{"title":"Melanoma skin cancer detection using color and new texture features","authors":"Farzam Kharaji Nezhadian, S. Rashidi","doi":"10.1109/AISP.2017.8324108","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324108","url":null,"abstract":"Melanoma is the most prevalent skin cancer and sometimes it is very difficult to diagnose. Noninvasive dermatoscopy is used to diagnose type of cancer. Since proposed method is based on eye-deduction, diagnosis of melanoma in early stage is difficult for dermatologist. A new algorithm is presented to classify dermoscopic images into malignant and benign. Initially the images were segmented using active counter model and two features such as texture and colorful components were extracted. Texture-based features were first in this area used to diagnose disease and its results indicated high-efficacy. In the international skin imaging collaboration dataset we achieve accuracy of 97% by support vector machine classifier.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116089311","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}
{"title":"Topology tracking of static and dynamic networks based on structural equation models","authors":"S. Akhavan, H. Soltanian-Zadeh","doi":"10.1109/AISP.2017.8324119","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324119","url":null,"abstract":"Most of the complex networks have hidden topologies, therefore, their structures must first be modeled in order to conduct meaningful network analytics. Structural equation models (SEMs) are from prominent network models and they often express the relationship between exogenous inputs of the network and outputs linearly. In this paper, based on SEMs, we propose a method to track the topology of static and dynamic networks over time. The static networks have fixed topologies while the topology of the dynamic networks changes over time. The proposed tracking algorithm will improve the topology estimation in static networks, and trace the changes of topology in dynamic networks. The important advantage of the proposed method is about exogenous inputs. Ordinary SEMs assume full knowledge of the exogenous inputs, which may not always be a correct hypothesis. We assume that the exogenous inputs are piecewise stationary and in each piece, the correlation matrix of the exogenous inputs is known, which is a more practical assumption than given exogenous inputs. Numerical tests demonstrate the effectiveness of the proposed algorithm in tracking the topology of static and dynamic networks.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123398819","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}
{"title":"Classification of normal and dysphagia in patients with GERD using swallowing sound analysis","authors":"Babak Basiri, M. Vali, S. Agah","doi":"10.1109/AISP.2017.8324095","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324095","url":null,"abstract":"In recent years, acoustical analysis of the swallowing mechanism has received considerable attention and because of many damages of invasive methods, it is preferred. This paper proposes acoustic-based method to separate dysphagia patients with reflux disorder from normal persons. In this work, we have used swallowing sound of 22 individuals (11 normal and 11 abnormal). Swallowing sound signals were recorded with sound recorder over the trachea and ambient noise was removed and spectral features were extracted from the sounds. Classification is done by non-linear support vector machines, using leave-one-out. According to the experimental results, the system can classify 66.1% of total swallow signals correctly (signal accuracy) and 95.7% of the total subject in a group of healthy and dysphagia patients (subject accuracy). The experimental results show that the proposed system can provide concrete features for clinicians to diagnose dysphagia in reflux patients.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128364613","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}
{"title":"An experimental study on a learning-based approach for the push recovery of NAO humanoid robot","authors":"Milad Ghorbani, Fatemeh Kakavandi, M. T. Masouleh","doi":"10.1109/AISP.2017.8515159","DOIUrl":"https://doi.org/10.1109/AISP.2017.8515159","url":null,"abstract":"Push recovery and keeping balance in humanoid robots are two important issues which ensure that robot can perform the imitation procedure and can be readily integrated in any environment. This paper represents an approach for push detection in NAO-H25 which is based on robot's FSRs (force sensitive resistor) and learning algorithms. Two challenges are involved in this paper, namely, the low quality of NAO FSR and different levels of force which robot should detect. In this study, NAO's sensors data are gathered by Choregraphe. In the stand position (with no push) and by applying the maximum forces, FSR's output specified as base vectors in such a way that the differences between various vectors and base vectors indicate the type of the push (back, front ...). By getting different data set, the learning algorithms can be used in order to detect the type of the push based on the previous data. However, in this paper different approaches which require less computation than classical learning algorithms is used. Some specific data should be updated every time so that the robot can detect a new push better. After detection, robot should be in equilibrium, which is performed by the controlling part. Two actuators which are located in the robot's ankles are used to apply the required control signals. The experimental results indicate the correct detection in less computation volume.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125175504","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}
{"title":"Age-based human face image retrieval using zernike moments","authors":"Mohsen Eshghan Malek, Z. Azimifar, R. Boostani","doi":"10.1109/AISP.2017.8515123","DOIUrl":"https://doi.org/10.1109/AISP.2017.8515123","url":null,"abstract":"Aging is the process of appearing some variations on human face which facilitate the task of retrieving the facial image of the same individual at different ages. This paper proposes a new image retrieval which takes facial image and the age of individual as the queries and retrieves the face image or the most similar face image of that person in the selected age. The proposed method utilizes the Zernike Moments (ZM) as a feature extraction approach and Multi-Layer Perceptron (MLP) neural network as a learning method. In this approach, we use aging attributes and orthogonal moments features to imply a new application in the field of face image retrieval. Evaluation of the proposed method on FG-NET and MORPH datasets indicates the superiority of the proposed method over several state-of-the-art methods.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127523497","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}
{"title":"Generalized phase synchrony using fuzzified Johansen test","authors":"Zahra Ghanbari, M. Moradi","doi":"10.1109/AISP.2017.8324100","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324100","url":null,"abstract":"Phase synchrony is a powerful measure of analyzing nonstationary signals. We propose a new measure of phase synchrony which is the modification of GePS based on the fuzzy hypothesis testing. Generalized phase synchrony (GePS) was proposed as a multivariate index based on the linear relationships between their instantaneous frequency laws. Assessing the phase synchrony within multivariate signals is accomplished by applying the Johansen test to their intrinsic mode functions. In this paper, we developed the fuzzy version of the Johansen test. Results on the synthetic signals demonstrate the superior performance of the proposed measure compared to the original version of GePS, especially in the case of fewer numbers of channels.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128265591","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}
{"title":"Genetic algorithm and fuzzy C-means for feature selection: Based on a dual fitness function","authors":"Elmira Amiri Souri, Azadeh Mohebi, Abbas Ahmadi","doi":"10.1109/AISP.2017.8515120","DOIUrl":"https://doi.org/10.1109/AISP.2017.8515120","url":null,"abstract":"Feature selection is known as an effective approach to overcome computational complexity and information redundancy in high-dimensional data classification and clustering. Selecting best features in unsupervised learning is much harder than supervised learning because we do not have the labels of data that can guide selection algorithms to remove irrelevant and redundant features. In this paper, we propose a new approach for unsupervised feature selection based on Genetic Algorithm as a heuristic search approach and combine it with Fuzzy C-Means algorithm. We propose a dual, multi objective fitness function based on Davies-Bouldin (DB) and Calinski-Harabasz (CH) indexes. We show that these indices do not necessarily have similar behaviors. Thus, rather than simply considering their weighted average as a new fitness function, we propose a new approach to aggregate them based on their tradeoffs. Comparison of the proposed approach with popular feature selection algorithms, across different datasets, indicates the outperformance of the proposed approach for feature selection.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117318140","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}
{"title":"Arabic named entity recognition using boosting method","authors":"Mohamad Bagher Sajadi, Behrooz Minaei","doi":"10.1109/AISP.2017.8324098","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324098","url":null,"abstract":"In Natural Language Processing (NLP) studies, developing resources and tools makes a contribution to extension and Effectiveness of researches in each language. In recent years, Arabic Named Entity Recognition (ANER) has been considered by NLP researchers. While most of these researches are based on Modern Standard Arabic (MSA), in this paper, we focus on Classical Arabic (CA) literature. We propose a corpus called NoorCorp with 200k labeled words for research purposes which is annotated by expert human resources manually. We also collected about 18k proper names from old Hadith books as gazetteer which is called NoorGazet. Using ensemble learning, we develop a new approach for extraction of named entities (NEs) including person, location and organization. Adaboost.M2 algorithm, as implementation of multiclass Boosting method, is applied to train the prediction model. Results show that performance of the method is better than decision tree as the base classifier. We have used tokenizing, part of speech (POS) tagging, and base phrase chunking (BPC) to overcome linguistic obstacles in Arabic. An overall F-measure value of 96.04 is obtained. In addition, we have studied the effect of preprocessing and external resources on the system results. Finally, the proposed approach is applied on ANERCorp as MSA corpus and we have compared the results with NoorCorp.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123441265","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}
{"title":"A non-parametric mixture of Gaussian naive Bayes classifiers based on local independent features","authors":"Ali Haghpanah Jahromi, M. Taheri","doi":"10.1109/AISP.2017.8324083","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324083","url":null,"abstract":"The naive Bayes is one of the useful classification techniques in data mining and machine learning. Although naive Bayes learners are efficient, they suffer from the weak assumption of conditional independence between the attributes. Many algorithms have been proposed to improve the effectiveness of naive Bayes classifier by inserting discriminant approaches into its generative structure. Combining generative and discriminative viewpoints is done in many algorithms e.g. by use of attribute weighting, instance weighting or ensemble method. In this paper, a new ensemble of Gaussian naive Bayes classifiers is proposed based on the mixture of Gaussian distributions formed on less conditional dependent features extracted by local PCA. A semi-AdaBoost approach is used for dynamic adaptation of distributions considering misclassified instances. The proposed method has been evaluated and compared with the related work on 12 UCI machine learning datasets and achievements show significant improvement on the performance.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128734532","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}
{"title":"Abnormal event detection in indoor video using feature coding","authors":"Mona Izadi, Z. Azimifar, Gholam-Hossein Jowkar","doi":"10.1109/AISP.2017.8324127","DOIUrl":"https://doi.org/10.1109/AISP.2017.8324127","url":null,"abstract":"Abnormal event detection in surveillance systems has many applications such as building security, traffic analysis and nursing care. There is a crucial need to investigate the robust and fast methods with high performance for anomaly detection. In this work we used the result of current related methods for anomaly detection regardless of any prior assumption about normal or abnormal events. In this article we have been focused on the unsupervised computer vision algorithm in dynamic scenes. Essentially, the given approach uses a dictionary (basis set) with a completely unsupervised dynamic sparse coding to be adapted to specific data for abnormal events detection. Experimental results on entrance and exit surveillances cameras of subway stations show that the proposed method outperforms other powerfull methods in the literature.","PeriodicalId":386952,"journal":{"name":"2017 Artificial Intelligence and Signal Processing Conference (AISP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121695058","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}