Search description for NOA

Searching with Scientific Image Search NOA is quick and easy to do. You can use different search options for your queries.

1. Default search with terms

Search terms are searched for in the fields caption, author, title and journal-title. All terms are automatically combined with OR.

2. Boolean operators

The default query operator is OR. The boolean operators AND and NOT can be used as an additional syntax:

  • term 1 AND term 2
  • term 1 OR term 2 ⇒ default search
  • term 1 NOT term 2
  • term 1 AND term 2 NOT term 3
  • term 1 AND (term 2 OR term 3)
  • term 1 NOT (term 2 OR term 3)
    e.g. smoke NOT (aspiration OR system)

AND is equivalent to +

NOT is equivalent to -

Combinations and sub-queries

You can use parenthesis to compose a query of smaller queries, referred to as sub-queries or nested queries.

  • term 1 + term 2 NOT (term 3 OR term 4)
    e.g. Stokes Efficiency Molecular NOT (Motor-Cargo OR Systems)
Fig 1: Stokes Efficiency Molecular NOT (Motor-Cargo OR Systems)

3. Wildcard queries

Additional you can use a query for a partial match expressed using wildcards. The asterisk matches any number of characters (perhaps none). No text analysis is performed on the search word containing the wildcard, not even lowercasing. Wildcard queries are one of the slowest types you can run.

  • term*
    e.g. "pathologic findings of toxic" hepatic* ⇒ right truncation only
  • term*prefix
  • term?prefix ⇒ Exactly one character is replaced.
Fig 2: "pathologic findings of toxic" hepatic*

4. Phrase queries

You can use phrase query, a contiguous series of words to be matched in that order.

  • "term 1 term 2 term 3"
    e.g. "Bahloul sections in Tunisia"

If you wanted to permit these words to be separated by no more than four words in between, then you could do this:

  • "term 1 term 2 term 3"~4
    e.g. "infiltrating acanthotic"~4
Fig 3: "infiltrating acanthotic"~4

5. Fuzzy queries

Fuzzy queries are useful when your search term needn't be an exact match, but the closer the better. The fewer the number of character insertions, deletions, or exchanges relative to the search term length, the better the score. Fuzzy queries have the same need to lowercase and to avoid stemming just as wildcard queries do.

  • term~
    e.g. stream~
Fig 4: stream~

6. Filter search results

You can filter results by year or by discipline.

Fig 5: Filter by discipline

7. Extended search with field qualifiers

You can search in the following fields.

  • journal-title
    e.g. journal-title:Ecological Processes
  • year
    e.g. year:2010
  • discipline
    e.g. discipline: Computer Science
  • title
    e.g. title:Access Network Selection Based on Fuzzy Logic and Genetic Algorithms
  • author
    e.g. author:Taekyun
  • doi
    e.g. doi:10.1186/1741-7007-7-6
  • caption
    e.g. caption:Membership functions of the input variables.
Fig 6: doi:10.1186/1741-7007-7-6
Merging field qualifiers
  • field1:term 1 AND field2:term 2
    e.g. year:2008 AND author:Hongyun
Fig 7: year:2008 AND author:Hongyun
Merging wildcards with field qualifiers
  • field1:term 1 field2:term 2*
    e.g. author:jiggins journal-title:Ecological*
Fig 8: author:jiggins journal-title:Ecological*

Reference

Apache Solr 3 Enterprise Search Server: Smiley, David and Pugh, David Eric, 2011