471,033 research outputs found

    A Dependency-Based Neural Network for Relation Classification

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    Previous research on relation classification has verified the effectiveness of using dependency shortest paths or subtrees. In this paper, we further explore how to make full use of the combination of these dependency information. We first propose a new structure, termed augmented dependency path (ADP), which is composed of the shortest dependency path between two entities and the subtrees attached to the shortest path. To exploit the semantic representation behind the ADP structure, we develop dependency-based neural networks (DepNN): a recursive neural network designed to model the subtrees, and a convolutional neural network to capture the most important features on the shortest path. Experiments on the SemEval-2010 dataset show that our proposed method achieves state-of-art results.Comment: This preprint is the full version of a short paper accepted in the annual meeting of the Association for Computational Linguistics (ACL) 2015 (Beijing, China

    Search and the Path-Dependency of Trade.

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    This paper investigates the implications of imperfect information and matching/searching for international trade theory. I develop an illustrative model where firms find such partners by a search through successive matches. The consequences include linking today's import demand patterns to past changes in costs, protection and interest rates. Today's policy decisions will likewise affect future trade. Trade diversion from a preferential trading agreement may well persist as informational diversion well after the preferential agreement has been scrapped. This has important implications for the timing of trade liberalisation.Trade, Protection, Search, Outsourcing.

    Economics of Qwerty and Fgğıod

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    After summarizing the path dependency concept which began with the article named as “Clio and the Economics of Qwerty” written by Paul David in 1985, I will associate the path dependency with the reasons of why is F keyboard not used widely instead of Q keyboards, even though F keyboards were tried to be mandatory by the state in our country

    SAT Solving for Argument Filterings

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    This paper introduces a propositional encoding for lexicographic path orders in connection with dependency pairs. This facilitates the application of SAT solvers for termination analysis of term rewrite systems based on the dependency pair method. We address two main inter-related issues and encode them as satisfiability problems of propositional formulas that can be efficiently handled by SAT solving: (1) the combined search for a lexicographic path order together with an \emph{argument filtering} to orient a set of inequalities; and (2) how the choice of the argument filtering influences the set of inequalities that have to be oriented. We have implemented our contributions in the termination prover AProVE. Extensive experiments show that by our encoding and the application of SAT solvers one obtains speedups in orders of magnitude as well as increased termination proving power

    Innovation as a community-spanning process: strategies to handle path dependency.

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    In this paper, we further develop and apply the notions of path creation and path dependency during technological innovation processes. The process of technological innovation is portrayed as an activity of spanning boundaries between and across communities of practitioners. Communities of practice are characterised by shared beliefs, evaluation routines and artefacts. These beliefs, routines and artefacts create powerful path-dependencies that inhibit path-breaking innovations. Based on exploratory empirical research, a model on handling path-dependency during the creation of technological innovations is proposed.Processes; Strategy; Evaluation; Innovations; Model;

    Work organization and preferences dynamics

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    We present a model with intergenerational transmission of preferences providing a joint explanation of preference evolution and of work organization changes in a society. We focus on the preference for autonomy, defined as an individual's degree of initiative and the value they attach to self direction. We show that the economy has several steady states with different levels of worker autonomy and of the degree of coercion in the work place. The Industrial Revolution and the recent return of flexible forms of organization enable us to illustrate the existence of organizational path dependency. Indeed, the current technological shocks, impacting on the long-run distribution of preferences, modify the future possibilities of adoption of new organizational forms.Cultural transmission, work organization, industrial revolution, historical path dependency.
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