January 24, 2020

1502 words 8 mins read

Paper Group NANR 109

Paper Group NANR 109

Amazon at MRP 2019: Parsing Meaning Representations with Lexical and Phrasal Anchoring. How do we feel when a robot dies? Emotions expressed on Twitter before and after hitchBOT’s destruction. Automata Guided Skill Composition. A Character Level Convolutional BiLSTM for Arabic Dialect Identification. Is Word Segmentation Child’s Play in All Languag …

Amazon at MRP 2019: Parsing Meaning Representations with Lexical and Phrasal Anchoring

Title Amazon at MRP 2019: Parsing Meaning Representations with Lexical and Phrasal Anchoring
Authors Jie Cao, Yi Zhang, Adel Youssef, Vivek Srikumar
Abstract This paper describes the system submission of our team Amazon to the shared task on Cross Framework Meaning Representation Parsing (MRP) at the 2019 Conference for Computational Language Learning (CoNLL). Via extensive analysis of implicit alignments in AMR, we recategorize five meaning representations (MRs) into two classes: Lexical- Anchoring and Phrasal-Anchoring. Then we propose a unified graph-based parsing framework for the lexical-anchoring MRs, and a phrase-structure parsing for one of the phrasal- anchoring MRs, UCCA. Our system submission ranked 1st in the AMR subtask, and later improvements show promising results on other frameworks as well.
Tasks
Published 2019-11-01
URL https://www.aclweb.org/anthology/K19-2013/
PDF https://www.aclweb.org/anthology/K19-2013
PWC https://paperswithcode.com/paper/amazon-at-mrp-2019-parsing-meaning
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Framework

How do we feel when a robot dies? Emotions expressed on Twitter before and after hitchBOT’s destruction

Title How do we feel when a robot dies? Emotions expressed on Twitter before and after hitchBOT’s destruction
Authors Kathleen C. Fraser, Frauke Zeller, David Harris Smith, Saif Mohammad, Frank Rudzicz
Abstract In 2014, a chatty but immobile robot called hitchBOT set out to hitchhike across Canada. It similarly made its way across Germany and the Netherlands, and had begun a trip across the USA when it was destroyed by vandals. In this work, we analyze the emotions and sentiments associated with words in tweets posted before and after hitchBOT{'}s destruction to answer two questions: Were there any differences in the emotions expressed across the different countries visited by hitchBOT? And how did the public react to the demise of hitchBOT? Our analyses indicate that while there were few cross-cultural differences in sentiment towards hitchBOT, there was a significant negative emotional reaction to its destruction, suggesting that people had formed an emotional connection with hitchBOT and perceived its destruction as morally wrong. We discuss potential implications of anthropomorphism and emotional attachment to robots from the perspective of robot ethics.
Tasks
Published 2019-06-01
URL https://www.aclweb.org/anthology/W19-1308/
PDF https://www.aclweb.org/anthology/W19-1308
PWC https://paperswithcode.com/paper/how-do-we-feel-when-a-robot-dies-emotions
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Framework

Automata Guided Skill Composition

Title Automata Guided Skill Composition
Authors Xiao Li, Yao Ma, Calin Belta
Abstract Skills learned through (deep) reinforcement learning often generalizes poorly across tasks and re-training is necessary when presented with a new task. We present a framework that combines techniques in formal methods with reinforcement learning (RL) that allows for the convenient specification of complex temporal dependent tasks with logical expressions and construction of new skills from existing ones with no additional exploration. We provide theoretical results for our composition technique and evaluate on a simple grid world simulation as well as a robotic manipulation task.
Tasks
Published 2019-05-01
URL https://openreview.net/forum?id=HkfwpiA9KX
PDF https://openreview.net/pdf?id=HkfwpiA9KX
PWC https://paperswithcode.com/paper/automata-guided-skill-composition
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Framework

A Character Level Convolutional BiLSTM for Arabic Dialect Identification

Title A Character Level Convolutional BiLSTM for Arabic Dialect Identification
Authors Mohamed Elaraby, Ahmed Zahran
Abstract In this paper, we describe CU-RAISA teamcontribution to the 2019Madar shared task2, which focused on Twitter User fine-grained dialect identification.Among par-ticipating teams, our system ranked the4th(with 61.54{%}) F1-Macro measure.Our sys-tem is trained using a character level convo-lutional bidirectional long-short-term memorynetwork trained on 2k users{'} data. We showthat training on concatenated user tweets asinput is further superior to training on usertweets separately and assign user{'}s label on themode of user{'}s tweets{'} predictions.
Tasks
Published 2019-08-01
URL https://www.aclweb.org/anthology/W19-4636/
PDF https://www.aclweb.org/anthology/W19-4636
PWC https://paperswithcode.com/paper/a-character-level-convolutional-bilstm-for
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Is Word Segmentation Child’s Play in All Languages?

Title Is Word Segmentation Child’s Play in All Languages?
Authors Georgia R. Loukatou, Steven Moran, Damian Blasi, Sabine Stoll, Alej Cristia, rina
Abstract When learning language, infants need to break down the flow of input speech into minimal word-like units, a process best described as unsupervised bottom-up segmentation. Proposed strategies include several segmentation algorithms, but only cross-linguistically robust algorithms could be plausible candidates for human word learning, since infants have no initial knowledge of the ambient language. We report on the stability in performance of 11 conceptually diverse algorithms on a selection of 8 typologically distinct languages. The results consist evidence that some segmentation algorithms are cross-linguistically valid, thus could be considered as potential strategies employed by all infants.
Tasks
Published 2019-07-01
URL https://www.aclweb.org/anthology/P19-1383/
PDF https://www.aclweb.org/anthology/P19-1383
PWC https://paperswithcode.com/paper/is-word-segmentation-childs-play-in-all
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Framework

Better OOV Translation with Bilingual Terminology Mining

Title Better OOV Translation with Bilingual Terminology Mining
Authors Matthias Huck, Viktor Hangya, Alex Fraser, er
Abstract Unseen words, also called out-of-vocabulary words (OOVs), are difficult for machine translation. In neural machine translation, byte-pair encoding can be used to represent OOVs, but they are still often incorrectly translated. We improve the translation of OOVs in NMT using easy-to-obtain monolingual data. We look for OOVs in the text to be translated and translate them using simple-to-construct bilingual word embeddings (BWEs). In our MT experiments we take the 5-best candidates, which is motivated by intrinsic mining experiments. Using all five of the proposed target language words as queries we mine target-language sentences. We then back-translate, forcing the back-translation of each of the five proposed target-language OOV-translation-candidates to be the original source-language OOV. We show that by using this synthetic data to fine-tune our system the translation of OOVs can be dramatically improved. In our experiments we use a system trained on Europarl and mine sentences containing medical terms from monolingual data.
Tasks Machine Translation, Word Embeddings
Published 2019-07-01
URL https://www.aclweb.org/anthology/P19-1581/
PDF https://www.aclweb.org/anthology/P19-1581
PWC https://paperswithcode.com/paper/better-oov-translation-with-bilingual
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Framework

LEARNING GENERATIVE MODELS FOR DEMIXING OF STRUCTURED SIGNALS FROM THEIR SUPERPOSITION USING GANS

Title LEARNING GENERATIVE MODELS FOR DEMIXING OF STRUCTURED SIGNALS FROM THEIR SUPERPOSITION USING GANS
Authors Mohammadreza Soltani, Swayambhoo Jain, Abhinav V. Sambasivan
Abstract Recently, Generative Adversarial Networks (GANs) have emerged as a popular alternative for modeling complex high dimensional distributions. Most of the existing works implicitly assume that the clean samples from the target distribution are easily available. However, in many applications, this assumption is violated. In this paper, we consider the problem of learning GANs under the observation setting when the samples from target distribution are given by the superposition of two structured components. We propose two novel frameworks: denoising-GAN and demixing-GAN. The denoising-GAN assumes access to clean samples from the second component and try to learn the other distribution, whereas demixing-GAN learns the distribution of the components at the same time. Through comprehensive numerical experiments, we demonstrate that proposed frameworks can generate clean samples from unknown distributions, and provide competitive performance in tasks such as denoising, demixing, and compressive sensing.
Tasks Compressive Sensing, Denoising
Published 2019-05-01
URL https://openreview.net/forum?id=rkeqCoA5tX
PDF https://openreview.net/pdf?id=rkeqCoA5tX
PWC https://paperswithcode.com/paper/learning-generative-models-for-demixing-of
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Overview of AIWolfDial 2019 Shared Task: Contest of Automatic Dialog Agents to Play the Werewolf Game through Conversations

Title Overview of AIWolfDial 2019 Shared Task: Contest of Automatic Dialog Agents to Play the Werewolf Game through Conversations
Authors Yoshinobu Kano, Claus Aranha, Michimasa Inaba, Fujio Toriumi, Hirotaka Osawa, Daisuke Katagami, Takashi Otsuki, Issei Tsunoda, Shoji Nagayama, Dol{\c{c}}a Tellols, Yu Sugawara, Yohei Nakata
Abstract
Tasks
Published 2019-10-01
URL https://www.aclweb.org/anthology/W19-8301/
PDF https://www.aclweb.org/anthology/W19-8301
PWC https://paperswithcode.com/paper/overview-of-aiwolfdial-2019-shared-task
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Framework

An ELMo-inspired approach to SemDeep-5’s Word-in-Context task

Title An ELMo-inspired approach to SemDeep-5’s Word-in-Context task
Authors Alan Ansell, Felipe Bravo-Marquez, Bernhard Pfahringer
Abstract
Tasks
Published 2019-08-01
URL https://www.aclweb.org/anthology/W19-5804/
PDF https://www.aclweb.org/anthology/W19-5804
PWC https://paperswithcode.com/paper/an-elmo-inspired-approach-to-semdeep-5s-word
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Framework

LIMSI-MULTISEM at the IJCAI SemDeep-5 WiC Challenge: Context Representations for Word Usage Similarity Estimation

Title LIMSI-MULTISEM at the IJCAI SemDeep-5 WiC Challenge: Context Representations for Word Usage Similarity Estimation
Authors Aina Gar{'\i} Soler, Marianna Apidianaki, Alex Allauzen, re
Abstract
Tasks
Published 2019-08-01
URL https://www.aclweb.org/anthology/W19-5802/
PDF https://www.aclweb.org/anthology/W19-5802
PWC https://paperswithcode.com/paper/limsi-multisem-at-the-ijcai-semdeep-5-wic
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Framework

Are Talkative AI Agents More Likely to Win the Werewolf Game?

Title Are Talkative AI Agents More Likely to Win the Werewolf Game?
Authors Dol{\c{c}}a Tellols
Abstract
Tasks
Published 2019-10-01
URL https://www.aclweb.org/anthology/W19-8302/
PDF https://www.aclweb.org/anthology/W19-8302
PWC https://paperswithcode.com/paper/are-talkative-ai-agents-more-likely-to-win
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Framework

Strategies for an Autonomous Agent Playing the ``Werewolf game’’ as a Stealth Werewolf

Title Strategies for an Autonomous Agent Playing the ``Werewolf game’’ as a Stealth Werewolf |
Authors Shoji Nagayama, Jotaro Abe, Kosuke Oya, Kotaro Sakamoto, Hideyuki Shibuki, Tatsunori Mori, K, Noriko o
Abstract
Tasks
Published 2019-10-01
URL https://www.aclweb.org/anthology/W19-8305/
PDF https://www.aclweb.org/anthology/W19-8305
PWC https://paperswithcode.com/paper/strategies-for-an-autonomous-agent-playing
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Framework

A Survey of Explainable AI Terminology

Title A Survey of Explainable AI Terminology
Authors Miruna-Adriana Clinciu, Helen Hastie
Abstract
Tasks
Published 2019-01-01
URL https://www.aclweb.org/anthology/W19-8403/
PDF https://www.aclweb.org/anthology/W19-8403
PWC https://paperswithcode.com/paper/a-survey-of-explainable-ai-terminology
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Framework
Title Using hyperbolic large-margin classifiers for biological link prediction
Authors Asan Agibetov, Georg Dorffner, Matthias Samwald
Abstract
Tasks Link Prediction
Published 2019-08-01
URL https://www.aclweb.org/anthology/W19-5805/
PDF https://www.aclweb.org/anthology/W19-5805
PWC https://paperswithcode.com/paper/using-hyperbolic-large-margin-classifiers-for
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Framework

Universal Derivations Kickoff: A Collection of Harmonized Derivational Resources for Eleven Languages

Title Universal Derivations Kickoff: A Collection of Harmonized Derivational Resources for Eleven Languages
Authors Luk{'a}{\v{s}} Kyj{'a}nek, Zden{\v{e}}k {\v{Z}}abokrtsk{'y}, Magda {\v{S}}ev{\v{c}}{'\i}kov{'a}, Jon{'a}{\v{s}} Vidra
Abstract
Tasks
Published 2019-09-01
URL https://www.aclweb.org/anthology/W19-8512/
PDF https://www.aclweb.org/anthology/W19-8512
PWC https://paperswithcode.com/paper/universal-derivations-kickoff-a-collection-of
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