| 2020 | SMC | Quantitative Analytic Framework of Relations among Unstructured Data. | Takeru Yokoi, Ryota Ikushima, Roliana Ibrahim |
| 2017 | SoMeT | A Review on Service Oriented Architecture Approach in Flood Disaster Management Framework for Sentiment Analysis: Malaysia Context. | Ummu Hani' Hair Zaki, Roliana Ibrahim, Shahliza Abd Halim, Takeru Yokoi |
| 2016 | ACIIDS | Integrated Feature Selection Methods Using Metaheuristic Algorithms for Sentiment Analysis. | Alireza Yousefpour, Roliana Ibrahim, Haza Nuzly Abdul Hamed, Takeru Yokoi |
| 2016 | WWW | Analytical Framework of Relations among Nations using News Articles. | Takeru Yokoi, Masato Fukuchi, Michihiro Kobayakawa, Roliana Ibrahim, Ali Selamat |
| 2015 | SMC | Emoticon Extraction Method Based on Eye Characters and Symmetric String. | Takeru Yokoi, Mizuki Kobayashi, Roliana Ibrahim |
| 2014 | SoMeT | Sentence-Based Plagiarism Detection for Japanese Document Based on Common Nouns and Part-of-Speech Structure. | Takeru Yokoi |
| 2014 | SoMeT | Sentence-based Plagiarism Detection focusing on Nouns and Part-of-Speech Structure. | Takeru Yokoi, Gouki Oikawa, Mitsuru Iwata, Takashi Sato, Michihiro Kobayakawa |
| 2009 | WEBIST | Topic Extraction from Divided Document Sets. | Takeru Yokoi, Hidekazu Yanagimoto |
| 2006 | SMC | Index Words Selection with ICA. | Takeru Yokoi, Hidekazu Yanagimoto, Sigeru Omatu |