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Local Saddle Point Optimization: A Curvature Exploitation Approach
International Conference on Artificial Intelligence and Statistics, 2018Gradient-based optimization methods are the most popular choice for finding local optima for classical minimization and saddle point problems. Here, we highlight a systemic issue of gradient dynamics that arise for saddle point problems, namely the ...
Leonard Adolphs +3 more
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Archives of Surgery, 1966
EMBOLIZATION to the aortic bifurcation accounts for 10% to 25% of all arterial emboli and has been associated with an operative mortality which approaches 75% and a limb salvage of approximately 15%. 1-3 Only 27 successful aortic bifurcation embolectomies had been reported prior to 1951.
J M, Porter, A J, Acinapura, D, Silver
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EMBOLIZATION to the aortic bifurcation accounts for 10% to 25% of all arterial emboli and has been associated with an operative mortality which approaches 75% and a limb salvage of approximately 15%. 1-3 Only 27 successful aortic bifurcation embolectomies had been reported prior to 1951.
J M, Porter, A J, Acinapura, D, Silver
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American Journal of Obstetrics and Gynecology, 1949
Abstract Eight hundred seventy-seven attempts at saddle block anesthesia with heavy Nupercaine solution have been analyzed. It provided complete subjective relief of at least one hour's duration in 816 cases, or 93 per cent, and incomplete subjective relief in 53 cases, or 6 per cent.
H E, SCHMITZ, J E, TOWNE, G, BABA
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Abstract Eight hundred seventy-seven attempts at saddle block anesthesia with heavy Nupercaine solution have been analyzed. It provided complete subjective relief of at least one hour's duration in 816 cases, or 93 per cent, and incomplete subjective relief in 53 cases, or 6 per cent.
H E, SCHMITZ, J E, TOWNE, G, BABA
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International Journal of Bifurcation and Chaos, 2004
We examine the dynamical roles of nonattracting chaotic sets known as chaotic saddles in an Alfvén wave system described by the driven-dissipative derivative nonlinear Schrödinger equation. These Alfvén chaotic saddles have gaps which are filled at the onset of chaos via a saddle-node bifurcation and at a chaotic transition via an interior crisis.
Rempel, E. L., Chian, A. C.-L.
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We examine the dynamical roles of nonattracting chaotic sets known as chaotic saddles in an Alfvén wave system described by the driven-dissipative derivative nonlinear Schrödinger equation. These Alfvén chaotic saddles have gaps which are filled at the onset of chaos via a saddle-node bifurcation and at a chaotic transition via an interior crisis.
Rempel, E. L., Chian, A. C.-L.
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The American Journal of Surgery, 1946
Abstract Saddle block is a form of low spinal anesthesia. A technic has been described which is controllable and yields anesthesia confined entirely to the saddle area. With slight modifications of technic, low spinal anesthesia in the usual sense of the term, may be obtained.
J, ADRIANI, D, ROMAN-VEGA
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Abstract Saddle block is a form of low spinal anesthesia. A technic has been described which is controllable and yields anesthesia confined entirely to the saddle area. With slight modifications of technic, low spinal anesthesia in the usual sense of the term, may be obtained.
J, ADRIANI, D, ROMAN-VEGA
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Wada boundary bifurcations induced by boundary saddle–saddle collision
Physics Letters A, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiao-Ming Liu +3 more
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The Arabian journal for science and engineering, 2021
K. Gangadhar +3 more
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K. Gangadhar +3 more
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Hungarian Saddle - Tiszafüred Saddle - Eastern Cultural Heritage
Acta Ethnographica Hungarica, 2005This work is based on the museological classification of the saddle collection of the Museum of Ethnography in Budapest. The collection consists of cca 150 saddles, two-thirds of which comes from Hungarian speaking areas, one third from Northern Africa, Asia and Finland.
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A climbing image nudged elastic band method for finding saddle points and minimum energy paths
, 2000G. Henkelman, B. Uberuaga, H. Jónsson
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