I WILL be attending, and I also agree that we should be making use of std::expected, so I will defend that point. I think this is in fact a BSI position, but I would need to check with the chair (CCed). If not, we should raise this at the BSI meeting on Monday.

 

Cheers,
G

 

From: SG19 <sg19-bounces_at_[hidden]> On Behalf Of Oliver Rosten via SG19
Sent: Wednesday, July 12, 2023 9:13 AM
To: sg19_at_[hidden]
Cc: Oliver Rosten <oliver.rosten_at_[hidden]>
Subject: Re: [SG19] SG19 July 13 call

 

Hi all,

 

Sorry but I can't make the session tomorrow.

 

However, I am keen to keep advocating for error-handling via a std::expected (with an appropriate unexpected value type which captures the various possibilities). I think this is the most ergonomic and least surprising approach.

 

Even if it is decided not to go down this route, I think the paper would greatly benefit from a proper discussion of the various options. All I can find (sorry if I've missed something) is this bullet point in the R5 revision list:

* stats_error, an exception, is removed, since (C++) math funtions do not throw exceptions

Oliver

 

On Wed, 12 Jul 2023 at 04:39, Michael Wong via SG19 <sg19_at_[hidden] <mailto:sg19_at_[hidden]> > wrote:

Hi all, SG19 Machine Learning meeting will focus on Stats. We still want to drive graphs and stats to completion. Are there any other suggested topics?
Thank you.


Michael Wong is inviting
you to a scheduled Zoom meeting.

Topic: SG19 monthly
Time: 02:00 PM Eastern Time (US and Canada)
    Every month on the Second Thu,


Join from PC, Mac, Linux, iOS or Android:

 <https://iso.zoom.us/j/93084591725?pwd=K3QxZjJlcnljaE13ZWU5cTlLNkx0Zz09> https://iso.zoom.us/j/93084591725?pwd=K3QxZjJlcnljaE13ZWU5cTlLNkx0Zz09
    Password: 035530

Or iPhone one-tap :
    US: +13017158592,,93084591725# or +13126266799,,93084591725#
Or Telephone:
    Dial(for higher quality, dial a number based on your current location):
        US: +1 301 715 8592 or +1 312 626 6799 or +1 346 248 7799 or +1
408 638 0968 or +1 646 876 9923 or +1 669 900 6833 or +1 253 215 8782
 or 877 853 5247 (Toll Free)
    Meeting ID: 930 8459 1725
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Or Skype for Business (Lync):
     <https://iso.zoom.us/skype/93084591725> https://iso.zoom.us/skype/93084591725

Agenda:

1. Opening and introductions

The ISO Code of conduct:
 <https://www.iso.org/files/live/sites/isoorg/files/store/en/PUB100397.pdf> https://www.iso.org/files/live/sites/isoorg/files/store/en/PUB100397.pdf

IEC Code of Conduct:

 <https://www.iec.ch/basecamp/iec-code-conduct-technical-work> https://www.iec.ch/basecamp/iec-code-conduct-technical-work

ISO patent policy.

 <https://isotc.iso.org/livelink/livelink/fetch/2000/2122/3770791/Common_Policy.htm?nodeid=6344764&vernum=-2> https://isotc.iso.org/livelink/livelink/fetch/2000/2122/3770791/Common_Policy.htm?nodeid=6344764&vernum=-2

The WG21 Practices and Procedures and Code of Conduct:
 <https://isocpp.org/std/standing-documents/sd-4-wg21-practices-and-procedures> https://isocpp.org/std/standing-documents/sd-4-wg21-practices-and-procedures

1.1 Roll call of participants

1.2 Adopt agenda

1.3 Approve minutes from previous meeting, and approve publishing
 previously approved minutes to ISOCPP.org

1.4 Action items from previous meetings

2. Main issues (125 min)

2.1 General logistics

Meeting plan, focus on one paper per meeting but does not preclude other
paper updates:

Varna F2F

C++23 and C++26 status


Apr 13: Graph
May 11: Cancelled
June 15: Varna F2F (cancelled)
July 13: Stats
Aug 10: Matrix
Sep 14: Graph
Oct 12: Stats
Nov 9: Kona F2F Cancelled
Dec 14: Matrix


ISO meeting status

future C++ Std meetings

2.2 Paper reviews

2.2.1: ML topics

2.2.1.1 Graph Proposal Phil Ratsloff et al

Latest paper:

Here’s a link to the paper (different than the previous paper reviewed).
There are some additional updates I’m planning on making before the meeting.

 <https://docs.google.com/document/d/1OpH-xxRri7tJTtJJIZTYmSHkkrZJkdBwm9zJ7LqolfQ/edit?usp=sharing> https://docs.google.com/document/d/1OpH-xxRri7tJTtJJIZTYmSHkkrZJkdBwm9zJ7LqolfQ/edit?usp=sharing




P1709R3:
 <https://docs.google.com/document/d/1kLHhbSTX7j0tPeTYECQFSNx3R35Mu3xO5_dyYdRy4dM/edit?usp=sharing> https://docs.google.com/document/d/1kLHhbSTX7j0tPeTYECQFSNx3R35Mu3xO5_dyYdRy4dM/edit?usp=sharing

 <https://docs.google.com/document/d/1QkfDzGyfNQKs86y053M0YHOLP6frzhTJqzg1Ug_vkkE/edit?usp=sharing> https://docs.google.com/document/d/1QkfDzGyfNQKs86y053M0YHOLP6frzhTJqzg1Ug_vkkE/edit?usp=sharing

< <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2119r0.html> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2119r0.html>

<
 <https://docs.google.com/document/d/175wIm8o4BNGti0WLq8U6uZORegKVjmnpfc-_E8PoGS0/edit?ts=5fff27cd#heading=h.9ogkehmdmtel> https://docs.google.com/document/d/175wIm8o4BNGti0WLq8U6uZORegKVjmnpfc-_E8PoGS0/edit?ts=5fff27cd#heading=h.9ogkehmdmtel
*>*

Array copy semantics:
array copy-semantics paper P1997 "Relaxing Restrictions on Arrays",
 <https://wg21.link/p1997> https://wg21.link/p1997

Stats feedback:

P2376R0
< <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2376r0.pdf> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2376r0.pdf>
Comments
on Simple Statistical Functions (p1708r4): Contracts, Exceptions and
Special cases Johan Lundberg

2.2.1.2 Reinforcement Learning Larry Lewis Jorge Silva

Reinforcement Learning proposal:

2.2.1.3 Differential Calculus:

 <https://docs.google.com/document/d/175wIm8o4BNGti0WLq8U6uZORegKVjmnpfc-_E8PoGS0/edit?ts=5fff27cd#heading=h.9ogkehmdmtel> https://docs.google.com/document/d/175wIm8o4BNGti0WLq8U6uZORegKVjmnpfc-_E8PoGS0/edit?ts=5fff27cd#heading=h.9ogkehmdmtel

2.2.1.4 <http://2.2.1.4> : Stats paper

P2681R0
< <https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2681r0.pdf> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2681r0.pdf> More
Stats Functions Richard Dosselmann, Michael Wong
Current github

 <https://github.com/cplusplus/papers/issues/475> https://github.com/cplusplus/papers/issues/475

 <https://github.com/cplusplus/papers/issues/979> https://github.com/cplusplus/papers/issues/979

Stats review Richard Dosselman et al

 <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p1708r4.pdf> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p1708r4.pdf

Feedback from Johan Lundberg and Oleksandr Korval

 <https://isocpp.org/files/papers/D2376R0.pdf> https://isocpp.org/files/papers/D2376R0.pdf

P1708R3: Math proposal for Machine Learning: 3rd review

PXXXX: combinatorics: 1st Review

*> std.org/jtc1/sc22/wg21/docs/papers/2020/p1708r2 <http://std.org/jtc1/sc22/wg21/docs/papers/2020/p1708r2>
< <http://std.org/jtc1/sc22/wg21/docs/papers/2020/p1708r2> http://std.org/jtc1/sc22/wg21/docs/papers/2020/p1708r2>*
*> above is the stats paper that was reviewed in Prague*
*> <http://wiki.edg.com/bin/view/Wg21prague/P1708R2SG19> http://wiki.edg.com/bin/view/Wg21prague/P1708R2SG19
< <http://wiki.edg.com/bin/view/Wg21prague/P1708R2SG19> http://wiki.edg.com/bin/view/Wg21prague/P1708R2SG19>*
*>*
*> Review Jolanta Polish feedback.*
*> <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2119r0.html> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2119r0.html
< <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2119r0.html> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2119r0.html>*


2.2.1.4 <http://2.2.1.4> : Matrix paper

2.2.3 any other proposal for reviews?

2.3 Other Papers and proposals

P1416R1: SG19 - Linear Algebra for Data Science and Machine Learning
 <https://docs.google.com/document/d/1IKUNiUhBgRURW-UkspK7fAAyIhfXuMxjk7xKikK4Yp8/edit#heading=h.tj9hitg7dbtr> https://docs.google.com/document/d/1IKUNiUhBgRURW-UkspK7fAAyIhfXuMxjk7xKikK4Yp8/edit#heading=h.tj9hitg7dbtr

P1415: Machine Learning Layered list
 <https://docs.google.com/document/d/1elNFdIXWoetbxjO1OKol_Wj8fyi4Z4hogfj5tLVSj64/edit#heading=h.tj9hitg7dbtr> https://docs.google.com/document/d/1elNFdIXWoetbxjO1OKol_Wj8fyi4Z4hogfj5tLVSj64/edit#heading=h.tj9hitg7dbtr

2.2.2 SG14 Linear Algebra progress:
Different layers of proposal
 <https://docs.google.com/document/d/1poXfr7mUPovJC9ZQ5SDVM_1Nb6oYAXlK_d0ljdUAtSQ/edit> https://docs.google.com/document/d/1poXfr7mUPovJC9ZQ5SDVM_1Nb6oYAXlK_d0ljdUAtSQ/edit

2.5 Future F2F meetings:

2.6 future C++ Standard meetings:
 <https://isocpp.org/std/meetings-and-participation/upcoming-meetings> https://isocpp.org/std/meetings-and-participation/upcoming-meetings

None

3. Any other business

New reflector

 <http://lists.isocpp.org/mailman/listinfo.cgi/sg19> http://lists.isocpp.org/mailman/listinfo.cgi/sg19

Old Reflector
 <https://groups.google.com/a/isocpp.org/forum/#!newtopic/sg19> https://groups.google.com/a/isocpp.org/forum/#!newtopic/sg19
< <https://groups.google.com/a/isocpp.org/forum/?fromgroups=#!forum/sg14> https://groups.google.com/a/isocpp.org/forum/?fromgroups=#!forum/sg14>

Code and proposal Staging area

4. Review

4.1 Review and approve resolutions and issues [e.g., changes to SG's
working draft]

4.2 Review action items (5 min)

5. Closing process

5.1 Establish next agenda


5.2 Future meeting
Apr 13: Graph
May 11: Cancelled
June 15: Varna F2F (cancelled)
July 13: Stats
Aug 10: Matrix
Sep 14: Graph
Oct 12: Stats
Nov 9: Kona F2F Cancelled
Dec 14: Matrix

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