Now showing items 1-14 of 14

    • Analysis and design of scalable software as a service architecture 

      Özcan, Onur (Bilkent University, 2015)
      Different from traditional enterprise applications that rely on the infrastructure and services provided and controlled within an enterprise, cloud computing is based on services that are hosted on providers over the ...
    • Analysis of DF relay selection in massive MIMO systems with hardware ımpairments 

      Kazemi, M.; Mohammadi, A.; Duman, Tolga M. (IEEE, 2020)
      We consider a massive multiple-input multiple-output (m-MIMO) system in which a source communicates with a destination with the help of multiple single-antenna decode-and-forward (DF) relays. Employing optimal relay ...
    • Cascade-aware partitioning of large graph databases 

      Demirci, Gündüz Vehbi; Ferhatosmanoğlu, H.; Aykanat, Cevdet (Springer, 2019)
      Graph partitioning is an essential task for scalable data management and analysis. The current partitioning methods utilize the structure of the graph, and the query log if available. Some queries performed on the database ...
    • Dynamic capacity management for voice over packet networks 

      Akar, Nail; Şahin, Cem (2003-06-07)
      In this paper, dynamic capacity management refers to the process of dynamically changing the capacity allocation (reservation) of a pseudo-wire established between two network end points. This process is based on certain ...
    • Information retrieval on Turkish texts 

      Can, F.; Kocberber, S.; Balcik, E.; Kaynak, C.; Ocalan, H. C.; Vursavas, O. M. (John Wiley & Sons, Inc., 2008-02)
      In this study, we investigate information retrieval (IR) on Turkish texts using a large-scale test collection that contains 408,305 documents and 72 ad hoc queries. We examine the effects of several stemming options and ...
    • Partitioning models for scaling distributed graph computations 

      Demirci, Gündüz Vehbi (Bilkent University, 2019-08)
      The focus of this thesis is intelligent partitioning models and methods for scaling the performance of parallel graph computations on distributed-memory systems. Distributed databases utilize graph partitioning to provide ...
    • Performance of query processing implementations in ranking-based text retrieval systems using inverted indices 

      Cambazoglu, B. B.; Aykanat, Cevdet (Elsevier Ltd, 2006-07)
      Similarity calculations and document ranking form the computationally expensive parts of query processing in ranking-based text retrieval. In this work, for these calculations, 11 alternative implementation techniques are ...
    • Safe data parallelism for general streaming 

      Schneider S.; Hirzel M.; Gedik, B.; Wu, Kun-Lung (Institute of Electrical and Electronics Engineers, 2015)
      Streaming applications process possibly infinite streams of data and often have both high throughput and low latency requirements. They are comprised of operator graphs that produce and consume data tuples. General streaming ...
    • SLIM: A scalable location-sensitive information monitoring service 

      Bamba, B.; Wu, K.-L.; Gedik, Buğra; Liu L. (IEEE, 2013)
      Location-sensitive information monitoring services are a centerpiece of the technology for disseminating content-rich information from massive data streams to mobile users. The key challenges for such monitoring services ...
    • SLIM: scalable linkage of mobility data 

      Basık, F.; Ferhatosmanoğlu, H.; Gedik, Buğra (Association for Computing Machinery, 2020)
      We present a scalable solution to link entities across mobility datasets using their spatio-temporal information. This is a fundamental problem in many applications such as linking user identities for security, understanding ...
    • Subsequence-based feature map for protein function classification 

      Sarac, O. S.; Gürsoy-Yüzügüllü, O.; Cetin Atalay, R.; Atalay, V. (Elsevier, 2008)
      Automated classification of proteins is indispensable for further in vivo investigation of excessive number of unknown sequences generated by large scale molecular biology techniques. This study describes a discriminative ...
    • Synthesis of graphene on ultra-smooth copper foils for large area flexible electronics 

      Polat, E. O.; Balcı, Osman; Kakenov, Nurbek; Kocabaş, Coşkun; Dahiya, R. (IEEE, 2015)
      This work demonstrates the synthesis of high quality, single layer graphene on commercially available ultra-smooth copper foils. The presented method will result in improved scalability of graphene based electronic and ...
    • S³-TM : scalable streaming short text matching 

      Basık, Fuat (Bilkent University, 2014)
      Micro-blogging services have become major venues for information creation, as well as channels of information dissemination. Accordingly, monitoring them for relevant information is a critical capability. This is typically ...
    • Towards unifiying mobility datasets 

      Basık, Fuat (Bilkent University, 2019-12)
      With the proliferation of smart phones integrated with positioning systems and the increasing penetration of Internet-of-Things (IoT) in our daily lives, mobility data has become widely available. A vast variety of mobile ...