Dataset: HASYV2

About this Dataset

HASYV2

Context

HASYv2 - Handwritten Symbol database

Content

HASY contains 32px x 32px images of 369 symbol classes. In total, HASY contains over 150,000 instances of handwritten symbols.

See "The HASYv2 dataset" paper (https://arxiv.org/abs/1701.08380) for more information.

Acknowledgements

I want to thank “Begabtenstiftung Informatik Karlsruhe”, the Foundation for Gifted Informatics Students in Karlsruhe. Their support helped me to write this work.

HOW HASY WAS CREATED

HASY is derived from the HWRT dataset which was first used
and described in [Tho14]. HWRT is an on-line recognition
dataset, meaning it does not contain the handwritten symbols as
images, but as point-sequences. Hence HWRT contains strictly
more information than HASY. The smaller dimension of each
recordings bounding box was scaled to be 32 px. The image
was then centered within the 32 px × 32 px bounding box

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Tables

Hasy Data Labels

@kaggle.guru001_hasyv2.hasy_data_labels

925.41 KB
168233 rows
4 columns


CREATE TABLE hasy_data_labels (
  "path" VARCHAR,
  "symbol_id" BIGINT,
  "latex" VARCHAR,
  "user_id" BIGINT
);

Symbols

@kaggle.guru001_hasyv2.symbols

10.29 KB
369 rows
4 columns


CREATE TABLE symbols (
  "symbol_id" BIGINT,
  "latex" VARCHAR,
  "training_samples" BIGINT,
  "test_samples" BIGINT
);