document: Visually guided bottom-up table detection and segmentation in web documents In the AllRight project , we are developing an algorithm for unsupervised table detection and segmentation that uses the visual rendition of a Web page rather than the HTML code . Our algorithm works bottom-up by grouping word bounding boxes into larger groups and uses a set of heuristics . It has already been implemented and a preliminary evaluation on about 6000 Web documents has been carried out .
doc_bio_tags: O O O B I O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O