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Efstratios Gallopoulos

6 papers hereh-index 243.2k citations149 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author2
  • last author4

Across the 6 of 6 papers where every author was matched, so the position is known.

fields
  • cs.DS2
  • cs.IR2
  • cs.DC1
  • math.NA1

identity via Semantic Scholar / OpenAlex

activity
20062022
most citedEstimating the Trace of the Matrix Inverse by Interpolating from the Diagonal of an Approximate Inverse

36 citations · 120 across the 6 of their papers we have counts for

collaborators
Showing 2015Show all

2 papers · 1 filter

cs.IR2015★ 29 cited

EigenRec: Generalizing PureSVD for Effective and Efficient Top-N Recommendations

Athanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos +1

We introduce EigenRec; a versatile and efficient Latent-Factor framework for Top-N Recommendations that includes the well-known PureSVD algorithm as a special case. EigenRec builds…

math.NA2015★ 36 cited

Estimating the Trace of the Matrix Inverse by Interpolating from the Diagonal of an Approximate Inverse

Lingfei Wu, Jesse Laeuchli, Vassilis Kalantzis +2

A number of applications require the computation of the trace of a matrix that is implicitly available through a function. A common example of a function is the inverse of a large,…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.