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Tip: Understanding Rank

PEP-Web Tip of the Day

When you do a search, you can sort the results bibliographically alphabetical or by “rank”. What is Rank?

Rank refers to the search engine’s “best guess” as to the relevance of the result to the search you specified. The exact method of ranking used varies a bit depending on the search. In its most basic level, when you specify a single search term, rank looks at the density of the matches for the word in the document, and how close to the beginning of the document they appear as a measure of importance to the paper’s topic. The documents with the most matches and where the term is deemed to have the most importance, have the highest “relevance” and are ranked first (presented first).

When you specify more than one term to appear anywhere in the article, the method is similar, but the search engine looks at how many of those terms appear, and how close together they appear, how close to the beginning of the document, and can even take into account the relative rarity of the search terms and their density in the retrieved file, where infrequent terms count more heavily than common terms.

To see a simple example of this, search for the words (not the phrase, so no quotes):

unconscious communications

Look at the density of matches in each document on the first page of the hits. Then go to the last page of matched documents, and observe the density of matches within the documents.

A more complex search illustrates this nicely with a single page and only 15 matches:

counter*tr* w/25 “liv* out” w/25 enact*

There are a lot of word forms and variants of the words (due to the * wildcards) above that can match, but the proximity (w/25) clause limits the potential for matching. What’s interesting here though is how easily you can see the match density decrease as you view down the short list.

The end result of selecting order by rank is that the search engine’s best “guess” as to which articles are more relevant appear higher on the list than less relevant articles.

For the complete list of tips, see PEP-Web Tips on the PEP-Web support page.

Freud, S. (1909). Analysis of a Phobia in a Five-Year-Old Boy. The Standard Edition of the Complete Psychological Works of Sigmund Freud, Volume X (1909): Two Case Histories (‘Little Hans’ and the ‘Rat Man’), 1-150.

Freud, S. (1909). [SEJ1a1]Analysis of a Phobia in a Five-Year-Old Boy. The Standard Edition of the Complete Psychological Works of Sigmund Freud, Volume X (1909): Two Case Histories (‘Little Hans’ and the ‘Rat Man’), 1-150

[SEJ1a1]Analysis of a Phobia in a Five-Year-Old Boy Book Information Previous Up Next Language Translation

Sigmund Freud

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[SEJ1a2]Editor's Note to "Analysis of a Phobia in a Five-Year-Old Boy"

[SEJ1a3]Analyse Der Phobie Eines Fünfjährigen Knaben

[SEJ1a4](a) German Editions:

[SEJ1a5]1909 Jb. psychoanal. psychopath. Forsch., 1 (1), 1-109.

[SEJ1a6]1913 S.K.S.N., III, 1-122 (1921, 2nd. ed.).

[SEJ1a7]1924 G.S., 8, 129-263.

[SEJ1a8]1932 Vier Krankengeschichten, 142-281.

[SEJ1a9]1941 G.W., 7, 243-377.

[SEJ1a10]1922 ‘Nachschrift zur Analyse des kleinen Hans’, Int z. Psychoanal., 8 (3), 321.

[SEJ1a11]1924 G.S., 8, 264-5.

[SEJ1a12]1932 Vier Krankengeschichten, 282-3.

[SEJ1a13]1940 G.W., 13, 431-2.

[SEJ1a14](b) English Translation:

[SEJ1a15]‘Analysis of a Phobia in a Five-Year-Old Boy’ 1925 C.P., 3, 149-287—‘Postscript (1922)’, Standard Ed., 288-9. (Tr. Alix and James Strachey.)

[SEJ1a16]The present translation is a reprint, with some alterations and additional notes, of the English version first published in 1925.

[SEJ1a17]Some records of the earlier part of little Hans's life had already been published by Freud two years before, in his paper on ‘The Sexual Enlightenment of Children’ (1907c). In the earlier editions of that paper, however, the boy was

[SEJ1a18]referred to as ‘little Herbert’; but the name was changed to ‘little Hans’ after the publication of the present work. This case history is also briefly mentioned in another of Freud's previous papers, ‘On the Sexual Theories of Children’ (1908c), published a short time before this one.

[This is a summary or excerpt from the full text of the book or article. The full text of the document is available to subscribers.]

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