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© 2017 ACM. Entity matching (EM) is a critical part of data integration and cleaning. In many applications, the users need to understand why two entities are considered a match, which reveals the need for interpretable and concise EM rules. We model EM rules in the form of General Boolean Formulas (GBFs) that allows arbitrary attribute matching combined by conjunctions (Vee), disjunctions (Wedge), and negations (not). GBFs can generate more concise rules than traditional EM rules represented in disjunctive normal forms (DNFs). We use program synthesis, a powerful tool to automatically generate rules (or programs) that provably satisfy a high-level specification, to automatically synthesize EM rules in GBF format, given only positive and negative matching examples. In this demo, attendees will experience the following features: (1) Interpretability. they can see and measure the conciseness of EM rules defined using GBFs; (2) Easy customization. they can provide custom experiment parameters for various datasets, and, easily modify a rich predefined (default) synthesis grammar, using a Web interface; and (3) High performance. they will be able to compare the generated concise rules, in terms of accuracy, with probabilistic models (e.g., machine learning methods), and hand-written EM rules provided by experts. Moreover, this system will serve as a general platform for evaluating di.erent methods that discover EM rules, which will be released as an opensource tool on GitHub.

© 2018 IEEE. In order for an enterprise to gain insight into its internal business and the changing outside environment, it is essential to provide the relevant data for in-depth analysis. Enterprise data is usually scattered across departments and geographic regions and is often inconsistent. Data scientists spend the majority of their time finding, preparing, integrating, and cleaning relevant data sets. Data Civilizer is an end-To-end data preparation system. In this paper, we present the complete system, focusing on our new workflow engine, a superior system for entity matching and consolidation, and new cleaning tools. Our workflow engine allows data scientists to author, execute and retrofit data preparation pipelines of different data discovery and cleaning services. Our end-To-end demo scenario is based on data from the MIT data warehouse and e-commerce data sets.