Assignment: Inverted Index October 19‚ 2012 1 Introduction Today‚ top search engines like Google and Yahoo use a data structure called Inverted Index for their matching of queries to the documents and give users the relevant documents according to their rank. Inverted Index is basically a mapping from a word to its position of occurence in the document. Since a word may appear more than once in the document‚ storing all the positions and the frequency of a word in the document gives an idea
Premium Information retrieval
AND FUNCTION OF the world’s grasslands makes them one of the most vulnerable to global climate change of any terrestrial ecosystem (Sala et al.‚ 2000; IPCC‚ 2001a). The low-stature of vegetation confers high light availability‚ leaving many grasslands naturally vulnerable to invasive species (Wagner‚ 1989)‚ especially following disturbance (Hobbs and Huenneke‚ 1992). A critical role for fire in maintaining plant community structure in many grassland types leaves them vulnerable to vegetation change
Premium Invasive species Climate change Ecosystem
Only God can Judge me ! Do you judge people by the clothes they wear? Did you ever tried judging people by their look? Did anyone judge you? How would you feel getting judge? To me I never did judge people by their cover‚ I rather meet them in their inside than their outside because their inside is what tells you who they really are whether their nice‚ sweet‚ mean or shy. But people this day tend to judge a book by its cover. They judge the way they look not knowing what’s inside of them
Premium Arithmetic mean English-language films Roald Dahl
“The Lowest Animal” by Mark Twain is written as a satire to talk about his opinion on human nature. The main idea that he wants to get across is that animals are better than humans. In the story “A Time of Gifts” by Stephen Gould‚ it talks about the contrast between positive and negative things that happen in life. The outlook on this story is that for every act of evil‚ you will be granted with 10‚000 acts of kindness. Stephen Gould’s opinion is more relatable for me compared to Mark Twain’s opinion
Premium Human Mammal Science
An ecosystem is a community of living organisms (plants‚ animals and microbes) in conjunction with the nonliving components of their environment (things like air‚ water and mineral soil)‚ interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows. As ecosystems are defined by the network of interactions among organisms‚ and between organisms and their environment‚ they can come in any size but usually encompass specific‚ limited
Premium Ecosystem Ecology Food chain
elements necessary for the growth and reproduction of all organisms have a limited quantity on earth at any one time‚ other than the occasional meteor that brings with it new matter. It is therefore important that the recycling of these chemical elements is efficient. Autotrophs are the basis of almost all ecosystems. The rate that autotrophs produce and transfer energy is vital to the capacity of organisms that can inhabit these ecosystems. To understand the rates in which certain species’ leaves
Premium Leaf Species Poaceae
&ATOMIC NUMBER AND MASS NUMBERS After reading this section you will be able to do the following: * Define and determine the atomic number of an atom. * Define and determine the mass number of an atom. What is an atom’s atomic number? The number of protons in the nucleus of an atom determines an element’s atomic number. In other words‚ each element has a unique number that identifies how many protons are in one atom of that element. For example‚ all hydrogen atoms‚ and only hydrogen atoms
Premium Isotope Neutron Radioactive decay
Cycles in ecosystem Water is found ● lakes‚ streams‚ and oceans ● in the atmosphere as water vapor ● in the soil or porous rock deeper under the surface ● movement of water is between is between the atmosphere‚ ground‚ and bodies of water is called the water cycle Water Cycle ● Precipitation cycles water from the atmosphere back to Earth: rain‚ snow‚ fog‚ sleet‚ ect. ● Evaporation cycles water from earth back to the atmosphere ● Transpiration is the
Premium Global warming Climate
The Arctic Tundra ecosystem Arctic tundra is located in the northern hemisphere‚ encircling the North Pole and extending south to the coniferous forests of the taiga. The arctic is known for its cold‚ desert-like conditions. All of the plants are adapted to sweeping winds and disturbances of the soil. Plants are short and group together to resist the cold temperatures and are protected by the snow during the winter. They can carry out photosynthesis at low temperatures and low light intensities
Premium Polar bear Plant Animal
Number the Stars Book Critique Vandana Number the Stars is a very touching‚ interesting‚ and realistic book. In other words‚ I liked it very‚ very‚ very much. It taught me a lot about the German occupation during World War II‚ especially in Denmark. I had learned before in school about how the Nazis mistreated Jews‚ tortured them‚ and even killed them in concentration camps. By reading Number the Stars‚ I learned even more about normal Danish citizens and how their daily lives were
Premium