29 citations · 42 across the 7 of their papers we have counts for
11 papers
Identifying macroscopic features in foreign visitor travel pathways
Tatsuro Kawamoto, Ryutaro Hashimoto
Human travel patterns are commonly studied as networks in which the points of departure and destination are encoded as nodes and the travel frequency between two points is recorded…
Palette diagram: A Python package for visualization of collective categorical data
Chihiro Noguchi, Tatsuro Kawamoto
Categorical data, wherein a numerical quantity is assigned to each category (nominal variable), are ubiquitous in data science. A palette diagram is a visualization tool for a larg…
Spectral clustering of annotated graphs using a factor graph representation
Tatsuro Kawamoto
Graph-structured data commonly have node annotations. A popular approach for inference and learning involving annotated graphs is to incorporate annotations into a statistical mode…
Fragility of spectral clustering for networks with an overlapping structure
Chihiro Noguchi, Tatsuro Kawamoto
Communities commonly overlap in real-world networks. This is a motivation to develop overlapping community detection methods, because methods for non-overlapping communities may no…
Democratic summary of public opinions in free-response surveys
Tatsuro Kawamoto, Takaaki Aoki
Social surveys have been widely used as a method of obtaining public opinion. Sometimes it is more ideal to collect opinions by presenting questions in free-response formats than i…
Evaluating network partitions through visualization
Chihiro Noguchi, Tatsuro Kawamoto
Network clustering requires making many decisions manually, such as the number of groups and a statistical model to be used. Even after filtering using an information criterion or…