糖心TV

Sailing the Corpus Sea: Tools for Visual Discovery of Stories in Blogs and
News
Bettina Berendt - Katholieke Universiteit Leuven, Belgium

Rich information spaces like blogs or news are full of "stories":
sets of statements that evolve over time, made in fastgrowing
streams of documents. Even if one reads a specific
source every day and/or subscribes to a selection of feeds, one
may easily lose track; in addition, it is difficult to reconstruct
a story already in the past. In this talk, I present the STORIES
methods and tool for (a) learning an abstracted story
representation from a collection of time-indexed documents;
(b) visualizing it in a way that encourages users to interact and
explore in order to discover temporal "story stages" depending
on their interests; (c) supporting the search for documents
and facts that pertain to the user-constructed story stages; and
(d) navigating in document space along multiple meaningful
dimensions of document similarity and relatedness. This
combination provides users with more control, progressing
from "surfing" the (Social) Web to "sailing" selected corpora
of it, semantically in story space as well as between the underlying
documents. An evaluation demonstrates that machine
learning and interaction lead to representations that serve to
retrieve coherent and relevant document subsets and that help
users learn facts about the story.