Forecasting the Development of Self-Driving Technology in China by Multidimensional Information

Figure 6

Clustering results of patents: (a) 2002; (b) 2003; (c) 2004; (d) 2005; (e) 2006; (f) 2007; (g) 2008; (h) 2009; (i) 2010; (j) 2011; (k) 2012; (l) 2013; (m) 2014; (n) 2015; (o) 2016; (p) 2017; (q) 2018; (r) 2019.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

(n)

(o)

(p)

(q)

(r)