FROM MUSIC INFORMATION RETRIEVAL (MIR) TO INFORMATION RETRIEVAL FOR MUSIC (IRM)

This thesis reviews and discusses certain techniques from the domain of (Music) Information Retrieval, in particular some general data mining algorithms. It also describes their specific adaptations for use as building blocks in the CACE4 software application. The use of Augmented Transition Networks (ATN) from the field of (Music) Information Retrieval is, to a certain extent, adequate as long as one keeps the underlying tonal constraints and rules as a guide to understanding the structure one is looking for. However since a large proportion of algorithmic music, including music composed by the author, is atonal, tonal constraints and rules are of little use. Analysis methods from Hierarchical Clustering Techniques (HCT) such as k-means and Expectation-Maximisation (EM) facilitate other approaches and are better suited for finding (clustered) structures in large data sets. ART2 Neural Networks (Adaptive Resonance Theory) for example, can be used for analysing and categorising these data sets. Statistical tools such as histogram analysis, mean, variance as well as correlation calculations can provide information about connections between members in a data set. Altogether this provides a diverse palette of usable data analysis methods and strategies for creating algorithmic atonal music. Now acting as (software) strategy tools, their use is determined by the quality of their output within a musical context, as demonstrated when developed and programmed into the Computer Assisted Composition Environment: CACE4. Music Information Retrieval techniques are therefore inverted: their specific techniques and associated methods of Information Retrieval and general data mining are used to access the organisation and constraints of abstract (non-specific musical) data in order to use and transform it in a musical composition

Shear-induced pressure changes and seepage phenomena in a deforming porous layer-I

We present a model for flow and seepage in a deforming, shear-dilatant sensitive porous layer that enables estimates of the excess pore fluid pressures and flow rates in both the melt and solid phase to be captured simultaneously as a function of stress rate. Calculations are relevant to crystallizing magma in the solidosity range 0.5–0.8 (50–20 per cent melt), corresponding to a dense region within the solidification front of a crystallizing magma chamber. Composition is expressed only through the viscosity of the fluid phase, making the model generally applicable to a wide range of magma types. A natural scaling emerges that allows results to be presented in non-dimensional form. We show that all length-scales can be expressed as fractions of the layer height H, timescales as fractions of H2(nβ'θ+ 1)/(θk) and pressures as fractions of . Taking as an example the permeability k in the mush of the order of magnitude 1015 m2 Pa1 s1, a layer thickness of tens of metres and a mush strength (θ) in the range 108–1012 Pa, an estimate of the consolidation time for near-incompressible fluids is of the order of 105–109 s. Using mush permeability as a proxy, we show that the greatest maximum excess pore pressures develop consistently in rhyolitic (high-viscosity) magmas at high rates of shear ( , implying that during deformation, the mechanical behaviour of basaltic and rhyolitic magmas will differ. Transport parameters of the granular framework including tortuosity and the ratio of grain size to layer thickness (a/H) will also exert a strong effect on the mechanical behaviour of the layer at a given rate of strain. For dilatant materials under shear, flow of melt into the granular layer is implied. Reduction in excess pore pressure sucks melt into the solidification front at a velocity proportional to the strain rate. For tectonic rates (generally 1014 s1), melt upwelling (or downwelling, if the layer is on the floor of the chamber) is of the order of cm yr1. At higher rates of loading comparable with emplacement of some magmatic intrusions (1010 s1), melt velocities may exceed effects due to instabilities resulting from local changes in density and composition. Such a flow carries particulates with it, and we speculate that these may become trapped in the granular layer depending on their sizes. If on further solidification the segregated grain size distribution of the particulates is frozen in the granular layer, structure formation including layering and grading may result. Finally, as the process settles down to a steady state, the pressure does not continue to decrease. We find no evidence for critical rheological thresholds, and the process is stable until so much shear has been applied that the granular medium fails, but there is no hydraulic failure

Systematic design of a multi-input multi-output controller by model-based decoupling:a demonstration on TCV using multi-species gas injection

In this paper, we present the first results of a systematically designed multi-input multi-output gas-injection controller on Tokamak á Configuration Variable (TCV). We demonstrate the simultaneous real-time control of the NII emission front position and line-integrated electron density using nitrogen and deuterium gas injection. Injection of nitrogen and/or deuterium affects both the NII emission front position and line-integrated electron density. This interplay between control loops is termed interaction and, when strongly present, makes designing a controller a significantly more complex problem. Interaction between the control loops can be reduced to an acceptable level by redefining inputs, decoupling the multi-input multi-output control problem to separated single-input single-output problems. We demonstrate how to achieve this by defining virtual control inputs from linear combinations of the actuators available. For the demonstration on TCV, linear combinations of deuterium and nitrogen gas injection are computed from transfer-function models to obtain these virtual inputs. The virtual inputs reduce the interaction in the control-relevant frequency range to a point where control of the NII emission front position and line-integrated electron density can be considered decoupled, allowing for the much simpler design of single-input single-output controllers for each loop. Implementing the controllers with the virtual inputs gives the multi-input multi-output gas-injection controller. This approach is well established in the control community, and is presented here as a demonstration to drive developments of multi-input multi-output control strategies. In particular, the envisioned control of particle- and heat fluxes impacting the divertor targets by injection of multiple gas species

A review of Bennelongia De Deckker & McKenzie, 1981 (Crustacea, Ostracoda) species from eastern Australia with the description of three new species

Australia is predicted to have a high number of currently undescribed ostracod taxa. The genus Bennelongia De Deckker & McKenzie, 1981 (Crustacea, Ostracoda) occurs in Australia and New Zealand, and has recently shown potential for high speciosity, after the description of nine new species from Western Australia. Here, we focus on Bennelongia from eastern Australia, with the objectives of exploring likely habitats for undiscovered species, genetically characterising published morphological species and scanning classical species for cryptic diversity. Two traditional (morphological) species are confi rmed to be valid using molecular evidence (B. harpago De Deckker & McKenzie, 1981 and B. pinpi De Deckker, 1981), while three new species are described using both morphological and molecular evidence. Two of the new species belong to the B. barangaroo lineage (B. dedeckkeri sp. nov. and B. mckenziei sp. nov.), while the third is a member of the B. nimala lineage (B. regina sp. nov.). Another species was found to be genetically distinct, but is not formally described here owing to a lack of distinguishing morphological features from the existing species B. cuensis Martens et al., 2012. Trends in diversity and radiation of the genus are discussed, as well as implications these results have for the conservation of temporary pool microfauna and our understanding of Bennelongia’s evolutionary origin

THE BULLET CANNOT PICK AND CHOOSE: The Life and Peacebuilding Work of Vaiba Kebeh Flomo of Liberia

In the following pages, you will find narrative stories about a Woman PeaceMaker, along with additional information to provide a deep understanding of a contemporary conflict and one person’s journey within it. These complementary components include a brief biography of the peacemaker, a historical summary of the conflict, a timeline integrating political developments in the country with personal history of the peacemaker, a question-and-answer transcript of select interviews, and a table of best practices in peacebuilding as demonstrated and reflected on by the peacemaker during her time at the Joan B. Kroc Institute for Peace & Justice. Peace activist and social worker Vaiba Kebeh Flomo has worked since 1998 to heal both her nation and its women from the 14- year civil war between rebel groups and the Liberian army. As the women’s desk officer for the Lutheran Church in Liberia – Trauma Healing and Reconciliation Program (LCL-THRP), Flomo supervises psychosocial services to war-affected women and girls and empowers them to build peace and promote nonviolence in their communities. By 2002 Flomo and a colleague from LCL-THRP were desperate to do more than respond to the war’s victims. Each day villages were being destroyed, children recruited by the rebels, women and girls raped. They knew the war must be stopped at its root. Together the two women formed the Christian Women Peace Initiative (CWPI), mobilizing women from all denominations in and around Monrovia to protest the war. CWPI inspired the creation of Muslim Women for Peace, and the two groups quickly merged to become Liberian Women Mass Action for Peace. Flomo was instrumental in presenting a written statement from the women to the warring factions in Liberia, asking them to negotiate a cease-fire and attend peace talks in Accra, Ghana, in 2003. She joined the delegation of women who traveled to Accra to pressure rebel groups and President Charles Taylor to continue talking until a peace agreement emerged. She then helped mobilize women to register and vote in the 2005 elections that resulted in Africa’s first elected female president, Ellen Johnson-Sirleaf. Flomo’s role in the Liberian women’s peace movement was documented in the 2008 film “Pray the Devil Back to Hell.” Flomo’s peace work is not confined to Liberia’s borders. She traveled to Sierra Leone in 2007 as part of a “peace train” advocating for violence-free elections, and in 2009 she shared her peacebuilding experiences with the women of southern Sudan, emboldening them to create recommendations for their own political leaders on the inclusion of women in peace processes. Adamant that the health of Liberian society depends on the participation of women and youth, Flomo continues to focus on healing and rehabilitating women and girls, mending broken relationships between survivors and offenders of the civil war, and increasing the number of women involved in post-war peacebuilding and reconstruction. When asked who it was that stirred her desire to work so tirelessly for peace and the children of war, she says, “my mother.”https://digital.sandiego.edu/ipj-research/1026/thumbnail.jp

The Reaffirmation of Federalism as a Viable Limitation Upon the Commerce Power

Throughout its history, the constitutional basis of the FLSA has remained anchored in the Commerce Clause. However, despite the legitimacy of that purpose, the FLSA has been the subject of constant attacks since its inception, the most fervent of which has been the challenge to its constitutionality on state sovereignty grounds. Two recent United States Supreme Court cases construing the constitutionality of the FLSA and its amendments reflect not only the changing judicial posture toward extension of the Act to matters of state concern, but also the differing attitudes toward extension of the Commerce Clause itself