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ICPR
2000
IEEE
15 years 8 months ago
Automatic Left Ventricular Endocardium Detection in Echocardiograms Based on Ternary Thresholding Method
Methods for automatic detection of left ventricular endocardium in echocardiograms are required to quantitatively evaluate the functional performance of the left ventricle. This s...
Wataru Ohyama, Tetsushi Wakabayashi, Fumitaka Kimu...
IDEAS
2000
IEEE
96views Database» more  IDEAS 2000»
15 years 8 months ago
A Cost Function for Uniformly Partitioned UB-Trees
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
Volker Markl, Rudolf Bayer
DBPL
1999
Springer
114views Database» more  DBPL 1999»
15 years 8 months ago
Structured Document Transformations Based on XSL
Abstract. Based on the recursion mechanism of the XML transformation language XSL, the document transformation language DTL is defined. First the instantiation DTLreg is considere...
Sebastian Maneth, Frank Neven
FSE
2006
Springer
116views Cryptology» more  FSE 2006»
15 years 7 months ago
On Feistel Structures Using a Diffusion Switching Mechanism
We study a recently proposed design approach of Feistel structure which employs diffusion matrices in a switching way. At ASIACRYPT 2004, Shirai and Preneel have proved that large ...
Taizo Shirai, Kyoji Shibutani
CCS
2008
ACM
15 years 5 months ago
Assessing query privileges via safe and efficient permission composition
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
Sabrina De Capitani di Vimercati, Sara Foresti, Su...