Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations

Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor 2020-07 Association for Computational Linguistics Online text conference publication acl-2020-association-linguistics https://aclanthology.org/2020.acl-demos.0/ Xiaomingbot: A Multilingual Robot News Reporter Runxin Xu author Jun Cao author Mingxuan Wang author Jiaze Chen author Hao Zhou author Ying Zeng author Yuping Wang author Li Chen author Xiang Yin author Xijin Zhang author Songcheng Jiang author Yuxuan Wang author Lei Li author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication xu-etal-2020-xiaomingbot 10.18653/v1/2020.acl-demos.1 https://aclanthology.org/2020.acl-demos.1/ 2020-07 1 8 TextBrewer: An Open-Source Knowledge Distillation Toolkit for Natural Language Processing Ziqing Yang author Yiming Cui author Zhipeng Chen author Wanxiang Che author Ting Liu author Shijin Wang author Guoping Hu author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication yang-etal-2020-textbrewer 10.18653/v1/2020.acl-demos.2 https://aclanthology.org/2020.acl-demos.2/ 2020-07 9 16 Syntactic Search by Example Micah Shlain author Hillel Taub-Tabib author Shoval Sadde author Yoav Goldberg author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication shlain-etal-2020-syntactic 10.18653/v1/2020.acl-demos.3 https://aclanthology.org/2020.acl-demos.3/ 2020-07 17 23 Tabouid: a Wikipedia-based word guessing game Timothée Bernard author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication bernard-2020-tabouid 10.18653/v1/2020.acl-demos.4 https://aclanthology.org/2020.acl-demos.4/ 2020-07 24 29 Talk to Papers: Bringing Neural Question Answering to Academic Search Tiancheng Zhao author Kyusong Lee author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication zhao-lee-2020-talk 10.18653/v1/2020.acl-demos.5 https://aclanthology.org/2020.acl-demos.5/ 2020-07 30 36 Personalized PageRank with Syntagmatic Information for Multilingual Word Sense Disambiguation Federico Scozzafava author Marco Maru author Fabrizio Brignone author Giovanni Torrisi author Roberto Navigli author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication scozzafava-etal-2020-personalized 10.18653/v1/2020.acl-demos.6 https://aclanthology.org/2020.acl-demos.6/ 2020-07 37 46 pyBART: Evidence-based Syntactic Transformations for IE Aryeh Tiktinsky author Yoav Goldberg author Reut Tsarfaty author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication tiktinsky-etal-2020-pybart 10.18653/v1/2020.acl-demos.7 https://aclanthology.org/2020.acl-demos.7/ 2020-07 47 55 EVIDENCEMINER: Textual Evidence Discovery for Life Sciences Xuan Wang author Yingjun Guan author Weili Liu author Aabhas Chauhan author Enyi Jiang author Qi Li author David Liem author Dibakar Sigdel author John Caufield author Peipei Ping author Jiawei Han author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication wang-etal-2020-evidenceminer 10.18653/v1/2020.acl-demos.8 https://aclanthology.org/2020.acl-demos.8/ 2020-07 56 62 Trialstreamer: Mapping and Browsing Medical Evidence in Real-Time Benjamin Nye author Ani Nenkova author Iain Marshall author Byron C Wallace author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication nye-etal-2020-trialstreamer 10.18653/v1/2020.acl-demos.9 https://aclanthology.org/2020.acl-demos.9/ 2020-07 63 69 SyntaxGym: An Online Platform for Targeted Evaluation of Language Models Jon Gauthier author Jennifer Hu author Ethan Wilcox author Peng Qian author Roger Levy author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication gauthier-etal-2020-syntaxgym 10.18653/v1/2020.acl-demos.10 https://aclanthology.org/2020.acl-demos.10/ 2020-07 70 76 GAIA: A Fine-grained Multimedia Knowledge Extraction System Manling Li author Alireza Zareian author Ying Lin author Xiaoman Pan author Spencer Whitehead author Brian Chen author Bo Wu author Heng Ji author Shih-Fu Chang author Clare Voss author Daniel Napierski author Marjorie Freedman author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication li-etal-2020-gaia 10.18653/v1/2020.acl-demos.11 https://aclanthology.org/2020.acl-demos.11/ 2020-07 77 86 Multilingual Universal Sentence Encoder for Semantic Retrieval Yinfei Yang author Daniel Cer author Amin Ahmad author Mandy Guo author Jax Law author Noah Constant author Gustavo Hernandez Abrego author Steve Yuan author Chris Tar author Yun-hsuan Sung author Brian Strope author Ray Kurzweil author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication yang-etal-2020-multilingual 10.18653/v1/2020.acl-demos.12 https://aclanthology.org/2020.acl-demos.12/ 2020-07 87 94 BENTO: A Visual Platform for Building Clinical NLP Pipelines Based on CodaLab Yonghao Jin author Fei Li author Hong Yu author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication jin-etal-2020-bento 10.18653/v1/2020.acl-demos.13 https://aclanthology.org/2020.acl-demos.13/ 2020-07 95 100 Stanza: A Python Natural Language Processing Toolkit for Many Human Languages Peng Qi author Yuhao Zhang author Yuhui Zhang author Jason Bolton author Christopher D Manning author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication qi-etal-2020-stanza 10.18653/v1/2020.acl-demos.14 https://aclanthology.org/2020.acl-demos.14/ 2020-07 101 108 jiant: A Software Toolkit for Research on General-Purpose Text Understanding Models Yada Pruksachatkun author Phil Yeres author Haokun Liu author Jason Phang author Phu Mon Htut author Alex Wang author Ian Tenney author Samuel R Bowman author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication pruksachatkun-etal-2020-jiant 10.18653/v1/2020.acl-demos.15 https://aclanthology.org/2020.acl-demos.15/ 2020-07 109 117 The Microsoft Toolkit of Multi-Task Deep Neural Networks for Natural Language Understanding Xiaodong Liu author Yu Wang author Jianshu Ji author Hao Cheng author Xueyun Zhu author Emmanuel Awa author Pengcheng He author Weizhu Chen author Hoifung Poon author Guihong Cao author Jianfeng Gao author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication liu-etal-2020-microsoft 10.18653/v1/2020.acl-demos.16 https://aclanthology.org/2020.acl-demos.16/ 2020-07 118 126 LinggleWrite: a Coaching System for Essay Writing Chung-Ting Tsai author Jhih-Jie Chen author Ching-Yu Yang author Jason S Chang author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication tsai-etal-2020-lingglewrite 10.18653/v1/2020.acl-demos.17 https://aclanthology.org/2020.acl-demos.17/ 2020-07 127 133 CLIReval: Evaluating Machine Translation as a Cross-Lingual Information Retrieval Task Shuo Sun author Suzanna Sia author Kevin Duh author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication sun-etal-2020-clireval 10.18653/v1/2020.acl-demos.18 https://aclanthology.org/2020.acl-demos.18/ 2020-07 134 141 ConvLab-2: An Open-Source Toolkit for Building, Evaluating, and Diagnosing Dialogue Systems Qi Zhu author Zheng Zhang author Yan Fang author Xiang Li author Ryuichi Takanobu author Jinchao Li author Baolin Peng author Jianfeng Gao author Xiaoyan Zhu author Minlie Huang author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication zhu-etal-2020-convlab 10.18653/v1/2020.acl-demos.19 https://aclanthology.org/2020.acl-demos.19/ 2020-07 142 149 OpusFilter: A Configurable Parallel Corpus Filtering Toolbox Mikko Aulamo author Sami Virpioja author Jörg Tiedemann author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication aulamo-etal-2020-opusfilter 10.18653/v1/2020.acl-demos.20 https://aclanthology.org/2020.acl-demos.20/ 2020-07 150 156 Label Noise in Context Michael Desmond author Catherine Finegan-Dollak author Jeff Boston author Matt Arnold author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication desmond-etal-2020-label 10.18653/v1/2020.acl-demos.21 https://aclanthology.org/2020.acl-demos.21/ 2020-07 157 186 exBERT: A Visual Analysis Tool to Explore Learned Representations in Transformer Models Benjamin Hoover author Hendrik Strobelt author Sebastian Gehrmann author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication hoover-etal-2020-exbert 10.18653/v1/2020.acl-demos.22 https://aclanthology.org/2020.acl-demos.22/ 2020-07 187 196 Nakdan: Professional Hebrew Diacritizer Avi Shmidman author Shaltiel Shmidman author Moshe Koppel author Yoav Goldberg author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication shmidman-etal-2020-nakdan 10.18653/v1/2020.acl-demos.23 https://aclanthology.org/2020.acl-demos.23/ 2020-07 197 203 Photon: A Robust Cross-Domain Text-to-SQL System Jichuan Zeng author Xi Victoria Lin author Steven C.H. Hoi author Richard Socher author Caiming Xiong author Michael Lyu author Irwin King author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication zeng-etal-2020-photon 10.18653/v1/2020.acl-demos.24 https://aclanthology.org/2020.acl-demos.24/ 2020-07 204 214 Interactive Task Learning from GUI-Grounded Natural Language Instructions and Demonstrations Toby Jia-Jun Li author Tom Mitchell author Brad A Myers author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication li-etal-2020-interactive 10.18653/v1/2020.acl-demos.25 https://aclanthology.org/2020.acl-demos.25/ 2020-07 215 223 MixingBoard: a Knowledgeable Stylized Integrated Text Generation Platform Xiang Gao author Michel Galley author Bill Dolan author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication gao-etal-2020-mixingboard 10.18653/v1/2020.acl-demos.26 https://aclanthology.org/2020.acl-demos.26/ 2020-07 224 231 NLP Scholar: An Interactive Visual Explorer for Natural Language Processing Literature Saif M Mohammad author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication mohammad-2020-nlp-scholar 10.18653/v1/2020.acl-demos.27 https://aclanthology.org/2020.acl-demos.27/ 2020-07 232 255 Stimulating Creativity with FunLines: A Case Study of Humor Generation in Headlines Nabil Hossain author John Krumm author Tanvir Sajed author Henry Kautz author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication hossain-etal-2020-stimulating 10.18653/v1/2020.acl-demos.28 https://aclanthology.org/2020.acl-demos.28/ 2020-07 256 262 Usnea: An Authorship Tool for Interactive Fiction using Retrieval Based Semantic Parsing Ben Swanson author Boris Smus author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication swanson-smus-2020-usnea 10.18653/v1/2020.acl-demos.29 https://aclanthology.org/2020.acl-demos.29/ 2020-07 263 269 DIALOGPT : Large-Scale Generative Pre-training for Conversational Response Generation Yizhe Zhang author Siqi Sun author Michel Galley author Yen-Chun Chen author Chris Brockett author Xiang Gao author Jianfeng Gao author Jingjing Liu author Bill Dolan author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication zhang-etal-2020-dialogpt 10.18653/v1/2020.acl-demos.30 https://aclanthology.org/2020.acl-demos.30/ 2020-07 270 278 ADVISER: A Toolkit for Developing Multi-modal, Multi-domain and Socially-engaged Conversational Agents Chia-Yu Li author Daniel Ortega author Dirk Väth author Florian Lux author Lindsey Vanderlyn author Maximilian Schmidt author Michael Neumann author Moritz Völkel author Pavel Denisov author Sabrina Jenne author Zorica Kacarevic author Ngoc Thang Vu author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication li-etal-2020-adviser 10.18653/v1/2020.acl-demos.31 https://aclanthology.org/2020.acl-demos.31/ 2020-07 279 286 Prta: A System to Support the Analysis of Propaganda Techniques in the News Giovanni Da San Martino author Shaden Shaar author Yifan Zhang author Seunghak Yu author Alberto Barrón-Cedeño author Preslav Nakov author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication da-san-martino-etal-2020-prta 10.18653/v1/2020.acl-demos.32 https://aclanthology.org/2020.acl-demos.32/ 2020-07 287 293 Clinical-Coder: Assigning Interpretable ICD-10 Codes to Chinese Clinical Notes Pengfei Cao author Chenwei Yan author Xiangling Fu author Yubo Chen author Kang Liu author Jun Zhao author Shengping Liu author Weifeng Chong author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication cao-etal-2020-clinical 10.18653/v1/2020.acl-demos.33 https://aclanthology.org/2020.acl-demos.33/ 2020-07 294 301 ESPnet-ST: All-in-One Speech Translation Toolkit Hirofumi Inaguma author Shun Kiyono author Kevin Duh author Shigeki Karita author Nelson Yalta author Tomoki Hayashi author Shinji Watanabe author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication inaguma-etal-2020-espnet 10.18653/v1/2020.acl-demos.34 https://aclanthology.org/2020.acl-demos.34/ 2020-07 302 311 Penman: An Open-Source Library and Tool for AMR Graphs Michael Wayne Goodman author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication goodman-2020-penman 10.18653/v1/2020.acl-demos.35 https://aclanthology.org/2020.acl-demos.35/ 2020-07 312 319 Embedding-based Scientific Literature Discovery in a Text Editor Application Onur Gökçe author Jonathan Prada author Nikola I Nikolov author Nianlong Gu author Richard H.R. Hahnloser author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication gokce-etal-2020-embedding 10.18653/v1/2020.acl-demos.36 https://aclanthology.org/2020.acl-demos.36/ 2020-07 320 326 MMPE: A Multi-Modal Interface using Handwriting, Touch Reordering, and Speech Commands for Post-Editing Machine Translation Nico Herbig author Santanu Pal author Tim Düwel author Kalliopi Meladaki author Mahsa Monshizadeh author Vladislav Hnatovskiy author Antonio Krüger author Josef van Genabith author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication herbig-etal-2020-mmpe-multi 10.18653/v1/2020.acl-demos.37 https://aclanthology.org/2020.acl-demos.37/ 2020-07 327 334 Torch-Struct: Deep Structured Prediction Library Alexander Rush author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication rush-2020-torch 10.18653/v1/2020.acl-demos.38 https://aclanthology.org/2020.acl-demos.38/ 2020-07 335 342 Conversation Learner - A Machine Teaching Tool for Building Dialog Managers for Task-Oriented Dialog Systems Swadheen Shukla author Lars Liden author Shahin Shayandeh author Eslam Kamal author Jinchao Li author Matt Mazzola author Thomas Park author Baolin Peng author Jianfeng Gao author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication shukla-etal-2020-conversation 10.18653/v1/2020.acl-demos.39 https://aclanthology.org/2020.acl-demos.39/ 2020-07 343 349 NSTM: Real-Time Query-Driven News Overview Composition at Bloomberg Joshua Bambrick author Minjie Xu author Andy Almonte author Igor Malioutov author Guim Perarnau author Vittorio Selo author Iat Chong Chan author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication bambrick-etal-2020-nstm 10.18653/v1/2020.acl-demos.40 https://aclanthology.org/2020.acl-demos.40/ 2020-07 350 361 SUPP.AI: finding evidence for supplement-drug interactions Lucy Lu Wang author Oyvind Tafjord author Arman Cohan author Sarthak Jain author Sam Skjonsberg author Carissa Schoenick author Nick Botner author Waleed Ammar author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication wang-etal-2020-supp 10.18653/v1/2020.acl-demos.41 https://aclanthology.org/2020.acl-demos.41/ 2020-07 362 371 LEAN-LIFE: A Label-Efficient Annotation Framework Towards Learning from Explanation Dong-Ho Lee author Rahul Khanna author Bill Yuchen Lin author Seyeon Lee author Qinyuan Ye author Elizabeth Boschee author Leonardo Neves author Xiang Ren author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication lee-etal-2020-lean 10.18653/v1/2020.acl-demos.42 https://aclanthology.org/2020.acl-demos.42/ 2020-07 372 379 What’s The Latest? A Question-driven News Chatbot Philippe Laban author John Canny author Marti A Hearst author 2020-07 text Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics: System Demonstrations Asli Celikyilmaz editor Tsung-Hsien Wen editor Association for Computational Linguistics Online conference publication laban-etal-2020-whats 10.18653/v1/2020.acl-demos.43 https://aclanthology.org/2020.acl-demos.43/ 2020-07 380 387