A Sentiment Score and a rating based Numeric Analysis Recommendations System using Web and Data Mining Approach: A Review

Author(s):  
A. Lakshmi Holla ◽  
K.S. Kavitha

There is an enormous amount of online purchaseshappening in the web world. Some of the big giants who have dominated the E-Commerce market worldwide are Amazon, FlipKart, Walmart and many more. Data generation has increased exponentially and analysis of this dynamic data poses a major challenge. Further, facilitating consumer satisfaction by recommending the right product is another main challenge .This involvesa significant number of factors like review ratings, normalization, early rating, sentiment computations of a sentence consisting of conjunctions, categorizing the sentiment score as positive, negative and neutral score for a given productreview. Finally, the product which has the highest positive and least negative score must be suggested for the end user. In this paper, we discuss the work done under rating based numerical analysis methods which considers the transactions done by the end user. In the second part of the paper we present an overview of sentiment score based recommendation system.The main objective of this review is to understand and analyze the different methods used to improve the efficiency of the current recommendation systems, thereby enhancing the credibility of product recommendations.

2021 ◽  
Vol 13 (7) ◽  
pp. 1342
Author(s):  
Luca Pulvirenti ◽  
Giuseppe Squicciarino ◽  
Elisabetta Fiori ◽  
Luca Ferraris ◽  
Silvia Puca

An automated tool for pre-operational mapping of floods and inland waters using Sentinel-1 data is presented. The acronym AUTOWADE (AUTOmatic Water Areas DEtector) is used to denote it. The tool provides the end user (Italian Department of Civil Protection) with a continuous, near real-time (NRT) monitoring of the extent of inland water surfaces (floodwater and permanent water). It implements the following operations: downloading of Sentinel-1 products; preprocessing of the products and storage of the resulting geocoded and calibrated data; generation of the intermediate products, such as the exclusion mask; application of a floodwater/permanent water mapping algorithm; generation of the output layer, i.e., a map of floodwater/permanent water; delivery of the output layer to the end user. The open floodwater/permanent water mapping algorithm implemented in AUTOWADE is based on a new approach, denoted as buffer-from-edge (BFE), which combines different techniques, such as clustering, edge filtering, automatic thresholding and region growing. AUTOWADE copes also with the typical presence of gaps in the flood maps caused by undetected flooded vegetation. An attempt to partially fill these gaps by analyzing vegetated areas adjacent to open water is performed by another algorithm implemented in the tool, based on the fuzzy logic. The BFE approach has been validated offline using maps produced by the Copernicus Emergency Management Service. Validation has given good results with a F1-score larger than 0.87 and a kappa coefficient larger than 0.80. The algorithm to detect flooded vegetation has been visually compared with optical data and aerial photos; its capability to fill some of the gaps present in flood maps has been confirmed.


2021 ◽  
pp. 1-21
Author(s):  
Romola Adeola ◽  
Frans Viljoen ◽  
Trésor Makunya Muhindo

Abstract In 2019, the African Commission on Human and Peoples’ Rights adopted General Comment No 5 on the African Charter on Human and Peoples’ Rights: The Right to Freedom of Movement and Residence (Article 12(1)). In this general comment, the commission elaborated on the right to freedom of movement and residence within state borders. This issue, while explicit in international human rights law, is a challenge within various jurisdictions, including in Africa. This article provides a background to and commentary on General Comment No 5, leveraging on the insight of the authors, who participated in its drafting. Unlike the UN Human Rights Committee's earlier general comment, General Comment No 5 provides detailed guidance on the internal dimension of the right to free movement and residence. As “soft law”, its persuasive force depends on a number of factors, including its use at the domestic level, its visibility and its integration into regional human rights jurisprudence.


Author(s):  
O.I. Kazanin ◽  
◽  
M.A. Marinin ◽  
A.M. Blinov ◽  
◽  
...  

The issues are considered related to providing mining enterprises with the engineering personnel capable of managing mining and blasting operations. At present, not all the mining enterprises have a full staff of specialists and managers who are legally entitled to manage mining and blasting operations. Some employees who previously had such a right, after changes in the legal framework, ceased to meet the new requirements. The analysis is presented concerning the competencies required to perform these production functions, as well as educational programs that allow acquiring these competencies. The importance of professional retraining programs for solving these problems and the imperfection of the modern regulatory framework, which practically excludes the possibility of obtaining the right to manage mining and blasting operations, even after professional retraining for persons with a higher technical education in a non-mining profile, are shown in the article. An integrated approach is proposed for resolving the issues of the admissibility of obtaining the right to manage mining and blasting operations by these persons considering a number of factors: basic education, work experience and positions held at a mining enterprise, completed training in programs of additional education and professional retraining. Such programs should be developed and implemented by the organizations with experience in training mining engineers and having a license from Rosobrnadzor for the right to implement programs not only for additional professional education, but also for higher professional mining education. The need is substantiated in developing professional standards for managers of mining and blasting operations at the enterprises for the extraction of solid minerals. Recommendations were developed for amending the federal rules and regulations in the field of industrial safety in order to ensure the possibility of using professional retraining programs for training and final certification of the managers of mining and blasting operations.


2020 ◽  
Vol 245 ◽  
pp. 05020
Author(s):  
Vardan Gyurjyan ◽  
Sebastian Mancilla

The hardware landscape used in HEP and NP is changing from homogeneous multi-core systems towards heterogeneous systems with many different computing units, each with their own characteristics. To achieve maximum performance with data processing, the main challenge is to place the right computing on the right hardware. In this paper, we discuss CLAS12 charge particle tracking workflow orchestration that allows us to utilize both CPU and GPU to improve the performance. The tracking application algorithm was decomposed into micro-services that are deployed on CPU and GPU processing units, where the best features of both are intelligently combined to achieve maximum performance. In this heterogeneous environment, CLARA aims to match the requirements of each micro-service to the strength of a CPU or a GPU architecture. A predefined execution of a micro-service on a CPU or a GPU may not be the most optimal solution due to the streaming data-quantum size and the data-quantum transfer latency between CPU and GPU. So, the CLARA workflow orchestrator is designed to dynamically assign micro-service execution to a CPU or a GPU, based on the online benchmark results analyzed for a period of real-time data-processing.


2018 ◽  
Vol 1 (2) ◽  
pp. 148
Author(s):  
Agnes Dwita Susilawati ◽  
Dewi Apriani Fr

<p>ABSTRACT</p><p><br />The development of information technology has touched various joints of human life, especially the development of the internet. The development of the internet forms a new world where every individual has the right and ability to interact with other individuals indefinitely. The objectives of the research are (1) The influence of service quality on consumer satisfaction in accessing online shop website, (2) To know the influence of attitude and trust toward online shop shop user and (3) Influence of satisfaction to consumer loyalty online shop. Data analysis method used is included in the category of quantitative data analysis is a data analysis using statistical instruments. Statistical instruments used are Chi Square Test and performed using SPSS (Statistical Package For Social Science) software. The results of model fit testing showed that the four factors (cultural, economic, social and ethical) that have the most contigency coefficient on consumer behavior in accessing online shop site are Social variables. This means showing a group of people or individuals having a relationship between consumers with each other in choosing products through an online shop site and building good communication in choosing products and knowing the risks faced when buying products through online shop site.</p><p>Keywords: Consumer Behavior, Use of On-Line Website Access Shop</p>


2021 ◽  
Author(s):  
Silvia Ruiz-Torras ◽  
Oscar Fernández-Vazquez ◽  
Cristina Cañete-Massé ◽  
Maribel Peró-Cebollero ◽  
Joan Guàrdia-Olmos

Abstract In the last few years, the field of brain connectivity has focused on identifying biomarkers to describe different health states and to discriminate between patients and healthy controls through the characterization of brain networks. A particularly interesting case, because of the symptoms' severity, is the work done with samples of patients diagnosed with schizophrenia. This meta-analysis aims to identify connectivity networks with different activation patterns between people diagnosed with schizophrenia and healthy controls. Therefore, we collected primary studies exploring whole brain connectivity by functional magnetic resonance imaging at rest in patients with schizophrenia compared to healthy people. Thus, we identified 25 high-quality studies that included a total of 1285 people with schizophrenia and 1279 healthy controls. The results indicate hypoactivation in the right precentral gyrus and in the left superior temporal gyrus of people with schizophrenia compared with the control group. These regions have been linked to deficits in gesticulation and the experience of auditory hallucinations in people with schizophrenia. A study of heterogeneity demonstrated that the effect size was influenced by the sample size and type of analysis. These results imply new contributions to the knowledge, diagnosis, and treatment of schizophrenia both clinically and in research.


Author(s):  
Anna Savina

We consider certain issues of pledge of intellectual property, analyze the definitions of the concepts “pledge”, “intellectual property”, “objects of intellectual rights”, etc. We comprehend the issues of civil law regulation of pledge relations, investigate the mechanisms of state support for the intel-lectual property pledge, and identify a number of factors that determine the positive effect of innovative enterprises development, receiving loans secured by intellectual property. We describe the risk factors of pledged collateral for loans, we note the criteria according to which the borrower has the right to conclude an agreement on the provision of subsidies from the federal budget to small and medium-sized businesses to expense reimbursement associated with obtaining loans secured by intellectual property rights. We pay attention to the issue of correlation of derivative rights with an independent object of pledge. We examine the insurance and market issues related to the risk factors of intellectual property pledge. We study the practice of granting loans secured by intellectual property, and also analyze the statistical indicators of such practice in individual countries of Europe and Asia.


2021 ◽  
Vol 8 (2) ◽  
pp. 104-148
Author(s):  
Kehinde Anifalaje

The right to social security is recognised as a basic human right in a number of international instruments. While most nations give recognition to social security rights and generally enforce them within the dictates of domestic legislation to their nationals, the narrative is different for non-nationals, particularly the migrant worker. The article examines the measures that have been deployed at international and regional levels to protect the social security rights of migrant workers, with particular attention to the regular ones. It argues that a number of factors, including the doctrines of territoriality and nationality, account for the marginalisation of the migrant worker in the enforcement of these rights. Some migrant-specific international instruments and series of bilateral and multilateral agreements to overcome these perceived challenges are being hindered by the low number of ratifying countries and disparities in the design and level of development of schemes for specific branches of social security across countries. The article concludes that the social security right of the migrant worker would be enhanced if more countries ratify, domesticate and enforce relevant international instruments on the social security rights of the migrant worker and complement same by a much more coordinated bilateral and multilateral social security agreements.


Author(s):  
Steffen Kunz ◽  
Benjamin Fabian ◽  
Markus Aleksy ◽  
Matthias Wauer ◽  
Daniel Schuster

It is expected that the amount of product information available from the Internet of Things and Services will be so tremendous that the main challenge will be to provide the right information, at the right time, in the right place, and to the right people. This objective is addressed by Aletheia – a distributed Information System that enables the federation and semantic integration of very heterogeneous information sources. This chapter discusses the goals, functionality, and architecture of Aletheia, guided by a real-world case study in the industrial service sector and conducted in cooperation with ABB, a major company providing power and automation technologies, products, and services for utility and industry customers. Further, the authors discuss several issues from the Aletheia project experience they believe to be valuable for researchers and implementers of semantic data federation systems as well as practitioners in the industrial service sector.


2011 ◽  
Vol 2011 (1) ◽  
pp. 000008-000016 ◽  
Author(s):  
Antonio La Manna ◽  
K. J. Rebibis ◽  
C. Gerets ◽  
E. Beyne

A key element for improving 3D stacking reliability is the choice of the right Underfill materials. The Underfill is a specialized adhesive that has the main purposes of locking top and bottom dies; it must fill the gap between bumps and between dies, while reducing the differential movement that would occur during thermal cycling. Traditional underfill processes are based on local dispensing after solder bump reflow (Capillary dispensing), or before flip chip operation with no need of reflow (No Flow Underfill, NUF). In case of 3D stacking, such processes present some limitations: need of a dispensing area (die size increase); material flowing (spacing between dies) and cost (low throughput). After an introduction on typical underfill applications like die-to-package and die-die assembly, we report the work done to assess the properties of several Wafer Applied Underfill (WAUF) materials and their integration in 3D stacking. These materials have been initially applied on silicon wafers in order to assess the minimum achievable thickness and the material uniformity. The wafers have been coated by using different methods: spin coating and film lamination. After this initial assessment, the most promising materials have been used for 3D stacking. The test vehicle used has Cu/Sn μbumps with a pitch of 40μm. The quality of the materials is judged by electrical test, SAM (Surface Acoustic Microscope) and X-SEM (Scanning Electron Microscope).


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