182,476 research outputs found
Simple wald tests of the fractional integration parameter: an overview of new results
No full textForthcoming 2008This paper presents an overview of some new results regarding an easily implementable Wald test-statistic (EFDF test) of the null hypotheses that a time-series process is I(1) or I(0) against fractional I(d) alternatives, with d ∈ (0, 1), allowing for unknown deterministic components and serial correlation in the error term. Specifically, we argue that the EFDF test has better power properties under fixed alternatives than other available tests for fractional integration, as well as analyze how to implement this test when the determinitic components or the long-memory parameter are subject to structural breaks.En prens
Concurrent collaborative captioning
No full textCaptioned text transcriptions of the spoken word can benefit hearing impaired people, non native speakers, anyone if no audio is available (e.g. watching TV at an airport) and also anyone who needs to review recordings of what has been said (e.g. at lectures, presentations, meetings etc.) In this paper, a tool is described that facilitates concurrent collaborative captioning by correction of speech recognition errors to provide a sustainable method of making videos accessible to people who find it difficult to understand speech through hearing alone. The tool stores all the edits of all the users and uses a matching algorithm to compare users’ edits to check if they are in agreement
Lillian D. Wald collection undated, 1929
No full textCollection contains: Invitation /Program from a 1929 dinner to discuss the Conference on Immigration Policy at which Lillian Wald was a guest speaker. Flyers publicizing the need for nurses during the Spanish Influenza epidemic. Miss Wald's calling card with handwriting on it (writer unknown)unknownPioneer in nursing services for the indigent. Founder of Henry Street SettlementNHPRCCAT - r
An exploration of the potential of Automatic Speech Recognition to assist and enable receptive communication in higher education
No full textThe potential use of Automatic Speech Recognition to assist receptive communication is explored. The opportunities and challenges that this technology presents students and staff to provide captioning of speech online or in classrooms for deaf or hard of hearing students and assist blind, visually impaired or dyslexic learners to read and search learning material more readily by augmenting synthetic speech with natural recorded real speech is also discussed and evaluated. The automatic provision of online lecture notes, synchronised with speech, enables staff and students to focus on learning and teaching issues, while also benefiting learners unable to attend the lecture or who find it difficult or impossible to take notes at the same time as listening, watching and thinking
Power comparison among tests for fractional unit roots
No full textThis article compares the asymptotic power properties of the Wald, the Lagrange Multiplier and the Likelihood Ratio test for fractional unit roots. The paper shows that there is an asymptotic inequality between the three tests that holds under fixed alternatives.Publicad
Totholz im Wald. Entstehung, Bedeutung und Förderung
No full textDas durchschnittliche Totholzvolumen im Schweizer Wald reicht für den Erhalt vieler Totholzorganismen aus. Um anspruchsvolle Arten, die auf viel Totholz in einer bestimmten Qualität angewiesen sind, zu fördern, sind gezielte Massnahmen nötig. Geeignete Instrumente für die Förderung solcher Arten sind Naturwaldreservate oder Altholzinseln. Obschon die Totholzmenge im Schweizer Wald seit einigen Jahrzehnten zunimmt, sind die Ziele im Bereich der Totholzförderung noch nicht erreicht. Die Totholzförderung kann auf verschiedenen Ebenen, von der regionalen Planung bis zur Holzernte, stattfinden. In Form von Waldreservaten und Altholzinseln wird die Totholzförderung mit dem Waldeigentümer vertraglich langfristig gesichert (segregativer Ansatz). In Betriebsplänen sollte das Stehenlassen von Totholz und Habitatbäumen als Ziel formuliert sein (integrativer Ansatz). Umgekehrt gefährden herabfallende tote Äste Waldbesucher und Waldarbeiter. Letztlich gehören Waldreservate, Habitatbäume und Altholzinseln zu einer modernen Waldbewirtschaftung. Daher ist mit allfälligen Gefahren zu rechnen. Obwohl bis heute kein juristischer Präzedenzfall in Zusammenhang mit Totholz in der Schweiz bekannt ist, bleibt die juristische Situation für die Waldeigentümer und Bewirtschafter unbefriedigend.
Die zunehmende Nachfrage nach Energieholz könnte den Trend zu mehr Totholz im Schweizer Wald stoppen oder sogar umkehren. Sowohl das Erhalten der Biodiversität als auch die Nutzung erneuerbarer Energiequellen sind Ziele einer nachhaltigen Entwicklung. Die Herausforderung im Wald wird darin bestehen, die nachwachsende Ressource Holz so zu nutzen, dass dies nicht zu Lasten der Biodiversität geschieht
Evaluation of the UTAUT model for acceptable user experiences in e-Government physical and virtual identity access management systems
No full textThe modern world is populated with a great many physical and virtual IAMS (Identity Access Management Systems), where people need to maintain various login credentials. There is a key issue associated with this approach, which is the ability to remember this information; however, this can be circumvented to some degree through utilising an innovative approach of a single sign-in mechanism. Throughout the course of recent times, a number of different systems have been developed in order to deliver both virtual and physical IAMS. Moreover, in addition to a greater level of awareness to ensure interoperable virtual and physical IAMS are implemented, there is a pressing urgency for clear guidelines to be devised relating to the integration of: security, comprising identity; user experience, involving usability; and acceptability, encompassing accessibility. Very few models adhere to such guidelines; therefore, this paper seeks to deal with the pressing need to devise, implement and evaluate a model for acceptable user experience, enabling the successful integration of physical and virtual public services in an e-government context. In regard to the users’ assessment, which tests the suggested Unified Theory of Acceptance and Use of Technology (UTAUT), it was observed that there is an indirect impact on behavioural intention to utilise a new prototype system (Ubiquitous Identity Access Management System ”UbIAMS” ) through various factors, namely effort expectancy, performance expectancy and social influence, as well as through items relating to acceptability and user experienc
Applying linked data in multimedia annotations
No full textCurrent multimedia applications in Web 2.0 have generated large repositories for multimedia resources and annotations, so there is an urgent requirement to interlink annotations of these resources across different repositories to achieve better indexing and searching. To solve this problem, many researchers have been trying to apply semantic Web technologies to media fragments and annotations. Linked data has brought forward a promising way to expose, index and search media fragments and annotations which used to be isolated in different applications. This paper discusses in depth three key research problems when applying linked data principles in multimedia annotations: choosing URIs for media fragments, dereferencing media fragments and ontology alignment. An architecture is designed based on the possible solutions of the research problems. The key idea of the architecture is that it should act like an extra layer built on top of old applications when publishing linked data. A demo is built as an implementation of the architecture to show that media fragments can be published and linked to various datasets in the linked data cloud. In the future, some algorithms should be designed to make full use of the interlinked media fragments and annotations for indexing and searching
What the woods can do for us? What can we do for the woods? – Ecopsychosomatic Forest Medicine
No full textDer Vortrag führt in kompakter Weise in Konzepte der Integrativen Natur- und Waldtherapie und ihre ökopsychosomatischen Perspektiven ein. Vor einem evolutionsbiologischen Hintergrund wird die Verbundenheit von Mensch und Wald/Natur aufgezeigt. Wir müssen für die Natur Sorge tragen, weil ihre Lebenszonen, wie der Wald oder die Ozeane, auch für uns Menschen Lebensgrundlagen und Heilendes bereitstellen: eine „doppelte Perspektive – Caring for Nature and Caring for People“.This lecture is giving a condensed introduction to the concepts of Integrative Nature and Forest Therapy and its ecopsychosomatic perspectives. On the ground of evolutionary biology the conviviality of man and woods/nature is emphasized. We need a caring for nature for its areas of life as forests and oceans are also for us humans the basis of life providing healing qualities for us: a “double perspective – Caring for Nature and Caring for People”https://www.fpi-publikation.de/gruene-texte/12-2017-hoemberg-r-was-macht-der-wald-fuer-uns-was-koennen-wir-fuer-den-wald-tun-oekopsychoso/peerReviewedpublishedVersio
Discussion and evaluation of the updated UTAUT Model in IAMSs
No full textThe modern world is populated with a great many physical and virtual IAMS (Identity Access Management Systems), where people need to maintain various login credentials. There is a key issue associated with this approach, which is the ability to remember this information; however, this can be circumvented to some degree through utilising an innovative approach of a single sign-in mechanism. Throughout the course of recent times, a number of different systems have been developed in order to deliver both virtual and physical IAMS. Moreover, in addition to a greater level of awareness to ensure interoperable virtual and physical IAMS are implemented, there is a pressing urgency for clear guidelines to be devised relating to the integration of: security, comprising identity; user experience, involving usability; and acceptability, encompassing accessibility. Very few models adhere to such guidelines; therefore, this paper seeks to deal with the pressing need to devise, implement and evaluate a model for acceptable user experience, enabling the successful integration of physical and virtual public services in an e-government context. In regard to the users’ assessment, which tests the suggested Unified Theory of Acceptance and Use of Technology (UTAUT), it was observed that there is an indirect impact on behavioural intention to utilise a new prototype system (Ubiquitous Identity Access Management System ”UbIAMS” ) through various factors, namely effort expectancy, performance expectancy and social influence, as well as through items relating to acceptability and user experience
- …
