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Basic features of the system

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Below we present basic features of the OMEGA-PSIR system.

Search features

Global Search

Global search is usually the start page of the University Knoledge Base (UKB). It is used to comprehensively search over all object types at the same time (Everywhere option) or direct the query to a selected object type from the drop-down menu.

This type of querying is useful if with one search we want to obtain a result covering all types of objects in the Knowledge Base for a given question. As an example, below a global result for the query bioengineering is shown:

As one can see, particular tabs show answers for the query in particular object domains, giving a general view of the contents of the Knowledge Base for the specified query.

Type-oriented simple search

For every record type the system provides a simple search form, sometimes also it provides advanced search form (see Advanced Search ). In the form for simplified search the user has one field at his/her disposal in which he/she can enter a query formula without the possibility of indicating the attribute, which should be relevant to the query. This means that the search for a given query is performed on all the fields of the objects, as well as in the source documents attached to the objects. The syntax for the query to be specified in the query field is described in the Search Modes section.

The simple seach screen is shown on Fig. 1 below.

You can also see on the top of the result area the function bar:

where the following useful functions are located:

  • the toggle to open/close the filters area (1)

  • the switch to select all retrieved items by marking the check boxes on and off (2)

  • the combo-box to select a format to exoprt the selected items (3)

The new version of the system provides the filters with the facets, making it possible to drill-down with the query.

In the Repository module (the Publications tab), the logged-in user has the option of contextual search. This functionality performs a seach in such a way that the results are sorted by relevance relative to the user profile.

The user who is logged in, can set the context search to:

  • medium – matching results based on a tag cloud

  • high – matching results based on the tag cloud and the author's discipline

Advanced search

It allows one to adjust query details, and build an advanced query with logical operators, so that to obtain the most relevant results. In the case whe the MeSH based search is switched on, additionally it is possible to select pairs (descriptor + qualifier), so that a more accurate results can be obtained.

Result page

As a result of the search, the user receives a window with the results and a set of specified functions.

The screen with the results of searching for publications in the Repository module is discussed below.

The basic functions available on the results screen are:

  1. Result filtering function (facets)

  2. Record selection function

  3. Window for choosing how to sort the results

  4. A window for selecting a report that can be generated for selected records. More in Report generation

image-20240128-195959.png

Each item in the results list also has a variety of functions visible when you hover over it with the cursor. The selection of these functions depends on whether or not the user is logged in and what permissions he or she has.

image-20240128-200229.png

When these are the results of a repository search, the public view includes:

  • The checkbox for selecting the item

  • the function to go to the full description of the object (in bold, usually the title)

  • in case of the objects having DOI, the link to the object

  • in case the object is deposited - the icon to download the object

  • the searched terms are highlighted, if presenton the snipet,

  • otherwise, in case the terms are inside the record or in the document deposited, the question mark, when hovered over with the mouse, shows the context for the query

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