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Pacific and Indochina Peninsula Sub-region Resolutions

(2016-10-06 14:02:38)
标签:

acm-icpc

asia-rules

cjhwang

icpc-asia

黄金雄(西杰)

分类: ACM-ICPC-Asia-Regional

Pacific and Indochina Peninsula Sub-region Resolutions:

                       ( Additions are in blue fonts.)

Notes: Asia Director tentatively approved this proposed pp resolution with a condition that a country cannot dominate too many teams to the WF. If it does happen, Asia Director reserves the authority to cut down the number of teams from that country for WF. The vacant slots will continue to be allocated for teams using the same formula.


Promoting teams to WF using the contest site participation score - Shieh-Ishihata formula.

Each site has its own site participation score (call it S).  Collect all instances of teams from all sites.  They have the WF-slot Advancing rank at a site, (call this rank R).  Divide the rank minus 1 by the site score, and assign this value ((R - 1) / S) to the team instance.  Sort the instances in ascending order using the value assigned to them.  Strike out the second or later instances from a same university in the sorted list.  Finally, qualify the exact number of universities from the head of the sorted list.

Before applying Shieh-Ishihata formula, the contest site participation score of a PP site will be increased by 0.02 * n points  if the site has n foreign teams and a max of n=25. This will encourage the hosting of more foreign teams.


The following is the rationale of the proposed rule.

The site participation score of a site is, in principle, the number of teams to be chosen from the site.  Stating differently, the number of teams chosen from a site should be proportional to the site score.

Dividing the rank by the site score and sorting team instances using this value exactly reflects this principle.

Subtracting one from the rank corresponds to the fact that the champion university at a site should always be qualified, that is, be treated somewhat differently from other lower rank teams.

Note that, according to the proposed rule, a champion university at a site is always qualified.  If the rank is 1, R - 1 is zero, so the team instance is always at the head of the sorted list.

Part of Asia Rules Applied only to PP Sub-Region:

 Preference Team for Under-represented Countries in PP:

             If the WF participation slot is available, and if there are too many countries in PP

             have no representation to WF, Asia Director may reserve a participation slot for

             one of these countries. The team receiving the under-represented preference must be

             ranked 10 or better in a university ranking in any Asia site. This preference is

             limited to a max of one team per year. The same country can accept this

             under-representation preference at most once every three years.

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