68 research outputs found

    Concurrent Lexicalized Dependency Parsing: The ParseTalk Model

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    A grammar model for concurrent, object-oriented natural language parsing is introduced. Complete lexical distribution of grammatical knowledge is achieved building upon the head-oriented notions of valency and dependency, while inheritance mechanisms are used to capture lexical generalizations. The underlying concurrent computation model relies upon the actor paradigm. We consider message passing protocols for establishing dependency relations and ambiguity handling.Comment: 90kB, 7pages Postscrip

    Concurrent Lexicalized Dependency Parsing: A Behavioral View on ParseTalk Events

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    The behavioral specification of an object-oriented grammar model is considered. The model is based on full lexicalization, head-orientation via valency constraints and dependency relations, inheritance as a means for non-redundant lexicon specification, and concurrency of computation. The computation model relies upon the actor paradigm, with concurrency entering through asynchronous message passing between actors. In particular, we here elaborate on principles of how the global behavior of a lexically distributed grammar and its corresponding parser can be specified in terms of event type networks and event networks, resp.Comment: 68kB, 5pages Postscrip

    Sprachbildung in der Lehramtsausbildung Mathematik

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    Wie lassen sich Fachdidaktik und Sprachbildung im Lehramtsstudium so verknüpfen, dass zukünftige Mathematiklehrkräfte optimal auf sprachbewussten Fachunterricht vorbereitet werden? Dieser Frage geht dieses Open Access Buch aus interdisziplinärer Perspektive nach – fachlich fundiert, forschungsorientiert und anschaulich: Die vorgestellten Leitideen und Design-Prinzipien für eine sprachbewusste Hochschullehre bilden den konzeptionellen Rahmen, der auch für die Weiterentwicklung eigener Lehrveranstaltungen genutzt werden kann. An zahlreichen empirischen Beispielen aus Schule und Hochschule werden Synergien zwischen Mathematikdidaktik und Sprachbildung aufgezeigt und Vorschläge für die konkrete Ausgestaltung der Hochschullehre gemacht. Einen besonderen Schwerpunkt bildet das Forschende Lernen in Praxisphasen an der Schnittstelle von Fach und Sprache. Impulse aus anderen Fachdidaktiken (Informatik, Chemie) eröffnen Transfermöglichkeiten. Mit seinen vielfältigen Einblicken in das hochaktuelle Thema Sprachbildung im Fachunterricht als Gegenstand einer sprachbewussten Hochschullehre ist das Buch für Hochschuldozierende und Studierende in der Lehramtsausbildung Mathematik gleichermaßen von Interesse. Das Buch bietet Konzepte für die Verknüpfung von Mathematikdidaktik und Sprachbildung in der Lehrkräfteausbildung Mathematik, ist interdisziplinär und forschungsorientiert, ist geeignet für Hochschuldozierende und Studierende. Das Buch ist unter den Bedingungen der Creative Commons Attribution 4.0 International License über SpringerLink (link.springer.com) frei zugänglich

    Sprachbildung in der Lehramtsausbildung Mathematik

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    Distributed cognitive systems : proceedings of the VKS'97 Workshop

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    To intensify the contacts between cognitive scientists and researchers in Distributed Artificial Intelligence, we have organised the 1st German workshop on Distributed Cognitive Systems, VKS'97, in association with the 21st German Conference on Artificial Intelligence, KI'97. The workshop has been held in Freiburg on the 11th of September 1997. This document comprises the contributions of various research fields under the aspect of social, intelligent agents and gives an impression of future, inter-disciplinary collaboration

    Safety Aspects of Supporting Apron Controllers with Automatic Speech Recognition and Understanding Integrated into an Advanced Surface Movement Guidance and Control System

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    The information air traffic controllers (ATCos) communicate via radio telephony is valuable for digital assistants to provide additional safety. Yet, ATCos have to enter this information manually. Assistant-based speech recognition (ABSR) has proven to be a lightweight technology that automatically extracts and successfully feeds the content of ATC communication into digital systems without additional human effort. This article explains how ABSR can be integrated into an advanced surface movement guidance and control system (A-SMGCS). The described validations were performed in the complex apron simulation training environment of Frankfurt Airport with 14 apron controllers in a human-in-the-loop simulation in summer 2022. The integration significantly reduces the workload of controllers and increases safety as well as overall performance. Based on a word error rate of 3.1%, the command recognition rate was 91.8% with a callsign recognition rate of 97.4%. This performance was enabled by the integration of A-SMGCS and ABSR: the command recognition rate improves by more than 15% absolute by considering A-SMGCS data in ABSR

    Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

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    A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

    Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC)3 Project

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    Mechanisms behind the phenomenon of Arctic amplification are widely discussed. To contribute to this debate, the (AC)3 project has been established in 2016. It comprises modeling and data analysis efforts as well as observational elements. The project has assembled a wealth of ground-based, airborne, ship-borne, and satellite data of physical, chemical, and meteorological properties of the Arctic atmosphere, cryosphere, and upper ocean that are available for the Arctic climate research community. Short-term changes and indications of long-term trends in Arctic climate parameters have been detected using existing and new data

    Measurements of top-quark pair differential cross-sections in the eμe\mu channel in pppp collisions at s=13\sqrt{s} = 13 TeV using the ATLAS detector

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    Measurement of the W boson polarisation in ttˉt\bar{t} events from pp collisions at s\sqrt{s} = 8 TeV in the lepton + jets channel with ATLAS

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