Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CHOPtrey: contextual online polynomial extrapolation for enhanced
  multi-core co-simulation of complex systems   The growing complexity of Cyber-Physical Systems (CPS), together with
increasingly available parallelism provided by multi-core chips, fosters the
parallelization of simulation. Simulation speed-ups are expected from
co-simulation and parallelization based on model splitting into weak-coupled
sub-models, as for instance in the framework of Functional Mockup Interface
(FMI). However, slackened synchronization between sub-models and their
associated solvers running in parallel introduces integration errors, which
must be kept inside acceptable bounds.
  CHOPtrey denotes a forecasting framework enhancing the performance of complex
system co-simulation, with a trivalent articulation. First, we consider the
framework of a Computationally Hasty Online Prediction system (CHOPred). It
allows to improve the trade-off between integration speed-ups, needing large
communication steps, and simulation precision, needing frequent updates for
model inputs. Second, smoothed adaptive forward prediction improves
co-simulation accuracy. It is obtained by past-weighted extrapolation based on
Causal Hopping Oblivious Polynomials (CHOPoly). And third, signal behavior is
segmented to handle the discontinuities of the exchanged signals: the
segmentation is performed in a Contextual \& Hierarchical Ontology of Patterns
(CHOPatt).
  Implementation strategies and simulation results demonstrate the framework
ability to adaptively relax data communication constraints beyond
synchronization points which sensibly accelerate simulation. The CHOPtrey
framework extends the range of applications of standard Lagrange-type methods,
often deemed unstable. The embedding of predictions in lag-dependent smoothing
and discontinuity handling demonstrates its practical efficiency.

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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: supr-con
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph