检索结果-内蒙古大学图书馆

11th International Conference on Web information systems and Technologies, WEBIST 2015

作者： Walha, Afef Ghozzi, Faiza Gargouri, Faïez Multimedia InfoRmation Systems and Advanced Computing Laboratory Sfax Tunisia Institute of Computer Science and Multimedia Sfax University Sfax Tunisia

ISBN: (纸本)9789897581069

Considered as a rich source of information, social networking sites have been created lot of buzz because people share and discuss their opinions freely. Sentiment analysis is used for knowing voice or response of crowd for products, services, organizations, individuals, events, etc. Due to their importance, people opinions are analyzed in several domains including information retrieval, semantic web, text mining. These researches define new classification techniques to assign positive or negative opinion. Decisional systems like WeBhouse, known by their data-consuming must be enriched by this kind of pertinent opinions to give better help to decision makers. Nevertheless, cleaning and transformation processes recognized by several approaches as a key of WeBhouse development, don't deal with sentiment analysis. To fulfill this gap, we propose a new analysis algorithm which determines user's sentiment score of a post shared on the social network Facebook. This algorithm analyzes user's opinion depending on opinion terms and emoticons included in his comments. This algorithm is integrated in transformation process of ETL approach.

关键词： Sentiment analysis

来源：评论

学校读者我要写书评

暂无评论

Decision tree transformation for knowledge warehousing 17

Decision tree transformation for knowledge warehousing

引用

17th International Conference on Enterprise information systems, ICEIS 2015

作者： Ayadi, Rim Hachaichi, Yasser Alshomrani, Saleh Feki, Jamel Multimedia InfoRmation Systems and Advanced Computing Laboratory Sakiet Ezzit Tunisia University of Sfax Sfax Tunisia Faculty of Computing and IT University of Jeddah Jeddah Saudi Arabia

ISBN: (纸本)9789897580970

Explicit knowledge extracted from data, formalized tacit knowledge from experts or even knowledge existing in business sources may be in several heterogeneous formal representations and structures: as rules, models, functions, etc. However, a knowledge warehouse should solve this structural heterogeneity before storing knowledge. This requires specific tasks of harmonizing. This paper first presents our proposed definition and architecture of a knowledge warehouse, and then presents some languages for knowledge representations as particular the MOT (Modeling with Object Types) language. In addition, we suggest a metamodel for the MOT, and a metamodel for the explicit knowledge obtained using decision trees technique. As we aim to represent knowledge having different modeling formalisms into MOT, as a unified model, then we suggest a set of transformation rules that assure the move from the decision tree source model into the MOT target model. This work is still in progress, it is currently completed with tranformations for additional.

关键词： Data mining

来源：评论

学校读者我要写书评

暂无评论

Arabic named entity recognition process using transducer cascade and Arabic wikipedia 10

Arabic named entity recognition process using transducer cas...

引用

10th International Conference on Recent Advances in Natural Language Processing, RANLP 2015

作者： Mesmia, Fatma Ben Friburger, Nathalie Haddar, Kais Maurel, Denis University of Sfax Laboratory MIRACL Multimedia InfoRmation Systems and Advanced Computing Laboratory Tunisia University François Rabelais of Tours LI Computer laboratory France

Transducers namely transducer cascades are used in several NLP-applications such as Arabic named entity recognition (ANER). To experiment and evaluate an ANER process, a weight coverage corpus is necessary. In this paper, we propose an ANER method based on transducer cascade. The proposed transducer cascade is generated with the CasSys tool integrated in Unitex linguistic platform. The experimentation of our method is done on a Wikipedia corpus. The Wikipedia text format is obtained with Kiwix tool. The experiment results are satisfactory based on calculated measures.

关键词： Transducers

来源：评论

学校读者我要写书评

暂无评论

Detection of semantic relationships between terms with a new statistical method

Detection of semantic relationships between terms with a new...

引用

10th International Conference on Web information systems and Technologies, WEBIST 2014

作者： Ksentini, Nesrine Tmar, Mohamed Gargouri, Faïez MIRACL: Multimedia InfoRmation Systems and Advanced Computing Laboratory University of Sfax Higher Institute of Computer Science and Multimedia of Sfax Sfax Tunisia

ISBN: (纸本)9789897580246

Semantic relatedness between terms plays an important role in many applications, such as information retrieval, in order to disambiguate document content. This latter is generally studied among pairs of terms and is usually presented in a non-linear way. This paper presents a new statistical method for detecting relationships between terms called Least Square Mehod which defines these relations linear and between a set of terms. The evaluation of the proposed method has led to optimal results with low error rate and meaningful relationships. Experimental results show that the use of these relationships in query expansion process improves the retrieval results.

关键词： information retrieval

来源：评论

学校读者我要写书评

暂无评论

Opportunities for retrieval and tool augmented large language models in scientific facilities

引用

npj Computational Materials 2024年第1期10卷 588-595页

作者： Michael H.Prince Henry Chan Aikaterini Vriza Tao Zhou Varuni K.Sastry Yanqi Luo Matthew T.Dearing Ross J.Harder Rama K.Vasudevan Mathew J.Cherukara Advanced Photon Source Argonne National LaboratoryLemontILUSA Center for Nanoscale Materials Argonne National LaboratoryLemontILUSA Argonne Leadership Computing Facility Argonne National LaboratoryLemontILUSA Business and Information Systems Argonne National LaboratoryLemontILUSA Center for Nanophase Materials Oak Ridge National LaboratoryOak RidgeTNUSA

Upgrades to advanced scientific user facilities such as next-generation x-ray light sources,nanoscience centers,and neutron facilities are revolutionizing our understanding of materials across the spectrum of the physical sciences,from life sciences to ***,these facility and instrument upgrades come with a significant increase in *** by more exacting scientific needs,instruments and experiments become more intricate each *** increased operational complexity makes it ever more challenging for domain scientists to design experiments that effectively leverage the capabilities of and operate on these advanced *** language models(LLMs)can perform complex information retrieval,assist in knowledge-intensive tasks across applications,and provide guidance on tool *** x-ray light sources,leadership computing,and nanoscience centers as representative examples,we describe preliminary experiments with a Context-Aware Language Model for Science(CALMS)to assist scientists with instrument operations and complex *** the ability to retrieve relevant information from facility documentation,CALMS can answer simple questions on scientific capabilities and other operational *** the ability to interface with software tools and experimental hardware,CALMS can conversationally operate scientific *** making information more accessible and acting on user needs,LLMs could expand and diversify scientific facilities’users and accelerate scientific output.

关键词： instrument instruments facilities

来源：评论

学校读者我要写书评

暂无评论

Transducers cascades for an automatic recognition of Arabic named entities in order to establish links to free resources 1

Transducers cascades for an automatic recognition of Arabic ...

引用

1st International Conference on Arabic Computational Linguistics, ACLing 2015

作者： Mesmia, Fatma Ben Friburger, Nathalie Haddar, Kais Maurel, Denis University of Sfax Laboratory MIRACL Multimedia InfoRmation Systems and Advanced Computing Laboratory Sfax Tunisia University of François Rabelais of Tours LI Computer Laboratory Tours France

ISBN: (纸本)9781467391559

Arabic named entities (ANE) are often sources of information. That is why they are used by several applications of natural language processing (NLP) mainly in information retrieval. In order to improve the relevance of the information obtained, links to free resources can be established. Indeed, the recognition of these entities requires the use of adequate formalisms. In this paper, we propose an approach based on transducer cascades which allows the recognition of ANE more precisely the dates. This categorycan be an integral part in the events and the names of places. The implementation of the developed transducers cascades elaborated by using the CasSys tool is available under the Unitex platform. The results are motivating. © 2015 IEEE.

关键词： Transducers

来源：评论

学校读者我要写书评

暂无评论

WWW - The World Wide Web 22nd

WWW - The World Wide Web

引用

22nd International Seminar on Current Trends in Theory and Practice of Informatics, SOFSEM 1995

作者： Marshall, Victoria A. Advanced Hypermedia Systems Group Computing and Information Systems Department Rutherford Appleton Laboratory Chilton DIDCOTOX11 0QX United Kingdom

ISBN: (纸本)3540606092

Over the last few years there has been a phenomenal growth in the use of WWW (World Wide Web) for a wide variety of purposes from advertising and publicity, to collaborative work and teaching. Because it is so easy to set up a server, there are almost as many web philosophies, Uses and page designs as there are web pages. Of course some of these are better than others and within CISD we believe that our corporate-wide style and practices are particularly effective. This talk will give a brief history of WWW, and then go on to describe the philosophy and technical theory of the design and structure of the CISD web, and explain how it fits into the CCLRC corporate web and philosophy. It will also touch on more advanced uses of the web. © Springer-Verlag Berlin Heidelberg 1995.

关键词： Teaching

来源：评论

学校读者我要写书评

暂无评论

A new approach for TV program identification based on video grammar 09

A new approach for TV program identification based on video ...

引用

7th International Conference on Advances in Mobile computing and Multimedia, MoMM2009

作者： Zlitni, Tarek Mahdi, Walid Ben Abdallah, Hanène Mir at cl Multimedia Information Systems and Advanced Computing Laboratory Higher Institute of Computer Science and Multimedia BP 3021 Sfax 69042 Tunisia

ISBN: (纸本)9781605586595

In this paper, we propose a new approach to identify programs in TV streams. In the first step of our approach, we construct a reference catalogue for video grammars of visual jingles. In the second step, we identify programs in TV streams by examining the similarity of the video signal to the visual grammars in the catalogue. After presenting our approach, we report the results of its experimental evaluation on several streams extracted from different channels and composed of several programs. Copyright 2009 ACM.

关键词： Indexing (of information)

来源：评论

学校读者我要写书评

暂无评论

Computational Complexity Analysis of Ant Colony Clustering Algorithms: Application to Student's Grouping Problem

Computational Complexity Analysis of Ant Colony Clustering A...

引用

2022 IEEE International Conference on systems, Man, and Cybernetics, SMC 2022

作者： Chniter, Malak Abid, Abir Kallel, Ilhem Kanoun, Slim Mir@cl Lab: Multimedia InfoRmation Systems and Advanced Computing Laboratory University of Sfax ReGIM-Lab: Research Groups in Intelligent Machines Tunisia

ISBN: (数字)9781665452588

ISBN: (纸本)9781665452588

The task of assessing, grouping and arranging data into meaningful groups or clusters based on their similarities/dissimilarities measures known as cluster analysis. Thereby, there are numerous clustering algorithms: hierarchical and partitional. In the last decade, clustering using bio-inspired algorithms received more attention, specifically the ant clustering algorithms. Regardless, they have required a lot of processing power due to the massive amount of data that has been generated during the last years. As a consequence, determining the computational cost of these algorithms is one of the most interesting tasks in the quest for optimal clustering solutions in a real-time system. This study presents a research guide for the researchers working in the same field. A series of experiments are elaborated to investigate the computational complexity of the most promising algorithms applied to students grouping problem. The results indicate two challenges that arise when using ant clustering algorithms: the difficulty in adjusting parameters and extended computation time. © 2022 IEEE.

关键词： Computational complexity

来源：评论

学校读者我要写书评

暂无评论

Dynamic construction of dictionaries for sentiment classification

Dynamic construction of dictionaries for sentiment classific...

引用

International Conference on Cloud and Green computing (CGC)

作者： Salma Jamoussi Hanen Ameur Multimedia InfoRmation systems and Advanced Computing Laboratory

The sentiment classification is one of the new challenges emerged with the advence of social networks. Our purpose is to determine the sentimental orientation of a Facebook comment (positive or negative) by using the linguistic approach. In most of the sentiment analysis applications using this approach, the sentiment lexicon plays a key role. Thus, it is very important to create a lexicon covering several sentiment words. For this reason, we address in this paper the problem how to group and list words present in the corpus into two dictionaries. We proposed a new automatic technique to create the positive and negative dictionaries that exploits the emotions symbols (emoticons, acronyms and exclamation words) present in comments. More importantly, our idea allows to enlarge these dictionaries with an enrichment step. Finally, by using these prepared dictionaries, we predict the positive and negative polarities of the comment. We evaluate our approach by comparison to human classification. Our results are also effective and consistent.

关键词： Dictionaries Semantics Facebook Pragmatics Accuracy

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：