Abstract: Methods and systems for estimating recall while screening an ordered list of bibliographic references are provided. According to one embodiment, a method includes: sorting a list of bibliographic references according to a sorting algorithm to produce a first list in order from most to least relevant; selecting, from the list, the most relevant reference, and displaying, to a human screener, information associated with the selected reference; and receiving the screener's judgment of the relevance of the selected reference. If sufficiently relevant, the selected reference is moved from the first list to a second list. The received indication is used to re-sort the remaining references in the first list. A statistical model is used to estimate the number of relevant references remaining. That estimate is displayed to the screener. The process ends when the screener determines, based on the displayed estimate, that a sufficient number of relevant references has been found.

Abstract: According to one aspect, the subject matter described herein includes a method for extracting text from unstructured documents. The method includes creating a spatial index for storing information about words on a page of a document to be analyzed; using the spatial index to detect white space that indicates boundaries of columns within the page, aggregate words into lines, identify lines that are part of a header or footer of the page, and identify lines that are part of a table or a figures within the page; and joining lines together to generate continuous text flows. In one embodiment, the continuous text is divided into sections. In one embodiment, references within the document are identified. In one embodiment, inline citations within the document body are replaced with the corresponding reference information, or portions thereof.

Abstract: Methods and systems for estimating recall while screening an ordered list of bibliographic references are provided. According to one embodiment, a method includes: sorting a list of bibliographic references according to a sorting algorithm to produce a first list in order from most to least relevant; selecting, from the list, the most relevant reference, and displaying, to a human screener, information associated with the selected reference; and receiving the screener's judgment of the relevance of the selected reference. If sufficiently relevant, the selected reference is moved from the first list to a second list. The received indication is used to re-sort the remaining references in the first list. A statistical model is used to estimate the number of relevant references remaining. That estimate is displayed to the screener. The process ends when the screener determines, based on the displayed estimate, that a sufficient number of relevant references has been found.