CATALOGO DEI PRODOTTI DELLA RICERCA
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishIn several applications of automatic diagnosis and active learning a central problem is the evaluation of a discrete function by adaptively querying the values of its variables until the values read uniquely determine the value of the function. In general reading the value of a variable is done at the expense of some cost (computational or possibly a fee to pay the corresponding experiment). The goal is to design a strategy for evaluating the function incurring little cost (in the worst case or in expectation according to a prior distribution on the possible variables' assignments). Our algorithm builds a strategy (decision tree) which attains a logarithmic approximation simultaneously for the expected and worst cost spent. This is best possible since, under standard complexity assumption, no algorithm can guarantee o(logn) approximation.
| Titolo: | Diagnosis determination: decision trees optimizing simultaneously worst and expected testing cost |
| Autori: | |
| Data di pubblicazione: | 2014 |
| Handle: | http://hdl.handle.net/11562/881220 |
| ISBN: | 978-163439397-3 |
| Appare nelle tipologie: | 04.01 Contributo in atti di convegno |
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