Generic search engine

Formally, a database consists of three components, i.e. data in a searchable form, generic search engine and query language appropriate to the domain of data. The entire database is composed of entries that are discrete coherent parcels of information indexed by a set of pointers for efficient search. The search engine is responsible for ... 

As mentioned above, no generic search engine is provided with the PDB, although numerous vendors and research groups have attempted to fill this gap with systems of astonishing variety. 

The iterative search algorithm is being completely rewritten for the search engine implementation to support the use of generic search queries against a file of Markush structure representations. That is, both the queries and the structures on a file may have nodes represented as variable substructures or certain generic nodes (e.g., heterocycle). 

The proliferation of information on the Internet can be overwhelming. It is important to know how to move around the Internet using search engines, generic sites, and links. The Internet can provide much useful information in a relatively short period of time. 

Chapter 4—Data Bases, Sources, and Studies Summarizes and characterizes several generic data resources available to risk analysts and process engineers in the CPI. It includes a discussion of the resource search and selection process and the presentation format for the information on resources. 

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