A method of expressing associated semanteme of entities

2021 ◽  
Author(s):  
Wei Lijun ◽  
Pan Yang ◽  
Wang Hao ◽  
Wang Xianchao ◽  
Zhang Yan
Keyword(s):  
Linked Data ◽  
Relational Databases ◽  
Relational Schema ◽  
Formal Expression ◽  
The Rich ◽  
Relationship Of

To make up for the defects of semanteme expression about linked data, this paper proposes a semanteme expressing method of associated entities based on relationship diagram so as to realize the machine expression and recognition of associated semanteme in relational databases. Starting with the structure and relationship of relational schema, this paper analyzes the rich semanteme of associated entities and presents the semanteme parsing method based on the traversal path as well as its formal expression; the analysis of instance database is also carried out. Studies show that this method can comprehensively parse and express the associated semanteme of entities. This work has reference significance for the research of intelligent semanteme synthesis and for semanteme-oriented intelligent query.

scholarly journals Improving the Quality of Linked Data Using Statistical Distributions

2018 ◽  
pp. 1638-1664 ◽  
Author(s):  
Heiko Paulheim ◽  
Christian Bizer
Keyword(s):  
Knowledge Base ◽  
Linked Data ◽  
Relational Databases ◽  
Knowledge Bases ◽  
Structured Data ◽  
Data Sources ◽  
Data Sets ◽  
Statistical Distributions ◽  
The Web

Linked Data on the Web is either created from structured data sources (such as relational databases), from semi-structured sources (such as Wikipedia), or from unstructured sources (such as text). In the latter two cases, the generated Linked Data will likely be noisy and incomplete. In this paper, we present two algorithms that exploit statistical distributions of properties and types for enhancing the quality of incomplete and noisy Linked Data sets: SDType adds missing type statements, and SDValidate identifies faulty statements. Neither of the algorithms uses external knowledge, i.e., they operate only on the data itself. We evaluate the algorithms on the DBpedia and NELL knowledge bases, showing that they are both accurate as well as scalable. Both algorithms have been used for building the DBpedia 3.9 release: With SDType, 3.4 million missing type statements have been added, while using SDValidate, 13,000 erroneous RDF statements have been removed from the knowledge base.

scholarly journals Excavating awareness and power in data science: A manifesto for trustworthy pervasive data research

2021 ◽  
Vol 8 (2) ◽  
pp. 205395172110407
Author(s):  
Katie Shilton ◽  
Emanuel Moss ◽  
Sarah A. Gilbert ◽  
Matthew J. Bietz ◽  
Casey Fiesler ◽  
...  
Keyword(s):  
Data Science ◽  
Methodological Approach ◽  
Digital Data ◽  
Colonial Legacy ◽  
Research Scholarship ◽  
History Of ◽  
Rich Information ◽  
The Rich ◽  
Relationship Of ◽  
The Relationship

Frequent public uproar over forms of data science that rely on information about people demonstrates the challenges of defining and demonstrating trustworthy digital data research practices. This paper reviews problems of trustworthiness in what we term pervasive data research: scholarship that relies on the rich information generated about people through digital interaction. We highlight the entwined problems of participant unawareness of such research and the relationship of pervasive data research to corporate datafication and surveillance. We suggest a way forward by drawing from the history of a different methodological approach in which researchers have struggled with trustworthy practice: ethnography. To grapple with the colonial legacy of their methods, ethnographers have developed analytic lenses and researcher practices that foreground relations of awareness and power. These lenses are inspiring but also challenging for pervasive data research, given the flattening of contexts inherent in digital data collection. We propose ways that pervasive data researchers can incorporate reflection on awareness and power within their research to support the development of trustworthy data science.

Sounding Jewish in Berlin

2021 ◽  
pp. 190-222
Author(s):  
Phil Alexander
Keyword(s):  
Jewish History ◽  
Life Story ◽  
Her Family ◽  
Historical Materials ◽  
Jewish Music ◽  
The Rich ◽  
German Jewish ◽  
Relationship Of ◽  
The Relationship ◽  
The City

This chapter devotes specific consideration to the complex relationship between contemporary Jewish identity and klezmer music in the city—as seen in two case studies that both directly address Berlin Jewish history through music. The first of these is a project that unearths the rich recorded legacy of two prewar Berlin Jewish record labels (Semer and Lukraphon) and re-presents their music for a modern concert audience. Despite the pre-Holocaust provenance of this music, a post-Holocaust framing is unavoidable, making these materials both a way of hearing the past and also a commentary on the present (including changing German-Jewish relations). In the process, Semer Ensemble raises important questions about the relationship of bounded historical materials to contemporary performance practice. The chapter also critiques the project, arguing that while it powerfully illustrates the wealth of talent and creativity in Berlin’s Jewish music scene, it also bends certain historical narratives to better suit its own artistic aims. Secondly, the chapter discusses the life story and work of singer Tania Alon, one of the few Berlin-born Jews on today’s klezmer and Yiddish scene. Tania’s deeply felt testimony as the granddaughter of Holocaust victims stands as a powerful contrast to the easy fluidity of the contemporary milieu and reminds us of the very personal resonances that this music also contains. In particular, Tania’s singing at Stolpersteine ceremonies is explored, through her own words, as a way of sounding the silenced voices of her family and simultaneously an aural part of the urban fabric.

NORMALIZATION IN TYPE-2 FUZZY RELATIONAL DATA MODEL BASED ON FUZZY FUNCTIONAL DEPENDENCY USING FUZZY FUNCTIONS

2012 ◽  
Vol 20 (01) ◽  
pp. 99-138 ◽  
Author(s):  
P. C. SAXENA ◽  
D. K. TAYAL
Keyword(s):  
Relational Databases ◽  
Normal Forms ◽  
Functional Dependency ◽  
Data Dependencies ◽  
Redundant Storage ◽  
Membership Value ◽  
Definition Of ◽  
Relationship Of ◽  
Fuzzy Equality

In fuzzy relational databases, the data dependencies, especially the fuzzy functional dependency(ffd) plays an important role in maintaining the consistency of the database and in avoiding the redundant storage of the data. In the past, it has been shown that the type-2 fuzzy relational databases captures impreciseness and incompleteness in data in a better way. The aim of this paper is to provide the concepts for database normalization in a type-2 fuzzy relational database, so that the normalized schemas can be obtained. Here, we deal with the fuzzy functional dependency(ffd) based normalization of type-2 fuzzy relational databases. We use the concepts of fuzzy functions to derive the fuzzy equality and using this fuzzy equality, we define a new definition of fuzzy functional dependency. First we discuss various approaches proposed by the researchers in this context and show why our fuzzy functional dependency is better, as compared to the earlier ffds proposed by the researchers. We call our ffd as non-0 LHS ffd. We identify an anomaly called "spurious ffd" and show that some of the significant contributions proposed by the earlier researchers are suffering from this anomaly, but the non-0 LHS ffd does not suffer from it. Then, we prove that the set of inference rules for the non-0 LHS ffd are sound and complete. We use the definition of non-0 LHS ffd in obtaining the first three normal forms upto BCNF for type-1 and type-2 fuzzy relational schemas. The result of the decomposition and the procedure to obtain the membership value of the decomposed relations is proposed. The associated concepts like the fuzzy key, fuzzy superkey, fuzzy foreign key are defined in terms of non-0 LHS ffd. On the basis of these concepts, we define full ffd, partial ffd etc. In the last, we show that in our case, the relationship of total-ordering between the three normal forms in classical relational databases is also observed.

Creating Linked Data from Relational Databases

2015 ◽  
pp. 73-102 ◽  
Author(s):  
Nikolaos Konstantinou ◽  
Dimitrios-Emmanuel Spanos
Keyword(s):  
Linked Data ◽  
Relational Databases

Multivalued Dependencies in Fuzzy Multivalued Relational Databases Using Fuzzy Functions

2015 ◽  
Vol 23 (04) ◽  
pp. 589-626 ◽  
Author(s):  
Devendra K. Tayal ◽  
P. C. Saxena
Keyword(s):  
Real World ◽  
Data Model ◽  
Relational Databases ◽  
Relational Model ◽  
Relational Data ◽  
Inference Rules ◽  
Functional Dependencies ◽  
Technical Institute ◽  
Relational Schema ◽  
Relational Data Model

In this paper we discuss an important integrity constraint called multivalued dependency (mvd), which occurs as a result of the first normal form, in the framework of a newly proposed model called fuzzy multivalued relational data model. The fuzzy multivalued relational data model proposed in this paper accommodates a wider class of ambiguities by representing the domain of attributes as a “set of fuzzy subsets”. We show that our model is able to represent multiple types of impreciseness occurring in the real world. To compute the equality of two fuzzy sets/values (which occur as tuple-values), we use the concept of fuzzy functions. So the main objective of this paper is to extend the mvds in context of fuzzy multivalued relational model so that a wider class of impreciseness can be captured. Since the mvds may not exist in isolation, a complete axiomatization for a set of fuzzy functional dependencies (ffds) and mvds in fuzzy multivalued relational schema is provided and the role of fmvds in obtaining the lossless join decomposition is discussed. We also provide a set of sound Inference Rules for the fmvds and derive the conditions for these Inference Rules to be complete. We also derive the conditions for obtaining the lossless join decomposition of a fuzzy multivalued relational schema in the presence of the fmvds. Finally we extend the ABU's Algorithm to find the lossless join decomposition in context of fuzzy multivalued relational databases. We apply all of the concepts of fmvds developed by us to a real world application of “Technical Institute” and demonstrate that how the concepts fit well to capture the multiple types of impreciseness.

Study on Intangible Cultural Heritage Protection of the Architectural Cultural Heritage

2014 ◽  
Vol 638-640 ◽  
pp. 2312-2315
Author(s):  
Zhi Qing Zhao ◽  
Li Tao
Keyword(s):  
Cultural Heritage ◽  
Local Culture ◽  
Rural Culture ◽  
Intangible Cultural Heritage ◽  
Coping Methods ◽  
Current Context ◽  
Heritage Protection ◽  
The Rich ◽  
And Coping ◽  
Relationship Of

In the current context of globalization and regional characteristics of urban and rural culture general lacking, due to the long history and has the heavy connotation, the historical cultural heritage reflected the rich local culture and traditional cultural imprint. According to the definition, the content and relationship of material cultural heritage and intangible cultural heritage, this paper intensively study the non-material cultural heritage factors loaded by buildings architecture cultural heritage, and presented the problems and coping methods during the course of the Intangible Cultural Heritage Protection.

A phenomenological study of hybrid stars in which the crossover transition from quark to hadron makes the EOS stiffer in contrast to the hybrid EOS based on Maxwell condition

2017 ◽  
Vol 32 (08) ◽  
pp. 1750051 ◽  
Author(s):  
Tong Zhao ◽  
Cheng-Ming Li ◽  
Ya-Peng Zhao ◽  
Yan Yan ◽  
Xin-Lian Luo ◽  
...  
Keyword(s):  
Phenomenological Study ◽  
Equations Of State ◽  
Point Of View ◽  
Hadronic Matter ◽  
Solar Mass ◽  
Hadron Phase ◽  
Crossover Phase ◽  
The Rich ◽  
Hybrid Stars ◽  
Relationship Of

In this paper, we make a phenomenological study of the mass–radii relationship of hybrid stars from the point of view of the smooth crossover phase transition. We find a way to construct stiff hybrid equations of state (EOSs) with soft EOSs of both the quark matter and the hadronic matter. For the hadron phase, we adopt the EOS softened by introducing hyperons that are considered to exist in the core of a neutron star. For the quark phase, we introduce a quark EOS based on the Dyson–Schwinger equation (DSE) that is calculated in our previous work, and it is also a soft EOS. In contrast to the hybrid EOS based on Maxwell condition, we find that the resulting EOS is stiff and the maximum mass of the hybrid stars is still about two times of solar mass. This result indicates the rich possibilities of the crossover model.

RELATIONAL DATABASE REVERSE ENGINEERING: A METHOD BASED ON QUERY ANALYSIS

1995 ◽  
Vol 04 (02n03) ◽  
pp. 287-316 ◽  
Author(s):  
JEAN-MARC PETIT ◽  
FAROUK TOUMANI ◽  
JACQUES KOULOUMDJIAN
Keyword(s):  
Reverse Engineering ◽  
Program Analysis ◽  
Relational Databases ◽  
A Priori ◽  
User Interaction ◽  
Description Language ◽  
Relational Schema ◽  
Conceptual Schema ◽  
Expert User ◽  
Application Programs

This paper introduces a method of reverse engineering for operational relational databases. The conceptual schemas are derived using information extracted from data dictionaries, database extensions and application programs. Its main strength relies on the assumptions made on the a priori knowledge available about the database (only [Formula: see text] and/or [Formula: see text] constraints on attribute(s)) as well as the user competence. We argue that most of the knowledge needed to build a conceptual schema, if not described in the Data Description Language, is embedded in application programs under various forms. The method is therefore based on four main steps: firstly, application program analysis is performed and a set [Formula: see text] of equi-joins is obtained; secondly, a conceptual schema is derived from [Formula: see text], from the database extension and from the relational schema; thirdly, this conceptual schema is validated through an interactive dialogue with the expert user who is helped in this task by indications given by the method. Finally, a schema reorganization under user control is achieved to match the user requirements better. We introduce also how other kinds of queries can help the task of semantics discovery. Additionally, we precisely identify the phases when user interaction is needed. This method has been successfully validated on an operational database.

scholarly journals Musical code and musical ecfrasis in the novel by I. Franco “William Tell”

2019 ◽  
Keyword(s):  
Short Story ◽  
Verbal Description ◽  
The Novel ◽  
The People ◽  
Inner World ◽  
The Rich ◽  
Litmus Test ◽  
The One ◽  
Relationship Of

The article analyzes the novel by I. Franco “William Tell” through the prism of musical code and musical ecfrasis. So far, none of the French scholars has paid attention to the plot-forming role of the Rossini’s opera in the short story, but in the first part of the four-part short story the young couple is going to the opera, in the following parts Franco gradually reveals the heroine’s perception of the overture to the opera, and then its individual scenes. After the end of the opera, Olya novelistically unexpectedly, on the external-eventual plane of the novel, declares that she is not in love with Volodko, but on the internal, spiritual and psychological - thanks to the verbal description of the music and its perception by the heroes - this becomes natural. With the help of musical ecfrasis, the depth of Olya’s impression of the Rossini’s opera and the heroine’s psychological sensitivity to what she heard become clear. Moreover, Franco finds his “niche” in the image of the heroine's understanding of opera music: while foreign writers of the mid-19th century most often describe the feelings and emotions that heroes evoke in music, Franco, relying on picture programmability (landscapes of his native land and ideal representations of the heroine about family happiness), which Olya accompanies the heard music, reveals the rich inner world of the girl and her ideals. Rossini’s romantic heroic-patriotic opera “Wilhelm Tell”, her musical images and stage performance become a litmus test in the novel: the relationship of the characters to the opera performance, impressions of it become an important way of revealing their characters. Volodka’s superficial attitude to music as entertainment, on the one hand, and Olya’s ability under the influence of music to see the true meaning of life, correcting her worldview from pastorally romantic to heroic-romantic, on the other hand, make it possible to understand the different life positions of the heroes - the intellectual adaptive Volodka’s service to the people of Olya, and, in fact, the ideological and artistic concept of the writer himself.

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