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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.

Rascovsky, L. (1944). Staub, Hugo: A run away from home. (Una fuga del hogar.) “The Psychoanalytic Quarterly”, vol. 12, nọ 1, pág. 1, 1943.. Rev. psicoanál., 1(3):474.

(1944). Revista de Psicoanálisis, 1(3):474

Staub, Hugo: A run away from home. (Una fuga del hogar.) “The Psychoanalytic Quarterly”, vol. 12, n 1, pág. 1, 1943.

Review by:
Luis Rascovsky

Se refiere el caso a un joven de 17 años que durante sus fugas realizaba actos delictuosos. El análisis procuró una completa corrección de tal conducta poniendo de manifiesto los móviles inconscientes de la misma. El autor hace interesantes consideraciones sobre la falta de comprensión del problema en la abundante literatura al respecto, que no es más que una acumulación de datos estadísticos y de observaciones psicológicas superficiales. La delincuenr cia infantil transitoria que generalmente acompaña a los fugadores constituye uno de los enormes reservónos de la criminalidad.

Llama la atención sobre los actuales métodos que la sociedad utiliza en el tratamiento de tales casos, que reflejan los prejuicios y la total ceguera psicológica común en el trato de todos los criminales.

Respecto de la técnica analítica a utilizar en estos casos de jóvenes, insiste en una modificación de la misma tendiente a obtener en un período que denomina preparatorio, en base a una actitud activa del analista, una fuerte transferencia, un drenaje de la ansiedad y una protección del yo que le permitan dinamizar sus controladas y reprimidas fuerzas. Una vez obtenido ello la usual técnica analítica es entonces empleada.

Luis Rascovsky.

[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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