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Issue Info: 
  • Year: 

    2022
  • Volume: 

    2
  • Issue: 

    3
  • Pages: 

    25-37
Measures: 
  • Citations: 

    0
  • Views: 

    25
  • Downloads: 

    1
Abstract: 

Due to the increasing amount of video data, a lot of research has been done in the field of retrieving and categorizing this type of data. On the other hand, with the growing popularity of football and the increasing number of its audiences, the importance of automatic and real-time extraction of statistics and information about soccer matches has increased. One of the critical and challenging tasks in soccer video analysis is the detection of players’ blobs and regions, along with identifying the teams related to the players. This task encounters many challenges, including grass loss in the playfield, the presence of playfield lines and players' shadows, the overlapping of players with objects and other players, and different shapes of players in different situations. This paper proposes a framework for detecting players and their related teams. For this purpose, an object-sieve-based method is used to detect players’ blobs, and a genetic Algorithm is used to identify their related teams. Each chromosome of the genetic Algorithm is a window that lies on one blob whose fitness function shows how much its color and shape characteristics fit with the uniforms of each of the two teams. The proposed method was evaluated by 50 different frames of broadcast soccer videos, including 563 players, and 40 different sub-images, including 84 players. The results show 98% and 91.6% precision for player detection and Labeling, respectively.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: 

ELECTRONIC INDUSTRIES

Issue Info: 
  • Year: 

    2015
  • Volume: 

    6
  • Issue: 

    3
  • Pages: 

    67-79
Measures: 
  • Citations: 

    0
  • Views: 

    1093
  • Downloads: 

    0
Abstract: 

In recent years, Plagiarism has been easier through increasing development of internet and online papers. Plagiarism is to reuse or copy a text without referencing to the original author. Plagiarism or fraud in schools and universities will be a stimulating factor for researchers. If plagiarism was not identified correctly, cheaters and Plagiarists could get results that are not deserved. This paper presents a method based on the semantic role Labeling (SRL) and Genetic Algorithm (GA). The Proposed method works on English texts. Results of the experiments on PAN-PC-9 corpus demonstrate that the proposed method improves values of evaluation parameters such as recall, precision and F-measure, comparing with previous approaches in plagiarism detection.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    1392
  • Volume: 

    20
Measures: 
  • Views: 

    345
  • Downloads: 

    0
Abstract: 

لطفا برای مشاهده چکیده به متن کامل (PDF) مراجعه فرمایید.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: 

Scientia Iranica

Issue Info: 
  • Year: 

    2020
  • Volume: 

    27
  • Issue: 

    5 (Transactions E: Industrial Engineering)
  • Pages: 

    2621-2634
Measures: 
  • Citations: 

    0
  • Views: 

    93
  • Downloads: 

    286
Abstract: 

Data mining is a powerful new technology to extract hidden information from data warehouses. Data mining analyzes data from different perspectives and finds useful patterns and knowledge from large volumes of raw data. Clustering is one of the main methods of data mining. K-means Algorithm is one of the most common clustering Algorithms due to its efficiency and ease of use. One of the challenges of clustering is to identify the appropriate label for each cluster. The selection of a label is done so as to provide a proper description of cluster records. In some cases, choosing an appropriate label is not easy due to the results and structure of each cluster. The aim of this study is to present an Algorithm based on the K-means clustering in order to facilitate the allocation of labels to each cluster.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2023
  • Volume: 

    18
  • Issue: 

    2
  • Pages: 

    153-168
Measures: 
  • Citations: 

    0
  • Views: 

    47
  • Downloads: 

    6
Abstract: 

A difference Labeling of a graph G is an injective function f: V (G) → N ∪ {0} together with the weight function f∗ on E(G) given by f∗(uv) = |f(u)-f(v)| for every edge uv in G. The collection of subgraphs induced by the edges of the same weight is a decomposition of G and is called the common weight decomposition of G induced by f. Let ϒf denote the collection of all the paths taken from each member of the common weight decomposition induced by f. A difference Labeling f of G is said to be a graphoidal difference Labeling if ϒf is an acyclic graphoidal decomposition of G. This paper initiates a study on this concepts.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Author(s): 

SAMET H.

Journal: 

JOURNAL OF ACM

Issue Info: 
  • Year: 

    1981
  • Volume: 

    28
  • Issue: 

    3
  • Pages: 

    487-501
Measures: 
  • Citations: 

    1
  • Views: 

    137
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2019
  • Volume: 

    51
  • Issue: 

    2
  • Pages: 

    1-7
Measures: 
  • Citations: 

    0
  • Views: 

    202
  • Downloads: 

    0
Abstract: 

Let G be a graph and f: V (G)! {1, 2, 3, . . . . . |V (G)|} be a bijection. Let puv = f(u)f(v) and duv =        hf(u) f(v) i if f(u)  f(v) hf(v) f(u)i if f(v)  f(u) for all edge uv 2 E(G). For each edge uv assign the label 1 if gcd(puv, duv) = 1 or 0 otherwise. f is called PD-prime cordial Labeling if |ef (0) − ef (1)|  1 where ef (0) and ef (1) respectively denote the number of edges labelled with 0 and 1. A graph with admit a PD-prime cordial Labeling is called PD-prime cordial graph.

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Author(s): 

TUSI MOHSEN

Journal: 

Ulum-i Hadith

Issue Info: 
  • Year: 

    2010
  • Volume: 

    15
  • Issue: 

    2 (56)
  • Pages: 

    114-142
Measures: 
  • Citations: 

    0
  • Views: 

    1179
  • Downloads: 

    0
Abstract: 

Relation between religion and sociological theories is the most important concern of scholars who study in the field of social sciences.Different views have been expressed in this regard. To draw them on a line one must put on one side those views which reject the existence of any relation between them. On the other side those who believe that faith can take part in this area. Islam as a complete religion has solutions both for spiritual guidance of man and for man’s social life. We should just discover these solutions. New theories such as sociological theories guide us to discover these laws.The present paper lies at the middle of this line between two sides of it. The author has a middle approach. He starts his research with a little question in the field of sociology namely social-Labeling theory and then explores different aspects of this theory and highlights its most important points and finally makes a comparison between them and hadith sources trying to find an answer.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Writer: 

Salari Rosita

Issue Info: 
  • Year: 

    2016
  • Volume: 

    3
Measures: 
  • Views: 

    210
  • Downloads: 

    48
Abstract: 

BACKGROUND: ALLERGIES ARE THE IMMUNE SYSTEM’S INADEQUATE OR EXAGGERATED REACTION TO SUBSTANCES WHICH, IN MOST CASES, DO NOT LEAD TO SYMPTOMS. THE SYMPTOMS OF ALLERGIC DISEASES CAN APPEAR AFTER THE INGESTION OF CERTAIN KINDS OF FOOD (EGG, MILK, PEANUT, HAZELNUT, SOYBEANS, CEREALS, FISH, CRUSTACEANS AND SULPHITE IN CONCENTRATIONS OF 10 MG/KG OR MORE)...

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    0
  • Volume: 

    1
  • Issue: 

    3
  • Pages: 

    35-47
Measures: 
  • Citations: 

    0
  • Views: 

    0
  • Downloads: 

    0
Abstract: 

با گسترش شبکه های کامپیوتری و رشد روزافزون کاربردهای مبتنی بر اینترنت اشیاء (IoT)، شبکه های حسگر بی سیم (WSN)، و شبکه های پویا مانند MANET، مساله بهینه سازی مسیریابی به یکی از چالش های بنیادین در علوم رایانه و مهندسی شبکه تبدیل شده است. الگوریتم های سنتی همچون دایکسترا و بلمن-فورد اگرچه در محیط های پایدار کارایی نسبی دارند، اما به دلیل محدودیت در سازگاری با تغییرات دینامیک و چندهدفه بودن مسائل جدید، پاسخگوی نیازهای محیط های مدرن نیستند. در این راستا، هدف اصلی این مقاله، بررسی جامع نقش و کارایی الگوریتم فاخته (Cuckoo Optimization Algorithm - COA) به عنوان یک الگوریتم فراابتکاری نوین در بهینه سازی مسیریابی شبکه های کامپیوتری است. الگوریتم فاخته با الهام از رفتار تولیدمثل انگلی پرنده فاخته و سازوکار پرش های Lévy، به عنوان رویکردی ساده اما توانمند به ویژه برای حل مسائل غیرخطی، چندهدفه و پویا معرفی شده است. در این مقاله، ضمن تبیین ساختار، مراحل اجرایی و مزایا و معایب الگوریتم فاخته نسبت به روش های دیگر (مانند PSO، GA و ACO)، به مرور مطالعات میدانی و شبیه سازی های انجام شده در حوزه های WSN، MANET، SDN و IoT پرداخته شده است. نتایج پژوهش های گذشته نشان می دهد استفاده از COA سبب کاهش محسوس مصرف انرژی، بهبود نرخ تحویل بسته و افزایش طول عمر شبکه نسبت به الگوریتم های جایگزین شده است. همچنین، کاربردهای عملی COA در محیط های پویا و دارای تغییرات سریع توپولوژی، قابلیت ها و برتری های بیشتری نسبت به رقبای خود آشکار ساخته است. در ادامه، مقاله با تمرکز بر نتایج مقایسه ای میان COA و دیگر الگوریتم های فراابتکاری، نشان می دهد که الگوریتم فاخته به سبب سادگی ساختار، سرعت همگرایی بالا و توان جستجوی جامع تر، برای کاربردهای شبکه ای خصوصاً در سناریوهای داده محور و نوظهور، انتخاب مناسبی است. با این حال، چالش هایی نظیر نیاز به تنظیم بهینه پارامترها، تطبیق محدود با مسائل گسسته و عدم وجود استانداردسازی جامع نیز شناسایی شده است. بر همین اساس، پیشنهادهای پژوهشی آینده، بهره گیری از ترکیب COA با سایر الگوریتم ها، توسعه نسخه های یادگیری محور و به کارگیری آن در محیط های واقعی و بزرگ مقیاس را مورد تاکید قرار می دهد.

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