Reference:

Matti Pöllä and Timo Honkela. Change detection of text documents using negative first-order statistics. In Poceedings of AKRR'08, The Second International and Interdisciplinary Conference on Adaptive Knowledge Representation and Reasoning, pages 48–55, Porvoo, Finland, September 2008.

Suggested BibTeX entry:

@inproceedings{polla08akrr,
    address = {Porvoo, Finland},
    author = {Matti P{\"o}ll{\"a} and Timo Honkela},
    booktitle = {Poceedings of {AKRR'08}, The Second International and Interdisciplinary Conference on Adaptive Knowledge Representation and Reasoning},
    month = {September},
    pages = {48--55},
    title = {Change detection of text documents using negative first-order statistics},
    year = {2008},
}