Collective multiagent sequential decision making under uncertainty

DT Nguyen, A Kumar, HC Lau - Proceedings of the AAAI conference on …, 2017 - ojs.aaai.org
Multiagent sequential decision making has seen rapid progress with formal models such as
decentralized MDPs and POMDPs. However, scalability to large multiagent systems and …

Differentially private learning of undirected graphical models using collective graphical models

G Bernstein, R McKenna, T Sun… - International …, 2017 - proceedings.mlr.press
We investigate the problem of learning discrete graphical models in a differentially private
way. Approaches to this problem range from privileged algorithms that conduct learning …

Neural collective graphical models for estimating spatio-temporal population flow from aggregated data

T Iwata, H Shimizu - Proceedings of the AAAI Conference on Artificial …, 2019 - aaai.org
We propose a probabilistic model for estimating population flow, which is defined as
populations of the transition between areas over time, given aggregated spatio-temporal …

Exact and efficient inference for collective flow diffusion model via minimum convex cost flow algorithm

Y Akagi, T Nishimura, Y Tanaka, T Kurashima… - Proceedings of the …, 2020 - ojs.aaai.org
Abstract Collective Flow Diffusion Model (CFDM) is a general framework to find the hidden
movements underlying aggregated population data. The key procedure in CFDM analysis is …

MAP inference algorithms without approximation for collective graphical models on path graphs via discrete difference of convex algorithm

Y Akagi, N Marumo, H Kim, T Kurashima, H Toda - Machine Learning, 2023 - Springer
Collective graphical model (CGM) is a probabilistic model that provides a framework for
analyzing aggregated count data. Maximum a posteriori (MAP) inference of unobserved …

[PDF][PDF] Reinforcement learning for collective multi-agent decision making.(2018). Dissertations and Theses Collection (Open Access)

DT NGUYEN - methods - academia.edu
In this thesis, we study reinforcement learning algorithms to collectively optimize
decentralized policy in a large population of autonomous agents. We notice one of the main …

Probabilistic optimal transport based on collective graphical models

Y Akagi, Y Tanaka, T Iwata, T Kurashima… - arxiv preprint arxiv …, 2020 - arxiv.org
Optimal Transport (OT) is being widely used in various fields such as machine learning and
computer vision, as it is a powerful tool for measuring the similarity between probability …

[PDF][PDF] Learning a logistic model from aggregated data

A Gilotte, D Rohde - AdKDD Workshop, 2021 - papers.adkdd.org
In this work, we investigate a method to learn a discriminative model predicting a binary
label, from aggregated data only. Our aggregated data consists in a set of contingency …

Non-approximate inference for collective graphical models on path graphs via discrete difference of convex algorithm

Y Akagi, N Marumo, H Kim… - Advances in Neural …, 2021 - proceedings.neurips.cc
The importance of aggregated count data, which is calculated from the data of multiple
individuals, continues to increase. Collective Graphical Model (CGM) is a probabilistic …

Co-occurrence estimation from aggregated data with auxiliary information

T Iwata, N Marumo - Proceedings of the AAAI Conference on Artificial …, 2020 - aaai.org
Complete co-occurrence data are unavailable in many applications, including purchase
records and medical histories, because of their high cost or privacy protection. Even with …