4 ms·

They don't say what methods they are employing to do this. I think I have a good idea. A two layer neural network with input (features) as the profile of a cr

by maeon3 14y ago

They don't say what methods they are employing to do this. I think I have a good idea. A two layer neural network with input (features) as the profile of a crime in a certain city and all of the related circumstances reduced to numeric columns. That should be able to produce reliable predictions on where/when crimes happen. Andrew Ng talks about how to build this two layer neural network here: http://www.stanford.edu/class/cs221/ http://www.stanford.edu/class/cs221/ Glue it together, feed it the data, refine the inputs, test the outputs and revise the inputs/features, and there you go. And yes for the liberals, this is going to profile people on all of the politically incorrect data points, race, color, sex, orientation, drug use, etc.

stretchwithme 14y ago
orientation is a data point for criminal profiling? that's a new one. How's that going to be detected?
- sp332 14y ago
  Facebook?
- maeon3 14y ago
  You are right, criminals are not profiled for gay/straight/bi/neither orientation, but if they could, a neural network would find a correlation between that column and the location of their next crime. Thas one column would not be enough to decide with any certainty at all, however, if you pass in age, sex, weight, orientation, race, skin color, religious affiliation, address, marital status, prior convictions, languages spoken, income, has-vehicle, make/model of car, profession, where they work, smokes, drinks, and hundreds of other spot data points about them, a two layer neural network would be able to pull it all in, and use historical data to train against later data, and use recent data to predict where the crimes are going to occur, and it will be eerily right, gathering information gain from what seems out of thin air.
  - stretchwithme 14y ago
    I think its more likely that crime will be predicted by looking at actual behavior. Someone unidentified that is acting suspiciously in a place where no visitors are expected. That sort of detection is going to get automated and will become ubiquitous.
csharpminor 14y ago
I'd like to point out that this technology really isn't new; it began with CompStat back in 1993. (See this issue of "Police Chief Magazine")[http://policechiefmagazine.org/magazine/index.cfm?fuseaction=print_display&article_id=1942&issue_id=112009 http://policechiefmagazine.org/magazine/index.cfm?fuseaction...]
mikeinahat 14y ago
> And yes for the liberals, this is going to profile people on all of the politically incorrect data points, race, color, sex, orientation, drug use, etc. This program isn't profiling people, it's profiling crimes. > "The new program used by LAPD and police in the Northern California city of Santa Cruz is more timely and precise, proponents said. Built on the same model for predicting aftershocks following an earthquake, the software promises to show officers what might be coming based on simple, constantly calibrated data — location, time and type of crime." Location, time, and type of crime. Multivariate regression, not neural networks.

by maeon3 14y ago

stretchwithme 14y ago

orientation is a data point for criminal profiling? that's a new one. How's that going to be detected?

sp332 14y ago
Facebook?
maeon3 14y ago
You are right, criminals are not profiled for gay/straight/bi/neither orientation, but if they could, a neural network would find a correlation between that column and the location of their next crime. Thas one column would not be enough to decide with any certainty at all, however, if you pass in age, sex, weight, orientation, race, skin color, religious affiliation, address, marital status, prior convictions, languages spoken, income, has-vehicle, make/model of car, profession, where they work, smokes, drinks, and hundreds of other spot data points about them, a two layer neural network would be able to pull it all in, and use historical data to train against later data, and use recent data to predict where the crimes are going to occur, and it will be eerily right, gathering information gain from what seems out of thin air.
- stretchwithme 14y ago
  I think its more likely that crime will be predicted by looking at actual behavior. Someone unidentified that is acting suspiciously in a place where no visitors are expected. That sort of detection is going to get automated and will become ubiquitous.

csharpminor 14y ago

I'd like to point out that this technology really isn't new; it began with CompStat back in 1993. (See this issue of "Police Chief Magazine")[http://policechiefmagazine.org/magazine/index.cfm?fuseaction=print_display&article_id=1942&issue_id=112009 http://policechiefmagazine.org/magazine/index.cfm?fuseaction...]

mikeinahat 14y ago

> And yes for the liberals, this is going to profile people on all of the politically incorrect data points, race, color, sex, orientation, drug use, etc. This program isn't profiling people, it's profiling crimes. > "The new program used by LAPD and police in the Northern California city of Santa Cruz is more timely and precise, proponents said. Built on the same model for predicting aftershocks following an earthquake, the software promises to show officers what might be coming based on simple, constantly calibrated data — location, time and type of crime." Location, time, and type of crime. Multivariate regression, not neural networks.