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Fix minor typos #562

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6 changes: 3 additions & 3 deletions chapter08_computer-vision/object-detection.ipynb
Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@
"\n",
"### Default anchor boxes\n",
"\n",
"Since an anchor box can have arbituary shape, \n",
"Since an anchor box can have arbitrary shape, \n",
"we sample a set of anchor boxes as the candidate. \n",
"In particular, for each pixel, we sample multiple boxes \n",
"centered at this pixel but have various sizes and ratios. \n",
Expand Down Expand Up @@ -278,7 +278,7 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"### Manage preditions from multiple layers\n",
"### Manage predictions from multiple layers\n",
"\n",
"A key property of SSD is that predictions are made \n",
"at multiple layers with shrinking spatial size. \n",
Expand Down Expand Up @@ -878,7 +878,7 @@
"source": [
"### Evaluation metrics\n",
"\n",
"Here, we define two metrics that we'll use to evaluate our performance whien training. \n",
"Here, we define two metrics that we'll use to evaluate our performance when training. \n",
"You're already familiar with accuracy unless you've been naughty and skipped straight to object detection.\n",
"We use the accuracy metric to assess the quality of the class predictions. \n",
"Mean absolute error (MAE) is just the L1 distance, introduced in our [linear algebra chapter](../chapter01_crashcourse/linear-algebra.ipynb).\n",
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