To establish the institutional mechanism for land conflict coordination in China, a case-based reasomng system is developed as an intelligent support and effective manner to resolve such issues. The establishment of t...
详细信息
To establish the institutional mechanism for land conflict coordination in China, a case-based reasomng system is developed as an intelligent support and effective manner to resolve such issues. The establishment of the case library is discussed, previous land conflict cases are archived in a structural representation format for retrieval, and the similarity algorithm is adopted to compare the case features. Group tests show a good classification performance, which reveals that the system is feasible.
Purpose: To discuss the problems arising from hierarchical cluster analysis of co-occurrence matrices in SPSS, and the corresponding solutions. Design/methodology/approach: We design different methods of using the S...
详细信息
Purpose: To discuss the problems arising from hierarchical cluster analysis of co-occurrence matrices in SPSS, and the corresponding solutions. Design/methodology/approach: We design different methods of using the SPSS hierarchical clustering module for co-occurrence matrices in order to compare these methods. We offer the correct syntax to deactivate the similarity algorithm for clustering analysis within the hierarchical clustering module of SPSS. Findings: When one inputs co-occurrence matrices into the data editor of the SPSS hierarchical clustering module without deactivating the embedded similarity algorithm, the program calculates similarity twice, and thus distorts and overestimates the degree of similarity. Practical implications: We offer the correct syntax to block the similarity algorithm for clustering analysis in the SPSS hierarchical clustering module in the case of co-occurrence matrices. This syntax enables researchers to avoid obtaining incorrect results. Originality/value: This paper presents a method of editing syntax to prevent the default use of a similarity algorithm for SPSS's hierarchical clustering module. This will help researchers, especially those from China, to properly implement the co-occurrence matrix when using SPSS for hierarchical cluster analysis, in order to provide more scientific and rational results.
Currently, the era where social media can present various facilities can answer the needs of the community for information and utilization for socio-economic interests. But the other impact of the presence of social m...
详细信息
Currently, the era where social media can present various facilities can answer the needs of the community for information and utilization for socio-economic interests. But the other impact of the presence of social media opens an ample space for the existence of information or hoax news about an event that is troubling the public. The hoax also provides cynical provocation, which is inciting hatred, anger, incitement to many people, directly influencing behavior so that it responds as desired by the hoax makers. Fake news is playing an increasingly dominant role in spreading Misinformation by influencing people's Perceptions or knowledge to distort their awareness and decision-making. A framework is develope dataset collection of hoax gathered using web crawlers from several websites, using classification techniques. This hoax news will be categorized into several detection parameters including, page URL, title hoax news, publish date, author, and content. Matching each word hoax using the similarity algorithm to produce the accuracy of the hoax news uses the rule-based detection method. Experiments were carried out on eleven thousand-hoax news used as training datasets and testing data sets;this data set for validation using similarity algorithms, to produce the highest accuracy of hoax text similarity. In this study, each hoax news will label into four categories, namely, Fact, Hoax, Information, Unknown. Contributions propose Automatic detection of hoax news, Automatic Multilanguage Detection, and a collection of datasets that we gather ourselves and validation that results in four categories of hoax news that have measured in terms of text similarity using similarity techniques. Further research can be continued by adding objects hate speech, black campaign, blockchain technique to ward off hoaxes, or can produce algorithms that produce better text accuracy.
In the distance education platform, it is an important topic that how to intelligently help learner to find right helperTo address the problem, a set of matching model of problem and helper based on problem similarity...
详细信息
In the distance education platform, it is an important topic that how to intelligently help learner to find right helperTo address the problem, a set of matching model of problem and helper based on problem similarity under mutual learning system environment was presented with multi-agent technologyThe model introduces concept of problem gathering, namely to determine similarity between helper and problem by computing similarity among many problems and proposed problemsBy returning helper agent that has many similarities with proposed problem, the circumstance of non-relevance between matching problem and proposed problem can be avoidedMeanwhile, the concept of valid problem number, valid matching problem number and average similarity of valid matching problem, it can ensure effectively solving problem of helper matchingExperiment results show that the helper matching model can achieve ideal matching effect1Introduction
Personalized recommendation method is one of the representative solutions to solve the contradiction between information diversification and user demand specificity. Due to the limitations of the algorithm and the dif...
详细信息
Personalized recommendation method is one of the representative solutions to solve the contradiction between information diversification and user demand specificity. Due to the limitations of the algorithm and the difficulty of item feature extraction, the recommendation results of content-based recommendation system are too specialized to provide users with novel recommendation items. This paper tries to find a method of interest and preference diffusion to improve the recommendation specialization. In this paper, a comprehensive recommendation method based on information hierarchy distance and information loss distance in domain ontology is proposed. This method comprehensively calculates the similarity between items through similarity algorithms based on information hierarchy distance and information loss distance. The research shows that: the information loss distance in the domain ontology can have a great impact on the recommendation results, and the comprehensive recommendation method based on the information hierarchy distance and information loss distance can effectively improve the diversity and usefulness of the recommendation results.
Along with information on the Internet increasing dramatically, People usually search and locate information that they needed by search engines. Clustering search engine results is an effective method to help people s...
详细信息
Along with information on the Internet increasing dramatically, People usually search and locate information that they needed by search engines. Clustering search engine results is an effective method to help people select information needed from the list of search engine results. The paper presents a clustering algorithm of no-word-segmentation for Chinese search engine results (CANWS). The algorithm firstly preprocesses the search engine results and then computes the similarities of the results based on the same sub-string. Lastly it clusters the results based on the similarity matrix. The paper also gives test and analysis of the algorithm performance by experiments.
This paper came up with introducing four dimensions: learning mood, cognitive state, learning style and interest preference and so on for the semantic web, based on the analysis the present situation student models at...
详细信息
This paper came up with introducing four dimensions: learning mood, cognitive state, learning style and interest preference and so on for the semantic web, based on the analysis the present situation student models at home and abroad. Realized to classify learners and establish student models which used an improved similarity algorithm, and the student model applied to adaptive learning system, which not only could solve the lack semantic in adaptive learning system, and greatly improves the practicability, intelligent and personalized.
For the better and stronger information retrieval function, the sequence of search result queue and the correlation of query expression are the key problems that could be computed by similarity algorithm. A new method...
详细信息
For the better and stronger information retrieval function, the sequence of search result queue and the correlation of query expression are the key problems that could be computed by similarity algorithm. A new method which is ontology-based weighted semantic tree similarity algorithm (OWSTS) is presented here. In this paper, the construction method of OWSTS and the implementation of similarity algorithm are introduced firstly. And an ontology-based information retrieval prototype system of mechanical products domain is developed secondly. Finally the relative accuracy of retrieval results by OWSTS and generally used cosine vector space based similarity algorithm (TF*IDF) are compared. The successful running of this system shows that OWSTS algorithm is feasible for information retrieval and the similarity algorithm makes the sequence of search result queue fit for users' semantic requirement.
Aiming at the sparsity problem existing in the traditional collaborative filtering algorithm, this paper proposed an improved similarity computing method that integrated user rating behavior and item attributes. The s...
详细信息
Aiming at the sparsity problem existing in the traditional collaborative filtering algorithm, this paper proposed an improved similarity computing method that integrated user rating behavior and item attributes. The sparse matrix is evaluated and predicted by the similarity calculation method, then the prediction rating was filled in the sparse matrix. At the same time, in the context of big data, the data scale was too large to affect the execution efficiency of the recommendation system. Hadoop platform was adopted to implement collaborative filtering recommendation algorithm based on the improved similarity model. Based on large-scale data segmentation, the distributed parallel processing was carried out. The proposed improved algorithm is verified by Movielens which was an internationally standard data set. The verification results show that the personalized recommendation system based on Hadoop platform and improved recommendation algorithm has better recommendation performance.
暂无评论