- Joined
- Jun 27, 2017
- Professional Status
- Certified General Appraiser
- State
- California
Look, please understand, this is still a ways off. Advanced appraisers are still in a good position long-term. They will be needed to manage the new systems as they come online. -- However, traditional appraisers are going to be a dying breed.
I can clearly see this now with Meta's free SAM 2:
github.com
What does this mean?
1. With RCA, 80% of the valuation is capable of being objectively automated to high precision.
2. The other 20%, more or less, at least in the San Francisco Bay area, with its high land prices, is, with respect to the subject property, subject to subjective opinion on the value contribution of unmeasured features.
3. However, about #2, we now have the ability of computer software to extract specific features from MLS photographs, and treat them as measured variables via their numerical RGB color value matrices of pixels. New software such as Meta's SAM are pretty good at this extraction, and the valuation of extracted photos can be accomplished with CNN. So, we can go through a stack of property MLS photographs, automatically categorize them by type (exterior vs interior, rooftop, front of house, back of house, kitchen, living room, master bathroom, ...), and then also automatically extract items from the photos and appropriately label them, e.g. toilet, sink, shower, bathtub, floor, refrigerator, gas range, oen kitchen sink, kitchen counter-top and so on. Then these photos, as grids of numerical RGB pixels, can be run through CNN (Convoluted Neural Network) programs to be valued on their impact on sale prices. The subject can also be ranked based on its photos.
Conclusion: The subject property valuation is currently capable of being nearly 100% objectively valued by current technology. The process needs to be managed and monitored by a knowledgeable appraiser, but the appraiser won't do the vast majority of the work. It is a question of time and resources. Processing photos, even with a good computer, can be time-consuming. However, efficiency will improve over time. No surprise.
I am currently working on such a system --- and it will be executable online by others - demo data only.
I can clearly see this now with Meta's free SAM 2:
GitHub - facebookresearch/segment-anything: The repository provides code for running inference with the SegmentAnything Model (SAM), links for downloading the trained model checkpoints, and example notebooks that show how to use the model.
The repository provides code for running inference with the SegmentAnything Model (SAM), links for downloading the trained model checkpoints, and example notebooks that show how to use the model. -...
What does this mean?
1. With RCA, 80% of the valuation is capable of being objectively automated to high precision.
2. The other 20%, more or less, at least in the San Francisco Bay area, with its high land prices, is, with respect to the subject property, subject to subjective opinion on the value contribution of unmeasured features.
3. However, about #2, we now have the ability of computer software to extract specific features from MLS photographs, and treat them as measured variables via their numerical RGB color value matrices of pixels. New software such as Meta's SAM are pretty good at this extraction, and the valuation of extracted photos can be accomplished with CNN. So, we can go through a stack of property MLS photographs, automatically categorize them by type (exterior vs interior, rooftop, front of house, back of house, kitchen, living room, master bathroom, ...), and then also automatically extract items from the photos and appropriately label them, e.g. toilet, sink, shower, bathtub, floor, refrigerator, gas range, oen kitchen sink, kitchen counter-top and so on. Then these photos, as grids of numerical RGB pixels, can be run through CNN (Convoluted Neural Network) programs to be valued on their impact on sale prices. The subject can also be ranked based on its photos.
Conclusion: The subject property valuation is currently capable of being nearly 100% objectively valued by current technology. The process needs to be managed and monitored by a knowledgeable appraiser, but the appraiser won't do the vast majority of the work. It is a question of time and resources. Processing photos, even with a good computer, can be time-consuming. However, efficiency will improve over time. No surprise.
I am currently working on such a system --- and it will be executable online by others - demo data only.
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