Rare Category Detection on O(dN) Time Complexity

2014 ◽  
pp. 498-509 ◽  
Author(s):  
Zhenguang Liu ◽  
Hao Huang ◽  
Qinming He ◽  
Kevin Chiew ◽  
Lianhang Ma
Keyword(s):  
Time Complexity ◽  
Rare Category

Rare Category Exploration on Linear Time Complexity

2015 ◽  
pp. 37-54 ◽  
Author(s):  
Zhenguang Liu ◽  
Hao Huang ◽  
Qinming He ◽  
Kevin Chiew ◽  
Yunjun Gao
Keyword(s):  
Time Complexity ◽  
Linear Time ◽  
Rare Category

Recognition of Birds in Blurred and Illumination Images by Local Features

2017 ◽  
Vol 7 (7) ◽  
pp. 243
Author(s):  
Suresha .M ◽  
. Sandeep
Keyword(s):  
Computer Vision ◽  
Time Complexity ◽  
Feature Detection ◽  
Feature Matching ◽  
Fast Algorithms ◽  
Local Features ◽  
Experimental Demonstration ◽  
Harris Corner ◽  
Blurred Image ◽  
Blurred Images

Local features are of great importance in computer vision. It performs feature detection and feature matching are two important tasks. In this paper concentrates on the problem of recognition of birds using local features. Investigation summarizes the local features SURF, FAST and HARRIS against blurred and illumination images. FAST and Harris corner algorithm have given less accuracy for blurred images. The SURF algorithm gives best result for blurred image because its identify strongest local features and time complexity is less and experimental demonstration shows that SURF algorithm is robust for blurred images and the FAST algorithms is suitable for images with illumination.

Rare Category Detection Algorithm Based on Weighted Boundary Degree

2012 ◽  
Vol 23 (5) ◽  
pp. 1195-1206
Author(s):  
Hao HUANG ◽  
Qin-Ming HE ◽  
Qi CHEN ◽  
Feng QIAN ◽  
Jiang-Feng HE ◽  
...  
Keyword(s):  
Detection Algorithm ◽  
Weighted Boundary ◽  
Rare Category

scholarly journals A large ovarian steroid cell tumor‐not otherwise specified with a unique combination of benign and malignant features as a challenging cause of oligomenorrhea and hirsutism in a 21‐year‐old Syrian female: a case report

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sawsan Ismail ◽  
Munawar Hraib ◽  
Rana Issa ◽  
Thanaa Alassi ◽  
Zuheir Alshehabi
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Virgin Female ◽  
Cell Tumor ◽  
Diagnostic Methods ◽  
Unique Combination ◽  
Ovarian Steroid ◽  
Not Otherwise Specified ◽  
Steroid Cell Tumor ◽  
Rare Category

Abstract Background Ovarian steroid cell tumors represent a rare category of sex cord-stromal tumors that constitute less than 0.1% of all ovarian tumors. These neoplasms are classified into three main subtypes according to the cell of origin: Leidyg cell tumors, stromal luteomas, and steroid cell tumors not otherwise specified (SCTs-NOS). The latter subtype is defined as a neoplasm of an uncertain lineage that mostly affects middle-aged women, whereas it’s rare in younger ages. Case presentation We report a case of a 21-year-old virgin female who presented to our hospital with complaints of mild abdominal pain, hirsutism, and oligomenorrhea for more than a year. Before her current admission, the patient had attended an external gynecologic clinic where she had been prescribed oral contraceptives to regulate her periods. Nevertheless, on presentation to our institution, physical examination revealed abdominal tenderness with a palpable pelvic mass and mild hirsutism in the thigh. Ultrasonography demonstrated a large left ovarian mass measuring 154 × 104 mm, and compressing the uterus. Therefore, a unilateral salpingo-oophorectomy was performed, and interestingly, pathologic examination of the large aforementioned mass alongside with immunohistochemical correlation revealed the diagnosis of a large ovarian steroid cell tumor-not otherwise specified with a unique combination of benign and malignant features. Conclusions Although ovarian steroid cell tumors represent a rare category, they must be considered in the differential diagnosis for mild virilization symptoms in young females due to the importance of early diagnosis and management. In this manuscript, we aimed to present the first case report from Syria that highlights the crucial role of detailed morphological examination for challenging cases despite the difficulties in differential diagnosis, and the absence of ancillary techniques. Furthermore, we managed to discuss a brief review of diagnostic methods, histological characteristics, and treatment recommendations.

On the time complexity of worst-case system identification

1994 ◽  
Vol 39 (5) ◽  
pp. 944-950 ◽  
Author(s):  
K. Poolla ◽  
A. Tikku
Keyword(s):  
System Identification ◽  
Time Complexity ◽  
Worst Case ◽  
Case System

A Time Complexity Gap for Two-Way Probabilistic Finite-State Automata

1990 ◽  
Vol 19 (6) ◽  
pp. 1011-1023 ◽  
Author(s):  
Cynthia Dwork ◽  
Larry Stockmeyer
Keyword(s):  
Time Complexity ◽  
Finite State Automata ◽  
Finite State ◽  
Probabilistic Finite State Automata
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