N
Nicola Policella
Researcher at European Space Agency
Publications - 64
Citations - 904
Nicola Policella is an academic researcher from European Space Agency. The author has contributed to research in topics: Schedule & Scheduling (computing). The author has an hindex of 14, co-authored 64 publications receiving 865 citations. Previous affiliations of Nicola Policella include Sapienza University of Rome & European Space Operations Centre.
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Proceedings Article
Generating robust schedules through temporal flexibility
TL;DR: This paper considers the problem of generating partial order schedules (POS), that is, schedules which retain temporal flexibility and thus provide some degree of robustness in the face of unpredictable execution circumstances, and develops two orthogonal procedures for constructing a POS.
Journal Article
From precedence constraint posting to partial order schedules: A CSP approach to Robust Scheduling
TL;DR: This paper introduces the concept of a Partial Order Schedule (POS), a type of temporally flexible schedule in which each embedded temporal solution is also guaranteed to be resource feasible, as a target class of solutions that exploit flexibility in a robust way.
Proceedings ArticleDOI
A Generalized Timeline Representation, Services, and Interface for Automating Space Mission Operations
Steve Chien,Mark D. Johnston,Jeremy Frank,Mark Giuliano,Alicia Kavelaars,Christoph Lenzen,Nicola Policella +6 more
TL;DR: A basic timeline representation that can represent a set of state, resource, timing, and transition constraints is described and a number of planning and scheduling systems designed for space applications are described and described how they do and do not map onto this timeline model.
Journal ArticleDOI
Mexar2: AI Solves Mission Planner Problems
Amedeo Cesta,Gabriella Cortellessa,Simone Fratini,Angelo Oddi,Michel Denis,Alessandro Donati,Nicola Policella,Erhard Rabenau,J. Schulster +8 more
TL;DR: Mexar2 has significantly increased the data return over the whole Mars-Express mission duration and has effectively become a work companion for mission planners at the European Space Agency's European Space Operations Center in Darmstadt, Germany.
Proceedings Article
An innovative product for space mission planning an a posteriori evaluation
TL;DR: MEXAR2, a software tool that is currently used to synthesize the operational commands for data downlink from the on-board memory of an interplanetary space mission spacecraft to the ground stations is described.