Indexing and Retrieval

First of all the physical location of the various study materials may be different, as has been described in the section on archive facilities (see page 180), and this has to be reflected in the archive s indexing and retrieval system. It has therefore to be ascertained that on looking up the identification tag of a specific study one would be led to the location of all the various documents and materials related to this study, and which have been identified as materials to be archived in the study plan and the final report. 

Secondly, there are not only documents around that are directly related to any single study, like study plan, raw data and study report, but there are the general data and common information that might be pertinent to the assessment of the validity of the study, like environmental condition records, documents on calibration and maintenance of apparatus, temperature records 

There is one exception to this rule, and this is the archives of the Quality Assurance. Quality Assurance is also required not only to retain the documents pertaining to its own activities, but also to retain copies of approved study plans and of test facility SOPs in use. Although it would not be impossible, and certainly not forbidden, to archive these records and documents in the general archive facilities and under the care of the person responsible for the general archives. Quality Assurance may nevertheless choose to store these documents in its own, special facility, to which only Quality Assurance personnel could be given access. For this case, the GLP Principles do not spell out a special requirement for singling out a specific individual. 

The GLP Principles require therefore that movement of material in and out of the archives should be properly recorded , but just recording these movements may not be enough to secure the integrity of the returned study material. There are a number of points to be observed in this respect, which will, if properly implemented, lead to enhanced security of the study-related materials. 

The first of these measures is the already mentioned limited access to the archives. Only those individuals authorised by management should have access to all archive locations. This translates into the requirement that only a limited number of keys should be available for the archive facilities, all of which should be securely kept, allowing only the authorised persons to use them. It has to be recognised, however, that for cases of an emergency, like fire or a leaking water pipe, threatening the archive and its contents, a reserve key should be placed with the technical department in the test facility. 

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Indexing and retrieval software for searching MSDS files. 

Chung, P. W. H. Jefferson, M. 1997. Accident Databases - Indexing and Retrieval. EC/EPSC seminar on "Lessons Leamt from Accidents", Linz, 16-17 October. 

RemindertThe abstract allows the reader to determine the nature and scope of the paper and helps technical editors identify key features for indexing and retrieval. 

Increase the consistency of classification, indexing, and retrieval of documents ... 

To achieve this SRS utilizes the special purpose programming language, ICARUS (Interpreter of Commands and Recursive Syntax), which is used both for the meta definition of biological resources and the syntactic description of the data in the resources. The SRS core includes programs which use ICARUS meta definitions and syntactic descriptions to index and retrieve information from resources. In the case of applications, the meta definition includes information on how to run the programs as well as the meta description of the syntax and structure of the output. 

To index and retrieve data, SRS uses a token server. The meta definition is used to extract tokens, i.e. strings, from the database for indexing. When a query is performed, SRS searches for the query term against these indices and creates a set of entries which match that query. The fields of the entry which the user wants displayed are then extracted from the entry. This is done by using the connection made in the meta definition between a field and tokens received from the token server. 

Wilbur, W, and Yang, Y. (1996). An analysis of statistical term strength and its use in the indexing and retrieval of molecular biology texts. Comput. Biol. Med. 26, 209-222. 

Today, in June, 1987, we have finally achieved a working system for the indexing and retrieval of generic structures found in patents. It has not been an easy development, nor has it been without compromises. In this paper, our purpose is to report the progress... 

Smeaton AF. Techniques used and open challenges to the analysis, indexing and retrieval of digital videos. J Inf Syst. 2007 32(4) 545-59. 

In addition to LC Subject Headings, research in transportation engineering can be facilitated by the use of the Transportation Research Thesaurus (TRT) http //trt.trb.org/trt.asp (accessed August 12, 2010). The TRT is used for indexing and retrieval of transportation information. It covers all modes and functions. TRID, the primary bibliographic database for transportation, uses the TRT, which allows for much more focused subject searching than LC s Subject Headings. 

Information scientists index and retrieve documents using general terms from the thesaurus and chemical terms. General terms represent concepts, e.g., POLY-... 

Since a canonical WLN provides a unique representation of a chemical structure, WLN has been used for compound registration. Of the major indexing and retrieval tools the Index Chemicus Registry System (ICRS) and the printed Chemical Substructure Index of the Institute for Scientific Information (ISI) are based upon WLN. The CROSSBOW (Computerized Retrieval of Oiganic Structures Based on Wiswesser) system, as its name suggests, supports structure input via WLN and the interrogation of WLN files by string search of the notations. 

The different information types that are present in chemical databases require different techniques for the indexing and retrieval of the various information units. All these techniques for information retrieval demand a good knowledge of both the database indexing policy and the specific functions of the information retrieval system. Most databa.ses contain text information and it is therefore necessary for all users of databases to understand the principles of text indexing and retrieval. Numerical databases are based on either properties. 

Information retrieval systems traditionally rely on textual keywords to index and retrieve documents. Keyword-based retrieval may return inaccurate and incomplete results when different keywords are used to describe the same concept in the documents and in the queries. Furthermore, the relationship between those related keywords may be semantic rather than syntactic, and capturing it thus requires access to comprehensive human world knowledge. Previous approaches have attempted to tackle these difficulties by using manually built thesauri, by relying on term co-occurrence data, or by extracting latent word relationships and concepts from a corpus. ESA introduced in the previous section, which represents the meaning of texts in a very high-dimensional space of... 

Document File. Search parameters of internally generated research reports are Included in the Document File (16). Text (word) processing equipment, soon to be acquired, will permit inexpensive recording of selected text such as abstracts. A variety of options to INQUIRE Include techniques which can index and retrieve on the basis of such text. The multi-file option allows selected records to be combined with data from other INQUIRE files. 

For chemical documentation purposes, each molecular graph should have a unique name or code which should allow indexing and retrieval. This necessity has been partly fulfilled by the traditional chemical nomenclature and by the development of linear notation systems. Both approaches are in use and are able to discriminate among isomeric structures, but rely heavily on conventions. Chemical names may be indexed alphabetically within a set of isomeric systems, which in turn may be ordered according to the molecular formula this fact makes chemistry the best-documented natural science. Linear notation... 

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