{"id":"https://openalex.org/W1975551804","doi":"https://doi.org/10.1109/grc.2009.5255026","title":"Choosing the root node of a quadtree","display_name":"Choosing the root node of a quadtree","publication_year":2009,"publication_date":"2009-08-01","ids":{"openalex":"https://openalex.org/W1975551804","doi":"https://doi.org/10.1109/grc.2009.5255026","mag":"1975551804"},"language":"en","primary_location":{"id":"doi:10.1109/grc.2009.5255026","is_oa":false,"landing_page_url":"https://doi.org/10.1109/grc.2009.5255026","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Granular Computing","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102916605","display_name":"Xiang Yin","orcid":"https://orcid.org/0000-0003-0472-2783"},"institutions":[{"id":"https://openalex.org/I186803428","display_name":"Brock University","ror":"https://ror.org/056am2717","country_code":"CA","type":"education","lineage":["https://openalex.org/I186803428"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Xiang Yin","raw_affiliation_strings":["Department of Computer Science, Brock University, Saint Catharines, ONT, Canada","Department of Computer Science , Brock University , St. Catharines, Ontario, Canada , L2S 3A1"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Brock University, Saint Catharines, ONT, Canada","institution_ids":["https://openalex.org/I186803428"]},{"raw_affiliation_string":"Department of Computer Science , Brock University , St. Catharines, Ontario, Canada , L2S 3A1","institution_ids":["https://openalex.org/I186803428"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062553445","display_name":"Ivo D\u00fcntsch","orcid":"https://orcid.org/0000-0001-8907-2382"},"institutions":[{"id":"https://openalex.org/I186803428","display_name":"Brock University","ror":"https://ror.org/056am2717","country_code":"CA","type":"education","lineage":["https://openalex.org/I186803428"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Ivo Duntsch","raw_affiliation_strings":["Department of Computer Science, Brock University, Saint Catharines, ONT, Canada","Department of Computer Science , Brock University , St. Catharines, Ontario, Canada , L2S 3A1"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Brock University, Saint Catharines, ONT, Canada","institution_ids":["https://openalex.org/I186803428"]},{"raw_affiliation_string":"Department of Computer Science , Brock University , St. Catharines, Ontario, Canada , L2S 3A1","institution_ids":["https://openalex.org/I186803428"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024035154","display_name":"G\u00fcnther Gediga","orcid":null},"institutions":[{"id":"https://openalex.org/I22465464","display_name":"University of M\u00fcnster","ror":"https://ror.org/00pd74e08","country_code":"DE","type":"education","lineage":["https://openalex.org/I22465464"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Gunther Gediga","raw_affiliation_strings":["Department of Psychology, Universit\u00e4t Munster, Munster, Germany","Dept. of Psychology, Universit\u00e4t M\u00fcnster, Fliednerstr. 21, D-48149, Germany"],"affiliations":[{"raw_affiliation_string":"Department of Psychology, Universit\u00e4t Munster, Munster, Germany","institution_ids":["https://openalex.org/I22465464"]},{"raw_affiliation_string":"Dept. of Psychology, Universit\u00e4t M\u00fcnster, Fliednerstr. 21, D-48149, Germany","institution_ids":["https://openalex.org/I22465464"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5102916605"],"corresponding_institution_ids":["https://openalex.org/I186803428"],"apc_list":null,"apc_paid":null,"fwci":1.414,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.80301168,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"98","issue":null,"first_page":"721","last_page":"726"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11063","display_name":"Rough Sets and Fuzzy Logic","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11596","display_name":"Constraint Satisfaction and Optimization","score":0.9925000071525574,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12923","display_name":"Digital Image Processing Techniques","score":0.9882000088691711,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/quadtree","display_name":"Quadtree","score":0.988798975944519},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6527765989303589},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5507760643959045},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.5465847849845886},{"id":"https://openalex.org/keywords/granularity","display_name":"Granularity","score":0.508918285369873},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.45928502082824707},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.44739827513694763},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.36525899171829224}],"concepts":[{"id":"https://openalex.org/C151416825","wikidata":"https://www.wikidata.org/wiki/Q934791","display_name":"Quadtree","level":2,"score":0.988798975944519},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6527765989303589},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5507760643959045},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.5465847849845886},{"id":"https://openalex.org/C177774035","wikidata":"https://www.wikidata.org/wiki/Q1246948","display_name":"Granularity","level":2,"score":0.508918285369873},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.45928502082824707},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.44739827513694763},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.36525899171829224},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/grc.2009.5255026","is_oa":false,"landing_page_url":"https://doi.org/10.1109/grc.2009.5255026","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Granular Computing","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.217.5351","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.217.5351","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cosc.brocku.ca/files/downloads/research/cs0908.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1870618159","https://openalex.org/W1933657216","https://openalex.org/W2008196645","https://openalex.org/W2030670215","https://openalex.org/W2031517258","https://openalex.org/W2034618995","https://openalex.org/W2050576295","https://openalex.org/W2076399175","https://openalex.org/W2141950232","https://openalex.org/W2160010345","https://openalex.org/W2340020088","https://openalex.org/W2781963651","https://openalex.org/W4255833381","https://openalex.org/W6681218353","https://openalex.org/W6812632051"],"related_works":["https://openalex.org/W2207790469","https://openalex.org/W4253586140","https://openalex.org/W2042588826","https://openalex.org/W2372141727","https://openalex.org/W2388177796","https://openalex.org/W2286458017","https://openalex.org/W2368170224","https://openalex.org/W2078645328","https://openalex.org/W2367540977","https://openalex.org/W1588041347"],"abstract_inverted_index":{"Granular":[0],"computing":[1],"is":[2,30],"closely":[3],"related":[4],"to":[5,20,63,74],"the":[6,9,33,49,85,92],"depth":[7],"of":[8,11,35,41,54,79,87],"detail":[10,29],"information":[12],"with":[13,91],"which":[14,83],"we":[15,69],"are":[16],"presented,":[17],"or":[18],"choose":[19],"process.":[21],"In":[22,66],"spatial":[23],"cognition":[24],"and":[25,56],"image":[26,43,50],"processing":[27],"such":[28],"given":[31],"by":[32],"resolution":[34],"a":[36,45,71,76,80],"picture.":[37],"The":[38],"quadtree":[39,58,82,94],"representation":[40],"an":[42],"offers":[44],"quick":[46],"look":[47],"at":[48,51],"various":[52],"stages":[53],"granularity,":[55],"successive":[57],"representations":[59],"can":[60],"be":[61],"used":[62],"represent":[64],"change.":[65],"this":[67],"paper":[68],"present":[70],"heuristic":[72],"algorithm":[73],"find":[75],"root":[77],"node":[78],"region":[81],"reduces":[84],"number":[86],"leaves":[88],"when":[89],"compared":[90],"standard":[93],"decomposition.":[95]},"counts_by_year":[{"year":2012,"cited_by_count":2}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
