Decoherence by a nonlinear environment: canonical vs. microcanonical case

We compare decoherence induced in a simple quantum system (qubit) for two different initial states of the environment: canonical (fixed temperature) and microcanonical (fixed energy), for the general case of a fully interacting oscillator environment. We find that even a relatively compact oscillator bath (with the effective number of degrees of freedom of order 10), initially in a microcanonical state, will typically cause decoherence almost indistinguishable from that by a macroscopic, thermal environment, except possibly at singularities of the environment's specific heat (critical points). In the latter case, the precise magnitude of the difference between the canonical and microcanonical results depends on the critical behavior of the dissipative coefficient, characterizing the interaction of the qubit with the environment.Comment: 18 pages, revtex, 2 figures; minor textual changes, corrected typo in eq. (53) (v2); textual changes, mostly in the introduction (v3

The proxemics of 'Neither'

This chapter takes as its point of departure the frequent injunction in Beckett’s late prose works to build or construct an environment for a character to inhabit. It is proposed that this instruction is central to the textual operations of the late prose. Making use of the work of Philippe Hamon on text and architecture, and through a close reading of Beckett’s short prose piece (originally written as a libretto for Morton Feldman), it is argued that, despite its sparse nature, ‘Neither’ can, in large part, still be read as exemplifying Hamon’s insights into the operations of the textual and the architectural as these were manifest in the classic realist novel. The specific challenges which Beckett’s late prose present, however, require a supplementary critical vocabulary in order to account for the manner in which the textual and the architectural interpenetrate and expose each other in the twentieth century

Ellogon: A New Text Engineering Platform

This paper presents Ellogon, a multi-lingual, cross-platform, general-purpose text engineering environment. Ellogon was designed in order to aid both researchers in natural language processing, as well as companies that produce language engineering systems for the end-user. Ellogon provides a powerful TIPSTER-based infrastructure for managing, storing and exchanging textual data, embedding and managing text processing components as well as visualising textual data and their associated linguistic information. Among its key features are full Unicode support, an extensive multi-lingual graphical user interface, its modular architecture and the reduced hardware requirements.Comment: 7 pages, 9 figures. Will be presented to the Third International Conference on Language Resources and Evaluation - LREC 200

E-Carrel: An Environment for Collaborative Textual Scholarship

The E-Carrel project aims to address the preservation of, access to, and re-uses of humanities electronic text files. It enables dynamic, growing resource projects as repositories for new knowledge. It provides for on-line distributed data and tools that are open to new scholarly enhancement through a user friendly tagging tool, sophisticated use of stand-off markup and annotation (leveraging RDF capabilities), and a browsing system anyone can use. It creates a secure system of text preparation and dissemination that encourages collaboration and participation by anyone interested in the texts. To insure the endurance of authenticated texts, multiple copies are distributed on the Internet. Foundation texts anchor a system for maintaining and growing project usefulness beyond the originators’ interest and the functions they imagined. Increasing access to humanities texts as useful, adaptable, reliable source materials that can be re-purposed will increase interest in continued maintenance, which are critical for long-term preservation and access

Attitudes expressed in online comments about environmental factors in the tourism sector: an exploratory study

The object of this exploratory study is to identify the positive, neutral and negative environment factors that affect users who visit Spanish hotels in order to help the hotel managers decide how to improve the quality of the services provided. To carry out the research a Sentiment Analysis was initially performed, grouping the sample of tweets (n = 14459) according to the feelings shown and then a textual analysis was used to identify the key environment factors in these feelings using the qualitative analysis software Nvivo (QSR International, Melbourne, Australia). The results of the exploratory study present the key environment factors that affect the users experience when visiting hotels in Spain, such as actions that support local traditions and products, the maintenance of rural areas respecting the local environment and nature, or respecting air quality in the areas where hotels have facilities and offer services. The conclusions of the research can help hotels improve their services and the impact on the environment, as well as improving the visitors experience based on the positive, neutral and negative environment factors which the visitors themselves identified

Representation and Encoding of Heterogeneous Data in a Web Based Research Environment for Manuscript and Textual Studies

This paper describes the general architecture of a digital research environment for manuscript and textual studies (particularly those pertaining to ancient Greek and Byzantine texts), and it discusses some questions of data representation and encoding in the framework of such an online research platform. The platform is being developed by the project Teuchos. Zentrum für Handschriften- und Textforschung, established in 2007 by the Institut für Griechische und Lateinische Philologie (Universität Hamburg) in cooperation with the Aristoteles-Archiv (Freie Universität Berlin). Teuchos is a long-term infrastructural project of the Universität Hamburg. It is currently in its three-year initial phase which is being co-funded by the German Research Foundation (DFG) through the "Thematic Information Networks" scheme within the "Scientific Library Services and Information Systems" programme. We introduce the main object types to be handled by our system and describe the overall functionality of the online platform. The paper focuses on the representations of two main object types: manuscripts as textual witnesses and watermarks, with an emphasis on the former. Since the adequate encoding of different layers of structure of a transmitted text is particularly relevant to optimising users' choices of navigating both digital images of the containing manuscripts and trancriptions of the text contained, this topic is discussed in some detail. We introduce the formal data model and the corresponding encoding for the object types discussed. The project encodes textual data in XML, aiming for TEI conformance where possible. Since no accepted XML model exists for the encoding of metadata within a watermark collection, we briefly explain how we chose to model the objects to accomodate the collections the project is making accessible

Terminology mining in social media

The highly variable and dynamic word usage in social media presents serious challenges for both research and those commercial applications that are geared towards blogs or other user-generated non-editorial texts. This paper discusses and exemplifies a terminology mining approach for dealing with the productive character of the textual environment in social media. We explore the challenges of practically acquiring new terminology, and of modeling similarity and relatedness of terms from observing realistic amounts of data. We also discuss semantic evolution and density, and investigate novel measures for characterizing the preconditions for terminology mining

Where’s Morningside? Locating bro’Town in the ethnic genealogy of New Zealand/Aotearoa

This article uses discourse analysis to locate animated primetime cartoon comedy bro'Town in terms of ethnicity and identification in both a local New Zealand/Aotearoa (NZ) and a global, postmodern, postcolonial media environment. It analyses and problematises the polarisation of local ethnic discourse between conservative assimilationist and bicultural "politically correct" viewpoints by situating the text in global postmodern media environment and demonstrating the discursive interdependence of such binary oppositions. Finally it looks at the degree to which bro'Town's self-proclaimed status as "hilariously anti-PC" comedy works to both exploit and undermine polarities of ethnic representation through employing "reverse discourse". The overall aim of the paper is not to present a close reading or textual analysis, but to situate the text in larger discursive frameworks and thus offer a number of possible theoretical approaches

Text-to-intonation in spontaneous Swedish

This paper deals with a number of aspects of intonation in spontaneous dialogues in a language technology perspective. The key topics to be addressed are: I) the analysis of global intonation and its interaction with textual structure, II) the implementation of global and textual aspects of discourse intonation in an analysis-by-synthesis environment. We present models for the analyses of intonation and textual content in spontaneous conversations in Swedish. The models are implemented in a computational environment, making it possible to generate F0 contours, which can be imposed on a speech waveform using the PSOLA technique. The result is a text-to-intonation system, where textual and lexical analyses automatically generate hypothetical intonation contours, which can through resynthesis, and eventually be used in a text-to-speech system