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Sun 20 - Fri 25 October 2019 Athens, Greece
Fri 25 Oct 2019 14:45 - 15:07 at Attica - Synthesis Chair(s): Christoph Reichenbach

Developers nowadays have to contend with a growing number of APIs. While in the long-term they are very useful to developers, many modern APIs have an incredibly steep learning curve, due to their hundreds of functions handling many arguments, obscure documentation, and frequently changing semantics. For APIs that perform data transformations, novices can often provide an I/O example demonstrating the desired transformation, but may be stuck on how to translate it to the API. A programming-by-example synthesis engine that takes such I/O examples and directly produces programs in the target API could help such novices. Such an engine presents unique challenges due to the breadth of real-world APIs, and the often-complex constraints over function arguments. We present a generator-based synthesis approach to contend with these problems. This approach uses a program candidate generator, which encodes basic constraints on the space of programs. We introduce neural-backed operators which can be seamlessly integrated into the program generator. To improve the efficiency of the search, we simply use these operators at non-deterministic decision points, instead of relying on domain-specific heuristics. We implement this technique for the Python pandas library in AutoPandas. AutoPandas supports 119 pandas dataframe transformation functions. We evaluate AutoPandas on 26 real-world benchmarks and find it solves 17 of them.

Fri 25 Oct
Times are displayed in time zone: (GMT+03:00) Beirut change

14:00 - 15:30: OOPSLA - Synthesis at Attica
Chair(s): Christoph ReichenbachLund University
splash-2019-oopsla14:00 - 14:22
splash-2019-oopsla14:22 - 14:45
Benjamin MarianoUniversity of Maryland, College Park, Josh ReeseUniversity of Maryland, College Park, Siyuan XuPurdue University, ThanhVu NguyenUniversity of Nebraska, Lincoln, Xiaokang QiuPurdue University, Jeffrey S. FosterTufts University, Armando Solar-LezamaMassachusetts Institute of Technology
splash-2019-oopsla14:45 - 15:07
Rohan BavishiUC Berkeley, Caroline LemieuxUniversity of California, Berkeley, Roy FoxUC Berkeley, Koushik SenUniversity of California, Berkeley, Ion StoicaUC Berkeley
splash-2019-oopsla15:07 - 15:30
Anders MiltnerPrinceton University, Sumit GulwaniMicrosoft, Vu LeMicrosoft, Alan LeungMicrosoft, Arjun RadhakrishnaMicrosoft, Gustavo SoaresMicrosoft, Ashish TiwariMicrosoft, Abhishek UdupaMicrosoft
DOI Pre-print Media Attached