Abstract: A device and a computer-implemented method for analyzing a dataset associated with a plurality of biological objects selected from cells, cell-derived vesicles, acellular microorganisms, and/or biofunctionalized materials; the dataset including N cytometric events, each associated with a biological object, each cytometric event being defined by at least two cytometric parameters measured for the corresponding biological object so that the dataset is represented by a cloud of N points in a D-dimensional space; the device and method being configured to output at least the hierarchical structure representing the different classes of biological objects and their mutual relationships.