The supportability is not applicable to nematode and yeasts, because they do not have close high-quality reference platform. To give an opportunity to investigate platform validity, we introduced three independent scores, (i) Reproducibility score, (ii) Codon score and (iii) GO score. Reproducibility score is based on the supportability and reference adequateness. Codon score represents general consistency between coexpression and genome signature. GO score shows consistency between coexpression and GO annotation (see the detail of these scores). All assessment scores (Reproducibility score, Codon score and GO score) for every coexpression data set, including the previous versions, are shown in the Download page in COXPRESdb [http://coxpresdb.jp/download.shtml]. These scores for the previous coexpression versions were calculated based on the latest versions of coexpression, RefSeq sequences and GO annotations, respectively. Although these three measures are not conclusive to evaluate coexpression data, these measures gives an opportunity to consider the use of nematode and yeasts data. In addition, all the three measures support continuous refinement of coexpression data in COXPRESdb.