Duplicate from qbo-odp/deep1b

Co-authored-by: hgf <qbo-odp@users.noreply.huggingface.co>

.gitattributes

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+*.7z filter=lfs diff=lfs merge=lfs -text
+*.arrow filter=lfs diff=lfs merge=lfs -text
+*.bin filter=lfs diff=lfs merge=lfs -text
+*.bz2 filter=lfs diff=lfs merge=lfs -text
+*.ckpt filter=lfs diff=lfs merge=lfs -text
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+*.pb filter=lfs diff=lfs merge=lfs -text
+*.pickle filter=lfs diff=lfs merge=lfs -text
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+*.pt filter=lfs diff=lfs merge=lfs -text
+*.pth filter=lfs diff=lfs merge=lfs -text
+*.rar filter=lfs diff=lfs merge=lfs -text
+*.safetensors filter=lfs diff=lfs merge=lfs -text
+saved_model/**/* filter=lfs diff=lfs merge=lfs -text
+*.tar.* filter=lfs diff=lfs merge=lfs -text
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+*.tflite filter=lfs diff=lfs merge=lfs -text
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+*.zip filter=lfs diff=lfs merge=lfs -text
+*.zst filter=lfs diff=lfs merge=lfs -text
+*tfevents* filter=lfs diff=lfs merge=lfs -text
+# Audio files - uncompressed
+*.pcm filter=lfs diff=lfs merge=lfs -text
+*.sam filter=lfs diff=lfs merge=lfs -text
+*.raw filter=lfs diff=lfs merge=lfs -text
+# Audio files - compressed
+*.aac filter=lfs diff=lfs merge=lfs -text
+*.flac filter=lfs diff=lfs merge=lfs -text
+*.mp3 filter=lfs diff=lfs merge=lfs -text
+*.ogg filter=lfs diff=lfs merge=lfs -text
+*.wav filter=lfs diff=lfs merge=lfs -text
+# Image files - uncompressed
+*.bmp filter=lfs diff=lfs merge=lfs -text
+*.gif filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text
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+# Image files - compressed
+*.jpg filter=lfs diff=lfs merge=lfs -text
+*.jpeg filter=lfs diff=lfs merge=lfs -text
+*.webp filter=lfs diff=lfs merge=lfs -text
+base.10M.fbin filter=lfs diff=lfs merge=lfs -text

README.md

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+---
+license:
+  - apache-2.0
+pretty_name: qbo-odp/deep1B
+size_categories:
+  - 1M<n<10M
+source_datasets:
+  - original
+tags:
+  - deep1b,vector,vector search
+task_categories:
+  - feature-extraction
+---
+
+## deep1B
+
+deep1B data, copied from [https://research.yandex.com/blog/benchmarks-for-billion-scale-similarity-search](https://research.yandex.com/blog/benchmarks-for-billion-scale-similarity-search), published:
+```
+Babenko A, Lempitsky V. Efficient indexing of billion-scale datasets of deep descriptors[C]//Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition. 2016: 2055-2063.
+```

base.10M.fbin

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+version https://git-lfs.github.com/spec/v1
+oid sha256:290b341abc7ba570541e013fd20fd6d38c5873490ef395b512de5ed8dee18ce7
+size 3840000008

loading.py

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+import numpy as np
+
+def read_fbin(filename, start_idx=0, chunk_size=None):
+    """ Read *.fbin file that contains float32 vectors
+    Args:
+        :param filename (str): path to *.fbin file
+        :param start_idx (int): start reading vectors from this index
+        :param chunk_size (int): number of vectors to read.
+                                 If None, read all vectors
+    Returns:
+        Array of float32 vectors (numpy.ndarray)
+    """
+    with open(filename, "rb") as f:
+        nvecs, dim = np.fromfile(f, count=2, dtype=np.int32)
+        nvecs = (nvecs - start_idx) if chunk_size is None else chunk_size
+        arr = np.fromfile(f, count=nvecs * dim, dtype=np.float32,
+                          offset=start_idx * 4 * dim)
+    return arr.reshape(nvecs, dim)
+
+
+# read data
+# chunk_size = 50000
+# dataset = read_fbin('deep1B/base.10M.fbin', chunk_size=chunk_size)