Πτολεμαίου Πρόχειροι Κανόνεϲ. Les «Tables Faciles» de Ptolémée/Ptolemy’s <i>Handy Tables</i>. Tables A1–A2

Modélisation de tables de contingence par arbres d'induction

RÉSUMÉ. Cet article est consacré à l’évaluation statistique des descriptions de tables de contingence fournies par les arbres d’induction. On se limite au cas particulier de données catégorielles. Trois aspects sont successivement abordés. i) La nature de l’ajustement en apprentissage supervisé, où l’on souligne la distinction entre prédiction de valeurs individuelles et prédiction de leur repr...

296 Recent Mathematical Tables Recent Mathematical Tables

In several problems considered in the Antenna Laboratory, Cambridge, Mass., the functions fi(x) = x tan * and/2(ac) = x tanh x have arisen. Tables of these functions with the required range, interval of argument, and number of significant figures apparently do not exist; consequently, such tables were computed specifically to satisfy these needs. They were prepared in the form of reports with t...

Tables de transposition pour la satisfaction de contraintes

In this paper, a state-based approach for the Constraint Satisfaction Problem (CSP) is proposed. The key novelty is an original use of state memorization during search to prevent the exploration of similar subnetworks. Classical techniques to avoid the resurgence of previously encountered conflicts involve recording conflict sets. This contrasts with our statebased approach which records subnet...

Sizes of de ision tables and de ision trees

Probability tables

Suppose that we have written, in a sort of table, the statistical data collected from a group of experiments — the nature of which can be classical, quantum, or something else. Suppose that we also want to store this table’s data in a compact way. How could we proceed? In this paper it is shown that, given the situation described above, when we try to store or organise the table’s data in a mor...