tcr [~tcr@77-58-246-74.dclient.hispeed.ch] has quit [Quit: Leaving.] 11:30:45 christoph_debian [~user@oteiza.siccegge.de] has joined #sbcl 12:03:56 -!- attila_lendvai [~attila_le@unaffiliated/attila-lendvai/x-3126965] has quit [Quit: Leaving.] 12:06:11 hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has joined #sbcl 12:40:09 -!- homie`` [~levgue@xdsl-78-35-152-101.netcologne.de] has quit [Quit: ERC Version 5.3 (IRC client for Emacs)] 12:41:55 homie [~levgue@xdsl-78-35-152-101.netcologne.de] has joined #sbcl 13:10:37 -!- hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has quit [Quit: Leaving...] 13:14:20 hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has joined #sbcl 13:30:33 -!- hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has quit [Quit: Leaving...] 13:31:55 hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has joined #sbcl 14:23:00 prxq [~mommer@mnhm-590c2023.pool.mediaWays.net] has joined #sbcl 15:05:50 -!- hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has quit [Quit: Leaving...] 15:52:59 -!- prxq [~mommer@mnhm-590c2023.pool.mediaWays.net] has quit [Quit: Leaving] 16:33:02 hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has joined #sbcl 16:41:26 -!- hargettp [~hargettp@pool-71-174-128-121.bstnma.east.verizon.net] has quit [Quit: Leaving...] 17:03:55 tcr [~tcr@77-58-246-74.dclient.hispeed.ch] has joined #sbcl 19:34:35 -!- tcr [~tcr@77-58-246-74.dclient.hispeed.ch] has quit [Quit: Leaving.] 21:03:44 What's on the table today, sbcl folk? 21:05:29 figuring out why my accelerated projected gradient descent doesn't work (: 21:09:21 pkhuong: for what? 21:11:28 it's very much preliminary, but... I work with lagrangian relaxations a lot, and use bundle methods to update the multipliers (lagrangian duals are generally convex non-differentiable here) 21:12:16 dork 21:12:50 and I have an interesting reformulation of the sort of subproblems bundle methods depend on. 21:13:03 :) 21:16:00 that reformulation yield a minimisation problem over the simplex of a differentiable function (with a lipshitz continuous gradient at that)... projected gradient descent works, but an accelerated gradient method should work even better. 21:16:00 pkhuong: Are you writing the code in Lisp? 21:16:05 yup 21:16:48 Faster to prototype, and to inspect state, build test instances, etc. 21:35:32 pkhuong: If I ever start a software company/foundation/organization specializing in computer algebra, I'm gonna hire you. 21:38:31 I'm much more on the numerical side of things, but I'd think about it ;) 21:39:16 pkhuong: well the numerical side of things is important 21:51:04 pkhuong: What's your favorite reference/math book 21:58:30 math? Good question. Golub & Van Loan, probably. 21:58:58 or Chvatal's Linear Programming. 21:59:22 you? 22:39:07 pkhuong: Not sure actually. 22:39:21 pkhuong: PM incoming 23:15:33 homie` [~levgue@xdsl-78-35-170-163.netcologne.de] has joined #sbcl 23:18:25 -!- homie [~levgue@xdsl-78-35-152-101.netcologne.de] has quit [Ping timeout: 250 seconds] 23:24:31 mm.. another instance of better code being emitted from the REPL than via compile-file 23:57:33 tcr [~tcr@77-58-246-74.dclient.hispeed.ch] has joined #sbcl