Search Results for author: Ioannis Z. Emiris

Found 4 papers, 2 papers with code

Modeling asset allocation strategies and a new portfolio performance score

no code implementations9 Dec 2020 Apostolos Chalkis, Emmanouil Christoforou, Ioannis Z. Emiris, Theodore Dalamagas

The first concerns crisis detection, which is of prime interest for the public in general and for policy makers in particular because of the significant impact that crises have on the economy.

Anomaly Detection Portfolio Optimization

Practical linear-space Approximate Near Neighbors in high dimension

2 code implementations22 Dec 2016 Georgia Avarikioti, Ioannis Z. Emiris, Ioannis Psarros, Georgios Samaras

Experiments confirm the sublinear dependence on $n$ and the linear dependence on the dimension.

Computational Geometry

Web-Scale Image Clustering Revisited

1 code implementation ICCV 2015 Yannis Avrithis, Yannis Kalantidis, Evangelos Anagnostopoulos, Ioannis Z. Emiris

Large scale duplicate detection, clustering and mining of documents or images has been conventionally treated with seed detection via hashing, followed by seed growing heuristics using fast search.

Image Clustering Quantization

A General Solver Based on Sparse Resultants

no code implementations27 Jan 2012 Ioannis Z. Emiris

Sparse (or toric) elimination exploits the structure of polynomials by measuring their complexity in terms of Newton polytopes instead of total degree.

Symbolic Computation Numerical Analysis Commutative Algebra 13P15 Solving polynomial systems, resultants (Primary), 68W30 Symbolic computation and algebraic computation (secondary) I.1; F.2.1; G.4

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