{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/roof-material-classification-from-aerial","title":"Roof material classification from aerial imagery","arxiv_id":"2004.11482","date":"2020-04-23","proceeding":null,"authors":["Roman Solovyev"],"abstract":"This paper describes an algorithm for classification of roof materials using aerial photographs. Main advantages of the algorithm are proposed methods to improve prediction accuracy. Proposed methods includes: method of converting ImageNet weights of neural networks for using multi-channel images; special set of features of second level models that are used in addition to specific predictions of neural networks; special set of image augmentations that improve training accuracy. In addition, complete flow for solving this problem is proposed. The following content is available in open access: solution code, weight sets and architecture of the used neural networks. The proposed solution achieved second place in the competition \"Open AI Caribbean Challenge\".","url_abs":"https://arxiv.org/abs/2004.11482v1","url_pdf":"https://arxiv.org/pdf/2004.11482v1.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"roof-material-classification-from-aerial","repo_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"tf","reach":null}],"tasks":[{"task_slug":"classification-1","task_name":"Classification"},{"task_slug":"classification","task_name":"General Classification"},{"task_slug":"material-classification","task_name":"Material Classification"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":"https://app.syntology.ai/?focus=2004.11482","mcp":{"get_harvested_code_for_paper":{"arxiv_id":"2004.11482"}},"developers":"https://syntology.ai/developers","read_at":"2026-09-24T18:15:14+00:00","read_at_is":"when the build read Syntology's graph, not when any sample ran","claim":"Per-sample execution status on synthesized fixtures; not a correctness claim about the paper. Samples come from repositories linked to the paper, official or community; repo_kind says which.","repos":[{"provenance":"external:paperswithcode_snapshot_2025-07-28","url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","reach":null}],"summary":{"ran_draft_wrong":3,"ran_violates":1,"unverified":2},"by_repo_kind":{"official":{"samples":6,"ran":4,"repositories":1}},"repo_kind_vocabulary":{"official":"The archive marks this repository official for the paper","named_in_paper":"The archive records that the paper mentions this repository; it is not marked official","listed":"In the archive's code links for this paper, not marked official and not recorded as mentioned in the paper","found_in_text":"Syntology found this repository in the paper's own text; whether it is the authors' implementation is not asserted","community":"Not in the archive's code links for this paper; a community repository Syntology harvested"},"n_pointer_only_for_licence":6,"samples":[{"code_sha256_prefix":"be62f9d3417e260d","entry":"load_from_file","repo":"ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","repo_kind":"official","path":"a00_common_functions.py","file_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution/blob/HEAD/a00_common_functions.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"OUTPUT_MISDECLARED","metamorphic_tier":"deterministic","behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"be62f9d3417e260d"}},{"code_sha256_prefix":"289f2859e7bc1220","entry":"load_from_file_fast","repo":"ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","repo_kind":"official","path":"a00_common_functions.py","file_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution/blob/HEAD/a00_common_functions.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"OUTPUT_MISDECLARED","metamorphic_tier":"deterministic","behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"289f2859e7bc1220"}},{"code_sha256_prefix":"881cb75b2db21bb9","entry":"preproc_input_classifcation","repo":"ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","repo_kind":"official","path":"cnn_v1_densenet121/r16_classification_d121_train_kfold_224.py","file_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution/blob/HEAD/cnn_v1_densenet121/r16_classification_d121_train_kfold_224.py","link_basis":"first_harvest_node","language":"python","status":"ran_violates","verification_level":1,"contract_check":"VIOLATES","metamorphic_tier":"invariant","behaviour_fingerprint":true,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"881cb75b2db21bb9"}},{"code_sha256_prefix":"17d2bc6eca9de2b2","entry":"sort_dict_by_values","repo":"ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","repo_kind":"official","path":"a00_common_functions.py","file_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution/blob/HEAD/a00_common_functions.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"OUTPUT_MISDECLARED","metamorphic_tier":"deterministic","behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"17d2bc6eca9de2b2"}},{"code_sha256_prefix":"2b3f00f49a3d8321","entry":"simple_aug","repo":"ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","repo_kind":"official","path":"cnn_v1_densenet121/r16_classification_d121_train_kfold_224.py","file_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution/blob/HEAD/cnn_v1_densenet121/r16_classification_d121_train_kfold_224.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"2b3f00f49a3d8321"}},{"code_sha256_prefix":"b639c99cec12a359","entry":"strong_aug","repo":"ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution","repo_kind":"official","path":"cnn_v1_densenet121/r16_classification_d121_train_kfold_224.py","file_url":"https://github.com/ZFTurbo/DrivenData-Open-AI-Caribbean-Challenge-2nd-place-solution/blob/HEAD/cnn_v1_densenet121/r16_classification_d121_train_kfold_224.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"NONE","inline_ok":false,"mcp_get_code":{"code_sha256":"b639c99cec12a359"}}]},"arxiv_metadata":null,"syntology_extracted_results":null}