Six weighting schemes and six similarity coefficients have been used in a systematic comparison of measures for the determination of inter‐molecular structural similarity. The effectiveness of the measures for molecular property prediction was tested using sixteen small sets of compounds for which property data was available. The comparison suggests that the weighting of fragments by their frequency of occurrence in molecules is often useful, but that there are only small differences in performance between the similarity coefficients tested.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImplementation of nearest-neighbor searching in an online chemical structure search systemPeter Willett, Vivienne Winterman, and David BawdenCite this: J. Chem. Inf. Comput. Sci. 1986, 26, 1, 36–41Publication Date (Print):February 1, 1986Publication History Published online1 May 2002Published inissue 1 February 1986https://pubs.acs.org/doi/10.1021/ci00049a008https://doi.org/10.1021/ci00049a008research-articleACS PublicationsRequest reuse permissionsArticle Views313Altmetric-Citations112LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImplementation of nonhierarchic cluster analysis methods in chemical information systems: selection of compounds for biological testing and clustering of substructure search outputPeter Willett, Vivienne Winterman, and David BawdenCite this: J. Chem. Inf. Comput. Sci. 1986, 26, 3, 109–118Publication Date (Print):August 1, 1986Publication History Published online1 May 2002Published inissue 1 August 1986https://pubs.acs.org/doi/10.1021/ci00051a005https://doi.org/10.1021/ci00051a005research-articleACS PublicationsRequest reuse permissionsArticle Views211Altmetric-Citations116LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts