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Rikio Onai

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Publications by Rikio Onai (bibliography)

2011

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Ochi, Masanao, Okabe, Makoto and Onai, Rikio (2011): Rating prediction using feature words extracted from customer reviews. In: Proceedings of the 34th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 2011. pp. 1205-1206.

“We developed a simple method of improving the accuracy of rating prediction using feature words extracted from customer reviews. Many rating predictors work well for a small and dense dataset of customer reviews. However, a practical dataset tends to be large and sparse, because it often includes too many products for each customer to buy and evaluate. Data sparseness reduces prediction accuracy. To improve accuracy, we reduced the dimension of the feature vector using feature words extracted by analyzing the relationship between ratings and accompanying review comments instead of using ratings. We applied our method to the Pranking algorithm and evaluated it on a corpus of golf course reviews supplied by a Japanese e-commerce company. We found that by successfully reducing data sparseness, our method improves prediction accuracy as measured using RankLoss.”

1997

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Harada, Yasunori, Miyamoto, Kenji and Onai, Rikio (1997): VISPATCH: Graphical Rule-Based Language Controlled by User Event. In: VL 1997 1997. pp. 162-163.

1985

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Murakami, Kunio, Kakuta, Takeo, Onai, Rikio and Ito, Noriyoshi (1985): Research on Parallel Machine Architecture for Fifth-Generation Computer Systems. In IEEE Computer, 18 (6) pp. 76-92.

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