Size of this PNG preview of this SVG file: 699 × 600 pixels. Other resolutions: 280 × 240 pixels | 560 × 480 pixels | 895 × 768 pixels | 1,194 × 1,024 pixels | 2,387 × 2,048 pixels | 1,028 × 882 pixels.
Original file (SVG file, nominally 1,028 × 882 pixels, file size: 71 KB)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
Simplified neural network example for object detection: As seen at the output at right, the network is trained to associate a ringed texture and star outline with a starfish, and a striped texture and oval shape with a sea urchin. In this run, it correctly detects the starfish in the input picture at left. In addition, a shell that was not included in the training gives a weak signal for the oval shape, resulting in a weak signal from only one of two intermediate nodes for the sea urchin output, which may still result in a false positive result (or "hallucination") for sea urchin. In reality, textures and outlines would not be represented by single nodes, but rather by associated weight patterns of multiple nodes. |
| Date | |
| Source |
Own work
|
| Author |
.jpg) - Reusing images - Conflicts of interest: None |
| Other versions |
 |
Context
Simplified example of training a neural network in object detection: The network is trained by multiple images that are known to depict starfish and sea urchins, which are correlated with "nodes" that represent visual features. The starfish match with a ringed texture and a star outline, whereas most sea urchins match with a striped texture and oval shape. However, the instance of a ring textured sea urchin creates a weakly weighted association between them.
Subsequent run of the network on an input image (left): The network correctly detects the starfish. However, the weakly weighted association between ringed texture and sea urchin also confers a weak signal to the latter from one of two intermediate nodes. In addition, a shell that was not included in the training gives a weak signal for the oval shape, also resulting in a weak signal for the sea urchin output. These weak signals may result in a false positive result for sea urchin.
Licensing
 
|
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:52, 2 October 2023 | | 1,028 × 882 (71 KB) | Mikael Häggström | Update |
| 05:51, 22 September 2023 |  | 1,028 × 882 (66 KB) | Mikael Häggström | Minor correction | |
| 05:49, 22 September 2023 |  | 1,028 × 882 (66 KB) | Mikael Häggström | Less overlapping | |
| 09:58, 21 September 2023 |  | 1,028 × 882 (64 KB) | Mikael Häggström | Arrows from circle borders | |
| 09:53, 21 September 2023 |  | 1,028 × 882 (64 KB) | Mikael Häggström | Adjustment | |
| 06:12, 21 September 2023 |  | 1,028 × 882 (110 KB) | Mikael Häggström | Uploaded a work by {{Mikael Häggström|cat=Non-medical diagrams}} from {{Own}} with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on ml.wikipedia.org
- Usage on sr.wikipedia.org
- Usage on ta.wikipedia.org
- Usage on uk.wikipedia.org
