78,822 research outputs found
The emergence of information systems: a communication-based theory
An information system is more than just the information technology; it is the system that emerges from the complex interactions and relationships between the information technology and the organization. However, what impact information technology has on an organization and how organizational structures and organizational change influence information technology remains an open question. We propose a theory to explain how communication structures emerge and adapt to environmental changes. We operationalize the interplay of information technology and organization as language communities whose members use and develop domain-specific languages for communication. Our theory is anchored in the philosophy of language. In developing it as an emergent perspective, we argue that information systems are self-organizing and that control of this ability is disseminated throughout the system itself, to the members of the language community. Information technology influences the dynamics of this adaptation process as a fundamental constraint leading to perturbations for the information system. We demonstrate how this view is separated from the entanglement in practice perspective and show that this understanding has far-reaching consequences for developing, managing, and examining information systems
Supporting early oral language skills for English language learners in inner city preschool provision
BACKGROUND: A significant number of children now enter formal education in England with reduced levels of proficiency in oral language. Children who come from disadvantaged backgrounds and who are English language learners (ELL) are at risk of limited oral language skills in English which impacts on later educational achievement. AIMS: This paper reports the development of a theoretically motivated oral language intervention, Talking Time, designed to meet the needs of preschool children with poor language skills in typical preschool provision. SAMPLE: One hundred and forty-two 4-year-old children attending three inner city preschools in a disadvantaged area of London, England. METHOD: This is a quasi-experimental intervention study comparing children exposed to Talking Time with children exposed to a contrast intervention and children receiving the statutory early years curriculum. Measures were taken of both targeted and non-targeted language and cognitive skills. RESULTS: Data were analysed for the ELL. The intervention had a significant effect on vocabulary, oral comprehension, and sentence repetition but not narrative skills. As predicted, there were no effects on the skills which were not targeted. CONCLUSIONS: Regular evidence-based oral language interactions can make significant improvements in children's oral language. There is a need to examine the efficacy of more intensive interventions to raise language skills to allow learners to access the curriculum
On predictability of rare events leveraging social media: a machine learning perspective
Information extracted from social media streams has been leveraged to
forecast the outcome of a large number of real-world events, from political
elections to stock market fluctuations. An increasing amount of studies
demonstrates how the analysis of social media conversations provides cheap
access to the wisdom of the crowd. However, extents and contexts in which such
forecasting power can be effectively leveraged are still unverified at least in
a systematic way. It is also unclear how social-media-based predictions compare
to those based on alternative information sources. To address these issues,
here we develop a machine learning framework that leverages social media
streams to automatically identify and predict the outcomes of soccer matches.
We focus in particular on matches in which at least one of the possible
outcomes is deemed as highly unlikely by professional bookmakers. We argue that
sport events offer a systematic approach for testing the predictive power of
social media, and allow to compare such power against the rigorous baselines
set by external sources. Despite such strict baselines, our framework yields
above 8% marginal profit when used to inform simple betting strategies. The
system is based on real-time sentiment analysis and exploits data collected
immediately before the games, allowing for informed bets. We discuss the
rationale behind our approach, describe the learning framework, its prediction
performance and the return it provides as compared to a set of betting
strategies. To test our framework we use both historical Twitter data from the
2014 FIFA World Cup games, and real-time Twitter data collected by monitoring
the conversations about all soccer matches of four major European tournaments
(FA Premier League, Serie A, La Liga, and Bundesliga), and the 2014 UEFA
Champions League, during the period between Oct. 25th 2014 and Nov. 26th 2014.Comment: 10 pages, 10 tables, 8 figure
FM contract relationships: from mobilisation to sustainable partnership
Purpose / theory
Outsourcing is a fundamental business model for the Facilities Management (FM) industry. To enable sustained mutual success the parties involved must seek to understand the unique, socially constructed, and often highly complex situational realities of the organisational ecologies they are engaged in. The FM industry can unlock improved performance and strategic credibility through an appreciation of the need for different conversations.
Design / methodology / approach
Findings from two recent cases are considered. Data from two different client-contractor relationship situations was collected utilising a critical ethnographic research methodology; a phenomenological paradigm that acknowledges knowledge as socially constructed through language. A variant on Scott-Morgan‟s unwritten-rules coding method was used to analyse the data and justify the prevalent themes and issues presented.
Findings
Findings include the role of perceptions and assertions in the construction of social realities, change management implications, and how these impact on the traditional view of the client/contractor relationship. Ethnographic findings are typically context specific, therefore generalisations must be carefully considered. The key findings are however substantiated by existing FM outsourcing literature.
Originality / value
Highlights the practical importance of seeking to understand socially embedded realities for improved FM contract performance. Considers the human resource element of change via FM outsourcing. Takes a social constructivist approach to organisational sense-making. Uses examples from focused, critical ethnographies to explore existing FM contracting dynamics. Qualitative investigations into related organisational circumstances are encouraged to further develop an evidence base
Justification, Conversation, and Folk Psychology
The aim of this paper is to offer a version of the so-called conversational hypothesis of the ontogenetic connection between language and mindreading (Harris 1996, 2005; Van Cleave and Gauker 2010; Hughes et al. 2006). After arguing against a particular way of understanding the hypothesis (the communicative view), I will start from the justificatory view in philosophy of social cognition (Andrews 2012; Hutto 2004; Zawidzki 2013) to make the case for the idea that the primary function of belief and desire attributions is to justify and normalize deviant patterns of behaviour. Following this framework, I elaborate upon the idea that development of folk psychological skills requires the subjects to engage in conversationally mediated joint and cooperative activities in order to acquire the conceptual capacity of ascribing propositional attitudes. After presenting the general version of the hypothesis, I present several testable sub-hypotheses and some psychological studies that give empirical plausibility to the hypothesis
Governing in the Anthropocene: What Future Systems Thinking in Practice?
The revealing and concealing features of the metaphor ‘earth as Anthropocene’ are explored in an inquiry that asks: In the Anthropocene what possible futures emerge for systems thinking in practice? Framing choice, so important yet so poorly realised, is the starting point of the inquiry. Three extant conceptual pathway-dependencies are unpacked: governance or governing; practice or practising and ‘system’. New data on the organisational complexity within the field of cybersystemics is presented; new ‘imaginaries’ including systemic co-inquiry and institutional recovery are proposed as novel institutions and practices to facilitate systemic transformations within an Anthropocene setting. The arguments of the paper are illustrated through a research case study based on attempts to transform water and/or river situations towards systemic water governance. It is concluded that future systems research can be understood as the search for effective ‘imaginaries’ that offer fresh possibilities within an Anthropocene framing
Extractive Adversarial Networks: High-Recall Explanations for Identifying Personal Attacks in Social Media Posts
We introduce an adversarial method for producing high-recall explanations of
neural text classifier decisions. Building on an existing architecture for
extractive explanations via hard attention, we add an adversarial layer which
scans the residual of the attention for remaining predictive signal. Motivated
by the important domain of detecting personal attacks in social media comments,
we additionally demonstrate the importance of manually setting a semantically
appropriate `default' behavior for the model by explicitly manipulating its
bias term. We develop a validation set of human-annotated personal attacks to
evaluate the impact of these changes.Comment: Accepted to EMNLP 2018 Code and data available at
https://github.com/shcarton/rcn
The Teaching and Learning of Lexical Chunks: A Comparison of Observe Hypothesise Experiment and Presentation Practice Production.
The focus of this study is the comparison of two teaching frameworks: Presentation Practice Production (PPP) and Observe Hypothesise Experiment (OHE) in the context of teaching twelve lexical chunks to two groups of twenty-one EAP students. An analysis of pre- and post-test scores demonstrated that both frameworks were successful in aiding students’ productive and receptive knowledge of the target language. The question as to whether one framework was more effective than the other in the context studied was answered negatively, since no statistically significant difference between the treatment types was found. The results suggest that both input and output oriented activities can aid the acquisition of chunks to the same extent and thus, perhaps, the choice between these frameworks may be more dependent on teaching and learning styles than upon their impact on the acquisition of formulaic language.
Key words: Observe Hypothesise Experiment, Presentation Practice Production, formulaic language, lexical chunks, productive knowledge, receptive knowledge, input oriented activities, output oriented activitie
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