Regularization, Adaptation, and Non-Independent Features Improve Hidden Conditional Random Fields for Phone Classification
David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
We show a number of improvements in the use of Hidden Conditional Random Fields (HCRFs) for phone classiﬁcation on the TIMIT and Switchboard corpora. We ﬁrst show that the use of regularization effectively prevents overﬁtting, improving over other methods such as early stopping. We then show that HCRFs are able to make use of non-independent features in phone classiﬁcation, at least with small numbers of mixture components, while HMMs degrade due to their strong independence assumptions. Finally, we successfully apply Maximum a Posteriori adaptation to HCRFs, decreasing the phone classiﬁcation error rate in the Switchboard corpus by around 1% – 5% given only small amounts of adaptation data.
|Keywords||No keywords specified (fix it)|
No categories specified
(categorize this paper)
Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
|Through your library||
References found in this work BETA
No references found.
Citations of this work BETA
No citations found.
Similar books and articles
Leigh Van Valen (2009). How Ubiquitous is Adaptation? A Critique of the Epiphenomenist Program. Biology and Philosophy 24 (2):267-280.
Angelo Gilio & Giuseppe Sanfilippo (2013). Conjunction, Disjunction and Iterated Conditioning of Conditional Events. In R. Kruse (ed.), Advances in Intelligent Systems and Computing. Springer.
Stephen J. Montgomery-Smith & Alexander R. Pruss, A Comparison Inequality for Sums of Independent Random Variables.
Philip G. Calabrese (2003). Operating on Functions with Variable Domains. Journal of Philosophical Logic 32 (1):1-18.
Robert Rosenberger (2012). Embodied Technology and the Dangers of Using the Phone While Driving. Phenomenology and the Cognitive Sciences 11 (1):79-94.
Frank Döring (1997). The Ramsey Test and Conditional Semantics. Journal of Philosophical Logic 26 (4):359-376.
Maarten Meester (2000). An Interview with Bernard-Henri Lévy: Grandeur and Misery of Commitment. Sartre Studies International 6 (2):62-66.
María De-Miguel-Molina & Mónica Martínez-Gómez (2011). A Comparative Empirical Study on Mobile ICT Services, Social Responsibility and the Protection of Children. Science and Engineering Ethics 17 (2):245-270.
Alexander Raichev (2005). Relative Randomness and Real Closed Fields. Journal of Symbolic Logic 70 (1):319 - 330.
Lindley Darden (1978). Discoveries and the Emergence of New Fields in Science. PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1978:149 - 160.
Sorry, there are not enough data points to plot this chart.
Added to index2010-12-22
Total downloads2 ( #350,376 of 1,101,577 )
Recent downloads (6 months)0
How can I increase my downloads?