| 2026 | HCI | Impact of Price Evaluation on In-store Search and Payment Behavior. | Tokisato Yonekawa, Kohei Otake, Tomoki Yoshimi, Haruka Ohba, Takashi Namatame |
| 2025 | HCI | Generating Product Descriptions Using Customer Reviews on E-Commerce Sites. | Aina Ishikawa, Joshujio Takanami, Kohei Otake |
| 2024 | HCI | Relationship Between Consumers' Circumstances and Food Consumption Behavior. | Aina Ishikawa, Takashi Namatame, Kohei Otake |
| 2024 | HCI | Identifying Topics in the Community Related to Women's Fashion Magazines Using the Topic Model. | Emi Iwanade, Kohei Otake |
| 2024 | HCI | Identification of Key Factors to Improve Click-Through Rates Related to Email. | Akito Kumazawa, Takashi Namatame, Kohei Otake |
| 2024 | HCI | Evaluation of Location Detecting Accuracy Using Smart Watch BLE Connection. | Takaaki Mimura, Kohei Otake, Takashi Namatame |
| 2024 | HCI | Identification of Important Products in Electronics Retail Stores Using a Product-To-Product Network. | Jin Nakashima, Takashi Namatame, Kohei Otake |
| 2023 | HCI | Identification of Evaluation Items in Consumer Reviews Using Natural Language Processing Models with Social Media Information. | Emi Iwanade, Takashi Namatame, Kohei Otake |
| 2023 | HCI | Research on Store Evaluation in the Service Industry Through Analysis of Questionnaire Data on Employee Satisfaction. | Akito Kumazawa, Takashi Namatame, Kohei Otake |
| 2023 | HCI | Causal Inference of Direct Email Advertising Effects Using ID-POS Data of an Electronics Store. | Yujun Ma, Kohei Otake, Takashi Namatame |
| 2023 | HCI | Visualization of Community Structure Using Follower Data on Twitter and Comparison Between Stores. | Ryo Morooka, Takashi Namatame, Kohei Otake |
| 2023 | HCI | Evaluation of Consumer Behavior Focusing on the Change in Flow Line Impacted by Floor Renovation in a Fashion Department Store. | Jin Nakashima, Takashi Namatame, Kohei Otake |
| 2023 | HCI | Evaluating Differences in Consumer Behavior With and Without Planning and Predicting Unplanned Purchases. | Hiromi Tanabe, Kohei Otake, Takashi Namatame |
| 2023 | HCI | Analysis of Loyal Customers Considering Diversity of Customers. | Tomoki Yoshimi, Kohei Otake, Takashi Namatame |
| 2022 | HCI | Analysis of the Relationship Between Food and the Writer's Emotions Using a Meal Diary. | Shoki Eto, Kohei Otake, Takashi Namatame |
| 2022 | HCI | Evaluating Store Features Using Consumer Reviews in Beauty Salons. | Ryo Morooka, Takashi Namatame, Kohei Otake |
| 2022 | HCI | Analysis of Customer Purchasing Behavior in an Electronics Retail Store Using Eye Tracking Data. | Mei Nonaka, Kohei Otake, Takashi Namatame |
| 2022 | HCI | Resale Price Prediction Model for Used Electrical Products Using Deep Neural Network. | Shinnosuke Terasawa, Kohei Otake, Takashi Namatame |
| 2022 | HCI | Clustering and Feature Analysis of Shoes Brands Using Questionnaire Data and Word-of-Mouth Review Data. | Haruki Yamaguchi, Kohei Otake, Takashi Namatame |
| 2021 | HCI | Prediction for Private Brand Items Purchase Behavior of Hair Salons Using Bayesian Survival Analysis. | Yuho Katagiri, Kohei Otake, Takashi Namatame |
| 2021 | HCI | Analysis of User Relationships on Cooking Recipe Site Using Network Structure. | Yuzuki Kitajima, Kohei Otake, Takashi Namatame |
| 2021 | HCI | Estimation of Consumer Needs Using Review Data in Hotel Industry. | Shin Miyake, Kohei Otake, Tomofumi Uetake, Takashi Namatame |
| 2021 | HCI | Estimation of Consumer Needs Using Review Data in Hotel Industry. | Shin Miyake, Kohei Otake, Tomofumi Uetake, Takashi Namatame |
| 2021 | HCI | Evaluation of Cooking Recipes Using Their Texts and Images. | Mei Nonaka, Kohei Otake, Takashi Namatame |
| 2021 | HCI | Customer Visit Prediction Using Purchase Behavior and Tendency. | Retsuya Saito, Kohei Otake, Takashi Namatame |
| 2021 | HCI | Verification of Probabilistic Latent Semantic Analysis Clustering Solution Stability and Proposal of Optimal Initial Values Setting Method. | Shinnosuke Terasawa, Kohei Otake, Takashi Namatame |
| 2020 | HCI | Analysis of the Exposing Media Pattern that Affect Accessing Own Website. | Yuho Katagiri, Kohei Otake, Takashi Namatame |
| 2020 | HCI | A Study on the Similarity of Fashion Brands Using Consumer Relationship and Consumer Sense. | Yuzuki Kitajima, Kohei Otake, Takashi Namatame |
| 2020 | HCI | Analysis of Consumer Community Structure and Characteristic Within Social Media. | Shin Miyake, Kohei Otake, Takashi Namatame |
| 2020 | HCI | Comparison of the Purchasing Behavior for Oneself or Other Using Eye Tracking Gaze Data. | Mei Nonaka, Kohei Otake, Takashi Namatame |
| 2020 | HCI | Analysis of Fashion Market Trend Using Advertising Data of Shopping Information Site. | Retsuya Saito, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Customer Preference and Latent Needs Analysis Using Data of TV Viewing and Web Browsing. | An Guo, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Reciprocal Customer Transfer Analysis at Golf Course Reservation Service and Golf Goods EC Site. | Kento Hirota, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Analysis of the Characteristics of Customer Defection on a Hair Salon Considering Individual Differences. | Mana Iwata, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Analysis of Characteristics of Golf Course Using User Review at Golf Portal Site. | Mizuki Izawa, Takashi Namatame, Kohei Otake |
| 2019 | HCI | Analysis of Review Text on a Golf Course Reservation Site. | Shin Miyake, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Study on the Relationship Between Loyalty Program and Consumer Behavior on EC Site. | Yusuke Nakasatomi, Takashi Namatame, Kohei Otake |
| 2019 | HCI | Analysis of the Relation Between Price Range, Location and Reputation in Japanese Hotels. | Kohei Otake, Tomofumi Uetake |
| 2019 | HCI | Construction of Support System for Demand Driven Design of Cocktail Recipes by Deep Learning. | Soichiro Ota, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Purchase and Its Sign Analysis from Customer Behaviors Using Deep Convolutional Neural Networks. | Shintaro Saito, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Analysis of the Characteristic Behavior of Loyal Customers on a Golf EC Site. | Yue Su, Kohei Otake, Takashi Namatame |
| 2019 | HCI | Extraction of Product Features from Customer's Perspective Using User Review at the Golf EC Site. | Ryota Takahashi, Takashi Namatame, Kohei Otake |
| 2018 | HCI | Evaluation of Store Layout Using Eye Tracking Data in Fashion Brand Store. | Naoya Saijo, Taiki Tosu, Kei Morimura, Kohei Otake, Takashi Namatame |
| 2018 | HCI | Evaluation of Network Structure Using Similarity of Posts on Twitter. | Yusuke Sato, Kohei Otake, Takashi Namatame |
| 2018 | HCI | Proposal of Learning Support SNS Utilizing Gamification. | Syun Usami, Kohei Otake, Takashi Namatame |
| 2017 | HCI | Analysis of Trade Area for Retail Industry Store Using Consumer Purchase Record. | Sachiko Iwasaki, Ko Hashimoto, Kohei Otake, Takashi Namatame |
| 2017 | HCI | Collaborative Learning Support System for Programming Education Using Gamification. | Kohei Otake, Tomofumi Uetake |
| 2017 | HCI | Analysis of Cancellation Factors Based on the Characteristics of Golf Courses in Reservation Sites. | Naoya Saijo, Kohei Otake, Takashi Namatame |
| 2017 | HCI | Analysis of the Characteristics of Repeat Customer in a Golf EC Site. | Yusuke Sato, Kohei Otake, Takashi Namatame |
| 2017 | HCI | Valuation of Customer and Purchase Behavior of a Supermarket Chain Using ID-POS and Store Causal Data. | Syun Usami, Kohei Otake, Takashi Namatame |
| 2016 | HCI | Consideration of the Loyal Customer Sub-communities in a Consumer Community Through Analysis of Social Networking Services - A Case Study of a Fashion Brand. | Kohei Otake, Tomofumi Uetake, Akito Sakurai |
| 2015 | HCI | A Proposal of an SNS to Support Individual Practices in a Voluntary Community. | Kohei Otake, Masashi Komuro, Yoshihisa Shinozawa, Tomofumi Uetake, Akito Sakurai |
| 2015 | HCI | Proposal of a Visualization Method to Support Informal Communication Using Twitter Attributes. | Ryota Sasajima, Kohei Otake, Makoto Oka, Akito Sakurai |
| 2014 | HCI | A Proposal of a Support System for Motivation Improvement Using Gamification. | Kohei Otake, Ryosuke Sumita, Makoto Oka, Yoshihisa Shinozawa, Tomofumi Uetake, Akito Sakurai |
| 2013 | HCI | A Consideration of the Functions That Support to Find New Friends in Social Games. | Kohei Otake, Tomofumi Uetake, Akito Sakurai |
| 2011 | HCI | Quality of Community in Social Games. | Kohei Otake, Tadakazu Fukutomi, Tomofumi Uetake |