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researcher

Riku Togashi

18 papers hereh-index 8291 citations31 works total

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

author position
  • first author7
  • middle author8
  • last author3

Across the 18 of 18 papers where every author was matched, so the position is known.

fields
  • cs.IR10
  • cs.CV5
  • cs.LG2
  • cs.MM1

identity via Semantic Scholar / OpenAlex

activity
20172026
most citedCurse of "Low" Dimensionality in Recommender Systems

9 citations · 34 across the 18 of their papers we have counts for

collaborators
Showing 2021Show all

2 papers · 1 filter

cs.LG2021

Scalable Personalised Item Ranking through Parametric Density Estimation

Riku Togashi, Masahiro Kato, Mayu Otani +2

Learning from implicit feedback is challenging because of the difficult nature of the one-class problem: we can observe only positive examples. Most conventional methods use a pair…

cs.IR2021★ 1 cited

Density-Ratio Based Personalised Ranking from Implicit Feedback

Riku Togashi, Masahiro Kato, Mayu Otani +1

Learning from implicit user feedback is challenging as we can only observe positive samples but never access negative ones. Most conventional methods cope with this issue by adopti…

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