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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.

Gonz├ílez Ch., J.L. (1955). PSICOSIS PARANOIDE TRANSFERENCIAL. Rev. psicoanál., 12(2):234-244.

(1955). Revista de Psicoanálisis, 12(2):234-244

PSICOSIS PARANOIDE TRANSFERENCIAL

José Luis González Ch.

Objeto de la comunicación

Desde fines de 1949, tengo en tratamiento a una joven de 30 años. Solicitó su análisis por tener depresiones, ideas de suicidio, conflictos familiares e insatisfacción general. Es una personalidad histérica, ya que sus problemas esenciales se planteaban en el plano edípico del desarrollo de la libido, y las posiciones fálicas alcanzadas le permitían satisfacciones sexuales, fallando en cambio el afianzamiento de su relación objetal por el conflicto inconsciente infantil con los padres.

Tenía conscientemente un intenso odio hacia el padre, que ocasionaba choques frecuentes entre ellos.

Desde las primeras sesiones, pude observar que el rencor hacia el padre constituía un núcleo paranoide importantísimo y que los mecanismos histéricos eran la defensa para su completo florecimiento.

El objeto de esta comunicación es presentar los mecanismos principales que pudieron ser observados en la entrada al período psicótico y en relación con la transferencia. Para poder comprenderlos, daré las notas esenciales de su historial.

Historial

El padre es un hombre severo, sarcástico y dominante. La madre, dedicada al hogar, es inteligente, trata de suavizar los modales del marido, pero es la principal frustradora de las tendencias sexuales de la paciente. Son tres hermanas: la enferma ocupa el lugar intermedio con una diferencia de año y medio entre la mayor y la menor.

Después

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