Abstract: A system and method for determining a location within a physical structure are described. The location within the physical structure can be determined by storing a model of a physical structure comprising a plurality of nodes connected by a plurality of struts, each of the nodes and struts of the model corresponding to respective nodes and struts of the physical structure; assigning a non-unique ID to each node of the model according to a pseudo-random sequence, wherein each node of the physical structure encodes the non-unique ID assigned to the corresponding node of the model; receiving a set of non-unique IDs encoded onto respective nodes of a contiguous subset of nodes of the physical structure; locating a set of non-unique IDs in the model corresponding to the received set of non-unique IDs; and determining a location in the physical structure from the located set of non-unique IDs in the model.

Abstract: A system and method for determining a location within a physical structure are described. The location within the physical structure can be determined by storing a model of a physical structure comprising a plurality of nodes connected by a plurality of struts, each of the nodes and struts of the model corresponding to respective nodes and struts of the physical structure; assigning a non-unique ID to each node of the model according to a pseudo-random sequence, wherein each node of the physical structure encodes the non-unique ID assigned to the corresponding node of the model; receiving a set of non-unique IDs encoded onto respective nodes of a contiguous subset of nodes of the physical structure; locating a set of non-unique IDs in the model corresponding to the received set of non-unique IDs; and determining a location in the physical structure from the located set of non-unique IDs in the model.

Abstract: A computerized learning machine for implementing adaptive problem solving includes an information processing device, a storage device, an output device and an input device. The adaptive problem solving method is implemented by: a) retrieving from the storage device a first question; b) outputting to the output device the first question; c) receiving from the input device an answer from the user; d) assigning a fuzzy logic coefficient to the answer; e) accessing from the storage device a learning route authority to determine the identity of a second question, the determination being dependent on the fuzzy logic coefficient; and f) repeating steps a) to e) for the second question.