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Jaccard similarity index
Also known as: Jaccard index, Jaccard-like Index
Facts (15)
Sources
Ethnobotanical study of wild edible plants in Shabelle Zone, Eastern ... link.springer.com Feb 5, 2026 8 facts
referenceThe Jaccard Similarity Index (JSI) is used to compare the composition of wild edible plants (WEPs) documented in the Shabelle Zone study with those reported from other regions of Ethiopia to measure floristic overlap and regional variation.
formulaThe Jaccard Similarity Index (JSI) is calculated using the formula: JSI = c / (a + b - c), where 'a' is the number of plant species recorded in the current study area, 'b' is the number of species identified in a different study area, and 'c' is the number of species common to both study areas.
measurementThe Jaccard Similarity Index (JSI) for wild edible plant species between the Shabelle Zone and other Ethiopian regions ranges from 0.046 (Sedie) to 0.407 (Lowland Ethiopia).
referenceThe acronym JSI stands for Jaccard Similarity Index.
procedureThe study of wild edible plants in Shabelle Zone, Eastern Ethiopia, utilized the Botanical Ethnoknowledge Index, Relative Frequency of Citation, Informant Consensus Factor, and Jaccard Similarity Index to evaluate species importance and knowledge patterns.
claimThe Jaccard Similarity Index for wild edible plants reflects that high similarity indicates shared environmental niches and cultural practices, low similarity signals unique ecological conditions and localized knowledge, and intermediate values highlight the influence of historical trade, mobility, and cross-cultural interactions.
claimThe Jaccard Similarity Index (JSI) values range from 0 to 1, where a score of 1 indicates complete similarity between compared areas and a score of 0 indicates no similarity.
measurementThe Jaccard Similarity Index (JSI) for wild edible plant species between the Shabelle Zone and other regions is 0.276 for East Shewa, 0.272 for Mieso, 0.261 for Kebridehar, 0.046 for Sedie, and 0.049 for Konso.
Medical Hallucination in Foundation Models and Their Impact on ... medrxiv.org Nov 2, 2025 4 facts
measurementThe aggregated inter-rater agreement for hallucination-type classification yielded a Jaccard-like Index of 0.272.
measurementThe aggregated inter-rater agreement for clinical-risk-level assessment yielded a Jaccard-like Index of 0.347.
claimThe authors characterize the Jaccard-like Index values of 0.272 and 0.347 as corresponding to a moderate level of agreement within the context of complex medical-text evaluation, consistent with previously reported ranges of 0.25–0.40 for similar clinical annotation tasks.
measurementThe Jaccard-like Index values used to measure inter-rater agreement in the study range from 0 to 1, with observed values indicating a moderate degree of agreement among annotators.
Medical Hallucination in Foundation Models and Their ... medrxiv.org Mar 3, 2025 1 fact
claimThe authors of the study interpret Jaccard-like Index values ranging from 0 to 1 as indicating a moderate level of inter-rater agreement, reflecting the inherent complexity and subjectivity of medical text analysis.
Ethnobotanical study of wild edible plants in the mountainous ... link.springer.com Oct 4, 2024 1 fact
formulaThe Jaccard index is calculated by comparing present and previous studies from surrounding regional and other areas by analyzing the percentages of quoted species and their uses.
Assessment of the nutritional value of a wild edible plant Scorzonera ... discovery.researcher.life Dec 1, 2025 1 fact
procedureResearchers in Alépé, Côte d’Ivoire, used Venn diagrams, Jaccard similarity index, and hierarchical clustering to compare the distribution of ethnobotanical knowledge across communities.