| 摘要 |
<p>As more and more digital data is generated, the need to organize and index same in an orderly fashion increases. Much of this data has a geographical aspect, e.g., a photograph may depict a particular place, or a school newspaper may be published in a particular town. In collections of such data, geographical attributes can sometimes provide convenient organizational keys. In one embodiment, a database is structured to exploit geographical attributes as keys to physical data storage. Data objects (photos, newspaper articles), per se, are not stored in this geographical structure, but are rather represented by virtual 'push pin' markers that are stored in memory in accordance with their geographical associations. Such markers literally express some attributes of the corresponding data object, and provide pointers to external locations where additional data can be found. A number of other novel features and arrangements are also detailed.</p> |
