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There exist various problems to which computational geometry and graph \uff06 network theory is applicable in mobile communication services. For example, it is well-known that Coloring algorithms of graphs are applicable in channel assignment algorithms in cellular systems. In this paper, we solve location problems of base stations in a mobile communication system like PHS (Personal Handy-phone System) using results of computational geometry.", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "149579", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Tamura, Hiroshi"}]}, {"nameIdentifiers": [{"nameIdentifier": "149580", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Sengoku, Masakazu"}]}, {"nameIdentifiers": [{"nameIdentifier": "5445", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Shinoda, Shoji"}]}]}, "item_7_publisher_7": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u65b0\u6f5f\u5de5\u79d1\u5927\u5b66"}]}, "item_7_select_19": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AN10590360", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1342792X", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u7530\u6751, \u88d5"}], "nameIdentifiers": [{"nameIdentifier": "149576", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "\u4ed9\u77f3, \u6b63\u548c"}], "nameIdentifiers": [{"nameIdentifier": "149577", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "\u7be0\u7530, \u5e84\u53f8"}], "nameIdentifiers": [{"nameIdentifier": "5445", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-19"}], "displaytype": "detail", "download_preview_message": "", "filename": "2011_1_niit1_046.pdf", "filesize": [{"value": "304.9 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 3049000, "url": {"label": "2011_1_niit1_046.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/25383/files/2011_1_niit1_046.pdf"}, "version_id": "552492fc-b4ab-4f29-ae31-2665cd45c9a7"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "mobile communication", "subitem_subject_scheme": "Other"}, {"subitem_subject": "base station", "subitem_subject_scheme": "Other"}, {"subitem_subject": "computational geometry", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Voronoi diagram", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "\u7c21\u6613\u578b\u643a\u5e2f\u96fb\u8a71\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u57fa\u5730\u5c40\u306e\u914d\u7f6e\u554f\u984c\u3068\u8a08\u7b97\u5e7e\u4f55\u5b66", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "\u7c21\u6613\u578b\u643a\u5e2f\u96fb\u8a71\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u57fa\u5730\u5c40\u306e\u914d\u7f6e\u554f\u984c\u3068\u8a08\u7b97\u5e7e\u4f55\u5b66"}, {"subitem_title": "\u7c21\u6613\u578b\u643a\u5e2f\u96fb\u8a71\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u57fa\u5730\u5c40\u306e\u914d\u7f6e\u554f\u984c\u3068\u8a08\u7b97\u5e7e\u4f55\u5b66", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["453/456", "423/721/1290"], "permalink_uri": "http://hdl.handle.net/10191/22363", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_name_i18n": "\u516c\u958b\u65e5", "attribute_value": "2013-05-17"}, "publish_date": "2013-05-17", "publish_status": "0", "recid": "25383", "relation": {}, "relation_version_is_last": true, "title": ["\u7c21\u6613\u578b\u643a\u5e2f\u96fb\u8a71\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u57fa\u5730\u5c40\u306e\u914d\u7f6e\u554f\u984c\u3068\u8a08\u7b97\u5e7e\u4f55\u5b66"], "weko_shared_id": null}