Research
Utterance copy consists in estimating the input parameters to reconstruct a speech signal using a speech synthesizer. This process is distinct from the more traditional text-to-speech but yet used in many area...
Journal of the Brazilian Computer Society 2015 21:17
Published on: 8 October 2015
Research
With the increasing popularity of scientific workflow management systems (SWfMS), more and more workflow specifications are becoming available. Such specifications contain precious knowledge that can be reused...
Journal of the Brazilian Computer Society 2015 21:16
Published on: 5 October 2015
Research
Developers commonly affirm that writing unit tests improve internal quality of a software, besides a more obvious effect on external quality. This is particularly common among Test-Driven Development (TDD) pac...
Journal of the Brazilian Computer Society 2015 21:15
Published on: 3 September 2015
Research
After graduating and starting a career as a professor, a young researcher usually finds him/herself lost due to a huge amount of new obligations and opportunities. Choosing the best strategy to guide his/her c...
Journal of the Brazilian Computer Society 2015 21:14
Published on: 26 August 2015
Research
Video on demand (VoD) is a fast-growing digital service that requires a substantial amount of hardware resources for its implementation. To reduce the costs of running this service, an alternative is to use pr...
Journal of the Brazilian Computer Society 2015 21:8
Published on: 3 August 2015
Research
Systems are considered legacy when their maintenance costs raise to unmanageable levels, but they still deliver valuable benefits for companies. One intrinsic problem of this kind of system is the presence of ...
Journal of the Brazilian Computer Society 2015 21:10
Published on: 1 August 2015
Research
Ad Networks connect advertisers to websites that want to host advertisements. When users request websites, the Ad Network decides which ad to send so as to maximize the number of ads that are clicked by users....
Journal of the Brazilian Computer Society 2015 21:13
Published on: 23 July 2015
Research
Nowadays, systems involving multiple FPGAs are used for various scientific applications. Such systems require a data bus dedicated to the communication between FPGAs, which could be done through a LVDS type. A...
Journal of the Brazilian Computer Society 2015 21:12
Published on: 17 July 2015
Research
This paper studies the generalized probabilistic satisfiability (GPSAT) problem, where the probabilistic satisfiability (PSAT) problem is extended by allowing Boolean combinations of probabilistic assertions a...
Journal of the Brazilian Computer Society 2015 21:11
Published on: 15 July 2015
Research
This paper presents a policy to choose cutoff points to identify potentially relevant terms in a given domain. Term extraction methods usually generate term lists ordered according to a relevance criteria, and...
Journal of the Brazilian Computer Society 2015 21:9
Published on: 14 July 2015
Research
Query refinement is an interactive process of query modification used to increase or decrease the scope of search results in databases or ontologies.
Journal of the Brazilian Computer Society 2015 21:7
Published on: 7 July 2015
Research
Parallel processing in the era of many-core processors demands high-performance networks-on-chip and parallel communication based on intra-chip message passing. In this context, wireless networks-on-chip (WiNo...
Journal of the Brazilian Computer Society 2015 21:6
Published on: 27 June 2015
Research
This paper presents how to improve model reduction for Markov decision process (MDP), a technique that generates equivalent MDPs that can be smaller than the original MDP. In order to improve the current state...
Journal of the Brazilian Computer Society 2015 21:5
Published on: 27 May 2015
Research
Open Information Extraction (Open IE) aims to obtain not predefined, domain-independent relations from text. This article introduces the Open IE research field, thoroughly discussing the main ideas and systems...
Journal of the Brazilian Computer Society 2015 21:4
Published on: 6 May 2015
Research
Versioning has proven to be essential in areas like software development or data and knowledge management. For systems or applications making use of documents formatted according to the Resource Description Fr...
Journal of the Brazilian Computer Society 2015 21:3
Published on: 28 April 2015
Research
Part-of-speech tagging is an important preprocessing step in many natural language processing applications. Despite much work already carried out in this field, there is still room for improvement, especially ...
Journal of the Brazilian Computer Society 2015 21:2
Published on: 6 February 2015
Research
The automatic syllabification process is an essential prerequisite for speech synthesis systems. However, the task is not trivial, and several techniques have been adopted over the last decade. Furthermore, wh...
Journal of the Brazilian Computer Society 2015 21:1
Published on: 28 January 2015
Research
Similarity measures have application in many scenarios of digital image processing. The correntropy is a robust and relatively new similarity measure that recently has been employed in various engineering appl...
Journal of the Brazilian Computer Society 2014 20:18
Published on: 16 October 2014
Research
There are several application scenarios that can take advantage from the efficient processing of similarity operations in complex data types, such as multimedia data. Among them, it is possible to mention the ...
Journal of the Brazilian Computer Society 2014 20:17
Published on: 13 September 2014
Research
In this work, we consider the graph sandwich decision problem for property Π, introduced by Golumbic, Kaplan and Shamir: given two graphs G1=(V,E1) and G2=(V,E2), the question is to know whether there exists a gr...
Journal of the Brazilian Computer Society 2014 20:16
Published on: 11 September 2014
Research
BioTextRetriever is a Web-based search tool for retrieving relevant literature in Molecular Biology and related domains from MEDLINE. The core of BioTextRetriever is the dynamic construction of a classifier ca...
Journal of the Brazilian Computer Society 2014 20:13
Published on: 19 June 2014
Research
Traditional data classification techniques usually divide the data space into sub-spaces, each representing a class. Such a division is carried out considering only physical attributes of the training data (e....
Journal of the Brazilian Computer Society 2014 20:14
Published on: 17 June 2014
Research
Term extraction is highly relevant as it is the basis for several tasks, such as the building of dictionaries, taxonomies, and ontologies, as well as the translation and organization of text data.
Journal of the Brazilian Computer Society 2014 20:12
Published on: 30 May 2014
Research
Road pricing is a useful mechanism to align private utility of drivers with a system-level measure of performance. Traffic simulation can be used to predict the impact of road pricing policies. The simulation ...
Journal of the Brazilian Computer Society 2014 20:15
Published on: 13 May 2014
Research
In this paper, we report the results of an action research conducted to design a communication device to help a non-verbal child develop language skills. Participatory design (PD) is frequently regarded as a c...
Journal of the Brazilian Computer Society 2014 20:10
Published on: 24 April 2014
