Searching

Using the simple search

Use the simple search form to find documents containing ALL your words anywhere within the document.

1_simple_study_alzheimer_disease

Example: study alzheimer disease finds documents containing the words study AND alzheimer AND disease in any order (not necessarily all within the document title).

To find phrases containing more than one word use quotes.


2_simple_disaster_medicine

Example: "disaster medicine" finds documents containing the phrase disaster medicine but not documents that just contain the words disaster and medicine.

Use OR to find documents containing ANY, but not necesssarily all of the words.


3_simple_dementia_OR_alzheimer_disease

Example: dementia OR alzheimer disease finds documents containing the words dementia or the words alzheimer AND disease (not necessarily all within the document title).

Using the advanced search

The advanced search offers four search fields that allow you to further restrict the type of documents you want to find. You can use the same search options that are available for the simple search.

Use only one field to find documents that contain the search words within that specific field.


4_advanced_title_treatment_alzheimer_diseasein

Example: treatment alzheimer disease in the title field finds documents containing the words treatment AND alzheimer AND disease within the title.

Using more than one field finds only those documents that match ALL the conditons.


5_advanced_title_year

Example: treatment alzheimer disease in the title field and >2007 in the year field finds documents containing the words treatment AND alzheimer AND disease within the title which were published after 2007.

When searching for authors by full name, use quotes around the name.


6a_advanced_year

When restricting the search by year, range conditions can be given using <A or >B or A-B.


6b_advanced_year

Examples: <2000 restricts the search to documents published before 2000, 2005-2007 finds documents from the years 2005, 2006 or 2007.

More options for expert searchers

Experienced searchers can use either the simple or advanced search form to specify more complicated conditions.

Excluding words from the search

Using the NOT operator, words can be excluded from the search. (Not all sources understand this operator.)


7_expert_NOT_co-authored

Example: "Catherine Plaisant" AND NOT "Ben Shneiderman" within the author field finds documents that were written by Catherine Plaisant, but NOT co-authored by Ben Shneiderman.

Field specifications with simple search field

Within the simple search field you can restrict the search to a specific field by adding a field name operator (Title=, Author=, Year=, or Text=).


8_expert_simple_author

Example: Author="Ben Shneiderman" works as if "Ben Shneiderman" has been written within the author field of the advanced search form.

Multiple field specifications can be combined within a single search using AND, OR, (, and ). This allows for searches that are not possible to specify within the advanced search form.


9_expert_simple_complex

Example: Author="Ben Shneiderman" OR (Author="Catherine Plaisant" AND Year>=2001 AND Year <=2005) finds documents that were either written by Ben Shneiderman or written by Catherine Plaisant between 2001 and 2005.

Multiple conditions for a single field can be combined using { and }.


10_expert_simple_complex

Example: Author={"Ben Shneiderman" OR "Catherine Plaisant"} AND Year=2005 finds documents that were either written by Ben Shneiderman or Catherine Plaisant in the year 2005.

Proximity search

To specify two words within a field that should appear near each other the proximity operator NEAR/x can be used. (Not all sources understand this operator.)


11_expert_advanced_near

Examples: information NEAR/4 retrieval within the title field finds documents containing the words information AND retrieval with at most 4 non-stopwords in between.

Using wildcards

To cover spelling variations and multiple forms of words (e.g. singular/plural variation you can use the wildcard operators $ to cover a single letter or # to cover zero or multiple letters. (Not all sources understand these operators.)

Wild cards can not be combined with the proximity operator within a single condition (e.g. it is not possible to specify eval# NEAR/2 user).


12_expert_wildcards

Examples: hypothes$s visual# finds documents containing either hypothesis or hypotheses and any word beginning with visual including visualize or visualization.