Journal article
The limits of SDP relaxations for general-valued CSPs
- Abstract:
-
It has been shown that for a general-valued constraint language Γ the following statements are equivalent: (1) any instance of VCSP(Γ) can be solved to optimality using a constant level of the Sherali-Adams LP hierarchy, (2) any instance of VCSP(Γ) can be solved to optimality using the third level of the Sherali-Adams LP hierarchy, and (3) the support of Γ satisfies the “bounded width condition” (i.e., it contains weak near-unanimity operations of all arities). We show that if the support of ...
Expand abstract
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Accepted manuscript, pdf, 443.3KB)
-
- Publisher copy:
- 10.1145/3201777
Why is the content I wish to access not available via ORA?
Bibliographic data (the information relating to research outputs) and full-text items (e.g. articles, theses, reports, etc.) arrive in ORA from several different sources. Unfortunately we are not able to make available the full-text for every research output.
Please contact the ORA team (
) if you have queries regarding unavailable content OR if you are aware of a full-text copy we can make available.
) if you have queries regarding unavailable content OR if you are aware of a full-text copy we can make available.
Content may be unavailable for the following four reasons
-
Version unsuitable
-
We have not obtained a suitable full-text for a given research output. See this page for more information.
-
Recently completed
-
Sometimes content is held in ORA but is unavailable for a fixed period of time to comply with the policies and wishes of rights holders.
-
Permissions
-
All content made available in ORA should comply with relevant rights, such as copyright. See this page for more information.
-
Clearance
-
Some thesis volumes scanned as part of the digitisation scheme funded by Dr Leonard Polonsky are currently unavailable due to sensitive material or uncleared third-party copyright content. We are attempting to contact authors whose theses are affected.
Alternative access to the full-text
You may be able to access the full-text directly from the publisher's website using the 'Publisher Copy' link in the 'Links & Downloads' box from a research output's ORA record page. This method may require an institutional or individual subscription to the journal/resource.
Authors
Funding
Bibliographic Details
- Publisher:
- Association for Computing Machinary Publisher's website
- Journal:
- ACM Transactions on Computation Theory Journal website
- Volume:
- 10
- Issue:
- 3
- Article number:
- 12
- Publication date:
- 2018-06-08
- Acceptance date:
- 2018-03-13
- DOI:
- ISSN:
-
1942-3454
- Source identifiers:
-
829420
Item Description
- Keywords:
- Pubs id:
-
pubs:829420
- UUID:
-
uuid:aee4e87e-fcee-4fe9-9aba-3b9e67d0de81
- Local pid:
- pubs:829420
- Deposit date:
- 2018-03-13
Terms of use
- Copyright holder:
- ACM
- Copyright date:
- 2018
- Notes:
- Copyright © 2018 ACM. This is the accepted manuscript version of the article. The final version is available online from ACM at: https://doi.org/10.1145/3201777
If you are the owner of this record, you can report an update to it here: Report update to this record