пролог преобразователя SQL
Ваша проблема в том, что path_ds должны быть путями изображения в виде строк, но вы пытаетесь преобразовать их в список тензоров.
Итак, чтобы получить тензоры, вам нужно только:
image_ds = all_image_paths.map(load_and_decode_image, num_parallel_calls=AUTOTUNE)
2 ответа
Отображение не очень хорошо. SQL, например, не делает отслеживания в обратном порядке, объединения, списков или для данного случая вложенных структур.
Пролог не имеет дело хорошо с составными объектами, индексами, и т.д.
Я сказал бы, что это - остановка.
Yes, of course.
A premise for skeptics: any semi-decent book on database theory mentions Datalog (which is Prolog-like) and theorems which demonstrate that is possible to translate it to/from Relational Algebra (RA) (under specific restrictions).
SQL is not faithful to RA or relational calculi, but is enough to support Prolog:
- Christoph Draxler has developed a Prolog to SQL compiler (PL2SQL) for his thesis, available for download (.tgz) - also here at CMU Artificial Intelligence Repository (it was adapted and included in at least: Ciao Prolog and SWI-Prolog via Blipkit - Biomedical LogIc Programming Knowledge Integration Kit);
- Igor Wojnicki has developed for his PhD (A Rule-based Inference Engine Extending Knowledge Processing Capabilities of Relational Database Management Systems) a prototype system implementing his Jelly View technology called ReDaReS, but it seems not available for download;
- Relational Abstract Machine (RAM) translates Prolog to Relational Algebra, but it doesn't seems to have a SQL backend;
- Walter D. Potter has a couple of papers on Prolog/RDBMS integration;
- Kevin Boone's paper on Using SQL with Prolog to improve performance with large databases is also interesting;
- and so on...