✦ LIBER ✦

Contrast enhancement and background suppression of chemosensor array patterns with the KIII model

✍ Scribed by Agustin Gutierrez-Galvez; Ricardo Gutierrez-Osuna

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 423 KB
Volume: 21
Category: Article
ISSN: 0884-8173
DOI: 10.1002/int.20170

No coin nor oath required. For personal study only.

✦ Synopsis

Inspired by the ability of the olfactory bulb to enhance the contrast between odor representations, we propose a new hebbian learning rule that is able to increase the separability of odor patterns from gas sensor arrays. The proposed learning rule employs a hebbian term to build associations within odors and an anti-hebbian term to reduce correlated activity across odors. In addition to increasing the separability of patterns, the new learning rule can also achieve odor background suppression when combined with a habituation term. These two functions are demonstrated on Freeman's KIII, a neurodynamics model of the olfactory system. The system is first characterized on synthetic data, and also validated on experimental data from an array of chemical sensors exposed to organic solvents.

📜 SIMILAR VOLUMES

Background identification and suppressio

Background identification and suppression for the measurement of (n,γ) reactions with the DANCE array at LANSCE

✍ R. Reifarth; T.A. Bredeweg; A. Alpizar-Vicente; J.C. Browne; E.-I. Esch; U. Grei 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 644 KB

Three-dimensional high-resolution dynami

Three-dimensional high-resolution dynamic contrast-enhanced MR angiography of the pelvis and lower extremities with use of a phased array coil and subtraction: Diagnostic accuracy

✍ Yasuyuki Yamashita; Katsuhiko Mitsuzaki; Ichiro Ogata; Mutsumasa Takahashi; Yasu 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 824 KB

In this study, our purpose was to compare the high-resolution contrast-material-enhanced three-dimensional subtraction MR angiography with conventional angiography for occlusive disease in the pelvic and lower extremity arteries. A three-dimensional fast-imaging with steady precession (FISP) sequenc

Suppression of astroglial scar formation

Suppression of astroglial scar formation and enhanced axonal regeneration associated with functional recovery in a spinal cord injury rat model by the cell cycle inhibitor olomoucine

✍ Dai-Shi Tian; Zhi-Yuan Yu; Min-Jie Xie; Bi-Tao Bu; Otto W. Witte; Wei Wang 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 614 KB

## Abstract It is well established that axons of the adult mammalian CNS are capable of regrowing only a limited amount after injury. Astrocytes are believed to play a crucial role in the failure to regenerate, producing multiple inhibitory proteoglycans, such as chondroitin sulphate proteoglycans