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Automated Efficiency Model
An automated efficiency model (AEM) is a mathematical model that estimates a real estate property’s efficiency by using details specific to the property which are available publicly and/or housing characteristics which are aggregated over a given area such as a zip code. AEMs have some similarities to an automated valuation model (AVM) in terms of concept, advantages and disadvantages. AEMs calculate specific efficiencies such as location, water, energy or solar efficiency. The Council of Multiple Listing Services defines an AEM as, “any algorithm or scoring model that estimates the fficiencyof a home without an on-site inspection. They are similar to Automated Valuation Models (AVMs), but are more reliant on public data such as square footage...and estimated energy usage.” Most AEMs calculate a property’s selected efficiency by analyzing available public information and may also apply proprietary data or formulas, and allow for a user such as a home owner to make addition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical Model
A mathematical model is a description of a system using mathematical concepts and language. The process of developing a mathematical model is termed mathematical modeling. Mathematical models are used in the natural sciences (such as physics, biology, earth science, chemistry) and engineering disciplines (such as computer science, electrical engineering), as well as in non-physical systems such as the social sciences (such as economics, psychology, sociology, political science). The use of mathematical models to solve problems in business or military operations is a large part of the field of operations research. Mathematical models are also used in music, linguistics, and philosophy (for example, intensively in analytic philosophy). A model may help to explain a system and to study the effects of different components, and to make predictions about behavior. Elements of a mathematical model Mathematical models can take many forms, including dynamical systems, statisti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automated Valuation Model
An Automated Valuation Model (AVM) is a system for the valuation of real estate that provides a value of a specified property at a specified date, using mathematical modelling techniques in an automated manner. AVMs are Statistical Valuation Methods and divide into Comparables Based AVMs and Hedonic Models. Other Statistical Valuation Methods are House Price Indices and Single Parameter Valuations. Comparables Based AVM vs. Hedonic Models Comparables Based AVMs select comparables for each individual valuation based on the characteristics of the property to be valued. They therefore operate similarly to how an appraiser would work when valuing properties through the sales comparison approach. Hedonic Models on the other hand try to isolate the impact of individual property characteristics in the form of pre-calculated parameters. When doing a valuation using hedonic models no actual comparison or automated processes take place, but the value is instead calculated by filling propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Online Real Estate Databases
This is an alphabetical list of online real estate databases. Online real estate databases *Assist-2-Sell *Cyberhomes *Homes.com *Housing.com *Lamudi *LoopNet *MyNewPlace *Naked Apartments *NeighborhoodScout *Nestoria *NuroaRealEstateDatabase.net *Realtor.com *RealtyTrac *Redfin *Revaluate *Showing Suite *StreetEasy *Trulia *UrbanIndo *Zameen.com *Zillow *ZipRealty *Zoopla {{portalbar, Lists Online real estate databases, * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Information Administration
The U.S. Energy Information Administration (EIA) is a principal agency of the U.S. Federal Statistical System responsible for collecting, analyzing, and disseminating energy information to promote sound policymaking, efficient markets, and public understanding of energy and its interaction with the economy and the environment. EIA programs cover data on coal, petroleum, natural gas, electric, renewable and nuclear energy. EIA is part of the U.S. Department of Energy. Background The Department of Energy Organization Act of 1977 established EIA as the primary federal government authority on energy statistics and analysis, building upon systems and organizations first established in 1974 following the oil market disruption of 1973. EIA conducts a comprehensive data collection program that covers the full spectrum of energy sources, end uses, and energy flows; generates short- and long-term domestic and international energy projections; and performs informative energy analyses. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photovoltaics
Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. The photovoltaic effect is commercially used for electricity generation and as photosensors. A photovoltaic system employs solar modules, each comprising a number of solar cells, which generate electrical power. PV installations may be ground-mounted, rooftop-mounted, wall-mounted or floating. The mount may be fixed or use a solar tracker to follow the sun across the sky. Photovoltaic technology helps to mitigate climate change because it emits much less carbon dioxide than fossil fuels. Solar PV has specific advantages as an energy source: once installed, its operation generates no pollution and no greenhouse gas emissions, it shows scalability in respect of power needs and silicon has large availability in the Earth's crust, although other materials required in PV system m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Location Efficient Mortgage
Location Efficient Mortgage (or LEM) is a mortgage available to people who buy a home in locations where they don't need to rely on automobiles as much or at all for transportation. Location efficient mortgages allow people to buy more expensive homes than they normally would be able by factoring in the money they'll save on transportation costs. As of April 2006, LEM's are available in Seattle, Washington, Chicago, Illinois, Los Angeles, California and San Francisco, California. The concept was developed by the Center for Neighborhood Technology and the Natural Resources Defense Council and is backed by Fannie Mae. How it works With traditional mortgages, there is a limit on how much money is available based on the purchaser's income. The cost of housing must not exceed 35% of the household’s income (Housing to Income Ratio), and the household's total debt cost must not exceed 45% of the household’s income (Total Debt to Income Ratio). This is to ensure that after the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Audit
An energy audit is an inspection survey and an analysis of energy flows for energy conservation in a building. It may include a process or system to reduce the amount of energy input into the system without negatively affecting the output. In commercial and industrial real estate, an energy audit is the first step in identifying opportunities to reduce energy expense and carbon footprint. Principle When the object of study is an occupied building then reducing energy consumption while maintaining or improving human comfort, health and safety are of primary concern. Beyond simply identifying the sources of energy use, an energy audit seeks to prioritize the energy uses according to the greatest to least cost-effective opportunities for energy savings. Home energy audit A ''home energy audit'' is a service where the energy efficiency of a house is evaluated by a person using professional equipment (such as blower doors and infrared cameras), with the aim to suggest the best ways to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walk Score
Walk Score, a subsidiary of Redfin, provides walkability analysis and apartment search tools. Its flagship product is a large-scale, public access walkability index that assigns a numerical walkability score to any address in the United States, United Kingdom, Canada, and Australia. Walk Score is a type of automated efficiency model focused on location efficiency. A Walk Score, as well as a Bike Score and Transit Score, may be assigned to a particular address or an entire region, and the company maintains a ranking of the most walkable cities in the United States. Products for computer programmers include Travel Time API. Higher walk scores have been correlated with higher property values and lower mortgage default risk. The company is headquartered in Seattle, Washington. History Walk Score was founded in July 2007 by Mike Mathieu, aided by Matt Lerner, Jesse Kocher, and Josh Herst, formerly of Madrona Venture Group. In August 2010, the company launched Transit Score to help u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Property
property is property that is movable. In common law systems, personal property may also be called chattels or personalty. In civil law systems, personal property is often called movable property or movables—any property that can be moved from one location to another. Personal property can be understood in comparison to real estate, immovable property or real property (such as land and buildings). Movable property on land (larger livestock, for example) was not automatically sold with the land, it was "personal" to the owner and moved with the owner. The word ''cattle'' is the Old Norman variant of Old French ''chatel'', chattel (derived from Latin ''capitalis'', “of the head”), which was once synonymous with general movable personal property. Classifications Personal property may be classified in a variety of ways. Intangible Intangible personal property or "intangibles" refers to personal property that cannot actually be moved, touched or felt, but instead repre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Real Property
In English common law, real property, real estate, immovable property or, solely in the US and Canada, realty, is land which is the property of some person and all structures (also called improvements or fixtures) integrated with or affixed to the land, including crops, buildings, machinery, wells, dams, ponds, mines, canals, and roads, among other things. The term is historic, arising from the now-discontinued form of action, which distinguished between real property disputes and personal property disputes. Personal property, or personalty, was, and continues to be, all property that is not real property. In countries with personal ownership of real property, civil law protects the status of real property in real-estate markets, where estate agents work in the market of buying and selling real estate. Scottish civil law calls real property "heritable property", and in French-based law, it is called ''immobilier'' ("immovable property"). Historical background The word " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
