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Foundations and Trends® in Information Retrieval, 2010
This is a survey of the science and practice of web crawling. While at first glance web crawling may appear to be merely an application of breadth-first-search, the truth is that there are many challenges ranging from systems concerns such as managing very large data structures to theoretical questions such as how often to revisit evolving content ...
Marc Najork, Christopher Olston
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This is a survey of the science and practice of web crawling. While at first glance web crawling may appear to be merely an application of breadth-first-search, the truth is that there are many challenges ranging from systems concerns such as managing very large data structures to theoretical questions such as how often to revisit evolving content ...
Marc Najork, Christopher Olston
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Journal of International Economics, 1976
Abstract This paper shows that optimal exchange rate policy can be defined in terms of either a long-run secular policy or a short-run stabilization policy. The rate of crawl which maximizes real per capita consumption is shown to often differ from the exchange rate movements produced under fixed or floating exchange rates.
Donald J. Mathieson, Donald J. Mathieson
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Abstract This paper shows that optimal exchange rate policy can be defined in terms of either a long-run secular policy or a short-run stabilization policy. The rate of crawl which maximizes real per capita consumption is shown to often differ from the exchange rate movements produced under fixed or floating exchange rates.
Donald J. Mathieson, Donald J. Mathieson
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Journal of International Economics, 1979
Abstract This paper shows that the optimal exchange rate policies proposed by Mathieson will exist only for ‘perverse’ money demand function. In general these policies will minimise rather than maximise steady-state consumption.
Harry R. Clarke, Geoffrey Kingston
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Abstract This paper shows that the optimal exchange rate policies proposed by Mathieson will exist only for ‘perverse’ money demand function. In general these policies will minimise rather than maximise steady-state consumption.
Harry R. Clarke, Geoffrey Kingston
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Review of Bionic Crawling Micro-Robots
Journal of Intelligent and Robotic Systems, 2022Chao Wang +7 more
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Effect of optic flows on newborn crawling
Developmental Psychobiology, 2018This study examined the crawling characteristics of newborns placed prone on a water-filled, transparent pediatric mattress and whether exposure to terrestrial optic flows that specify forward and backward displacement would influence leg and arm ...
Vincent Forma +3 more
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Medical Engineering & Physics, 2005
Crawling of keratocytes derived from aquatic vertebrates represents a very useful model system for the investigation of cell locomotion because of its ease of handling and the clear structural separation of a thin cytoplasmic layer, the lamella, from the cell body containing the nucleus and other organelles.
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Crawling of keratocytes derived from aquatic vertebrates represents a very useful model system for the investigation of cell locomotion because of its ease of handling and the clear structural separation of a thin cytoplasmic layer, the lamella, from the cell body containing the nucleus and other organelles.
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Scientific American, 2009
The article describes the problem of invasive earthworms in hardwood forests near the Great Lakes of the U.S. The extinction of the earthworms native to the region in the most recent Ice Age is noted, mentioning that earthworms extant in the area as of 2009 have been introduced through other means.
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The article describes the problem of invasive earthworms in hardwood forests near the Great Lakes of the U.S. The extinction of the earthworms native to the region in the most recent Ice Age is noted, mentioning that earthworms extant in the area as of 2009 have been introduced through other means.
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2004
The large size and the dynamic nature of the Web make it necessary to continually maintain Web based information retrieval systems. Crawlers facilitate this process by following hyperlinks in Web pages to automatically download new and updated Web pages.
Padmini Srinivasan +2 more
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The large size and the dynamic nature of the Web make it necessary to continually maintain Web based information retrieval systems. Crawlers facilitate this process by following hyperlinks in Web pages to automatically download new and updated Web pages.
Padmini Srinivasan +2 more
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The Machinery of Cell Crawling
Scientific American, 1994When a cell crawls, part of its fluid cytoplasm briefly turns rigid. This transformation depends on the orderly assembly and disassembly of a protein scaffold.
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Speculation and the Crawling Peg
Economica, 1977The objective of this paper is to determine how speculative capital flows, as described by the modern stock equilibrium theory, affect the stability of the path of the exchange rate under crawling peg systems. Because of the recent emphasis on objective indicators in discussions of reform of the international adjustment mechanism, the paper ...
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