  Assessing advancements of technology is essential for creating science and
technology policies and making informed investments in the technology market.
However, current methods primarily focus on the characteristics of the
technologies themselves, making it difficult to accurately assess technologies
across various fields and generations. To address this challenge, we propose a
novel approach that uses bibliometrics, specifically literature citation
networks, to measure changes in knowledge flow throughout the evolution of
technology. This method can identify diverse trends in technology development
and is an effective tool for evaluating technological advancements. We
demonstrate its accuracy and applicability by applying it to mobile
communication technology and comparing its quantitative results with other
assessment methods. Our work provides critical support for assessing different
technical routes and formulating technology policy.
