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Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics: System Demonstrations
Miriam Butt | Sarmad Hussain

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WebAnno: A Flexible, Web-based and Visually Supported System for Distributed Annotations
Seid Muhie Yimam | Iryna Gurevych | Richard Eckart de Castilho | Chris Biemann

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A Stacking-based Approach to Twitter User Geolocation Prediction
Bo Han | Paul Cook | Timothy Baldwin

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An Open Source Toolkit for Quantitative Historical Linguistics
Johann-Mattis List | Steven Moran

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AnnoMarket: An Open Cloud Platform for NLP
Valentin Tablan | Kalina Bontcheva | Ian Roberts | Hamish Cunningham | Marin Dimitrov

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Detecting Event-Related Links and Sentiments from Social Media Texts
Alexandra Balahur | Hristo Tanev

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DISSECT - DIStributional SEmantics Composition Toolkit
Georgiana Dinu | Nghia The Pham | Marco Baroni

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DKPro WSD: A Generalized UIMA-based Framework for Word Sense Disambiguation
Tristan Miller | Nicolai Erbs | Hans-Peter Zorn | Torsten Zesch | Iryna Gurevych

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Extending an interoperable platform to facilitate the creation of multilingual and multimodal NLP applications
Georgios Kontonatsios | Paul Thompson | Riza Theresa Batista-Navarro | Claudiu Mihăilă | Ioannis Korkontzelos | Sophia Ananiadou

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FudanNLP: A Toolkit for Chinese Natural Language Processing
Xipeng Qiu | Qi Zhang | Xuanjing Huang

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ICARUS – An Extensible Graphical Search Tool for Dependency Treebanks
Markus Gärtner | Gregor Thiele | Wolfgang Seeker | Anders Björkelund | Jonas Kuhn

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Meet EDGAR, a tutoring agent at MONSERRATE
Pedro Fialho | Luísa Coheur | Sérgio Curto | Pedro Cláudio | Ângela Costa | Alberto Abad | Hugo Meinedo | Isabel Trancoso

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PAL: A Chatterbot System for Answering Domain-specific Questions
Yuanchao Liu | Ming Liu | Xiaolong Wang | Limin Wang | Jingjing Li

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PhonMatrix: Visualizing co-occurrence constraints of sounds
Thomas Mayer | Christian Rohrdantz

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QuEst - A translation quality estimation framework
Lucia Specia | Kashif Shah | Jose G.C. de Souza | Trevor Cohn

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SORT: An Interactive Source-Rewriting Tool for Improved Translation
Shachar Mirkin | Sriram Venkatapathy | Marc Dymetman | Ioan Calapodescu

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Travatar: A Forest-to-String Machine Translation Engine based on Tree Transducers
Graham Neubig

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PLIS: a Probabilistic Lexical Inference System
Eyal Shnarch | Erel Segal-haLevi | Jacob Goldberger | Ido Dagan

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A Java Framework for Multilingual Definition and Hypernym Extraction
Stefano Faralli | Roberto Navigli

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A Visual Analytics System for Cluster Exploration
Andreas Lamprecht | Annette Hautli | Christian Rohrdantz | Tina Bögel

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Development and Analysis of NLP Pipelines in Argo
Rafal Rak | Andrew Rowley | Jacob Carter | Sophia Ananiadou

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DKPro Similarity: An Open Source Framework for Text Similarity
Daniel Bär | Torsten Zesch | Iryna Gurevych

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Fluid Construction Grammar for Historical and Evolutionary Linguistics
Pieter Wellens | Remi van Trijp | Katrien Beuls | Luc Steels

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HYENA-live: Fine-Grained Online Entity Type Classification from Natural-language Text
Mohamed Amir Yosef | Sandro Bauer | Johannes Hoffart | Marc Spaniol | Gerhard Weikum

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Linggle: a Web-scale Linguistic Search Engine for Words in Context
Joanne Boisson | Ting-Hui Kao | Jian-Cheng Wu | Tzu-Hsi Yen | Jason S. Chang

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ParaQuery: Making Sense of Paraphrase Collections
Lili Kotlerman | Nitin Madnani | Aoife Cahill

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PATHS: A System for Accessing Cultural Heritage Collections
Eneko Agirre | Nikolaos Aletras | Paul Clough | Samuel Fernando | Paula Goodale | Mark Hall | Aitor Soroa | Mark Stevenson

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Propminer: A Workflow for Interactive Information Extraction and Exploration using Dependency Trees
Alan Akbik | Oresti Konomi | Michail Melnikov

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SEMILAR: The Semantic Similarity Toolkit
Vasile Rus | Mihai Lintean | Rajendra Banjade | Nobal Niraula | Dan Stefanescu

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Tag2Blog: Narrative Generation from Satellite Tag Data
Kapila Ponnamperuma | Advaith Siddharthan | Cheng Zeng | Chris Mellish | René van der Wal

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TransDoop: A Map-Reduce based Crowdsourced Translation for Complex Domain
Anoop Kunchukuttan | Rajen Chatterjee | Shourya Roy | Abhijit Mishra | Pushpak Bhattacharyya

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tSEARCH: Flexible and Fast Search over Automatic Translations for Improved Quality/Error Analysis
Meritxell Gonzàlez | Laura Mascarell | Lluís Màrquez

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VSEM: An open library for visual semantics representation
Elia Bruni | Ulisse Bordignon | Adam Liska | Jasper Uijlings | Irina Sergienya

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Docent: A Document-Level Decoder for Phrase-Based Statistical Machine Translation
Christian Hardmeier | Sara Stymne | Jörg Tiedemann | Joakim Nivre

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Mr. MIRA: Open-Source Large-Margin Structured Learning on MapReduce
Vladimir Eidelman | Ke Wu | Ferhan Ture | Philip Resnik | Jimmy Lin