نتایج جستجو برای: computational cost

تعداد نتایج: 626766  

2013
Elisavet Chatzilari Georgios Liaros Spiros Nikolopoulos Yiannis Kompatsiaris

In this work we perform an extensive comparative study of approaches for mobile visual recognition by simultaneously evaluating the performance and the computational cost of state-of-the-art key-point detection, feature extraction and encoding algorithms. Every step is independently tested so that its contribution to the final computational cost can be measured. The widely used OpenCV library i...

1998
Seongsoo Lee Soo-Ik Chae

We propose a new motion estimation algorithm and its block-matching criteria using low-resolution quantization. The proposed algorithm reduces both the huge computational cost of the full search algorithm and the performance degradation of the fast algorithms by matching the low-resolution images. Two search steps called the lowresolution search and the full-resolution search are employed. Simu...

In the past years, a number of algorithms have been introduced for synthesis aperture radar (SAR) imaging. However, they all suffer from the same problem: The data size to process is considerably large. In recent years, compressive sensing and sparse representation of the signal in SAR has gained a significant research interest. This method offers the advantage of reducing the sampling rate, bu...

Kais Zaman Md. Asadujjaman

In this paper, we propose formulations and algorithms for robust portfolio optimization under both aleatory uncertainty (i.e., natural variability) and epistemic uncertainty (i.e., imprecise probabilistic information) arising from interval data. Epistemic uncertainty is represented using two approaches: (1) moment bounding approach and (2) likelihood-based approach. This paper first proposes a ...

Journal: :مهندسی صنایع 0
سحر فلاح صنمی کارشناس ارشد رشته مدیریت صنعتی، دانشکدة اقتصاد و مدیریت، دانشگاه سمنان رضا رمضانیان استادیار رشتۀ مهندسی صنایع، دانشکدة مهندسی صنایع، دانشگاه صنعتی خواجه نصیرالدین طوسی محسن شفیعی نیک آبادی استادیار رشتۀ مدیریت صنعتی، دانشکدة اقتصاد و مدیریت، دانشگاه سمنان

the aim of this paper is to study a multi-product, multi-period production systems in a hybrid flow shop so that lot-sizing and scheduling will be detemined simultaneously. a new mixed-integer programming model is proposed to formulate the studied problem. the objective function in this investigation includes the total cost of production, inventory and external supply. in the case of not satisf...

Journal: :journal of linear and topological algebra (jlta) 0
m nili ahmadabadi f ahmad spain g yuan china a azzam assuite university

a systematic way is presented for the construction of multi-step iterative method with frozen jacobian. the inclusion of an auxiliary function is discussed. the presented analysis shows that how to incorporate auxiliary function in a way that we can keep the order of convergence and computational cost of newton multi-step method. the auxiliary function provides us the way to overcome the singul...

2014
Anuj Kumar Singh Ram Shanmugam Yuliang Zheng Yiliang Han Xiaoyuan Yang Ren-Junn Hwang Chih-Hua Lai Feng-Fu Su Mohsen Toorani Ali Asghar Beheshti Ping Wei Yuming Wang Yupu Hu

Signcryption is a new cryptographic approach which provides authentication and encryption simultaneously in a single logical step. The aim is to reduce the cost of signature-then-encryption approach. This cost includes computational cost and communication cost. Furthermore some signcryption schemes are based on RSA while some are based on elliptic curve. This paper provides a critical review of...

2002
Tetsuji Nakagawa Taku Kudo Yuji Matsumoto

This paper presents a revision learning method that achieves high performance with small computational cost by combining a model with high generalization capacity and a model with small computational cost. This method uses a high capacity model to revise the output of a small cost model. We apply this method to English partof-speech tagging and Japanese morphological analysis, and show that the...

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