Atelier Visualisation et extraction de connaissances - Irisa

In this figure, we found that:
- The group of customers using the service 171 (group 2) and 177 (group 1) are majority
at Ninh Kieu District and Binh Thuy (main districts of Can Tho). Two groups
of customers in these districts are known the most use of “inter province call” service.
- Group 3 used by the local service, mostly in districts such as Chau Thanh, Chau
Thanh A, Phung Hiep (far Can Tho city)
- Group 4 used in the province, the majority of customers are in districts such as
Phung Hiep, Thot Not (near Can Tho city)
In short, when we see color matched two groups: regular intercity calls 171 and 177, the
majority of customers in this group at Ninh Kieu District and Binh Thuy District. Local
groups often referred to customers in the province. The majority of these customers in this
group are in the districts such as: Phung Hiep, Chau Thanh, Thot Not (near Can Tho city).
Group 3: Customer groups
in the local call, most of
them are post offices and
agents
FIG. 4 – Customers colorized by their type
Fig. 4 display points “customers” colorized by their type. In the group of customers using
local services (group 3), we found that most of them are post offices or record counters. In
F.Poulet, B.Le Grand : 9e Atelier Visualisation et Extraction de Connaissances 19