VLDB 2021: Demonstrations

The demonstrations that have been accepted in the conference are listed below.

Accepted Demonstrations

KDV-Explorer: A Near Real-Time Kernel Density Visualization System for Spatial Analysis Tsz Nam Chan (Hong Kong Baptist University), Pak Lon Ip (University of Macau), Leong Hou U (University of Macau), Weng Hou Tong (University of Macau), Shivansh Mittal (The University of Hong Kong), Ye Li (University of Macau), Reynold Cheng (The University of Hong Kong, China)

Refiner: A Reliable Incentive-Driven Federated Learning System Powered by Blockchain Zhebin Zhang (Zhejiang University), Dajie Dong (Zhejiang University), Yuhang Ma (Zhejiang University), Yilong Ying (Zhejiang University), Dawei Jiang (Zhejiang University), Ke Chen (Zhejiang University), Lidan Shou (Zhejiang University), Gang Chen (Zhejiang University)

MultiCategory: Multi-model Query Processing Meets Category Theory and Functional Programming Valter Uotila (University of Helsinki), Jiaheng Lu (University of Helsinki), Dieter Gawlick (Oracle), Zhen Hua Liu (Oracle), Souripriya Das (Oracle), Gregory Pogossiants (Soulmates.ai)

Cquirrel: Continuous Query Processing over Acyclic Relational Schemas Qichen Wang (Hong Kong University of Science and Technology), Chaoqi Zhang (Hong Kong University of Science and Technology), Danish Alsayed (Hong Kong University of Science and Technology), Ke Yi (Hong Kong Univ. of Science and Technology), Bin Wu (Alibaba), Feifei Li (Alibaba Group), Chaoqun Zhan (Alibaba Inc.)

DeFiHap: Detecting and Fixing HiveQL Anti-Patterns Yuetian Mao (Shanghai Jiao Tong University), Shuai Yuan (Shanghai Jiao Tong University), Nan Cui (Shanghai Jiao Tong University), Tianjiao Du (Shanghai Jiao Tong University), Beijun Shen (Shanghai Jiao Tong University), Yuting Chen (Shanghai Jiao Tong University)

A Demonstration of KGLac: A Data Discovery and Enrichment Platform for Data Science Ahmed Helal (Concordia University), Mossad Helali (Concordia University), Khaled Ammar (BorealisAI), Essam Mansour (Concordia University)

Assessing the Existence of a Model in your Data with ADESIT Pierre Faure--Giovagnoli (INSA Lyon), Marie Le Guilly (INSA Lyon), Vasile-Marian Scuturici (LIRIS), Jean-Marc Petit (LIRIS)

Path Advisor: A Multi-Functional Campus Map Tool for Shortest Path Yinzhao YAN (Hong Kong University of Science and Technology), Raymond Chi-Wing Wong (Hong Kong University of Science and Technology)

Intermittent Human-in-the-Loop Model Selection using Cerebro: A Demonstration Liangde Li (UC San Diego), Supun C Nakandala (University of California, San Diego), Arun Kumar (University of California, San Diego)

Low-Latency Compilation of SQL Queries to Machine Code Henning Funke (TU Dortmund University), Jens Teubner (TU Dortmund University)

Sound of Databases: Sonification of a Semantic Web Database Engine Sven Groppe (University of Lubeck), Rico Klinckenberg (University of Lubeck), Benjamin Warnke (University of Lubeck)

HyMAC: A Hybrid Matrix Computation System Zihao Chen (East China Normal University), Zhizhen Xu (East China Normal University), Chen Xu (East China Normal University), Juan Soto (TU Berlin), Volker Markl (Technische Universitat Berlin), Weining Qian (East China Normal University), Aoying Zhou (East China Normal University )

GraphScope: A One-Stop Large Graph Processing System Jingbo Xu (Peking University & Alibaba Group), Zhanning Bai (Ant Group), Wenfei Fan (Univ. of Edinburgh ), Longbin Lai (Alibaba Group), Xue Li (Alibaba Group), Zhao Li (Alibaba Group), Zhengping Qian (Alibaba Group), Lei Wang (Alibaba Group), Yanyan Wang (Ant Group), Wenyuan Yu (Alibaba Group), Kai Zeng (Alibaba Group), Jingren Zhou (Alibaba Group)

Just Move It! Dynamic Parameter Allocation in Action Alexander Renz-Wieland (Technische Universitat Berlin), Tobias Drobisch (TU Berlin), Zoi Kaoudi (TU Berlin), Rainer Gemulla (Universitat Mannheim), Volker Markl (Technische Universitat Berlin)

CBench: Demonstrating Comprehensive Evaluation of Question Answering Systems over Knowledge Graphs Through Deep Analysis of Benchmarks Abdelghny Orogat (Carleton University), Ahmed El-Roby (Carleton University)

PostCENN: PostgreSQL with Machine Learning Models for Cardinality Estimation Lucas Woltmann (Technische Universitat Dresden), Dominik Olwig (Technische Universitat Dresden), Claudio Hartmann (Technische Universitat Dresden), Dirk Habich (TU Dresden), Wolfgang Lehner (TU Dresden)

DENOUNCER: Detection of Unfairness in Classifiers Jinyang Li (University of Michigan), Yuval Moskovitch (University of Michigan), H. V. Jagadish (University of Michigan)

A Demonstration of QARTA: An ML-based System for Accurate Map Services Sofiane Abbar (Qatar Computing Research Institute), Rade Stanojevic (Qatar Computing Research Institute), Mashaal Musleh (University of Minnesota), Mohamed M Elshrif (Qatar Computing Research Institute), Mohamed Mokbel (University of Minnesota - Twin Cities)*

TraNCE: Transforming Nested Collections Efficiently Jaclyn Smith (Oxford University), Michael Benedikt (Oxford University), Brandon Moore (Oxford University), Milos Nikolic (University of Edinburgh)

Debugging Missing Answers for Spark Queries over Nested Data with Breadcrumb Ralf Diestelkamper (University of Stuttgart), Seokki Lee (University of Cincinnati), Boris Glavic (Illinois Institute of Technology), Melanie Herschel (Universitat Stuttgart)

Demonstration of Panda: A Weakly Supervised Entity Matching System Renzhi Wu (Georgia Institute of Technology), Prem Sakala (Georgia Institute of Technology), Peng Li (GATECH), Xu Chu (GATECH), Yeye He (Microsoft Research)

Automatic Data Acquisition for Deep Learning Jiabin Liu (Tsinghua University), Fu Zhu (Tsinghua University), Chengliang Chai (Tsinghua University), Yuyu Luo (Tsinghua University), Nan Tang (Qatar Computing Research Institute, HBKU)

DBMind: A Self-Driving Platform in openGauss Xuanhe Zhou (Tsinghua), Lianyuan Jin (Tsinghua University), Ji Sun (Tsinghua University), xinyang zhao (Tsinghua university), Xiang Yu (Tsinghua University), Shifu Li (Huawei), Tianqing Wang (Huawei), Kun Li (Huawei), Luyang liu (Huawei)

Demonstration of Dealer: An End-to-End Model Marketplace with Differential Privacy Jinfei Liu (Zhejiang University), Qiongqiong Lin (Zhejiang University), Jiayao Zhang (Zhejiang University), Kui Ren (Zhejiang University), Jian Lou (Emory University), Junxu Liu (Renmin University of China), Li Xiong (Emory University), Jian Pei (Simon Fraser University), Jimeng Sun (UIUC)

Assassin: an Automatic claSSificAtion system baSed on algorithm SelectIoN TianYu Mu (Harbin Institute of Technology), Hongzhi Wang (Harbin Institute of Technology), ShengHe Zheng (Harbin Institute of Technology), ShaoQing Zhang (Harbin Institute of Technology), Cheng Liang (Harbin Institute of Technology), HaoYun Tang (HIT)

ATLANTIC: Making Database Differentially Private and Faster with Accuracy Guarantee Lei Cao (MIT), Dongqing Xiao (Google), Yizhou Yan (Worcester Polytechnic Institute), Samuel Madden (MIT), Guoliang Li (Tsinghua University)

Demonstration of Marius: Graph Embeddings with a Single Machine Anders Carlsson (University of Wisconsin-Madison), Anze Xie (University of Wisconsin-Madison), Jason M Mohoney (University of Wisconsin-Madison), Roger Waleffe (University of Wisconsin-Madison), Shanan Peters (University of Wisconsin-Madison), Theodoros Rekatsinas (University of Wisconsin-Madison), Shivaram Venkataraman (University of Wisconsin, Madison)

From Papers to Practice: The openclean Open-Source Data Cleaning Library Heiko Mueller (NYU), Sonia Castelo (New York University), Munaf A Qazi (New York University), Juliana Freire (New York University)

Demonstration of Apperception: A Database Management System for Geospatial Video Data Vanessa Lin (University of California Berkeley), Yongming Ge (University of California Berkeley), Maureen Daum (University of Washington), Alvin Cheung (University of California, Berkeley), Brandon Haynes (Microsoft), Magdalena Balazinska (UW)

Automated energy consumption forecasting with EnForce Mary Karatzoglidi (National Technical University of Athens), Paraskevas Kerasiotis (National Technical University of Athens), Verena Kantere (National Technical University of Athens)*

RealGraph-Web: A Graph Analysis Platform on the Web Myung-Hwan Jang (Hanyang University), Yong-Yeon Jo (Hanyang University), Sang-Wook Kim (Hanyang University, Korea)*

Interactive Demonstration of SQLCHECK Arthita Ghosh (Georgia Institute Of Technology), Arpit Narechania (Georgia Institute of Technology), Visweswara Sai Prashanth Dintyala (Georgia Institute of Technology), Su Timurturkan (Georgia Institute of Technology), Joy Arulraj (Georgia Tech), Deven Bansod (Georgia Institute of Technology)

T-Cove: An exposure tracing System based on Cleaning Wi-Fi Events on Organizational Premises Yiming Lin (University of California, Irvine), Pramod Khargonekar (U.C. Irvine), Sharad Mehrotra (U.C. Irvine), Nalini Venkatasubramanian (University of California, Irvine)

Demonstration of Generating Explanations for Black-Box Algorithms Using Lewis Paul Y Wang (University of California, San Diego), Sainyam Galhotra (University of Massachusetts Amherst), Romila Pradhan (University of California San Diego), Babak Salimi (Unievristy of California at San Diego)

Auctus: A Dataset Search Engine for Data Discovery and Augmentation Sonia Castelo (New York University), Remi Rampin (NYU), Aecio Santos (New York University), Aline Bessa (New York University), Fernando Chirigati (NYU), Juliana Freire (New York University)

A Demonstration of Relic: A System for REtrospective Lineage InferenCe of Data Workflows Mohammed Suhail Rehman (University of Chicago), Silu Huang (Microsoft), Aaron J Elmore (University of Chicago)

SChain: A Scalable Consortium Blockchain Exploiting Intra- and Inter-Block Concurrency Zhihao Chen (East China Normal University), Haizhen Zhuo (Ant Group), Quangqing Xu (Ant Group), Xiaodong Qi (East China Normal University), Chengyu Zhu (East China Normal University), Zhao Zhang (East China Normal University), Cheqing Jin (East China Normal University), Aoying Zhou (East China Normal University), Ying Yan (Ant Group), Hui Zhang (Ant Group)

EPICGen: An Experimental Platform for Indoor Congestion Generation and Forecasting Chrysovalantis Anastasiou (University of Southern California), Constantinos Costa (University of Pittsburgh), Panos K. Chrysanthis (University of Pittsburgh), Cyrus Shahabi (Computer Science Department. University of Southern California)

Wikinegata: a Knowledge Base with Interesting Negative Statements Hiba Arnaout ( Max-Planck-Institut fur Informatik), Simon Razniewski (Max-Planck-Institut fur Informatik, Germany), Gerhard Weikum (Max-Planck-Institut fur Informatik), Jeff Z. Pan (The University of Edinburgh)

Full Encryption: An end to end encryption mechanism in GaussDB Liang Guo (Huawei Technologies Co., Ltd.), Jinwei Zhu (Huawei Technologies Co., Ltd.), Jiayang Liu (Huawei Technologies Co., Ltd.), Kun Cheng (Huawei Technologies Co., Ltd.)

DatAgent: The Imminent Age of Intelligent Data Assistants Antonis Mandamadiotis (Athena Research Center), Georgia Koutrika (Athena Research Center), Stavroula Eleftherakis (Athena Research Center), Apostolis Glenis (Athena Research Center), Dimitrios Skoutas (Athena Research Center), Yiannis Stavrakas (Athena)

DICE: Data Discovery by Example El Kindi Rezig (MIT), Anshul Bhandari (National Institute of Technology Hamirpur), Anna Fariha (University of Massachusetts Amherst), Benjamin Price (MIT Lincoln Laboratory), Allan Vanterpool (United States Air Force), Vijay Gadepally (MIT Lincoln Laboratory), Michael Stonebraker (MIT)

AnyOLAP: Analytical Processing of Arbitrary Data-Intensive Applications without ETL Felix M Schuhknecht (Johannes Gutenberg-University Mainz), Aaron Priesterroth (Johannes Gutenberg-University Mainz), Justus Henneberg (Johannes Gutenberg-University Mainz), Reza Salkhordeh (Johannes Gutenberg-University Mainz)

A Demonstration of the Exathlon Benchmarking Platform for Explainable Anomaly Detection Vincent Jacob (Ecole Polytechnique), Fei Song (Ecole Polytechnique), Arnaud Stiegler (Ecole Polytechnique), Bijan Rad (Ecole Polytechnique), Yanlei Diao (Ecole Polytechnique), Nesime Tatbul (Intel Labs and MIT)

An Intermediate Representation for Hybrid Database and Machine Learning Workloads Amir Shaikhha (University of Edinburgh), Maximilian Schleich (University of Washington), Dan Olteanu (University of Zurich)

How Divergent Is Your Data? Eliana Pastor (Politecnico di Torino), Andrew Gavgavian (University of California, Santa Cruz), Elena Baralis (Dipartimento di Automatica e Informatica Politecnico di Torino), Luca de Alfaro (University of California, Santa Cruz)

An Extensible and Reusable Pipeline for Automated Utterance Paraphrases auday berro (Universite Claude Bernard lyon 1), Mohammad-Ali Yaghub Zade Fard (University of New South Wales), Marcos Baez (Universite Claude Bernard Lyon 1), Boualem Benatallah (University of New South Wales, Australia), Khalid Benabdeslem (Universite Claude Bernard Lyon 1)

Compliant Geo-distributed Data Processing in Action Kaustubh Beedkar (TU Berlin), David Brekardin (TU Berlin), Jorge Arnulfo Quiane Ruiz (TU Berlin), Volker Markl (Technische Universitat Berlin)

Query-Driven Video Event Processing for the Internet of Multimedia Things Piyush Yadav (Insight SFI Research Centre for Data Analytics), Dhaval Salwala (Insight SFI Centre for Data Analytics), Felipe Pontes (Insight SFI Centre for Data Analytics), Praneet Dhingra (Insight SFI Centre for Data Analytics), Edward Curry (Insight SFI Centre for Data Analytics)

A Demonstration of NoDA: Unified Access to NoSQL Stores Nikolaos Koutroumanis (University of Piraeus), Kousathanas Nikolaos (University of Pireaus), Christos Doulkeridis (University of Pireaus), Akrivi Vlachou (University of the Aegean)

AutoExecutor: Predictive Parallelism for Spark SQL Queries Rathijit Sen (Microsoft), Abhishek Roy (Microsoft), Alekh Jindal (Microsoft), Rui Fang (Microsoft), Jeff Zheng (Microsoft), Xiaolei Liu (Microsoft), Ruiping Li (Microsoft)

Catch a Blowfish Alive: A Demonstration of Policy-Aware Differential Privacy for Interactive Data Exploration Jiaxiang Liu (University of Waterloo), Karl Knopf (University of Waterloo), Yiqing Tan (University of Waterloo), Bolin Ding (Data Analytics and Intelligence Lab, Alibaba Group), Xi He (University of Waterloo)

RONIN: Data Lake Exploration Paul Ouellette (University of Rochester), Aidan Sciortino (University of Rochester), Fatemeh Nargesian (University of Rochester), Bahar Ghadiri Bashardoost (University of Toronto), Erkang Zhu (Microsoft Research), Ken Pu (Ontario Tech University), Renee J. Miller (Northeastern University)

SAND in Action: Subsequence Anomaly Detection for Streams Paul Boniol (Universite de Paris), John Paparrizos (University of Chicago), Themis Palpanas (University of Paris), Michael Franklin (University of Chicago)

Valentine in Action: Matching Tabular Data at Scale Christos Koutras (TU Delft), Kyriakos Psarakis (TU Delft), George Siachamis (TU Delft), Andra Ionescu (TU Delft), Marios Fragkoulis (TU Delft), Angela Bonifati (Univ. of Lyon), Asterios Katsifodimos (TU Delft)

GEDet: Detecting Erroneous Nodes with A Few Examples Sheng Guan (Case Western Reserve University), Hanchao Ma (Case Western Reserve University), Sutanay Choudhury (Pacific Northwest National Laboratory), Yinghui Wu (Case Western Reserve University)