Abstract: A method for repairing a wrapper associated with an information source, includes defining a classifier, based on content features of extracted and labeled information using the wrapper, using the classifier to extract content information from the file according to a set of classifier extraction rules; analyzing the extracted content information according to the content features and assigning a label to any extracted content information which satisfies the label's rules; and defining a repaired wrapper as the classifier and those labels in the set which have been assigned to extracted content information. Additional content information and labels can be extracted by iteratively creating a classifier based on both content features and structure features of extracted strings.

Abstract: An electronic board system includes an electronic board having a screen for displaying information of interest to a work group or community, an input device for receiving information from users in a group or community to be displayed on the electronic board, a memory for storing information received from the input device and a processor for selecting which information stored in the memory to display on the screen, where and how to display the selected information on the screen and displaying the selected information on the screen. The processor selects which information to display in accordance with a predetermined relationship based on a group-based recommendation criteria and user interest. A plurality of sensors disposed behind the screen detect user interest in information displayed on the screen near the sensor. User interest may also be determined by monitoring user requests for copies of information displayed on the screen.