{"title":"Neural networks for sentiment analysis on Twitter","authors":"B. Duncan, Yanqing Zhang","doi":"10.1109/ICCI-CC.2015.7259397","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259397","url":null,"abstract":"The online medium has become a significant way that people express their opinions online. Sentiment analysis can be used to find out the polarity of an opinion, such as positive, negative, or neutral. Sentiment analysis has applications such as companies getting their customer's opinions on their products, political sentiment analysis, or opinions on movie reviews. Recent research has involved looking at text from online blogs, tweets, online movie reviews, etc. to try and classify the text as being positive, negative, or neutral. For this research, a feedforward neural network will be experimented with for sentiment analysis of tweets. The training set of tweets are collected using the Twitter API using positive and negative keywords. The testing set of tweets are collected using the same positive and negative keywords.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128789862","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":"Formal properties and rules of concept algebra","authors":"M. Valipour, Yingxu Wang","doi":"10.1109/ICCI-CC.2015.7259376","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259376","url":null,"abstract":"Concept algebra is a denotational mathematics for rigorously manipulating formal concepts and their algebraic operations in knowledge representation, semantic analyses, and machine learning. Properties of concept algebra are formally studied in order to elaborate the nature of formal concepts and their algebraic operations. This leads to a set of algebraic rules in the categories of relational, reproductive, and compositional operations on formal concepts. Relationship between algebraic operations of concept algebra is rigorously described. Proofs are provided for the algebraic rules of concept algebra elaborated by examples. This work enables a rigorous implementation of concept algebra in cognitive knowledge base manipulations and cognitive machine learning.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116208428","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":"Support vector machines and Word2vec for text classification with semantic features","authors":"Joseph Lilleberg, Yun Zhu, Yanqing Zhang","doi":"10.1109/ICCI-CC.2015.7259377","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259377","url":null,"abstract":"With the rapid expansion of new available information presented to us online on a daily basis, text classification becomes imperative in order to classify and maintain it. Word2vec offers a unique perspective to the text mining community. By converting words and phrases into a vector representation, word2vec takes an entirely new approach on text classification. Based on the assumption that word2vec brings extra semantic features that helps in text classification, our work demonstrates the effectiveness of word2vec by showing that tf-idf and word2vec combined can outperform tf-idf because word2vec provides complementary features (e.g. semantics that tf-idf can't capture) to tf-idf. Our results show that the combination of word2vec weighted by tf-idf and tf-idf does not outperform tf-idf consistently. It is consistent enough to say the combination of the two can outperform either individually.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116214131","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":"Recognizing the sentiments of web images using hand-designed features","authors":"Eunjeong Ko, Eun Yi Kim","doi":"10.1109/ICCI-CC.2015.7259380","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259380","url":null,"abstract":"Recently, understanding sentiment expressed in social images and multimedia has attracted increasing attention by researchers. For sentiment analysis of social image, we should identify the visual features with high relations to human sentiments and then conduct analysis based on such visual features. Here, two visual vocabularies are built from color compositions and SIFT (scale-invariant feature transform) descriptors. Thereafter, the pLSA (probabilistic latent semantic analysis)-learning is employed to predict the human sentiment hidden in social images from visual words. The proposed system was evaluated to the images collected from Photo.net and Google and 15 Kobayashi's sentiments were considered to label the images. The results were compared with man-labeled ground truth and then the proposed method shows the performance with an F1-measure results of above 70%.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132727366","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":"Novel biometric features fusion method based on possibility theory","authors":"Hanêne Guesmi, H. Trichili, A. Alimi, B. Solaiman","doi":"10.1109/ICCI-CC.2015.7259419","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259419","url":null,"abstract":"In this paper, we propose a novel biometric modalities fusion method based on possibility theory. We have integrated this method in a bimodal biometric system. This biometric system is based on the fingerprint and the iris modalities to identify a person. The process of this method consists of two main phases: the features selection phase, and the fusion phase. In the first phase, we select the most relevant features by a proposed selection method based on the genetic algorithm and the possibility theory. Then, in the second phase, the selected features of different biometric modalities are fused by the novel proposed fusion method based on the possibility theory. An experimental evaluation of the bimodal biometric system which used the proposed fusion method shows the good performance of the possibility reasoning in the biometric features fusion.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123738907","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":"Research of micro-blog diffusion effect based on analysis of retweet behavior","authors":"Wei Hou, Yuan Huang, Kao Zhang","doi":"10.1109/ICCI-CC.2015.7259394","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259394","url":null,"abstract":"Research on the diffusion effect of micro-blog plays an important role in improving marketing efficiency, strengthening monitoring public opinion and accurately discovering hotspot etc. To solve the problems not taking users' differences into consideration in the previous research, this paper proposes an algorithm to predict scale and depth of retweet massages based on analysis of retweet behavior. With the combination of LR algorithm and nine related features extracted from micro-blog users themselves, their relationships and micro-blog contents, we proposes a prediction model of retweet behavior. Based on this model, we proposes an algorithm to predict the diffusion effect, which considers the character of information spreading along users and does statistical analysis of adjacent users iteratively. Experimental results on Sina micro-blog dataset show that the algorithm has a prediction accuracy of 87.1% and 81.6% in scale and depth respectively, which indicates the model works well.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123852916","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}
C. Sandhya, G. Srinidhi, R. Vaishali, M. Visali, A. Kavitha
{"title":"Analysis of speech imagery using brain connectivity estimators","authors":"C. Sandhya, G. Srinidhi, R. Vaishali, M. Visali, A. Kavitha","doi":"10.1109/ICCI-CC.2015.7259410","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259410","url":null,"abstract":"The estimation of brain connectivity allows description of the functional links established between different cortical areas during different forms of mental imagery. Speech imagery is a form of mental imagery, which refers to the activity of talking to oneself in silence. In this paper, coherence, an EEG synchronicity parameter is calculated to quantitatively analyze the concurrence of the different regions of the brain while performing speech imagery. Brain connectivity measures of speech imagery based on EEG were also investigated to understand brain function. In particular, Granger causality parameters such as Partial Directed Coherence (PDC) and Directed Transfer Function (DTF) measurements based on MVAR models are applied to multi-channel EEG data to find direction and strength of the connectivity patterns of the given speech imagery task. From the results obtained, it can be observed that there is a bilateral brain interaction of frontal and temporal brain regions andthe cross electrode coherence of the left frontal lobe was found to be high during speech production and that of the left temporal lobe was found to be high during speech imagery due to the proximity of the electrodes to the Broca's and Wernicke's area respectively. It can also be concluded that the direction of information flow from left hemisphere of the brain is more than right hemisphere of the brain using brain connectivity parameters based on MVAR models. Thus, the perceptibility of verbalizations in the brain, or in other words, speech imagery can be captured through EEG and the observations suggest that the proposed methodology is a promising non-invasive approach to study directional connectivity in the brain between mutually interconnected neural populations.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129373694","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 analytical multiobjective optimization of joint spectrum sensing and power control in cognitive radio networks","authors":"Hieu V. Dang, W. Kinsner","doi":"10.1109/ICCI-CC.2015.7259360","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259360","url":null,"abstract":"The paper deals with the problem of joint spectrum sensing and power control optimization for a multichannel, multiple-user cognitive radio network. In particular, we investigate trade-off factors in designing efficient spectrum sensing techniques to maximize the throughputs and minimize the interferences. To maximize the throughputs of secondary users and minimize the interferences to primary users, it requires for a joint determination of the sensing and transmission parameters of the secondary users, such as sensing times, decision threshold vectors, and power allocation vectors. There is a conflict between these two objectives, thus a multiobjective optimization problem is introduced. We propose an analytical approach based on Newton's methods and nonlinear barrier method to solve this large-scale joint multiobjective optimization problem.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121210088","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}
Dong Ren, Long Ma, Yanqing Zhang, Rajshekhar Sunderraman, P. Fox, A. Laird, J. Turner, Matthew D. Turner
{"title":"Online biomedical publication classification using Multi-Instance Multi-Label algorithms with feature reduction","authors":"Dong Ren, Long Ma, Yanqing Zhang, Rajshekhar Sunderraman, P. Fox, A. Laird, J. Turner, Matthew D. Turner","doi":"10.1109/ICCI-CC.2015.7259391","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259391","url":null,"abstract":"Text annotation, the assignment of metadata to documents, requires significant time and effort when performed by humans. A variety of text mining methods have been used to automate this process, many of them based on either keyword extraction or word counts. However, when using keywords as text classification features, it is common to find that (1) the number of training instances is much less than the number of features extracted. This complexity affects text classification performance. Another challenge is (2) the assignment of multiple, non-exclusive labels to the documents (multi-label classification). This problem makes text classification more complicated when compared with single label classification. We use, as an example, a set of expertly labeled documents from the human functional neuroimaging literature, and we apply a Multi-instance Multi-label (MIML) classification algorithm to the problem. To address (1), we apply a feature reduction approach to reduce the feature dimension. For (2) we use an MIML algorithm called MIMLfast to implement the multi-label classification.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134316629","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 information-theoretic feature selection method based on estimation of Markov blanket","authors":"Hongzhi Liu, Zhonghai Wu, Xing Zhang, D. Hsu","doi":"10.1109/ICCI-CC.2015.7259406","DOIUrl":"https://doi.org/10.1109/ICCI-CC.2015.7259406","url":null,"abstract":"Feature selection is an essential process in computational intelligence and statistical learning. It is often used to reduce the requirement of data measurement and storage and defy the curse of dimensionality in order to improve prediction performance. Although there exist many related works, it remains a challenging problem. In this paper, we first examine a set of desirable characteristics for a good feature selection method and find that most of the existing feature selection methods have fulfilled only part (not all) of these characteristics. We then propose a new feature selection method based on estimation of Markov blanket (FS-EMB) which has all the desirable characteristics. Experimental results based on benchmark data sets show that when combined with different classifiers, FS-EMB performs similar to or better than other state-of-the-art feature selection methods. More over, the performance is stable with a smaller standard deviation with respect to the average performance improvement.","PeriodicalId":328695,"journal":{"name":"2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121444297","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}