how does antivirus works? [closed] - antivirus

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Closed 11 years ago.
What are the basic working principles of an antivirus program?

it matches patterns of known viruses with each file.
for example change the executable into a histogram and compare the similarity between that executable and known viruses.
another way is to scan for design patterns such as polymorphisism and comparing those to, this can lead to false positives (in very complex apps) but also catch unknown viruses.

A antivirus reads trough all files and searches for patterns of known viruses in the files.

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Getting a probability from a classifier [closed]

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Closed 9 years ago.
I'm doing some work classifying images and was looking for a classifier that gives its answer in turns of a probability instead of true/false like svmclassify. Anyone have any suggestions for toolboxes that have this feature?
RVMs' (Relevant Vector Machines) output probability and if you want to use them, download Kevin Murphy's Machine Learning toolkit. Matlab doesn't have an RVM implementation as far as I know.

What is best way to transfer the file to other server other than socket connection [closed]

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Closed 9 years ago.
I want to transfer fle from one server to other server.What are different ways to transfer the file to other server other than Socket connection? and Which is best way to transfer the file?
Thank you.
As an alternative you can just copy the file to a shared folder. It's a known EIP integration style, see http://www.eaipatterns.com/toc.html. Interestingly, this way you can also make it available to many servers at once, kind of publishing.

Disable ipad fully [closed]

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Closed 10 years ago.
Can we disable the ipad fully? I have heard that its not possible. I have searched for it and it shows that the above cannot be done and if its done then the app will be rejected. But still for an accurate answer i'm posting this. Can any one provide me with the correct response?
No, you cannot do this without rooting the iPad (thereby invalidating its warrantee) and installing what most users would consider malware. (You may well have a reasonable use case — loaning them out or something — I'm just saying, that's how most users would see it.)

How can I simulate a moving average model(1) with parameter =0.7? [closed]

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Closed 10 years ago.
How can I simulate a ma(1) model with parameter =0.7 using matlab?
The Systems Identification Toolbox may have what you need.
If you need or want to do it by hand, however (homework?), I would suggest outlining the steps of what needs to be done (break up the problem in parts, starting from the definition of MA models) and asking a more detailed question when you get stuck.

Program that compares two files [closed]

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Closed 12 years ago.
Let's say I have two files.. I want to compare them side-by-side and see what's added... anyone know?
Essentially they are the SAME file.
Beyond Compare
fc(file compare) in DOS?
Use diff on linux/unix or windiff on windows.
DiffMerge from SourceGear is also a nice tool, and it's free.
If you are looking for any *nix based system there is one built in called 'diff' as Raoul mentioned ... there is also 'compare' in the Windows command line which will do essentially the same (but not as thorough) ...
Otherwise you are going to need to be a bit more specific about what you want.