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Due to the increased amount and heterogeneity of the LDAP data, there is a requirement for appropriate data organization schemes. The LPAIR &amp; LMERGE (LP-LM) algorithm, presented in this article, is a hierarchical agglomerative structure-based clustering algorithm which can be used for the LDAP directory information tree definition. A thorough study of the algorithm\u2019s performance is provided, which designates its efficiency. Moreover, the\n            <jats:italic>Relative Link<\/jats:italic>\n            as an alternative merging criterion is proposed, since as indicated by the experimentation, it can result in more balanced clusters. Finally, the\n            <jats:italic>LP and LM Query Engine<\/jats:italic>\n            is presented, which considering the clustering-based LDAP data organization, results in the enhancement of the LDAP server\u2019s performance.\n          <\/jats:p>","DOI":"10.1145\/1993053.1993054","type":"journal-article","created":{"date-parts":[[2011,7,21]],"date-time":"2011-07-21T13:27:09Z","timestamp":1311254829000},"page":"1-34","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["A Clustering-Driven LDAP Framework"],"prefix":"10.1145","volume":"5","author":[{"given":"Vassiliki","family":"Koutsonikola","sequence":"first","affiliation":[{"name":"Aristotle University"}]},{"given":"Athena","family":"Vakali","sequence":"additional","affiliation":[{"name":"Aristotle University"}]}],"member":"320","published-online":{"date-parts":[[2011,7]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1109\/TKDE.2004.1269671"},{"key":"e_1_2_1_2_1","unstructured":"Carter G. 2003. 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Kluwer, 39--56","author":"Kumar A.","key":"e_1_2_1_23_1"},{"volume-title":"Proceedings of the 3rd International Semantic Web Conference. Springer.","author":"Laukkanen M.","key":"e_1_2_1_24_1"},{"key":"e_1_2_1_25_1","doi-asserted-by":"publisher","DOI":"10.1145\/1081870.1081894"},{"key":"e_1_2_1_26_1","doi-asserted-by":"publisher","DOI":"10.1109\/TKDE.2004.1264824"},{"key":"e_1_2_1_27_1","doi-asserted-by":"publisher","DOI":"10.1109\/TSMCA.2005.851277"},{"volume-title":"Proceedings of the 4th Annual PKI R&D Workshop. NIST Technical Publication.","author":"Lim S.","key":"e_1_2_1_28_1"},{"key":"e_1_2_1_29_1","doi-asserted-by":"publisher","DOI":"10.1145\/262116.262123"},{"key":"e_1_2_1_30_1","unstructured":"Maron P. and Lausen G. 2001. HLCaches: An LDAP-Based Distributed Cache Technology for XML. Albert-Ludwigs University at Freiburg. Maron P. and Lausen G. 2001. HLCaches: An LDAP-Based Distributed Cache Technology for XML . 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