OpenSigle HELP

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Handles

Communities

Collections

OpenSIGLE is your open access service to bibliographical references of European grey literature.

It si based on the SIGLE database which was produced by EAGLE (see also : About OpenSIGLE).

The OpenSIGLE content is organized around two Communities. They correspond to the countries which participated in SIGLE and to the main categories of SIGLE scientific divisions. Within each community there can be an unlimited number of collections. Each collection may contain an unlimited number of items.

Browse allows you to go through a list of items in some specified order:

Browse by Community/Collection takes you through the communities and collections within each community.

• COUNTRIES allows you to browse the database according to the input of the former EAGLE members.
• SUBJECT CATEGORIES corresponds to the general level of the principal SIGLE subject categories. (Please note : only the main classification code in each record was used to class an item in a collection. For a full search on a given classification code, use "Search by Subject" and the "Full Subject Category List" as a help.

Browse by Title allows you to move through an alphabetical list of all titles of items in OpenSIGLE.

Browse by Author allows you to move through an alphabetical list of all authors of items in OpenSIGLE.

Browse by Date allows you to move through a list of all items in OpenSIGLE in reverse chronological order.

About takes you to information about the OpenSIGLE project.

To search all of OpenSIGLE, use the yellow search box at the top of the navigation bar on the left (or the search box in the middle of the home page)

To limit your search to a specific community or collection, navigate to that community or collection and use the search bar on that page.

OpenSIGLE uses the Jakarta Lucene search engine. Here are some search hints:

What is searched in the general keyword search (yellow box)
The word(s) you enter in the search box will be searched against the title, author, subject abstract, series, sponsor and identifier fields of each item's record.

What is not searched - Stop Words
The search engine ignores certain words that occur frequently in English, but do not add value to the search. These are:

"a", "and" , "are" , "as" , "at" , "be" , "but" , "by" , "for" , "if" , "in" , "into",

"is" ,"it" ,"no" , "not" , "of" , "on" , "or" , "such", "the" , "to" , "was"

Truncation
Use an asterisk (*) after a word stem to get all hits having words starting with that root, for example:

   will retrieve selects, selector, selectman, selecting.

Stemming
The search engine automatically expands words with common endings to include plurals, past tenses ...etc.

Phrase Searching
To search using multiple words as a phrase, put quotation marks (") around the phrase.

Exact word match
Put a plus (+) sign before a word if it MUST appear in the search result. For instance, in the following search the word "training" is optional, but the word "dog" must be in the result.

Eliminate items with unwanted words
Put a minus (-) sign before a word if it should not appear in the search results. Alternatively, you can use NOT. This can limit your search to eliminate unwanted hits. For instance, in the search

  or  

you will get items containing the word "training", except those that also contain the word "cat".

Boolean searching

The following Boolean operators can be used to combine terms. Note that they must be CAPITALIZED !

AND - to limit searches to find items containing all words or phrases combined with this operator, e.g.

will retrieve all items that contain BOTH the words "cats" and "dogs".

OR - to enlarge searches to find items containing any of the words or phrases surrounding this operator

will retrieve all items that contain EITHER the words "cats" or "dogs".

NOT - to exclude items containing the word following this operator, e.g.

will retrieve all items that contain the word "training" EXCEPT those also containing the word "cat".

Parentheses can be used in the search query to group search terms into sets, and operators can then be applied to the whole set, e.g.

---

The advanced search page allows you to specify the fields you wish to search, and to combine these searches with the Boolean "and", "or" or "not".

You can restrict your search to a community by clicking on the arrow to the right of the top box. If you want your search to encompass all of OpenSIGLE, leave that box in the default position.

Then select the field to search in the left hand column and enter the word or phrase you are searching in the right hand column. You can select the Boolean operator to combine searches by clicking on the arrow to the right of the "AND" box.

Note: You must use the input boxes in order. If you leave the first one blank your search will not work.

You can search the original title and the English title in the Title index.

You can search the Subject index with either the classification SIGLE code (see Full Subject Category List) or with the wording of each code.

When your item becomes a part of the ERA repository it is assigned a persistent URL. This means that, unlike most URLs, this identifier will not have to be changed when the system migrates to new hardware, or when changes are made to the system. ERA is committed to maintaining the integrity of this identifier so that you can safely use it to refer to your item when citing it in publications or other communications. Our persistent urls are registered with the Handle System, a comprehensive system for assigning, managing, and resolving persistent identifiers, known as "handles," for digital objects and other resources on the Internet. The Handle System is administered by the Corporation for National Research Initiatives (CNRI), which undertakes, fosters, and promotes research in the public interest.

The OpenSIGLE content is organized two Communities : Countries and Subjet Category List.

Countries : EAGLE documentation centres (see About OpenSIGLE) which got the grey literature produced in their own countries.

Subject category List : Scientific domain, with a simplified SIGLE classification.

Each community has its own entry page displaying information.

Communities can maintain an unlimited number of collections in OpenSIGLE.

In the Community "Countries", each collection contains bibliographical references of items collected by the Information Centre of that country. (For instance, INIST is the centre for the Collection : France.) .

The Community "Subject Category List" is composed of fifteen Collections. Each Collection corresponds to a main scientific domain of SIGLE.

(see also the Full Subject Category List, and the Advanced Search)