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| | Statistics: modifications to world problems (1994) |
 | | In addition to the statistics on world problems given within the context of the 4th (1994-1995) edition of the Encyclopedia as a whole (separate table), in more detail (separate table), and in Note 2.3 Content: modifications, improvements and additions of the Introduction to Volume 1, additional statistics and commentary are given below. |
 | | In 1994, the "mother" problems of 222 of the hierarchies are assigned to the PF section ("fuzzy problems"), leaving a remainder of 99 more conventional "families of problems", which are headed by problems assigned to the PB or PC sections in all but 8 cases. |
 | | In 1994, 183 problems are not located within hierarchies (no broader/narrower relationships), although all have at least one other form of relationship (related/aggravating/reducing). |
| www.uia.org /encyclop/statmod4.php (1257 words) |
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