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A. Ntoulas

4 papers hereh-index 202.9k citations51 works total

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

author position
  • first author1
  • middle author3

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • cs.IR2
  • cs.LG2

identity via Semantic Scholar / OpenAlex

activity
20112021
most citedUsing temporal IDF for efficient novelty detection in text streams

16 citations · 23 across the 4 of their papers we have counts for

collaborators

4 papers

cs.LG2021★ 6 cited

DeepReduce: A Sparse-tensor Communication Framework for Distributed Deep Learning

Kelly Kostopoulou, Hang Xu, Aritra Dutta +3

Sparse tensors appear frequently in distributed deep learning, either as a direct artifact of the deep neural network's gradients, or as a result of an explicit sparsification proc…

cs.IR2014★ 16 cited

Using temporal IDF for efficient novelty detection in text streams

Margarita Karkali, Francois Rousseau, Alexandros Ntoulas +1

Novelty detection in text streams is a challenging task that emerges in quite a few different scenarios, ranging from email thread filtering to RSS news feed recommendation on a sm…

cs.LG2013★ 1 cited

A Data Management Approach for Dataset Selection Using Human Computation

Alexandros Ntoulas, Omar Alonso, Vasilis Kandylas

As the number of applications that use machine learning algorithms increases, the need for labeled data useful for training such algorithms intensifies. Getting labels typically in…

cs.IR2011

Efficient Query Rewrite for Structured Web Queries

Sreenivas Gollapudi, Samuel Ieong, Alexandros Ntoulas +1

Web search engines and specialized online verticals are increasingly incorporating results from structured data sources to answer semantically rich user queries. For example, the q…

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