Yazar "Yıldız, Olcay Taner" için MF - Bildiri Koleksiyonu | Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering listeleme
-
A hybrid approach to dynamic enterprise data platform
Sezgin, Mehmet Selman; Bayrak, Ahmet Tuğrul; Yıldız, Olcay Taner (Institute of Electrical and Electronics Engineers Inc., 2019-12-12)Today, corporations aim to make maximum use of the data produced in business applications. One of the most important goals is to convert the data to the commercial benefit in the fastest way. For this purpose, it is critical ... -
Incremental construction of rule ensembles using classifiers produced by different class orderings
Yıldız, Olcay Taner; Ulaş, Aydın (IEEE, 2016)In this paper, we discuss a novel approach to incrementally construct a rule ensemble. The approach constructs an ensemble from a dynamically generated set of rule classifiers. Each classifier in this set is trained by ... -
An incremental model selection algorithm based on cross-validation for finding the architecture of a Hidden Markov model on hand gesture data sets
Ulaş, Aydın; Yıldız, Olcay Taner (IEEE, 2009-12-13)In a multi-parameter learning problem, besides choosing the architecture of the learner, there is the problem of finding the optimal parameters to get maximum performance. When the number of parameters to be tuned increases, ... -
Integrating Turkish Wordnet KeNet to Princeton WordNet: The case of one-to-many correspondences
Bakay, Özge; Ergelen, Özlem; Yıldız, Olcay Taner (Institute of Electrical and Electronics Engineers Inc., 2019-10)In this paper, we introduce a novel approach of forming interlingual relations between multilingual wordnets. We have mapped Turkish senses in KeNet with their corresponding senses in Princeton WordNet by drawing one-To-many ... -
İlişkisel veri tabanlarında mükerrer kayıtların makine ö?renmesiyle tespiti
Bayrak, Ahmet Tuğrul; Yılmaz, Aykut İnan; Yılmaz, Kemal Burak; Düzağaç, Remzi; Yıldız, Olcay Taner (Institute of Electrical and Electronics Engineers Inc., 2018-07-05)Veri miktarının artışına paralel olarak, ilişkisel veri tabanlarında mükerrer kayıtlar da artmaktadır. Artan bu kayıtlar kullanıldıkları rapor veya analizlerde tutarsızlığa sebep olabilmektedir. Bu sorunu en aza indirgemek ... -
İngi?li?zce-Türkçe i?stati?sti?ksel maki?ne çevi?ri?si?nde bi?çi?m bi?li?m kullanımı
Görgün, Onur; Yıldız, Olcay Taner (IEEE, 2012-04-18)Bu çalışmada, İngilizce-Türkçe dil ikilisi için biçimbilimsel çözümleme yardımı ile SIU dermecesi üzerinde istatistiksel makine çevirisi denemeleri yapılmıştır. Kelime biçimlerinin baz alındığı çeviri denemeleri İngilizce-Türkçe ... -
A multilayer annotated corpus for Turkish
Yıldız, Olcay Taner; Ak, Koray; Ercan, Gökhan; Topsakal, Ozan; Asmazoğlu, Cengiz (IEEE, 2018-06-06)In this paper, we present the first multilayer annotated corpus for Turkish, which is a low-resourced agglutinative language. Our dataset consists of 9,600 sentences translated from the Penn Treebank Corpus. Annotated ... -
Multivariate statistical tests for comparing classification algorithms
Yıldız, Olcay Taner; Aslan, Özlem; Alpaydın, Ahmet İbrahim Ethem (Springer, Berlin, Heidelberg, 2011)The misclassification error which is usually used in tests to compare classification algorithms, does not make a distinction between the sources of error, namely, false positives and false negatives. Instead of summing ... -
Müşterilerin GSP analizi kullanarak kümelenmesi
Pakyürek, Muhammet; Sezgin, Mehmet Selman; Kestepe, Sedat; Bora, Büşra; Düzağaç, Remzi; Yıldız, Olcay Taner (Institute of Electrical and Electronics Engineers Inc., 2018-07-05)Bu çalışma ile mevcut misafir ve rezervasyon verisi kullanılarak doğal öbeklenmeleri tespit ederek misafir davranışları tespit ettik. Ayrıca verilen hizmetleri ve satış stratejilerini bu davranışlara göre özelleştirdik. ... -
A new approach for named entity recognition
Ertopçu, Burak; Kanburoğlu, Ali Buğra; Topsakal, Ozan; Açıkgöz, Onur; Gürkan, Ali Tunca; Özenç, Berke; Avar, Begüm; Ercan, Gökhan; Yıldız, Olcay Taner; Çam, İlker (IEEE, 2017)Many sentences create certain impressions on people. These impressions help the reader to have an insight about the sentence via some entities. In NLP, this process corresponds to Named Entity Recognition (NER). NLP ... -
A novel approach to morphological disambiguation for Turkish
Görgün, Onur; Yıldız, Olcay Taner (Springer-Verlag, 2012)In this paper, we propose a classification based approach to the morphological disambiguation for Turkish language. Due to complex morphology in Turkish, any word can get unlimited number of affixes resulting very large ... -
A novel regression method for software defect prediction with kernel methods
Okutan, Ahmet; Yıldız, Olcay Taner (2013)In this paper, we propose a novel method based on SVM to predict the number of defects in the files or classes of a software system. To model the relationship between source code similarity and defectiveness, we use SVM ... -
On building the largest and cross-linguistic Turkish dependency corpus
Kuzgun, Aslı; Cesur, Neslihan; Arıcan, Bilge Nas; Özçelik, Merve; Marşan, Büşra; Kara, Neslihan; Aslan, Deniz Baran; Yıldız, Olcay Taner (Institute of Electrical and Electronics Engineers Inc., 2020-10-15)In this paper, we aim to introduce the dependency annotation process of the largest and the only cross-linguistic Turkish dependency treebank which was translated from the original Penn Treebank corpus. Within the scope ... -
On the VC-dimension of univariate decision trees
Yıldız, Olcay Taner (2012)In this paper, we give and prove lower bounds of the VC-dimension of the univariate decision tree hypothesis class. The VC-dimension of the univariate decision tree depends on the VC-dimension values of its subtrees and ... -
An open, extendible, and fast Turkish morphological analyzer
Yıldız, Olcay Taner; Avar, Begüm; Ercan, Gökhan (Incoma Ltd, 2019-09)In this paper, we present a two-level morphological analyzer for Turkish which consists of five main components: finite state transducer, rule engine for suffixation, lexicon, trie data structure, and LRU cache. We use ... -
Problems caused by semantic drift in WordNet synset construction
Bakay, Özge; Ergelen, Özlem; Yıldız, Olcay Taner (Institute of Electrical and Electronics Engineers Inc., 2019-09)In this study, we summarize the semantic drift problem that occur in specific synsets of KeNet, a Turkish WordNet, which is caused by mis-merging of semantically-related lexical items, morphological markings and false part ... -
Regularizing soft decision trees
Yıldız, Olcay Taner; Alpaydın, Ahmet İbrahim Ethem (Springer, 2013)Recently, we have proposed a new decision tree family called soft decision trees where a node chooses both its left and right children with different probabilities as given by a gating function, different from a hard ... -
Searching for the optimal ordering of classes in rule induction
Ata, Sezin; Yıldız, Olcay Taner (IEEE, 2012-11-15)Rule induction algorithms such as Ripper, solve a K > 2 class problem by converting it into a sequence of K - 1 two-class problems. As a usual heuristic, the classes are fed into the algorithm in the order of increasing ... -
Shallow parsing in Turkish
Topsakal, Ozan; Açıkgöz, Onur; Gürkan, Ali Tunca; Kanburoğlu, Ali Buğra; Ertopçu, Burak; Özenç, Berke; Çam, İlker; Avar, Begüm; Ercan, Gökhan; Yıldız, Olcay Taner (IEEE, 2017)In this study, shallow parsing is applied on Turkish sentences. These sentences are used to train and test the per-formances of various learning algorithms with various features specified for shallow parsing in Turkish. -
Soft decision trees
İrsoy, Ozan; Yıldız, Olcay Taner; Alpaydın, Ahmet İbrahim Ethem (IEEE, 2012)We discuss a novel decision tree architecture with soft decisions at the internal nodes where we choose both children with probabilities given by a sigmoid gating function. Our algorithm is incremental where new nodes are ...