Jisc Briefing Document on Data Citations

Commissioned paper from Cameron Neylon (Curtin University) on citation practices for research data. Includes information on current (2016) global activity in the field, parallels with traditional citation, and recommendations.

Final Supplemental Environmental Document Pacific herring commercial fishing regulations (Sections 163, 163.1, and 164, Title 14, California Code of Regulations)

(PDF contains 63 pages.)

Neural representation of auditory temporal structure

Neurons in the songbird forebrain nucleus HVc are highly sensitive to auditory temporal context and have some of the most complex auditory tuning properties yet discovered. HVc is crucial for learning, perceiving, and producing song, thus it is important to understand the neural circuitry and mechanisms that give rise to these remarkable auditory response properties. This thesis investigates these issues experimentally and computationally.

Extracellular studies reported here compare the auditory context sensitivity of neurons in HV c with neurons in the afferent areas of field L. These demonstrate that there is a substantial increase in the auditory temporal context sensitivity from the areas of field L to HVc. Whole-cell recordings of HVc neurons from acute brain slices are described which show that excitatory synaptic transmission between HVc neurons involve the release of glutamate and the activation of both AMPA/kainate and NMDA-type glutamate receptors. Additionally, widespread inhibitory interactions exist between HVc neurons that are mediated by postsynaptic GABA_A receptors. Intracellular recordings of HVc auditory neurons in vivo provides evidence that HV c neurons encode information about temporal structure using a variety of cellular and synaptic mechanisms including syllable-specific inhibition, excitatory post-synaptic potentials with a range of different time courses, and burst-firing, and song-specific hyperpolarization.

The final part of this thesis presents two computational approaches for representing and learning temporal structure. The first method utilizes comput ational elements that are analogous to temporal combination sensitive neurons in HVc. A network of these elements can learn using local information and lateral inhibition. The second method presents a more general framework which allows a network to discover mixtures of temporal features in a continuous stream of input.

Compression of Chinese document images based on morphologic analysis and pattern matching

We propose a highly efficient content-lossless compression scheme for Chinese document images. The scheme combines morphologic analysis with pattern matching to cluster patterns. In order to achieve the error maps with minimal error numbers, the morphologic analysis is applied to decomposing and recomposing the Chinese character patterns. In the pattern matching, the criteria are adapted to the characteristics of Chinese characters. Since small-size components sometimes can be inserted into the blank spaces of large-size components, we can achieve small-size pattern library images. Arithmetic coding is applied to the final compression. Our method achieves much better compression performance than most alternative methods, and assures content-lossless reconstruction. (c) 2006 Society of Photo-Optical Instrumentation Engineers.

Importancia del proyecto en la documentaci??n geom??trica del patrimonio

[ES] La medida y representaci??n del un elemento patrimonial debe responder a unas necesidades. Ser?? dif??cil plantear un proceso de documentaci??n geom??trica encaminado exclusivamente a conservar la informaci??n sobre su forma y dimensiones, si no son determinadas previamente las caracter??sticas de la informaci??n que se requiere conservar: su cantidad, c??mo se almacenar??, se gestionar??, se reproducir?? y difundir??. Se considera al Proyecto de Documentaci??n Geom??trica como el eje vertebrador de la intervenci??n, entendiendo por tal, el documento que recoge las necesidades y circunstancias que rodean al elemento patrimonial, propone resultados para satisfacerlas, plantea alternativas tecnol??gicas junto a la evaluaci??n de los recursos temporales, instrumentales y econ??micos de cada una de las opciones; y en definitiva supone el dise??o de la intervenci??n para la medida y la representaci??n. En este art??culo se analizan las circunstancias que justifican la redacci??n del proyecto y la transcendencia de la generaci??n de este documento en el proceso de la documentaci??n geom??trica.