The document outlines strategies for enhancing research efficiency, emphasizing the importance of effective literature review, management skills, and collaborative efforts among researchers. It discusses two main methods for skill enhancement: learning from peers and leveraging online resources, while highlighting the challenges and advantages of each approach. Additionally, it provides insights into the dynamics of various research labs, communication practices, and the value of sharing knowledge across institutions.
The document appears to reference several academic papers and conferences, including submissions to IEEE and ACM journals. It mentions contributors and includes links to grant information. The specific content and findings are not detailed in the provided text.
Metric Recovery from Unweighted k-NN Graphsjoisino
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The document discusses metric recovery from unweighted k-nearest neighbor (k-nn) graphs, highlighting its applications in user-side recommender systems and graph neural networks (GNNs). It outlines the challenges in estimating the latent coordinates from the k-nn graphs and presents a systematic approach to address these difficulties, including the importance of edge lengths and densities. The findings suggest that GNNs can successfully recover hidden features from graph structures, even with uninformative input features.
The document outlines strategies for enhancing research efficiency, emphasizing the importance of effective literature review, management skills, and collaborative efforts among researchers. It discusses two main methods for skill enhancement: learning from peers and leveraging online resources, while highlighting the challenges and advantages of each approach. Additionally, it provides insights into the dynamics of various research labs, communication practices, and the value of sharing knowledge across institutions.
The document appears to reference several academic papers and conferences, including submissions to IEEE and ACM journals. It mentions contributors and includes links to grant information. The specific content and findings are not detailed in the provided text.
Metric Recovery from Unweighted k-NN Graphsjoisino
?
The document discusses metric recovery from unweighted k-nearest neighbor (k-nn) graphs, highlighting its applications in user-side recommender systems and graph neural networks (GNNs). It outlines the challenges in estimating the latent coordinates from the k-nn graphs and presents a systematic approach to address these difficulties, including the importance of edge lengths and densities. The findings suggest that GNNs can successfully recover hidden features from graph structures, even with uninformative input features.
Towards Principled User-side Recommender Systemsjoisino
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Ryoma Sato proposes a method called Consul for building user-side recommender systems when the system provided by a service like Twitter is unsatisfactory. Consul allows users to build recommender systems using only the information available to them through web pages, without having access to the full database. It does this while maintaining consistency with the official system, ensuring diversity in recommendations based on sensitive attributes, and being locally efficient without downloading all pages. Experiments show Consul performs as well as existing methods but is much more efficient due to its localized traversal of the recommendation graph. A case study demonstrates a user successfully building a new recommender system for Twitter using Consul.
CLEAR: A Fully User-side Image Search Systemjoisino
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This document describes CLEAR, a fully user-side image search system developed by Ryoma Sato at Kyoto University. CLEAR allows users to build and publish their own image search engines without backend servers by formulating image search as a multi-armed bandit problem and implementing the system using only JavaScript on the client-side. This overcomes limitations of traditional search engines which require extensive resources to operate. CLEAR demonstrates that ordinary users can now develop customized image search tools.
Private Recommender Systems: How Can Users Build Their Own Fair Recommender S...joisino
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JSSST 2022 https://jssst2022.wordpress.com/ における発表スライドです。
論文
Private Recommender Systems: How Can Users Build Their Own Fair Recommender Systems without Log Data? (SDM 2022)
arXiv: https://arxiv.org/abs/2105.12353
This document provides an introduction to spectral graph theory. It discusses how spectral graph theory connects combinatorics and algebra through studying graphs using eigenvalues and eigenvectors of adjacency matrices. It covers applications of spectral graph theory such as spectral clustering, which uses eigenvectors of the graph Laplacian as features for clustering nodes, and graph convolutional networks, which apply graph filtering and node-wise transformations to classify nodes in a graph.
第6回 統計?機械学習若手シンポジウムの公演で使用したユーザーサイド情报検索システムについてのスライドです。
https://sites.google.com/view/statsmlsymposium21/
Private Recommender Systems: How Can Users Build Their Own Fair Recommender Systems without Log Data? (SDM 2022) https://arxiv.org/abs/2105.12353
Retrieving Black-box Optimal Images from External Databases (WSDM 2022) https://arxiv.org/abs/2112.14921
Random Features Strengthen Graph Neural Networksjoisino
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This document proposes using random features to strengthen graph neural networks (GNNs) for node classification tasks. It summarizes that GNNs cannot distinguish nodes with identical features and are not universal approximators. By adding random features to each node, GNNs can distinguish nodes and tree views, allowing them to detect graph structures like triangles. Experiments on synthetic and real-world graphs show random feature GNNs outperform standard GNNs and are a simple way to boost GNN expressiveness and performance.
Fast Unbalanced Optimal Transport on a Treejoisino
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This document presents research by Ryoma Sato of Kyoto University on fast unbalanced optimal transport (UOT) algorithms that efficiently handle the transport of distribution masses while being robust to outliers. It discusses the challenges of UOT in one-dimensional spaces and introduces a new algorithm that reduces the computational complexity to O(n log? n), which is significantly faster than traditional methods. The proposed method extends to tree spaces and demonstrates empirical effectiveness, computing UOT with one million masses in under one second.