منابع مشابه
The Landmark Spider: Weaving the Landmark Web
Landmarks play an important role when humans navigate through foreign environments (Lynch, 1960; May, Ross, Bayer, and Tarkiainen, 2003). For example, trying to find the way is much easier if the navigator can rely on a description of the route based on well-recognizable objects in the environment, instead of navigating solely on the basis of street names and metric directions (Tom, and Denis, ...
متن کاملVector-based and landmark-guided navigation in desert ants inhabiting landmark-free and landmark-rich environments.
Two species of desert ants - the North African Cataglyphis fortis and the central Australian Melophorus bagoti - differ markedly in the visual complexity of their natural habitats: featureless salt pans and cluttered, steppe-like terrain, respectively. Here we ask whether the two species differ in their navigational repertoires, in particular, whether in homing they place different emphasis on ...
متن کاملVienna landmark
and includes sites of high botanical interest. From 2000 to 2004, volunteers sent by the environmental charity Earthwatch helped to gather biodiversity data to back the scientific case for the sanctuary. Using this research, Earthwatch and NCRC demonstrated to the tribal chiefs that the creation of a sanctuary would provide a profitable alternative to unsustainable hunting and fishing. Investme...
متن کاملThe Landmark Spider: Representing Landmark Knowledge for Wayfinding Tasks
Mobile navigation systems are important assets for travelers visiting foreign environments, as they provide instructions on how to find the way to get to a chosen destination. Research has shown that finding ones way in a foreign environment is primarily based on cues in the environment. In this paper, we propose an algorithm that generates the clearest route in terms of spatial references and ...
متن کاملLandmark analysis at the 25-year landmark point.
This statistical primer presents the landmark analysis method, exploring its appropriate use and interpretation while recognizing its limitations. This observational method is used for comparing time-to-event outcome between groups determined during study follow-up. The goal of the landmark method is to estimate in an unbiased way the time-to-event probabilities in each group conditional on the...
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ژورنال
عنوان ژورنال: Nature
سال: 1975
ISSN: 0028-0836,1476-4687
DOI: 10.1038/254100a0