71,219 research outputs found
The Segment Ontology: Bridging Music-generic and Domain-specific
Get PDFExisting semantic representations of music analysis encapsulate narrow sub-domain concepts and are frequently scoped by the context of a particular MIR task. Segmentation is a crucial abstraction in the investigation of phenomena which unfold over time; we present a Segment Ontology as the backbone of an approach that models properties from the musicological domain independently from MIR implementations and their signal processing foundations, whilst maintaining an accurate and complete description of the relationships that link them. This framework provides two principal advantages which are explored through several examples: a layered separation of concerns that aligns the model with the needs of the users and systems that consume and produce the data; and the ability to link multiple analyses of differing types through transforms to and from the Segment axis
09302 Summary – New Developments in the Visualization and Processing of Tensor Fields
Get PDFThis Dagstuhl Seminar was concerned with the visualization and processing of tensor fields, like its two predecessors: seminar 04172 organized by Hans Hagen and Joachim Weickert in April 2004, and the follow-up seminar 07022 in January 2007 with David Laidlaw and Joachim Weickert as organizers. Both earlier meetings were successful, resulting in well received books and triggering fruitful scientific interaction and exchange of experience across interdisciplinary boundaries. We believe that the 2009 seminar will prove to have been equally successful
Author inscription in Poems
No full textThis edition includes an author's inscription, "with the regards of J.T. Fields."Fields, James Thomas, 1817-1881
England Calling: A Narratological Exploration of Martin Amis’s 'London Fields'
Get PDFThis paper will explore connections between fictional narrative methodology and contemporary conceptions of Englishness by applying aspects of Gerald Prince’s (2005) conceptions of a ‘postcolonial narratology’ to Martin Amis’s “London Fields” (1989). Amis has commented that ‘it’s almost an act of will on my part trying not to be an English writer’. However, this paper will suggest that the novel under consideration here exhibits methodological tendencies which have their roots in a protracted engagement with problematic notions of English identity (principally, instability and disengagement) and that postcolonial approaches to narrative technique can lead to very interesting results, even when applied to the work of writers not typically identified with such constituencies. The central point of investigation will be the novel’s exhibition of metafictional tendencies. In “London Fields”, Amis narrates via an authorial surrogate, Samson Young, who purports to be the author of the text, yet becomes implicated in the events of the novel to the point where his actions, rather than his imagination, determine its outcome. It is interesting also in this connection that the novel is voiced by an ‘outsider’ to England, an American.
Prince is intrigued by the possibility that a postcolonial narrative discourse might emerge ‘free of any narratorial introduction, mediation, or patronage.’ He also points to the significance of narratological features such as hybridity, migrancy, otherness, fragmentation, diversity and power relations. Amis’s novel exhibits all of these features, and takes the ambition of authorial invisibility to a paradoxical extreme. Voices, characters, reliability and even actantial events are brusquely ‘disowned’ by the author, resulting in a textual instability and uncertainty which, it will be demonstrated through close textual analysis, is intimately linked to England’s postcolonial condition
Algebraic Representations for Volumetric Frame Fields
Get PDFField-guided parametrization methods have proven effective for quad meshing of surfaces; these methods compute smooth cross fields to guide the meshing process and then integrate the fields to construct a discrete mesh. A key challenge in extending these methods to three dimensions, however, is representation of field values. Whereas cross fields can be represented by tangent vector fields that form a linear space, the 3D analog---an octahedral frame field---takes values in a nonlinear manifold. In this work, we describe the space of octahedral frames in the language of differential and algebraic geometry. With this understanding, we develop geometry-aware tools for optimization of octahedral fields, namely geodesic stepping and exact projection via semidefinite relaxation. Our algebraic approach not only provides an elegant and mathematically-sound description of the space of octahedral frames but also suggests a generalization to frames whose three axes scale independently, better capturing the singular behavior we expect to see in volumetric frame fields. These new odeco frames, so-called as they are represented by orthogonally decomposable tensors, also admit a semidefinite program--based projection operator. Our description of the spaces of octahedral and odeco frames suggests computing frame fields via manifold-based optimization algorithms; we show that these algorithms efficiently produce high-quality fields while maintaining stability and smoothness
Nature of anger in the workplace: exploration of relevant variables and their structure
Get PDFThe author has granted permission for their work to be available to the general public.In the workplace, counter productive work behaviors (CWBs) are strongly discouraged. Vardi and Weitz (2004) concluded that counter productive work behaviors are a fairly common occurrence and cost businesses billions of dollars each year. Many of these CWBs are perpetrated by angry or disgruntled employees. When angry employees are identified they can be helped with coping strategies to productively manage their anger, as opposed to engaging in CWBs (Hargrave, Hiatt, Dannenbaum, & Shaffer, 2008). This paper seeks to better equip professionals and researchers with tools to identify these at risk employees. Specifically the Anger Parameters Scales (APS) and the Anger Expressions Scale (AES) have been examined in a workplace sample for the first time. Additionally this study has examined the use of more readily available demographic information to predict at risk persons. The expected factors of the measures in question did not emerge as predicted by the AES. The factor structure of the APS was partially validated as four of the five scales loaded well enough for further analysis. None of these scales could be captured by more available demographic variables. This study also gathered normative data on anger elicitors by means of coding narratives of participants who were asked to describe a typical anger provoking situation.Psycholog
Customized turbulent flow fields
No full textA new approach is shown, which describes the interaction between an active grid excitation and a wind tunnel flow. With this approach we are able to find an excitation for the grid which reproduces an any turbulent flow field. Thereby we can bring free field measurements inside the wind tunnel. The presentation will show how the approach works and comparisons between reference data sets (outside measurements by ultrasonic anemometer) and wind tunnel flow fields generated by an active grid
Tagging of Biomedical Articles on CiteULike: A Comparison of User, Author and Professional Indexing
Get PDFThis paper examines the context of online indexing from the viewpoint of three different groups: users, authors, and professional indexers. User tags, author keywords and descriptors were collected from academic journal articles, which were both indexed in Pubmed and tagged on CiteULike, and analysed. Descriptive statistics, informetric measures, and thesaural term comparison shows that there are important differences in the use of keywords between the three groups in addition to similarities which can be used to enhance support for search and browse. While tags and author keywords were found that matched descriptors exactly, other terms which did not match but provided important expansion to the indexing lexicon were found. These additional terms could be used to enhance support for searching and browsing in article databases as well as to provide invaluable data for entry vocabulary and emergent terminology for regular updates to indexing systems. Additionally, the study suggests that tags support organisation by association to task, projects and subject while making important connections to traditional systems which classify into subject categories
Measuring industry-science links through inventor-author relations: A profiling method
Get PDFIn this pilot study we examine the performance of text-based profiling in recovering a set of validated inventor-author links. In a first step we match patents and publications solely based on their similarity in content. Next, we compare inventor and author names on the highest ranked matches for the occurrence of name matches. Finally, we compare these candidate matches with the names listed in a validated set of inventor-author names. Our text-based profile methodology performs significantly better than a random matching of patents and publications, suggesting that text-based profiling is a valuable complementary tool to the name searches used in previous studies.innovation; industry-science links; text-based profiling;
How Demanding Should Equality of Opportunity Be, and How Much Have We Achieved?
No full textIn this paper we provide an application-oriented characterization of a class of distance functions monotonically related to the Euclidean distance in terms of some general properties of distance functions between real-valued vectors. Our analysis hinges upon two fundamental properties of distance functions that we call “value-sensitivity” and “order- sensitivity”. We show how these two general properties, combined with natural monotonicity considerations, lead to characterization results that single out several versions of Euclidean distance from the wide class of separable distance functions. We then discuss and motivate our results in two different and apparently unrelated application areas — mobility measurement and spatial voting theory — and propose our characterization as a test for deciding whether Euclidean distance (or some suitable variant) should be used in your favourite application context
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