A Method to Monitor a BBS Using Feature Extraction of Text Data. - Yu Ichifuji; Susumu Konno; Hideaki Sone (Human.Society@Internet, 2005)

The Structure of Psychological Resistance and Incentives in Lifelog Disclosure: An Experimental Study with Smartphone Users. - Tetsuro Kobayashi; Noboru Sonehara; Yu Ichifuji (iThings/CPSCom, 2011)

Visualization of Recovery Situation in Disaster Area by Using Web Reservation Data. - Yu Ichifuji; Noboru Sonehara (ARES, 2014)

Impacts of Tourist Accommodations as Temporal Shelter on Evacuee Overflow for the Reassignment of Shelters Jurisdiction. - Yu Ichifuji; Noriaki Koide; Noboru Sonehara (ARES, 2015)

Relationship between Willingness to Share Photos and Preferred Level of Photo Blurring for Privacy Protection. - Yasuhiro Tanaka; Akihisa Kodate; Yu Ichifuji; Noboru Sonehara (ASE BD&SI, 2015)

A Social Network Analysis Based on Linear Programming-Shapley Value Approach for Information Mapping. - António Oliveira Nzinga René; Eri Domoto; Yu Ichifuji; Koji Okuhara (MISNC, 2015)

A study for understanding of tourist person trip pattern based on log data of Wi-Fi access points. - Yu Ichifuji; Yoshihide Matsuo; Noriaki Koide; Nobuhiro Akashi; Yoshitaka Terai; Toru Kobayashi (IEEE BigData, 2016)

Estimation of national tourism statistics based on Wi-Fi association log data. - Noriaki Koide; Yu Ichifuji; Hideki Yoshii; Noboru Sonehara (IEEE BigData, 2016)

Hotel plan popularity factor analysis of hotels in the Keihanshin region. - Hiroshi Tsuda; Masakazu Ando; Yu Ichifuji (IEEE BigData, 2016)

Tourism Local Community System Using LOD. - Toshihiko Wakahara; Toshitaka Maki; Kazuki Takahashi; Akihiro Yamaguchi; Shinichiro Kimoto; Akinori Takagi; Yu Ichifuji; Noboru Sonehara (CISIS, 2016)

Automatic LOD conversion system of tweet data associated with tourist spots. - Yuta Isono; Yu Ichifuji; Hiroyuki Sato; Shigeaki Tanimoto; Atsushi Kanai; Toru Kobayashi; Noboru Sonehara (GCCE, 2016)

Qualification confirmation system for smartphone application registration using SNS. - Toru Kobayashi; Takuya Tateishi; Kenichi Arai; Yu Ichifuji (GCCE, 2016)

Requirements for smart privacy aware photo sharing services by visual abstraction. - Yasuhiro Tanaka; Akihisa Kodate; Yu Ichifuji; Noboru Sonehara (GCCE, 2016)

A New Multiple Label Propagation Algorithm for Linked Open Data. - Toshitaka Maki; Kazuki Takahashi; Toshihiko Wakahara; Akihiro Yamaguchi; Yu Ichifuji; Noboru Sonehara (IMIS, 2016)

Fragrance to vector as scent technology. - Noriaki Koide; Yu Ichifuji (IEEE BigData, 2017)

Statistical analysis of hotel plan popularity in regional tourist areas. - Hiroshi Tsuda; Masakazu Ando; Yu Ichifuji (IEEE BigData, 2017)

Self-extending type open data platform for sightseeing promotion. - Fukuyoshi Kimura; Kenichi Arsi; Yu Ichifuji; Toru Kobsysshi; Noboru Sonehsrs (GCCE, 2017)

Data-Driven Decision-Making in Cyber-Physical Integrated Society. - Noboru Sonehara; Takahisa Suzuki; Akihisa Kodate; Toshihiko Wakahara; Yoshinori Sakai; Yu Ichifuji; Hideo Fujii; Hideki Yoshii (IEICE Trans. Inf. Syst., 2019)

Application of online booking data to hotel revenue management. - Taiga Saito; Akihiko Takahashi; Noriaki Koide; Yu Ichifuji (Int. J. Inf. Manag., 2019)

Research on methods for detecting and analyzing changes in odor over time using odor sensors. - Yasuhiro Isono; Hiroaki Matsuoka; Yu Ichifuji (GCCE, 2022)

Iinioi Cloud: A platform for Sensing and Analyzing Odor. - Hiroaki Matsuoka; Kyousuke Nakamura; Kenichi Hirai; Tomiharu Nagata; Yu Ichifuji (GCCE, 2022)

Analysis of Tourist Behavior Between Tourist Spots Depending on Tourists' Residence Area Using Location-Based Data. - Yu Ichifuji; Daisuke Murakami (IIAI-AAI-Winter, 2023)

Analysis of Factors Affecting Hotel Occupancy Rate. - Saya Kodera; Akihisa Kodate; Yu Ichifuji (IIAI-AAI-Winter, 2023)

Empirical Analysis of People Flow in Saga Arashiyama Area in Kyoto City Using the Location Registration Information. - Hiroshi Tsuda; Yu Ichifuji (IIAI-AAI-Winter, 2023)

A Time-Dependent GWR Model of the Flow of People in Kyoto City. - Hiroshi Tsuda; Yu Ichifuji (IIAI-AAI, 2024)