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It is usual for a consumer to search a product based on its category and go to related kind of shop to buy a product, e.g. food in supermarket, a pencil from a stationary shop and etc. While it is not uncommon nowadays for a shop to sell various categories of goods at the same time, like a newspaper stand do sell toys, an accessory shop has stationary. However, consumer may not easily notice and purchase...
The increasing adoption of health information technologies in the United States accelerates their potential to facilitate beneficial studies that combine large, complex data sets from multiple sources. The process of de-identification, by which identifiers are removed from the health information, mitigates privacy risks to individuals and thereby supports the secondary use of data for comparative...
Opinions are key determinants to many of the activities related to software development. The perceptions of developers about an API, and the choices they make about whether and how they should use it, may, to a considerable degree, be conditioned upon how other developers see and evaluate the API. Given the plethora of APIs available for a given development task and the advent of developer forums...
This paper describes SIIP (Speaker Identification Integrated Project) a high performance innovative and sustainable Speaker Identification (SID) solution, running over large voice samples database. The solution is based on development, integration and fusion of a series of speech analytic algorithms which includes speaker model recognition, gender identification, age identification, language and accent...
Relational databases provide a wealth of functionality to a wide range of applications. Yet, there are tasks for which they are less than optimal, for instance when processing becomes more complex (e.g., regular expression evaluation, data analytics) or the data is less structured (e.g., text or long strings). With the increasing amount of user-generated data stored in relational databases, there...
In order to bake security into application design, we introduce an adaptation to the Command pattern: command instances are tagged with the permissions required to perform them for each object they manipulate. Prior to executing a command instance issued by a given user, an execution engine validates the user has the required permissions over the objects the command is about to operate on. Stating...
A polystore system is a database management system composed of integrated heterogeneous database engines and multiple programming languages. By matching data to the storage engine best suited to its needs, complex analytics run faster and flexible storage choices helps improve data organization. BigDAWG (Big Data Working Group) is our prototype implementation of a polystore system. In this paper,...
Migraine is a common disease throughout the world. Not only does it affect the life of people tremendously, but it also leads to high costs, e.g. due to inability to work or various required drug-taking cycles for finding the best drug for a patient. Solving the latter aspect could help to improve the life of patients and decrease the impact of the other consequences. Therefore, in this paper, we...
Scientific workflow plays an important role in complex scientific computing. It can integrate various data and analysis functions to solve complicated geoprocessing problems which usually involve a couple of steps. They could be accomplished manually step by step in Geographic Resources Analysis Support System (GRASS), an open source Geographic Information System (GIS) software, or automated through...
Three forms of contextual search have been proposed in the literature. The first one is to scan the full text of a query to figure out user needs and based on that scan, HTML pages for content will return an index of the relevant content. In this case, the user has no control over the context of the query. The second form of contextual search is used by meta-search engines and requires the user to...
In order to achieve sustainability in the context of advances in science and technology, it is necessary to transform the traditional tourist attractions into smart tourist attractions by combining smart and information technologies with scientific management. Navigation and guide is an important module of smart tourist attraction. A navigation and guide service system based on smart phone is proposed...
Here we describe an approach for the dynamic selection of test cases in continuous integration test environments. By correlating historical test case results with product source code changes, we are able to construct a simple model that enables us to dynamically and automatically create test suites that are customized for each individual product software delivery. Using this technique, we are able...
In this work two approaches of backward chaining inference implementation were compared. The first approach uses a classical, goal driven inference running on the client device — the algorithm implemented within the KBExpertLib library was used. Inference was performed on a rule base buffered in memory structures. The second approach involves implementing inference as a stored procedure, run in the...
Although organizations have widely adopted Business Process Management Systems (BPMS) as an automation and integration middleware, these systems remain limited in their orchestration capabilities. BPMS can only react to event information that enterprise applications emit and only integrate against the service interfaces these applications provide. At the same time, organizations increasingly leverage...
Apache Hive, Apache Pig and Pivotal HWAQ are very popular open source cluster computing frameworks for large scale data analytics. These frameworks hide the complexity of task parallelism and fault-tolerance, by exposing a simple programming API to users. In this paper, we discuss the major architectural component differences in them and conduct detailed experiments to compare their performances with...
Multiple signals are measured by sensors during a flight or a test bench and their analysis represent a big interest for engineers. These signals are actually multivariate time series created by the sensors present on the aircraft engines. Each of them can be decomposed into series of stabilized phases, well known by the experts, and transient phases. Transient phases are merely explored but they...
Tujia brocade (Xi lan ka pu) is a kind of traditional handcraft brocade which was listed in the first batch of non-material cultural heritage of China. It has become a popular trend to promote non-material cultural heritage with digital technology. Personalization recommendation for Tujia brocade culture resources could push new knowledge and something the user interested in, which could improve the...
Database is widely used for information storage and management. With the explosion of the data size, the requirement of the storage capacity is growing dramatically. Cloud offers clients a scalable solution to meet the demand of the increasing space. A cloud service, if used and managed properly, can increase the resource usability and provide more secure services. In this paper, we propose a cloud-based...
Data is the new natural resource of this century. As data volumes grow and applications aimed at monetizing the data continue to evolve, data processing platforms are expected to meet new scale, performance, reliability and data retention requirements. At the same time, storage hardware continues to improve in performance and price-performance. In this paper, we present TOKVS - Trillion Operation...
The initial diagnosis of rare diseases is difficult because they are infrequent and doctors do not often see or recognize their symptoms. Developing tools to assist in this diagnosis would provide a way to facilitate medical practice in this area. The broader goal of this project is to develop such a tool, which we name rare disease discovery (<uri>http://disease-discovery.udl.cat</uri>)...
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