eprintid: 4291 rev_number: 5 eprint_status: archive userid: 351 dir: disk0/00/00/42/91 datestamp: 2016-01-15 02:05:17 lastmod: 2021-08-27 17:35:57 status_changed: 2016-01-15 02:05:17 type: article metadata_visibility: show item_issues_count: 1 creators_name: Skjaerseth, J.B. creators_id: 1581 title: The fruitfulness of various models in the study of international environmental politics ispublished: pub internal_subjects: iis_mod internal_subjects: iis_neg internal_subjects: iis_env divisions: prog_iec keywords: Variable source contamination; Spatial heterogeneity; Inverse problem; Input estimation abstract: The problem considered is that of estimating time-varying pollution inputs to a environmental system when no direct measurements are possible. Assuming that the rate of input of pollutants can be observed indirectly and that its relation to the observations is known, the problem is a model-inversion problem. However, the relation is generally not unique, i.e. more than one set of input behaviour may be consistent with it and the observations. The paper considers two approaches to obtaining information on the input: the reconstructibility approach and the guaranteed interval approach. The reconstructibility approach leads to reliable but restricted information. The result of the reconstructibility approach is an input performance index (a function). The guaranteed interval approach is an extension of the reconstructibility approach and considers unimprovable lower and upper bounds on an input performance index. The paper presents an algorithm for the guaranteed interval approach. date: 1995-06 date_type: published publisher: Sage id_number: 10.1177/0010836795030002003 iiasapubid: XJ-95-042 iiasa_bibref: Cooperation and Conflict; 30(2):155-178 [1995] creators_browse_id: 1576 full_text_status: none publication: Cooperation and Conflict volume: 30 number: 2 pagerange: 155-178 refereed: TRUE issn: 0010-8367 coversheets_dirty: FALSE fp7_type: info:eu-repo/semantics/article citation: Skjaerseth, J.B. (1995). The fruitfulness of various models in the study of international environmental politics. Cooperation and Conflict 30 (2) 155-178. 10.1177/0010836795030002003 .