Gene ontology terms obtained by the original Paraclu and RECLU. We retrieved gene ontology (GO) terms describing differentially expressed genes between the HeLa and THP-1 cells after clustering by the original Paraclu or RECLU. (A) GO terms annotated to abundantly expressed genes for the HeLa cells compared with the THP-1 cells identified by both the original Paraclu and RECLU. (B) GO terms characterizing more expressed for the HeLa cells than the THP-1 cells identified by only RECLU. (C) GO terms annotated to strongly expressed genes for the THP-1 cells by both methods. (D) GO terms describing highly expressed genes for the THP-1 cells by only RECLU.