Text searching facilities

Most in-house conpany information systems will provide some conputerised aids to help chanists with these types of problem, mainly falling into one of two classes. Firstly, text searching facilities on the general literature, patent... 

An important question in connection with accident investigations is whether the same type of accident has occurred before. This question is easily answered if a computerised accident database is available. The most efficient means of searching for similar occurrences is to utilise the free-text search facilities of the information retrieval programme. There are computerised tools for pattern recognition that may help identify accident repeaters. It is important to note that different persons may use different words to describe the same work operations, equipment, etc. There are also spelling errors and misconceptions that hinder efficient free-text search. The analyst must be well acquainted with the workplace in question and the different dialects in use. 

Web addresses of individual suppliers are given in the text, but a general search facility of over 1000 worldwide manufacturers is available at http //www.product-search.co.uk... 

A number of files under the generic tide CAS ONLINE are available on-line on STN International. The system software, MESSENGER, includes chemical substructure, text, and numeric data searching facilities. Chemical structures and Registry Numbers are contained in the CA Registry file. The four ways to search the structures are EXA, FAM, SSS, and CSS. 

XQuery (XML Query) Flexible query facilities used to extract data from real and virtual documents by way of XML notation in a file system or on the World Wide Web. XQuery consequently provides interaction and data exchange between the web world and the database world and ultimately enables collections of XML files to be accessed like databases. The XML Query project of the W3C Consortium includes not only the standard for querying XML documents but also the next-generation standards for doing XML selection (XPath2), for XML serialization, for full-text search, for a possible functional XML data model, and for a standard set of functions and operators for manipulating web data. 

The success of these techniques is testified by the growing success of computerised text search systems. The flexibility offered by computer searching, in particular such facilities as term truncation, syntactical linking, and nested Boolean logical linking, and its ability to cope with large volumes of data indicate it is likely to find increasing application in the future. 

On the FlyBase home page, the Quick Search facility uses a scrolling menu to define the data class(es) to be searched. Symbol field can be used for valid symbols or synonyms, and All text can be used to enter free text such as keywords and synonyms. 

U.S. Patent and Trademark Office Web Patent Databases. The Patent and Trademark Office (PTO) [72] offers free World Wide Web access, http // www.uspto.gov/main/patents.htm, to a bibliographic patent database that uses the most current patent classification system, this may not match the classification data that appears on the printed patent, and to a full-text patent database that uses the classification data that appear on the printed patent, this may not match the current classification data. The databases start with January 1, 1976, patents. The full text of a patent includes all bibliographical data (e.g., inventor s name, the patent s title, the assignee s name, etc.) and the abstract, full description of the invention, and the claims. All the words in the text of the patent are searchable. If the patent number is known, the patent, regardless of year, can be ordered from the PTO. Automated searching of 1971 to date patents is available at some of the Patent and Trademark Depository Libraries. Prior to 1971 searching can be done at the PTO facilities or at the Patent and Trademark Depository Libraries. Commercial patent search services are also available. 

This TEXT is used in the various explanation and tracing facilities. Whenever the inference engine reaches one of these FACTS it either continues its search, if possible, or proceeds another level deeper in the reverse search and tries to prove that FACT. 

Complete operational details of all CSD System programs are given in the relevant documentation [15]. In this section we give a brief overview of the search and retrieval facilities for the ID and 2D information items described in Section3.3.3. These details apply to all Versions of the CSD software but, where examples are necessary, we use the alphanumeric query coding of Version 3 in the text below. 

ConQuest provides search, retrieval, and display facilities for the CSDJ Individual queries can be set up to interrogate the bibliographic, chemical text, and crystal data fields listed in Table 2, and, in particular, the program provides extensive graphical facilities for the definition of 2D and 3D substructure searches. The 2D searches interrogate the chemical connection tables alone, while... 

The WebCSD application makes the CSD accessible via the Internet and local Intranet facilities using standard browsers—no local software installations are required. In addition to full text and numeric searching, including... 

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