Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Computer Engineering
Textual Case-Based Reasoning For Spam Filtering: A Comparison Of Feature-Based And Feature-Free Approaches, Sarah Jane Delany, Derek Bridge
Textual Case-Based Reasoning For Spam Filtering: A Comparison Of Feature-Based And Feature-Free Approaches, Sarah Jane Delany, Derek Bridge
Articles
Spam filtering is a text classification task to which Case-Based Reasoning (CBR) has been successfully applied. We describe the ECUE system, which classifies emails using a feature-based form of textual CBR. Then, we describe an alternative way to compute the distances between cases in a feature-free fashion, using a distance measure based on text compression. This distance measure has the advantages of having no set-up costs and being resilient to concept drift. We report an empirical comparison, which shows the feature-free approach to be more accurate than the feature-based system. These results are fairly robust over different compression algorithms in …
A Comparative Test Of Brillouin Amplification And Erbium-Doped Fiber Amplification For The Generation Of Millimeter Waves With Low Phase Noise Properties, Markus Junker, Max Ammann, Andreas Schwarzbacher, Jens Klinger, Kai-Utwe Lauterback, Thomas Schneider
A Comparative Test Of Brillouin Amplification And Erbium-Doped Fiber Amplification For The Generation Of Millimeter Waves With Low Phase Noise Properties, Markus Junker, Max Ammann, Andreas Schwarzbacher, Jens Klinger, Kai-Utwe Lauterback, Thomas Schneider
Articles
Measurements of phase noise of a 40-GHz carrier signal are presented. The carrier is generated by the amplification of harmonics due to stimulated Brillouin scattering. An analogy to a generation of millimeter waves by an erbium-doped fiber instead of the Brillouin amplifier is investigated and discussed. In our setup, both show a comparable behavior in respect to their noise characteristics.
Attention Driven Reference Resolution In Multimodal Contexts, John D. Kelleher
Attention Driven Reference Resolution In Multimodal Contexts, John D. Kelleher
Articles
In recent years a a number of psycholinguistic experiments have pointed to the interaction between language and vision. In particular, the interaction between visual attention and linguistic reference. In parallel with this, several theories of discourse have attempted to provide an account of the relationship between types of referential expressions on the one hand and the degree of mental activation on the other. Building on both of these traditions, this paper describes an attention based approach to visually situated reference resolution. The framework uses the relationship between referential form and preferred mode of interpretation as a basis for a weighted …