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Di Fonzo, Tommaso and Marini , Marco (2009) Simultaneous and Two-step Reconciliation of Systems of Time Series. [Working Paper] WORKING PAPER SERIES, 9/2009 . , PADOVA (Inedito)

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Abstract (english)

The reconciliation of systems of time series subject to both temporal and contemporaneous constraints can be solved in such a way that the temporal profiles of the original series be preserved “at the best” (movement preservation principle). Thanks to the sparsity of the linear system to be solved, a feasible procedure can be developed to solve simultaneously the problem. A two-step strategy might be more suitable in the case of large systems: firstly, each series is aligned to the corresponding temporal constraints according to a movement preservation principle; secondly, all series are reconciled within each low-frequency period according to the given constraints. This work compares the results of simultaneous and two-step approaches for medium/large datasets from real-life and discusses conditions under which the two-step procedure can be a valid alternative to the simultaneous one.

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EPrint type:Working Paper
Anno di Pubblicazione:29 May 2009
Key Words:Reconciliation, Movement preservation.
Settori scientifico-disciplinari MIUR:Area 13 - Scienze economiche e statistiche > SECS-S/01 Statistica
Struttura di riferimento:Dipartimenti > Dipartimento di Scienze Statistiche
Codice ID:7147
Depositato il:15 Sep 2014 13:35
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