RIF Telecon 30 Sep 08

30 Sep 2008


See also: IRC log


Hassan, Mike_Dean, josb, csma, ChrisW, Sandro, Gary, ChanghaiKe, AxelPolleres, Harold, DaveReynolds
LeoraMorgenstern, MichaelKifer, AdrianPaschke, MohamedZergaoui
Christian de Sainte Marie
Gary Hallmark



csma: PRR rechartered

Public comments

chrisw: pls check over Chris' responses to public comments

<Harold> http://www.w3.org/2005/rules/wiki/Response_to_OK

harold: seeks feedback on adding common logic references

Chrisw: common logic community doesn't care so much for BLD
... not politics, just "scientific" disagreement

csma: is it possible to map BLD to CL?

chrisw: we welcome help from CL community to do so

Action review

dates for F2F12 in Portland, OR, US: Jan 8,9 or Jan 15,16 2009 (both Thurs, Fri)

(other dates possible - at the moment only Tuesdays are bad)

<sandro> Then please include Wednesdays, Gary....

<sandro> and give at least one more week, I think.

<sandro> ChrisW, I've fixed the various formal scribe problems in Day 2, so the minutes are pretty, even if they might still be wrong, etc.

ok, I'll need to pencil those in first -- will send email later today

Axel: only strict safety need be defined

harold: weak safety now obsolete

axel: weak safety has some advantages, but harder to specify, so we drop it

hassan: XML<->PS translator work on hold now

harold: current translator uses old XML syntax

hassan: will update to latest pending agreement on some emailed issues

<Harold> The BLD LC PS frontend of Hassan's current tool is fine.

<Harold> The backend still is pre-LC.

<Harold> <side> is still wrongly used instead of <left>, <right>.

<sandro> Yes, of course we CAN do keyword-by-keyword improvements. Iterative design works damn well.

hassan: hopes to do new release by week's end

csma: all please email hassan with any issues

<Harold> Stella already translated http://www.w3.org/2005/rules/wiki/Factorial_Functional

<Hassan> Sandro: my point was not against iterative design (thanks for explaining though!) - it was about distracting the implementation effort from focusing on importing decisions

F2F11 debrief

<ChrisW> http://www.w3.org/2005/rules/wg/meeting/2008-09-26

chrisw: recaps F2F11 highlights
... accepted many test cases
... delay next UCR WD
... add usage for rdf:text for i18n
... drop roundtripping paragraph
... metadata should be preserved where possible
... no formal definition of profiles
... all RIF dialects SHOULD extend Core

<sandro> csma: quoting RFC-2119: 3. SHOULD This word, or the adjective "RECOMMENDED", mean that there may exist valid reasons in particular circumstances to ignore a particular item, but the full implications must be understood and carefully weighed before choosing a different course.

chrisw: external data model discussion led to some actions to propose a strawman
... discuss semantics of PRD conditions - should simplify by using more from the semantic structure
... external frames - increased understanding but didn't change anything
... agreed on equality in condition in Core, other Core issues
... discussed possible External(ATOMIC)

chrisw: parallel sessions for PRD and FLD

csma: recaps PRD breakout - no-repeat for conflict resolution

<ChanghaiKe> I have added: conflict resolution strategy could be additional XML tags, along with the rules. There can be several strategies like RETE, sequential, etc.

csma: agreed on overall semantic framework but the details seem to vary by engine
... but at least we can start to attack the details

Changhai: we need syntax to specify the conflict resolution

ChrisW: recaps FLD breakout
... add modules

I seem to recall MK will add aggregates to FLD

ChrisW: bug fix with defn of entailment
... negative guards permit entailment of disjunctive info

<josb> http://www.w3.org/2005/rules/wiki/Disjunctive_Information_from_Negative_Guards

<csma> Gary: aggregates are something we agreed we would take some times to discuss during F2F11, but we could not find the time

ChrisW: will be more discussion about negative guards
... addressed some DTB editors notes

csma: PRD breakout on actions
... 3 proposals for Do (?var), New, Retract/Remove/Erase object
... doc plans
... PRD, DTB, BLD, FLD - frozen in 1 month
... need DTB to LC before BLD to CR

for more detail on F2F11, please see minutes - available now

Summary of Action Items

[End of minutes]

Minutes formatted by David Booth's scribe.perl version 1.133 (CVS log)
$Date: 2008/09/30 16:15:46 $