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Posted to dev@mahout.apache.org by Sebastian Schelter <ss...@apache.org> on 2011/05/31 14:25:20 UTC
PageRank
Hello everyone,
I have a question regarding legal issues.
I have one of my students implement PageRank in MapReduce, would it be
possible to contribute this to Mahout or are there any legal issues
prohibiting this?
I read that Stanford is holding a patent on PageRank but I've seen a
PageRank implementation already included in the Pegasus Framework from
Carnegie Mellon University which is Apache licensed.
Can someone help here with advice?
--sebastian
Re: PageRank
Posted by Benson Margulies <bi...@gmail.com>.
Read the Apache Individual Contributor License Agreement, section 5:
5. You represent that each of Your Contributions is Your original
creation (see section 7 for submissions on behalf of others). You
represent that Your Contribution submissions include complete
details of any third-party license or other restriction (including,
but not limited to, related patents and trademarks) of which you
are personally aware and which are associated with any part of Your
Contributions.
On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter <ss...@apache.org> wrote:
> Hello everyone,
>
> I have a question regarding legal issues.
>
> I have one of my students implement PageRank in MapReduce, would it be
> possible to contribute this to Mahout or are there any legal issues
> prohibiting this?
>
> I read that Stanford is holding a patent on PageRank but I've seen a
> PageRank implementation already included in the Pegasus Framework from
> Carnegie Mellon University which is Apache licensed.
>
> Can someone help here with advice?
>
> --sebastian
>
Re: PageRank
Posted by Benson Margulies <bi...@gmail.com>.
Well, we can go send that link to legal-discuss@apache.org and see
what they say.
On Tue, May 31, 2011 at 10:57 AM, Sebastian Schelter <ss...@apache.org> wrote:
> I'm a little confused now :) What do you mean by "real knowledge"? I found a
> link to the patent when reading the wikipedia page about PageRank, however
> as I'm not a lawyer, I don't consider myself capable of judging the
> situation.
>
> --sebastian
>
> On 31.05.2011 16:41, Benson Margulies wrote:
>>
>> Let me clarify this:
>>
>> No one is obligated to do patent research. If you have real knowledge
>> of a patent infringement in a proposed contribution, you must disclose
>> it. If you have no real knowledge, you need not go looking for it.
>>
>> On Tue, May 31, 2011 at 10:18 AM, Dhruv Kumar<dk...@ecs.umass.edu>
>> wrote:
>>>
>>> Jimmy Lin's Cloud 9 Map Reduce library also includes an implementation of
>>> Page Rank as an example:
>>>
>>> http://www.umiacs.umd.edu/~jimmylin/cloud9/docs/
>>>
>>> On Tue, May 31, 2011 at 9:10 AM, Sebastian Schelter<ss...@apache.org>
>>> wrote:
>>>
>>>> Thank you very much for the advice, I'll try to contact Stanford then.
>>>>
>>>> --sebastian
>>>>
>>>>
>>>> On 31.05.2011 14:53, Benson Margulies wrote:
>>>>
>>>>> As a contributor, you could submit a patch noting the existence of the
>>>>> patent, *If you know that a patent reads on it*. As a PMC member, I'm
>>>>> advised by legal-discuss@ to reject the patch, unless you can get a
>>>>> grant from Stanford.
>>>>>
>>>>> However, 'having heard' is not the same thing as *knowing*. A vague
>>>>> rumor does not trigger any of this.
>>>>>
>>>>> The fact that CMU has chosen to distribute an implementation is
>>>>> neither here nor there.
>>>>>
>>>>>
>>>>>
>>>>> On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter<ss...@apache.org>
>>>>> wrote:
>>>>>
>>>>>> Hello everyone,
>>>>>>
>>>>>> I have a question regarding legal issues.
>>>>>>
>>>>>> I have one of my students implement PageRank in MapReduce, would it be
>>>>>> possible to contribute this to Mahout or are there any legal issues
>>>>>> prohibiting this?
>>>>>>
>>>>>> I read that Stanford is holding a patent on PageRank but I've seen a
>>>>>> PageRank implementation already included in the Pegasus Framework from
>>>>>> Carnegie Mellon University which is Apache licensed.
>>>>>>
>>>>>> Can someone help here with advice?
>>>>>>
>>>>>> --sebastian
>>>>>>
>>>>>>
>>>>
>>>
>
>
Re: PageRank
Posted by Sebastian Schelter <ss...@apache.org>.
I'm a little confused now :) What do you mean by "real knowledge"? I
found a link to the patent when reading the wikipedia page about
PageRank, however as I'm not a lawyer, I don't consider myself capable
of judging the situation.
--sebastian
On 31.05.2011 16:41, Benson Margulies wrote:
> Let me clarify this:
>
> No one is obligated to do patent research. If you have real knowledge
> of a patent infringement in a proposed contribution, you must disclose
> it. If you have no real knowledge, you need not go looking for it.
>
> On Tue, May 31, 2011 at 10:18 AM, Dhruv Kumar<dk...@ecs.umass.edu> wrote:
>> Jimmy Lin's Cloud 9 Map Reduce library also includes an implementation of
>> Page Rank as an example:
>>
>> http://www.umiacs.umd.edu/~jimmylin/cloud9/docs/
>>
>> On Tue, May 31, 2011 at 9:10 AM, Sebastian Schelter<ss...@apache.org> wrote:
>>
>>> Thank you very much for the advice, I'll try to contact Stanford then.
>>>
>>> --sebastian
>>>
>>>
>>> On 31.05.2011 14:53, Benson Margulies wrote:
>>>
>>>> As a contributor, you could submit a patch noting the existence of the
>>>> patent, *If you know that a patent reads on it*. As a PMC member, I'm
>>>> advised by legal-discuss@ to reject the patch, unless you can get a
>>>> grant from Stanford.
>>>>
>>>> However, 'having heard' is not the same thing as *knowing*. A vague
>>>> rumor does not trigger any of this.
>>>>
>>>> The fact that CMU has chosen to distribute an implementation is
>>>> neither here nor there.
>>>>
>>>>
>>>>
>>>> On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter<ss...@apache.org>
>>>> wrote:
>>>>
>>>>> Hello everyone,
>>>>>
>>>>> I have a question regarding legal issues.
>>>>>
>>>>> I have one of my students implement PageRank in MapReduce, would it be
>>>>> possible to contribute this to Mahout or are there any legal issues
>>>>> prohibiting this?
>>>>>
>>>>> I read that Stanford is holding a patent on PageRank but I've seen a
>>>>> PageRank implementation already included in the Pegasus Framework from
>>>>> Carnegie Mellon University which is Apache licensed.
>>>>>
>>>>> Can someone help here with advice?
>>>>>
>>>>> --sebastian
>>>>>
>>>>>
>>>
>>
Re: PageRank
Posted by Benson Margulies <bi...@gmail.com>.
Let me clarify this:
No one is obligated to do patent research. If you have real knowledge
of a patent infringement in a proposed contribution, you must disclose
it. If you have no real knowledge, you need not go looking for it.
On Tue, May 31, 2011 at 10:18 AM, Dhruv Kumar <dk...@ecs.umass.edu> wrote:
> Jimmy Lin's Cloud 9 Map Reduce library also includes an implementation of
> Page Rank as an example:
>
> http://www.umiacs.umd.edu/~jimmylin/cloud9/docs/
>
> On Tue, May 31, 2011 at 9:10 AM, Sebastian Schelter <ss...@apache.org> wrote:
>
>> Thank you very much for the advice, I'll try to contact Stanford then.
>>
>> --sebastian
>>
>>
>> On 31.05.2011 14:53, Benson Margulies wrote:
>>
>>> As a contributor, you could submit a patch noting the existence of the
>>> patent, *If you know that a patent reads on it*. As a PMC member, I'm
>>> advised by legal-discuss@ to reject the patch, unless you can get a
>>> grant from Stanford.
>>>
>>> However, 'having heard' is not the same thing as *knowing*. A vague
>>> rumor does not trigger any of this.
>>>
>>> The fact that CMU has chosen to distribute an implementation is
>>> neither here nor there.
>>>
>>>
>>>
>>> On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter<ss...@apache.org>
>>> wrote:
>>>
>>>> Hello everyone,
>>>>
>>>> I have a question regarding legal issues.
>>>>
>>>> I have one of my students implement PageRank in MapReduce, would it be
>>>> possible to contribute this to Mahout or are there any legal issues
>>>> prohibiting this?
>>>>
>>>> I read that Stanford is holding a patent on PageRank but I've seen a
>>>> PageRank implementation already included in the Pegasus Framework from
>>>> Carnegie Mellon University which is Apache licensed.
>>>>
>>>> Can someone help here with advice?
>>>>
>>>> --sebastian
>>>>
>>>>
>>
>
Re: PageRank
Posted by Dhruv Kumar <dk...@ecs.umass.edu>.
Jimmy Lin's Cloud 9 Map Reduce library also includes an implementation of
Page Rank as an example:
http://www.umiacs.umd.edu/~jimmylin/cloud9/docs/
On Tue, May 31, 2011 at 9:10 AM, Sebastian Schelter <ss...@apache.org> wrote:
> Thank you very much for the advice, I'll try to contact Stanford then.
>
> --sebastian
>
>
> On 31.05.2011 14:53, Benson Margulies wrote:
>
>> As a contributor, you could submit a patch noting the existence of the
>> patent, *If you know that a patent reads on it*. As a PMC member, I'm
>> advised by legal-discuss@ to reject the patch, unless you can get a
>> grant from Stanford.
>>
>> However, 'having heard' is not the same thing as *knowing*. A vague
>> rumor does not trigger any of this.
>>
>> The fact that CMU has chosen to distribute an implementation is
>> neither here nor there.
>>
>>
>>
>> On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter<ss...@apache.org>
>> wrote:
>>
>>> Hello everyone,
>>>
>>> I have a question regarding legal issues.
>>>
>>> I have one of my students implement PageRank in MapReduce, would it be
>>> possible to contribute this to Mahout or are there any legal issues
>>> prohibiting this?
>>>
>>> I read that Stanford is holding a patent on PageRank but I've seen a
>>> PageRank implementation already included in the Pegasus Framework from
>>> Carnegie Mellon University which is Apache licensed.
>>>
>>> Can someone help here with advice?
>>>
>>> --sebastian
>>>
>>>
>
Re: PageRank
Posted by Sebastian Schelter <ss...@apache.org>.
Thank you very much for the advice, I'll try to contact Stanford then.
--sebastian
On 31.05.2011 14:53, Benson Margulies wrote:
> As a contributor, you could submit a patch noting the existence of the
> patent, *If you know that a patent reads on it*. As a PMC member, I'm
> advised by legal-discuss@ to reject the patch, unless you can get a
> grant from Stanford.
>
> However, 'having heard' is not the same thing as *knowing*. A vague
> rumor does not trigger any of this.
>
> The fact that CMU has chosen to distribute an implementation is
> neither here nor there.
>
>
>
> On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter<ss...@apache.org> wrote:
>> Hello everyone,
>>
>> I have a question regarding legal issues.
>>
>> I have one of my students implement PageRank in MapReduce, would it be
>> possible to contribute this to Mahout or are there any legal issues
>> prohibiting this?
>>
>> I read that Stanford is holding a patent on PageRank but I've seen a
>> PageRank implementation already included in the Pegasus Framework from
>> Carnegie Mellon University which is Apache licensed.
>>
>> Can someone help here with advice?
>>
>> --sebastian
>>
Re: PageRank
Posted by Benson Margulies <bi...@gmail.com>.
As a contributor, you could submit a patch noting the existence of the
patent, *If you know that a patent reads on it*. As a PMC member, I'm
advised by legal-discuss@ to reject the patch, unless you can get a
grant from Stanford.
However, 'having heard' is not the same thing as *knowing*. A vague
rumor does not trigger any of this.
The fact that CMU has chosen to distribute an implementation is
neither here nor there.
On Tue, May 31, 2011 at 8:25 AM, Sebastian Schelter <ss...@apache.org> wrote:
> Hello everyone,
>
> I have a question regarding legal issues.
>
> I have one of my students implement PageRank in MapReduce, would it be
> possible to contribute this to Mahout or are there any legal issues
> prohibiting this?
>
> I read that Stanford is holding a patent on PageRank but I've seen a
> PageRank implementation already included in the Pegasus Framework from
> Carnegie Mellon University which is Apache licensed.
>
> Can someone help here with advice?
>
> --sebastian
>