2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE)最新文献_第4页

An Adaptive User-Interface Based on User's Emotion 基于用户情感的自适应用户界面

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395371

K. Dalvand, M. Kazemifard

引用次数: 8

Three novel spike detection approaches for noisy neuronal data 噪声神经元数据的三种新型尖峰检测方法

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395350

Hamed Azami, Saeid Sanei

引用次数: 4

A new digital image watermarking approach based on DWT-SVD and CPPN-NEAT 一种基于DWT-SVD和CPPN-NEAT的数字图像水印方法

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395344

K. Ghaderi, F. Akhlghian, P. Moradi

引用次数: 6

Autonomous parallel parking of a vehicle in a limited space using a RBF network and a feedback linearization controller 基于RBF网络和反馈线性化控制器的车辆在有限空间内自主平行停车

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395363

N. N. Samani, J. Ghaisari, M. Danesh

{"title":"Autonomous parallel parking of a vehicle in a limited space using a RBF network and a feedback linearization controller","authors":"N. N. Samani, J. Ghaisari, M. Danesh","doi":"10.1109/ICCKE.2012.6395363","DOIUrl":"https://doi.org/10.1109/ICCKE.2012.6395363","url":null,"abstract":"In this paper, the issue of autonomous parallel parking of a vehicle in a limited space has been considered based on a parked vehicle in front. A Radial Basis Function Network (RBFN) has been developed to online path generation according to the measured distance from the parked vehicle. These measurements are obtained by employing two sonar sensors mounted in the front left corner of the vehicle. Fifth order polynomial reference paths for three different initial positions have been used to generate training data for the network. In order to use feedback linearization controller for tracking the desired parking path, two timing laws have been proposed for forward and backward maneuvers and the control laws have been designed in timing laws-domain. These timing laws have been considered such that zero velocity is obtained for the vehicle at the initial and goal points of the parking maneuver, as well as, at the point that direction of motion must change, without occurrence singularity in the control laws. Furthermore, due to change of the desired path and direction of motion based on the vehicle's configuration, the vehicle can be parked in limited area. Simulation results show the effectiveness of the proposed approach to use the nonlinear controller in order to intelligently perform the parallel parking in a limited space without knowing the parking space width and only based on distance measurements from the parked vehicle.","PeriodicalId":154379,"journal":{"name":"2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115835675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

A feasibility study on detection of Neovascularization in retinal color images using texture 利用纹理检测视网膜彩色图像新生血管的可行性研究

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395382

Maryam Vatanparast, A. Harati

{"title":"A feasibility study on detection of Neovascularization in retinal color images using texture","authors":"Maryam Vatanparast, A. Harati","doi":"10.1109/ICCKE.2012.6395382","DOIUrl":"https://doi.org/10.1109/ICCKE.2012.6395382","url":null,"abstract":"Retinal Neovascularization (NV) is one of the most important causes of diabetic blindness which emphasizes the serious need for automatic screening tools to diagnose diabetes and treat it as early as possible. In this work, the problem of NV detection in the color images of retina is considered. Previous researches in the analysis of retinal images either ignore such complex lesion or in few cases approach it superficially and pose many limitations. Obtaining a complete vessel map and then trying to identify NV is a recent methodology. Unfortunately, NV mainly affects small and hard to detect vessels, hence, we believe such an approach is inherently limited. Therefore, in this paper six different texture descriptions are proposed as features in the classification of retinal images into NV and normal group. We study application of the proposed features using a support vector machine (SVM) as a simple classifier to emphasize the importance of features against the complexity of the classifier. Feature extraction is performed on local regions of the images (128×128) to localize the lesion. A dataset of 4541 regions is considered that contains 1319 NV regions which are manually marked by an expert. The results show the proposed texture descriptors are able to reveal the NV lesion with an acceptable accuracy of around 90%.","PeriodicalId":154379,"journal":{"name":"2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122896309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

A light-weight secure broadcast for delay-tolerant applications in single-hop wireless sensor networks 用于单跳无线传感器网络中容延迟应用的轻量级安全广播

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395397

H. Nasiraee, J. B. Mohasefi

引用次数: 3

A new method for hybridizing metaheuristics for multi-objective flexible job shop scheduling 多目标柔性作业车间调度的混合元启发式新方法

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395361

R. Javadi, M. Hasanzadeh

引用次数: 4

Attribute-based recommender system for learning resource by learner preference tree 基于学习者偏好树的学习资源属性推荐系统

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395366

M. Salehi, I. N. Kmalabadi

{"title":"Attribute-based recommender system for learning resource by learner preference tree","authors":"M. Salehi, I. N. Kmalabadi","doi":"10.1109/ICCKE.2012.6395366","DOIUrl":"https://doi.org/10.1109/ICCKE.2012.6395366","url":null,"abstract":"In recent years, with growth of online learning technology, a huge amount of e-learning resources have been generated in various media formats. This growth has caused difficulty of locating appropriate learning resources to learners. A personalized recommendation is an enabling mechanism to overcome information overload occurred in the new learning environments and deliver suitable learner resources to learners. Since users express their opinions based on some specific attributes of items, this paper considers contextual information including attributes of learning resources and rating of learner simultaneously to address some problem such as sparsity and cold start problem and also improve the quality on recommendations. Learning Tree (LT) is introduced that can model the interest of learners based on attributes of learning resources in multidimensional space using learner historical accessed resources. Then, using a new similarity measure between learners, recommendations are generated. The experimental results show that our proposed method outperforms current algorithms and alleviates problems such as cold-start and sparsity.","PeriodicalId":154379,"journal":{"name":"2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132713792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Localization of hard exudates in retinal fundus image by mathematical morphology operations 用数学形态学方法定位眼底硬渗出物

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395375

Mehdi Ghafourian Fakhar Eadgahi, H. Pourreza

{"title":"Localization of hard exudates in retinal fundus image by mathematical morphology operations","authors":"Mehdi Ghafourian Fakhar Eadgahi, H. Pourreza","doi":"10.1109/ICCKE.2012.6395375","DOIUrl":"https://doi.org/10.1109/ICCKE.2012.6395375","url":null,"abstract":"Diabetic retinopathy is one of the leading causes of blindness in the world. Detection of hard exudates is an important step for early diagnosis in eye diseases such as Macular Edema(ME). If hard exudates were segmented precisely, laser treatments can be applied more effective for patients by surgeons. The possibility of blindness is very high when the hard exudates are very close to Macula region or Optic disc. Therefore, fast and accurate segmentation is one of the most important factors in elimination of hard exudates. In this paper, a method is proposed for segmentation of hard exudates in retinal color image based on morphological operation. In the proposed method, the retinal images preprocessed and optic disc and the blood vessels identified primarily and then they eliminate from the image. Finally, the Hard Exudates (HEs) are segmented by mixture of morphological operation such as Top-hat, Bottom-hat and reconstruction operations. The proposed method was tested on DIARETDB1 database and 78.28% of sensitivity was obtained. Comparing to other recent automatic method available in the literature, our proposed method can obtain acceptable exudates detection result in term of sensitivity.","PeriodicalId":154379,"journal":{"name":"2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133009121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 52

Fuzzy gravitational search algorithm 模糊引力搜索算法

2012 2nd International eConference on Computer and Knowledge Engineering (ICCKE) Pub Date : 2012-12-31 DOI: 10.1109/ICCKE.2012.6395370

Fatemeh-Sadat Saeidi-Khabisi, E. Rashedi

引用次数: 45