For IJNS, the predicted SNIP value for 2015 was 1.89, based on an APC of 3.62 for the last trend line during 1999-2014, whereas the actual SNIP value for 2015 was 2.13.
The IJNS SNIP trend was the most stable of the 3 journals, with just 2 slightly negative trend lines (Figure 1).
The JNS SNIP trend had only one negative trend line (Figure 2), although its slope was much steeper than those of IJNS. Additionally, the duration of this negative trend was much longer (i.e., nine years).
Lee, "Hierarchical Grid-Based Pairwise Key Pre-distribution in Wireless Sensor Networks, IJNS
, vol.8, no.3, pp.282-292, 2009.