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- Hiroaki Ishii, Shogo Shiode, Toshio Nishida, Yoshikazu Namasuya
- Discrete Applied Mathematics
- 1981

- Shogo Shiode, Zvi Drezner
- European Journal of Operational Research
- 2003

In this paper we consider a location model based on the threshold concept. We find the best location such that the probability of revenues falling short of the threshold is minimized. This objective is appropriate when a firm will not survive if its revenues fall below a known threshold. A new store is to be located. Demand is not deterministic but rather… (More)

- Shogo Shiode, Kuang Yih Yeh, Hao-Ching Hsia
- Computers & Industrial Engineering
- 2012

In this paper, we deal with competitive facility location problems in which the demand of each customer depends on the facilities. In our models two competitive companies intend to locate their facilities on the market in order to maximize the total demand acquired from the market. The distances between the facilities and the demand points are measured by… (More)

- Zvi Drezner, Shogo Shiode
- European Journal of Operational Research
- 2007

- Hiroaki Ishii, Shogo Shiode, Hark Hwang, Gwo-Hshiung Tzeng, Hirosato Seki
- Computers & Industrial Engineering
- 2012

- Junko Shibata, Koji Okuhara, Shogo Shiode, Hiroaki Ishii
- 2008 Eighth International Conference on…
- 2008

The self-organizing map that Kohonen has proposed maps high-dimensional vector data to low-dimensional space by phase conservation. And, it generates the feature map that visually catches the similarity among data. In addition, the reference vector where the unit in a competitive layer of SOM is achieved can interpolate an intermediate vector of the input… (More)

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