Search Results for author: Takeshi Kurashima

Found 8 papers, 0 papers with code

Aggregated Multi-output Gaussian Processes with Knowledge Transfer Across Domains

no code implementations24 Jun 2022 Yusuke Tanaka, Toshiyuki Tanaka, Tomoharu Iwata, Takeshi Kurashima, Maya Okawa, Yasunori Akagi, Hiroyuki Toda

Since the supports may have various granularities depending on attributes (e. g., poverty rate and crime rate), modeling such data is not straightforward.

Attribute Gaussian Processes +2

Dynamic Hawkes Processes for Discovering Time-evolving Communities' States behind Diffusion Processes

no code implementations24 May 2021 Maya Okawa, Tomoharu Iwata, Yusuke Tanaka, Hiroyuki Toda, Takeshi Kurashima, Hisashi Kashima

Hawkes processes offer a central tool for modeling the diffusion processes, in which the influence from the past events is described by the triggering kernel.

Marketing

Probabilistic Optimal Transport based on Collective Graphical Models

no code implementations16 Jun 2020 Yasunori Akagi, Yusuke Tanaka, Tomoharu Iwata, Takeshi Kurashima, Hiroyuki Toda

In this study, we propose a new framework in which OT is considered as a maximum a posteriori (MAP) solution of a probabilistic generative model.

Spatially Aggregated Gaussian Processes with Multivariate Areal Outputs

no code implementations NeurIPS 2019 Yusuke Tanaka, Toshiyuki Tanaka, Tomoharu Iwata, Takeshi Kurashima, Maya Okawa, Yasunori Akagi, Hiroyuki Toda

By deriving the posterior GP, we can predict the data value at any location point by considering the spatial correlations and the dependences between areal data sets, simultaneously.

Gaussian Processes Transfer Learning

Deep Mixture Point Processes: Spatio-temporal Event Prediction with Rich Contextual Information

no code implementations21 Jun 2019 Maya Okawa, Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, Naonori Ueda

Though many point processes have been proposed to model events in a continuous spatio-temporal space, none of them allow for the consideration of the rich contextual factors that affect event occurrence, such as weather, social activities, geographical characteristics, and traffic.

Marketing Point Processes

Refining Coarse-grained Spatial Data using Auxiliary Spatial Data Sets with Various Granularities

no code implementations21 Sep 2018 Yusuke Tanaka, Tomoharu Iwata, Toshiyuki Tanaka, Takeshi Kurashima, Maya Okawa, Hiroyuki Toda

With the proposed model, a distribution for each auxiliary data set on the continuous space is modeled using a Gaussian process, where the representation of uncertainty considers the levels of granularity.

Gaussian Processes

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