  E-commerce provides an efficient and effective way to exchange goods between
sellers and customers. E-commerce has been a popular method for doing business,
because of its simplicity of having commerce activity transparently available,
including customer voice and opinion about their own experience. Those
experiences can be a great benefit to understand customer experience
comprehensively, both for sellers and future customers. This paper applies to
e-commerces and customers in Indonesia. Many Indonesian customers expressed
their voice to open social network services such as Twitter and Facebook, where
a large proportion of data is in the form of conversational data. By
understanding customer behavior through open social network service, we can
have descriptions about the e-commerce services level in Indonesia. Thus, it is
related to the government's effort to improve the Indonesian digital economy
ecosystem. A method for finding core topics in large-scale internet
unstructured text data is needed, where the method should be fast but
sufficiently accurate. Processing large-scale data is not a straightforward
job, it often needs special skills of people and complex software and hardware
computer system. We propose a fast methodology of text mining methods based on
frequently appeared words and their word association to form network text
methodology. This method is adapted from Social Network Analysis by the model
relationships between words instead of actors.
