Inclusion of Reviews in dataset
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Dr Chen
Has there been any investigation on the inclusion of reviews in a data set vs restricting the data set to just research articles?
I ask because in my current project I have generated a Document co-citation network from a data set with and without reviews. Based on a cursory analysis of the network on a cluster level, it seems that the research article only network may be more valid with more clear themes emerging within clusters. The reviews also seem to have formed many of their own micro-clusters (single articles), which weren't present in research article only network.
The program seems fantastic otherwise, thank you very much for developing it.
Liam
Your observations accurately reflect the differences between article only and review only networks. Reviews tend to add more intercluster links than original research. False positives are possible. On the other hand, reviews can be seen as an extra layer of evaluative selection: articles included in a review receive somewhat more attention than those excluded.
You may use the following strategy in CiteSpace:
1. create a network based on articles only as A
2. create a network based on reviews only as B
3. create a network based on the combination of articles and reviews as C
4. superimpose A or B over C with Overlays