1,609 research outputs found
A Linguistic Analysis of Group Support Systems Interactions for Uncovering Social Realities of Organizations
Language represents the medium through which we encounter reality and can be viewed as a human social action (Holtgraves 2002). In this study, we apply speech act theory to analyze the data collected in a study by Trauth and Jessup (2000) and demonstrate that GSS can be an effective tool for diagnosing the social life of an organization. Our linguistic analysis confirms previous research findings that both the topic and the group size influence the pattern of discussion, especially when issues are threatening. In addition, when GSS is applied to such an issue, linguistic analysis helps to uncover hidden defensive speech routines. Identifying the speech acts of GSS discussions may therefore complement positivist and interpretive analysis by examining if participants’ engagement is superficial or profound, if consensus is reached or blocked, and if certain speech acts lead to dysfunctional organizational learning. Taken together with Trauth and Jessup (2000)’s study, we show that social realities revealed in GSS discussions are multi-dimensional and that, by adopting a different research stance to better understand the role of GSS, a variety of research benefits may be derived
Impacts of Two Types of El Niño and La Niña Events on Typhoon Activity
The HadISST (Hadley Centre Sea Ice and Sea Surface Temperature) dataset is used to define the years of El Niño, El Niño Modoki, and La Niña events and to find out the impacts of these events on typhoon activity. The results show that the formation positions of typhoon are farther eastward moving in El Niño years than in La Niña years and much further eastward in El Niño Modoki years. The lifetime and the distance of movement are longer, and the intensity of typhoons is stronger in El Niño and in El Niño Modoki years than in La Niña years. The Accumulated Cyclone Energy of typhoon is highly correlated with the Oceanic Niño Index with a correlation coefficient of 0.79. We also find that the typhoons anomalously decrease during El Niño years but increase during El Niño Modoki years. Besides, there are two types of El Niño Modoki, I and II. The intensity of typhoon in El Niño Modoki I years is stronger than in El Niño Modoki II years. Furthermore, the centroid position of the Western Pacific Warm Pool is strongly related to the area of typhoon formation with a correlation coefficient of 0.95
Retraction and Generalized Extension of Computing with Words
Fuzzy automata, whose input alphabet is a set of numbers or symbols, are a
formal model of computing with values. Motivated by Zadeh's paradigm of
computing with words rather than numbers, Ying proposed a kind of fuzzy
automata, whose input alphabet consists of all fuzzy subsets of a set of
symbols, as a formal model of computing with all words. In this paper, we
introduce a somewhat general formal model of computing with (some special)
words. The new features of the model are that the input alphabet only comprises
some (not necessarily all) fuzzy subsets of a set of symbols and the fuzzy
transition function can be specified arbitrarily. By employing the methodology
of fuzzy control, we establish a retraction principle from computing with words
to computing with values for handling crisp inputs and a generalized extension
principle from computing with words to computing with all words for handling
fuzzy inputs. These principles show that computing with values and computing
with all words can be respectively implemented by computing with words. Some
algebraic properties of retractions and generalized extensions are addressed as
well.Comment: 13 double column pages; 3 figures; to be published in the IEEE
Transactions on Fuzzy System
DEXON: A Highly Scalable, Decentralized DAG-Based Consensus Algorithm
A blockchain system is a replicated state machine that must be fault
tolerant. When designing a blockchain system, there is usually a trade-off
between decentralization, scalability, and security. In this paper, we propose
a novel blockchain system, DEXON, which achieves high scalability while
remaining decentralized and robust in the real-world environment. We have two
main contributions. First, we present a highly scalable sharding framework for
blockchain. This framework takes an arbitrary number of single chains and
transforms them into the \textit{blocklattice} data structure, enabling
\textit{high scalability} and \textit{low transaction confirmation latency}
with asymptotically optimal communication overhead. Second, we propose a
single-chain protocol based on our novel verifiable random function and a new
Byzantine agreement that achieves high decentralization and low latency
(Benzonitrile-κN)chlorido[hydridoÂtris(pyrazol-1-yl-κN 2)borato](triphenylÂphosphine-κP)ruthenium(II) ethanol solvate. Corrigendum
Corrigendum to Acta Cryst. (2009), E65, m438
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