Search Results for author: Kei Kobayashi

Found 4 papers, 1 papers with code

Representing Hierarchical Structure by Using Cone Embedding

no code implementations16 Feb 2021 Daisuke Takehara, Kei Kobayashi

Graph embedding is becoming an important method with applications in various areas, including social networks and knowledge graph completion.

Graph Embedding Knowledge Graph Completion

Why is the Mahalanobis Distance Effective for Anomaly Detection?

no code implementations1 Mar 2020 Ryo Kamoi, Kei Kobayashi

This suggests that the reason the Mahalanobis confidence score works so well is mistaken, and makes use of different information from ODIN, another popular OoD detection method based on prediction confidence.

Anomaly Detection General Classification +2

Likelihood Assignment for Out-of-Distribution Inputs in Deep Generative Models is Sensitive to Prior Distribution Choice

no code implementations15 Nov 2019 Ryo Kamoi, Kei Kobayashi

This paper focuses on the relationship between the choice of a prior distribution and the likelihoods assigned to out-of-distribution inputs.

Revisiting the Vector Space Model: Sparse Weighted Nearest-Neighbor Method for Extreme Multi-Label Classification

1 code implementation12 Feb 2018 Tatsuhiro Aoshima, Kei Kobayashi, Mihoko Minami

Finally, we show that the Sparse Weighted Nearest-Neighbor Method can process data points in real time on XMLC datasets with equivalent performance to SOTA models, with a single thread and smaller storage footprint.

BIG-bench Machine Learning Extreme Multi-Label Classification +3

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