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Searching for authors named "Christos Faloutsos" – sorted by Relevance.

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  • Spatial Access Methods- problem  
  • by Christos Faloutsos, C. Faloutsos, C. Faloutsos, C. Faloutsos, C. Faloutsos
  • …z-ordering- Detailed outline • What is the problem / S.A.M. • z-ordering – main idea- 3 methods – use w / B-trees; algorithms (range, knn queries – non-point (eg., region) data – analysis; variations…
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  • Indexing and mining streams  
  • by Christos Faloutsos — 2004 — In Proceedings of the 2004 ACM SIGMOD International Conference on Management of Data
  • …How can we find patterns in a sequence of sensor measurements (eg., a sequence of temperatures, or water-pollutant measurements)? How can we compress it? What are the major tools for forecasting and outlier detection? The objective of this tutorial is to provide a concise and intuitive overview of t…
  • Cited by 1 (0 self) – Add To MetaCart
  • Indexing Multimedia Databases  
  • by Christos Faloutsos
  • …INTRODUCTION 1.1 Problem definition Multimedia System: A system that can store and retrieve objects/documents with text, voice, images, animation, slides show etc. voice Query by content: ffl Efficient and ffl `complete' (no false dismissals) 2 1.2 Applications ffl education, entertainment …
  • Cited by 2 (0 self) – Add To MetaCart
  • Efficient Sensor Placement Optimization for Securing Large Water Distribution Networks  
  • by Christos Faloutsos
  • …Abstract: The problem of deploying sensors in a large water distribution network is considered, in order to detect the malicious introduction of contaminants. It is shown that a large class of realistic objective functions—such as reduction of detection time and the population protected from consumi…
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  • Scalable modeling of real graphs using Kronecker multiplication  
  • by Christos Faloutsos — 2007 — In 24th ICML
  • …Given a large, real graph, how can we generate a synthetic graph that matches its properties, i.e., it has similar degree distribution, similar (small) diameter, similar spectrum, etc? We propose to use “Kronecker graphs”, which naturally obey all of the above properties, and we present KronFit, a f…
  • Cited by 9 (2 self) – Add To MetaCart
  • and Data Mining Information recovery  
  • by C. Faloutsos, C C. Faloutsos, Christos Faloutsos
  • …■ Qopt- selectivities ■ data warehousing ■ transaction recording systems (details: in tertiary store) ■ statistical/scientific db ■ data integration (partial info from many sources) 2. SURVEY ■ Qopt- selectivity estimation – uniformity assumption [Selinger et al, 79] –... shown pessimistic [Christod…
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  • I/O Complexity for Range Queries on Region Data Stored Using an R-tree  
  • by Guido Proietti, Christos Faloutsos — 1999
  • …In this paper we study the node distribution of an R-tree storing region data, like for instance islands, lakes or human-inhabited areas. We will show that real region datasets are packed in minimum bounding rectangles (MBRs) whose area distribution follows the same power law, named REGAL (REGion Ar…
  • Cited by 15 (3 self) – Add To MetaCart
  • Fast Time Sequence Indexing for Arbitrary L p Norms  
  • by Byoung-kee Yi, Christos Faloutsos — 2000 — The VLDB Journal
  • …Fast indexing in time sequence databases for similarity searching has attracted a lot of research recently. Most of the proposals, however, typically centered around the Euclidean distance and its derivatives. We examine the problem of multi-modal similarity search in which users can choose the b…
  • Cited by 6 (0 self) – Add To MetaCart
  • Bit-Sliced Signature Files for Very Large Text Databases on a Parallel Machine Architecture  
  • by George Panagopoulos, Christos Faloutsos — 1994 — In Proc. of the 4th Inter. Conf. on Extending Database Technology (EDBT
  • …. Free text retrieval is an important problem which can significantly benefit from a parallel architecture. Signature methods have been proposed to answer text retrieval queries in parallel machines [Sta88, LF92], under the assumption that the main memory is sufficient to hold the entire signature f…
  • Cited by 2 (0 self) – Add To MetaCart
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