26,093 research outputs found
Methodological Individualism, the We-mode, and Team Reasoning
Raimo Tuomela is one of the pioneers of social action theory and has done as much as anyone over the last thirty years to advance the study of social action and collective intentionality. Social Ontology: Collective Intentionality and Group Agents (2013) presents the latest version of his theory and applications to a range of important social phenomena. The book covers so much ground, and so many important topics in detailed discussions, that it would impossible in a short space to do it even partial justice. In this brief note, I will concentrate on a single, though important, theme in the book, namely, the claim that we must give up methodological individualism in the social sciences and embrace instead irreducibly group notions. I wish to defend methodological individualism as up to the theoretical tasks of the social sciences while acknowledging what is distinctive about the social world and collective intentional action.
Tuomela frames the question of the adequacy of methodological individualism in terms of a contrast between what he calls the I-mode and the we-mode. He argues that we-mode phenomena are not reducible to I-mode phenomena, and concludes that we must reject methodological individualism. I will argue that the irreducibility of the we-mode to the I-mode, given how the contrast is set up, does not entail the rejection of methodological individualism. In addition, I will argue that the three conditions that Tuomela places on genuine we-mode activities, the group reason, collectivity, and collective commitment conditions, if they are understood in a way that does not beg the question, can plausibly be satisfied by a reductive account. Finally, I will argue that the specific considerations advanced in the book do not give us reason to think that a reductive account cannot be adequate to the descriptive and explanatory requirements of a theory of the social worl
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Enterprise application reuse: Semantic discovery of business grid services
Web services have emerged as a prominent paradigm for the development of distributed software systems as they provide the potential for software to be modularized in a way that functionality can be described, discovered and deployed in a platform independent manner over a network (e.g., intranets, extranets and the Internet). This paper examines an extension of this paradigm to encompass ‘Grid Services’, which enables software capabilities to be recast with an operational focus and support a heterogeneous mix of business software and data, termed a Business Grid - "the grid of semantic services". The current industrial representation of services is predominantly syntactic however, lacking the fundamental semantic underpinnings required to fulfill the goals of any semantically-oriented Grid. Consequently, the use of semantic technology in support of business software heterogeneity is investigated as a likely tool to support a diverse and distributed software inventory and user. Service discovery architecture is therefore developed that is (a) distributed in form, (2) supports distributed service knowledge and (3) automatically extends service knowledge (as greater descriptive precision is inferred from the operating application system). This discovery engine is used to execute several real-word scenarios in order to develop and test a framework for engineering such grid service knowledge. The examples presented comprise software components taken from a group of Investment Banking systems. Resulting from the research is a framework for engineering servic
A homogeneous decomposition theorem for valuations on convex functions
The existence of a homogeneous decomposition for continuous and
epi-translation invariant valuations on super-coercive functions is
established. Continuous and epi-translation invariant valuations that are
epi-homogeneous of degree are classified. By duality, corresponding results
are obtained for valuations on finite-valued convex functions.Comment: 16 page
Majorana Fermions, Exact Mapping between Quantum Impurity Fixed Points with four bulk Fermion species, and Solution of the ``Unitarity Puzzle''
Several Quantum Impurity problems with four flavors of bulk fermions have
zero temperature fixed points that show non fermi liquid behavior. They include
the two channel Kondo effect, the two impurity Kondo model, and the fixed point
occurring in the four flavor Callan-Rubakov effect. We provide a unified
description which exploits the SO(8) symmetry of the bulk fermions. This leads
to a mapping between correlation functions of the different models.
Furthermore, we show that the two impurity Kondo fixed point and the
Callan-Rubakov fixed point are the same theory. All these models have the
puzzling property that the S matrix for scattering of fermions off the impurity
seems to be non unitary. We resolve this paradox showing that the fermions
scatter into collective excitations which fit into the spinor representation of
SO(8). Enlarging the Hilbert space to include those we find simple linear
boundary conditions. Using these boundary conditions it is straightforward to
recover all partition functions, boundary states and correlation functions of
these models.Comment: 19 pages, latex, revtex
A COST-EFFECTIVENESS ANALYSIS OF ACTIONS TO REDUCE STREAM TEMPERATURE AT THE WATERSHED SCALE
A cost-effectiveness frontier is developed to compare economic and environmental tradeoffs associated with planting a riparian buffer to reduce stream temperature at the watershed scale. Results indicate that total welfare change and its distribution among sectors vary between scenarios. The policy selected may differ if riparian plantings are voluntary rather than mandatory.Environmental Economics and Policy, Land Economics/Use,
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