Dialog Techniques: Using
DialIndex viaDialogClassic or Telnet
Because of the number of
databases in Dialog, the most difficult problem is often which
database to choose. This can be done through a review of the
Dialog Database Catalog, looking at the Bluesheets for databases
in specific subject areas, getting advice from other expert
searchers, and more.
One technique for selecting
databases, though, is predicated on purely on statistics. That is,
often databases relevant to your search terms are the ones with
the most occurences of those terms. Dialog provides a way of
finding such databases.
- To find which databases have
the greatest occurrence of the search terms, you want to first
- This is a union collection of
the field indexes for most DIALOG databases.
It is important to
remember that not all databases share the same set of fields
and, therefore, indexes. This has impacts on how you search
- DialIndex is roughly
equivalent to the "Databases"
search in the DialogWeb
Steps in using
- Look at the database catalogs
or online information on databases (files) to determine which are
likely to be appropriate to your search.
- Write down the numbers of the
databases or OneSearch categories.
- To begin your search,
- Then select the files to be
- To view banner information on
the selected files, type:
- Type the search
NOTE: Only use the
for select. Do
not use "ss" for
- This brings up a series of
files, each prefixed by a number: Example:
files) to rank the list of
databases according to how many times the search terms occur in
- Select the databases that you
want to search by typing the Begin
Databases command "
", followed by the numbers preceeding the databases separated by
- Now you can commence your
searching of the databases.