Indexing Tips
Here are a few final tips to help you produce and maintain the best index possible.
Maintain consistency ...
Indexing: Logically ordering information components by the values present in a key field. An identifier used to access stored information.
[edit] Indexing
All of these databases can take advantage of indexing to increase their speed. This technology has advanced tremendously since its early uses in the 1960s and 1970s.
Indexing the content of documents and files makes it quick and simple to find what you are looking for and leverages the value of your data for immediate use. You can use searches using multiple criteria to find the information you need.
Standard Indexing System (DOD aerial photography); Spatial Information Systems (Computer Aided Development Corp.)
SISMD
Solomon Islands Survey and Mapping Div.
A Spatial Indexing Mechanism
A set of operators and functions for performing area-of-interest queries and spatial join queries
Administrative utilities ...
Vector layer indexing,
Non spatial queries,
Simple spatial queries, based on distance, adjacency, intersection and inclusion.
Display and visualization ...
Web and Usenet News searcher, indexing over 100 million pages. OffersSimple, People, Business, Subject, and Advanced Searches.
Anarchie ...
Currently, your Web browser can ask a Web indexing service such as Lycos or Alta Vista to report Web sites that contain certain text strings or combinations of text strings.
See also item indexing, cross-tile indexing and spatial indexing. index coverage The polygon coverage that describes, and is used as a spatial index for, the tile structure of a layer. Each polygon in an index coverage corresponds to a tile.
A geodatabase is a database with extensions for storing, indexing, querying, and manipulating geographic information and spatial data.
Implementations and indexing
All of these kinds of database can take advantage of indexing to increase their speed. An index is a sorted list of the contents of some particular table column, with pointers to the row associated with the value.
With the advent of "relational databases," procedures were developed for robust internal referencing of data items, and more importantly, indexing among separate data sets.
Xinhang Shen, the NAC Meta Tag will be a boon to all search engines in reading, indexing and properly classifying websites. "We are very impressed with Metamend's Search Engine Optimization technology and submission service," stated Dr.
Regardless of the choice of convention for indexing the number of dimensions of a sphere, the term "sphere" refers to the surface only, so the usual sphere is a two-dimensional surface.
Note, that the row() and col() indexing starts with 1.
FLOATING POINT VALUES IN THE EXPRESSION
Floating point numbers are allowed in the expression. A floating point number is a number which contains a decimal point:
2.3 12.0 12. .81 ...
Technology transfer for indexing of aerial photographs on the Web (SIPA project)
Earth Sciences Sector/Policy, Planning and Information Services Branch/GID
Jean-Claude Henein ...
Special data structure used in a database to speed searching for records in tables or spatial features in geographic data sets.
ArcInfo supports both spatial and attribute indexes. See also item indexing, cross-tile indexing and spatial indexing.
TIGER consist of an arc/node type arrangement with separate files for points (zero cells), lines (one cells) and areas (two cells) that are linked together by cross-indexing.
Theoretical foundation of the quadtree (octree) indexing schemas;
Theoretical results in application the hypergraph theory for spatial objects;
Practical realization of the hybrid data model; ...
These steps include parsing the address, standardizing abbreviated values, assigning each address element to a category known as a match key, indexing the needed categories, searching the reference data, assigning a score to each potential candidate, ...
Keep in mind that this new search capability is not designed to handle indexing and searching of formal metadata documents and that spatial search against GIS resources is not supported at this time.
In the complete data workflow for the computation of a quality indicator map, the error propagation is carried out using the navigation data an their accuracy estimates. After the RT point cloud generation, we build up a k-d tree for spatial indexing.
This type of data model is outdated in the GIS arena. It lacks any method of checking data integrity, as well as being inefficient with respect to data storage, e.g. limited indexing capability for attributes or records, etc.
When the OED editors submitted lists of words to him, Minor could usually respond with definitions and examples of usage within a day. In short, several years of diligent reading and indexing paid off handsomely during the following decades.
 See also: Information, Software, Access, Database, GIS
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