Cobweb/3: A portable implementation

An algorithm is examined for data clustering and incremental concept formation. An overview is given of the Cobweb/3 system and the algorithm on which it is based, as well as the practical details of obtaining and running the system code. The implementation features a flexible user interface which includes a graphical display of the concept hierarchies that the system constructs

Tradeoffs in the utility of learned knowledge

Planning systems which make use of domain theories can produce more accurate plans and achieve more goals as the quality of their domain knowledge improves. MTR, a multi-strategy learning system, was designed to learn from system failures and improve domain knowledge used in planning. However, augmented domain knowledge can decrease planning efficiency. We describe how improved knowledge that becomes expensive to use can be approximated to yield calculated tradeoffs in accuracy and efficiency

Theresa M. Kelley, \u3ci\u3e Clandestine Marriage: Botany and Romantic Culture. \u3c/i\u3e A Review by James C. McKusick

Book review by James C. McKusick. Truly encyclopedic in scope, Clandestine Marriage traces the efflorescence of botanical discourse in the long Romantic period, from the foundation of the Linnaean system of classification in Systema Naturae (1735) through the first publication of Charles Darwin\u27s Origin of Species (1859). Kelley offers a comprehensive historical view of botany as a distinct nexus of interaction between literature and science, showing how the characteristic certainties of Enlightenment science broke down under the pressure of newly-discovered plant specimens from distant parts of the world, new ways of understanding the taxonomic relationships among various plant species, and new modes of presenting botanical information within the epistemic framework of the philosophy of science