Volume
OASIcs, Volume 62
7th Symposium on Languages, Applications and Technologies (SLATE 2018)
-
Part of:
Series:
Open Access Series in Informatics (OASIcs)
Conference: Symposium on Languages, Applications and Technologies (SLATE)
Event
SLATE 2018, June 21-22, 2018, Guimaraes, PortugalEditors
Publication Details
- published at: 2018-07-13
- Publisher: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
- ISBN: 978-3-95977-072-9
- DBLP: db/conf/slate/slate2018
Access Numbers
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Document
Complete Volume
OASIcs, Volume 62, SLATE'18, Complete Volume
Abstract
OASIcs, Volume 62, SLATE'18, Complete Volume
Cite as
7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@Proceedings{henriques_et_al:OASIcs.SLATE.2018,
title = {{OASIcs, Volume 62, SLATE'18, Complete Volume}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018},
URN = {urn:nbn:de:0030-drops-92790},
doi = {10.4230/OASIcs.SLATE.2018},
annote = {Keywords: Computing methodologies, Natural language processing, Software and its engineering, Compilers, Information systems, World Wide Web}
}
Document
Front Matter
Front Matter, Table of Contents, Preface, Conference Organization
Abstract
Front Matter, Table of Contents, Preface, Conference Organization
Cite as
7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 0:i-0:xiv, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{henriques_et_al:OASIcs.SLATE.2018.0,
author = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
title = {{Front Matter, Table of Contents, Preface, Conference Organization}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {0:i--0:xiv},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.0},
URN = {urn:nbn:de:0030-drops-92582},
doi = {10.4230/OASIcs.SLATE.2018.0},
annote = {Keywords: Front Matter, Table of Contents, Preface, Conference Organization}
}
Document
Kaang: A RESTful API Generator for the Modern Web
Abstract
Technology is constantly evolving, as a result, users have become more demanding and the applications more complex. In the realm of Web development, JavaScript is growing in a surprising way, already leaving the boundaries of the browser, mainly due to the advent of Node.js. In fact, JavaScript is constantly being reinvented and, from the ES2015 version, began to include the OO concepts typically found in other programming languages.
With Web access being mostly made by mobile devices, developers face now performance challenges and need to perform a plethora of tasks that weren't necessary a decade ago, such as managing dependencies, bundling files, minifying code, optimizing images and others. Many of these tasks can be achieved by using the right tools for the job. However, developers not only have to know those tools, but they also must know how to access and operate them. This process can be tedious, confusing, time-consuming and error-prone.
In this paper, we present Kaang, an automatic generator of RESTFul Web applications. The ultimate goal of Kaang is to minimize the impact of creating a RESTFul service by automating all its workflow (e.g., files structuring, boilerplate code generation, dependencies management, and task building). This kind of generators will benefit two types of users: will help novice developers to decrease their learning curve while facing the new frameworks and libraries commonly found in the modern Web and speed up the work of expert developers avoiding all the repetitive and bureaucratic work. At the same time, Kaang promotes the good development principles by adding automatic testing and documentation generation.
For this accomplishment, Kaang generates the main API content based on the user's input and a set of templates which will help developers to manage and test routes, define resources, store data models and others. In order to provide an addition level of confidence to the generator's end-users, the generator will be integrated on Travis CI and published on both the npmjs and Yeoman registries.
Cite as
Ricardo Queirós. Kaang: A RESTful API Generator for the Modern Web. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 1:1-1:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{queiros:OASIcs.SLATE.2018.1,
author = {Queir\'{o}s, Ricardo},
title = {{Kaang: A RESTful API Generator for the Modern Web}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {1:1--1:15},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.1},
URN = {urn:nbn:de:0030-drops-92592},
doi = {10.4230/OASIcs.SLATE.2018.1},
annote = {Keywords: web development, generators, web tooling, javascript}
}
Document
Short Paper
LearnJS - A JavaScript Learning Playground (Short Paper)
Abstract
The JavaScript ecosystem is evolving dramatically. Nowadays, the language is no longer confined to the boundaries of the browser and is now running in both sides of the Web stack. At the same time, JavaScript it's starting to play also an important role in desktop and mobile applications development. These facts are leading companies to massively adopt JavaScript in their Web/mobile projects and schools to augment the language spectrum among their courses curricula.
Several platforms appeared in recent years aiming to foster the learning of the JavaScript language. Those platforms are mainly characterized with sophisticated UI which allow users to learn JavaScript in a playful and interactive way. Despite its apparent success, these environments are not suitable to be integrated in existent educational platforms. Beyond these interoperability issues, most of these platforms are rigid not allowing teachers to contribute with new exercises, organize the existent exercises in more suitable and modular activities to be deployed in their courses, neither keep track of student's progress.
This paper presents LearnJS as a simple and flexible platform to teach and learn JavaScript. In this platform, instructors can contribute with new exercises and combine them with expositive resources (e.g videos) to define specific course activities. These activities can be gamified with the injection of dynamic attributes to reward the most successful attempts. Finally, instructors can deploy activities in their educational platforms. On the other hand, learners can solve exercises and receive immediate feedback on their solutions through static and dynamic analyzers. Since we are in the early stages of implementation, the paper focus on the presentation of the LearnJS architecture, their main components and their data and integration models. Nevertheless, a prototype of the platform is available in a GitHub repository.
Cite as
Ricardo Queirós. LearnJS - A JavaScript Learning Playground (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 2:1-2:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{queiros:OASIcs.SLATE.2018.2,
author = {Queir\'{o}s, Ricardo},
title = {{LearnJS - A JavaScript Learning Playground}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {2:1--2:9},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.2},
URN = {urn:nbn:de:0030-drops-92605},
doi = {10.4230/OASIcs.SLATE.2018.2},
annote = {Keywords: Web development, programming, e-learning, automatic evaluation}
}
Document
Short Paper
Moozz: Assessment of Quizzes in Mooshak 2.0 (Short Paper)
Abstract
Quizzes are a widely used form of assessment, supported in many e-learning systems. Mooshak is a web system which supports automated assessment in computer science. This paper presents Moozz, a quiz assessment environment for Mooshak 2.0, with its own XML definition for describing quizzes. This definition is used for: interoperability with different e-learning systems, generating HTML-based forms, storing student answers, marking final submissions and generating feedback. Furthermore, Moozz also includes an authoring tool for creating quizzes. The paper describes Moozz, its quiz definition language and architecture, and details its implementation.
Cite as
Helder Correia, José Paulo Leal, and José Carlos Paiva. Moozz: Assessment of Quizzes in Mooshak 2.0 (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 3:1-3:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{correia_et_al:OASIcs.SLATE.2018.3,
author = {Correia, Helder and Leal, Jos\'{e} Paulo and Paiva, Jos\'{e} Carlos},
title = {{Moozz: Assessment of Quizzes in Mooshak 2.0}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {3:1--3:8},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.3},
URN = {urn:nbn:de:0030-drops-92615},
doi = {10.4230/OASIcs.SLATE.2018.3},
annote = {Keywords: quiz, automated assessment, authoring, XML, feedback, e-learning}
}
Document
Short Paper
Raccode: An Eclipse Plugin for Assessment of Programming Exercises (Short Paper)
Abstract
IDEs are environments specialized in support during the development of programs. They contain several utilities to code, run, debug, and deploy programs quickly. However, they do not provide the automatic assessment of programming exercises, which is required in both learning and competitive programming environment. Therefore, IDEs are often underestimated in these contexts and replaced by basic code editors. Yet, IDEs have unique features which are essential for programmers, such as the debugger or the package explorer. This paper presents Raccode, a plugin for assessment of programming exercises in Eclipse. This plugin integrates with Mooshak to combine the diverse capabilities of an IDE, like Eclipse, with the automatic evaluation of exercises, clarification requests, printouts, balloons, and rankings. It can be used both in competitive and learning environments. The paper describes Raccode, its concept, architecture and design.
Cite as
André Silva, José Paulo Leal, and José Carlos Paiva. Raccode: An Eclipse Plugin for Assessment of Programming Exercises (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 4:1-4:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{silva_et_al:OASIcs.SLATE.2018.4,
author = {Silva, Andr\'{e} and Leal, Jos\'{e} Paulo and Paiva, Jos\'{e} Carlos},
title = {{Raccode: An Eclipse Plugin for Assessment of Programming Exercises}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {4:1--4:8},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.4},
URN = {urn:nbn:de:0030-drops-92621},
doi = {10.4230/OASIcs.SLATE.2018.4},
annote = {Keywords: automatic evaluation, programming, IDE, learning, competition}
}
Document
eOS: The Exercise Operating System
Abstract
We present an architecture for a system for creating, adapting and evaluating programming exercises for students. The system is capable of generating exercise skeletons, automatically creating inputs and outputs, provide a way of creating a large number of exercises programmatically and allowing students to solve them while giving them feedback. Furthermore, it allows the creation of special comparators that can check whether the output of a given submission is equivalent to the expected one or simply check whether the above mentioned output corresponds to a correct solution.
Cite as
Rui Mendes and José João Almeida. eOS: The Exercise Operating System. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 5:1-5:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{mendes_et_al:OASIcs.SLATE.2018.5,
author = {Mendes, Rui and Almeida, Jos\'{e} Jo\~{a}o},
title = {{eOS: The Exercise Operating System}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {5:1--5:13},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.5},
URN = {urn:nbn:de:0030-drops-92630},
doi = {10.4230/OASIcs.SLATE.2018.5},
annote = {Keywords: domain specific language, code generation, automatic evaluation, testing}
}
Document
Construction of a Pushdown Automaton Accepting a Postfix Notation of a Tree Language Given by a Regular Tree Expression
Abstract
Regular tree expressions are a formalism for describing regular tree languages, which can be accepted by a finite tree automaton as a standard model of computation. It was proved that the class of regular tree languages is a proper subclass of tree languages whose linear notations can be accepted by deterministic string pushdown automata. In this paper, we present a new algorithm for transforming regular tree expressions to equivalent real-time height-deterministic pushdown automata that accept the trees in their postfix notation.
Cite as
Tomás Pecka, Jan Trávnícek, Radomír Polách, and Jan Janousek. Construction of a Pushdown Automaton Accepting a Postfix Notation of a Tree Language Given by a Regular Tree Expression. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 6:1-6:12, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{pecka_et_al:OASIcs.SLATE.2018.6,
author = {Pecka, Tom\'{a}s and Tr\'{a}vn{\'\i}cek, Jan and Pol\'{a}ch, Radom{\'\i}r and Janousek, Jan},
title = {{Construction of a Pushdown Automaton Accepting a Postfix Notation of a Tree Language Given by a Regular Tree Expression}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {6:1--6:12},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.6},
URN = {urn:nbn:de:0030-drops-92649},
doi = {10.4230/OASIcs.SLATE.2018.6},
annote = {Keywords: tree, regular tree expression, pushdown automaton}
}
Document
Context-Oriented Algorithmic Design
Abstract
Currently, algorithmic approaches are being introduced in several areas of expertise, namely Architecture. Algorithmic Design (AD) is an approach for architecture that takes advantage of algorithms to produce complex designs, to simplify the exploration of variations, or to mechanize tasks, including those related to analysis and optimization of designs. However, architects might need different models of the same design for different kinds of analysis, which tempts them to extend the same code base for different purposes, typically making the code brittle and hard to understand. In this paper, we propose to extend AD with Context-Oriented Programming (COP), a programming paradigm based on context that dynamically changes the behavior of the code. To this end, we propose a COP library and we explore its combination with an AD tool. Finally, we implement two case studies with our context-oriented approach, and discuss their advantages and disadvantages when compared to the traditional AD approach.
Cite as
Bruno Ferreira and António Menezes Leitão. Context-Oriented Algorithmic Design. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 7:1-7:14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{ferreira_et_al:OASIcs.SLATE.2018.7,
author = {Ferreira, Bruno and Leit\~{a}o, Ant\'{o}nio Menezes},
title = {{Context-Oriented Algorithmic Design}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {7:1--7:14},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.7},
URN = {urn:nbn:de:0030-drops-92658},
doi = {10.4230/OASIcs.SLATE.2018.7},
annote = {Keywords: context-oriented programming, algorithmic design, Python}
}
Document
Short Paper
Abcl: Abc music notation with rich chord support (Short Paper)
Abstract
It is well known the relevance of accompany chords but there is a lack of tools capable of automatically generating sound from them.
In this paper we describe a domain specific language (Abcl) aimed to be a prototyping environment for new experimental music operators. Currently Abcl: (1) adds support for accompany chords (chordmode, instruments, chord-lines); (2) adds clearer support for percussion (drums, drum-machine) (3) adds a support for variables and functions.
Abcl tool is a syntactic-preprocessor that produces Abc. The DSLToolkit, used to create Abcl, is also briefly presented and discussed in the paper.
Cite as
José João Almeida. Abcl: Abc music notation with rich chord support (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 8:1-8:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{almeida:OASIcs.SLATE.2018.8,
author = {Almeida, Jos\'{e} Jo\~{a}o},
title = {{Abcl: Abc music notation with rich chord support}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {8:1--8:8},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.8},
URN = {urn:nbn:de:0030-drops-92662},
doi = {10.4230/OASIcs.SLATE.2018.8},
annote = {Keywords: music, Abc music notation, domain specific language}
}
Document
Short Paper
Asura: A Game-Based Assessment Environment for Mooshak (Short Paper)
Abstract
Learning to program is hard. Students need to remain motivated to keep practicing and to overcome their difficulties. Several approaches have been proposed to foster students' motivation. As most people enjoy playing games of some kind and play on a regular basis, the use of games is one of the most widely spread approaches. However, taking full advantage of games to teach specific concepts of programming requires much effort. This paper presents Asura, a game-based assessment environment built on top of Mooshak that challenges students to code Software Agents (SAs) to play a game, allowing them to test the SAs against each others' SAs and watch a movie of the test. Once the challenge development stage ends, teachers are able to organize game-like tournaments among SAs. One of the key features of Asura is that it provides a means to reduce the required effort of building game-based challenges up to that of creating traditional programming exercises.
Cite as
José Carlos Paiva and José Paulo Leal. Asura: A Game-Based Assessment Environment for Mooshak (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 9:1-9:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{paiva_et_al:OASIcs.SLATE.2018.9,
author = {Paiva, Jos\'{e} Carlos and Leal, Jos\'{e} Paulo},
title = {{Asura: A Game-Based Assessment Environment for Mooshak}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {9:1--9:9},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.9},
URN = {urn:nbn:de:0030-drops-92677},
doi = {10.4230/OASIcs.SLATE.2018.9},
annote = {Keywords: games, programming, learning, graphical feedback, tournament}
}
Document
Short Paper
CaVa: Virtual Learning Spaces Formal Specification (Short Paper)
Abstract
In the context of Cultural Heritage, memory institutions build exhibition rooms to expose their assets and disseminate knowledge through these learning spaces. CaVa project aims at facilitating the process of learning spaces construction on the web to implement virtual museums. This paper presents CaVa^DSL, an external Domain-Specific Language (DSL) designed to specify virtual Learning Spaces enabling their automatic generation. To introduce CaVa^DSL language, the paper runs a case study, Museu Virtual Interativo da Fotografia (MVIF), presenting the specification for the museum's exhibiting rooms and their final layout. The process that analyzes and transforms the formal specification into the virtual Learning Spaces is briefly described to present the core engine of CaVa platform.
Cite as
Ricardo Giuliani Martini and Pedro Rangel Henriques. CaVa: Virtual Learning Spaces Formal Specification (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 10:1-10:10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{martini_et_al:OASIcs.SLATE.2018.10,
author = {Martini, Ricardo Giuliani and Henriques, Pedro Rangel},
title = {{CaVa: Virtual Learning Spaces Formal Specification}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {10:1--10:10},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.10},
URN = {urn:nbn:de:0030-drops-92687},
doi = {10.4230/OASIcs.SLATE.2018.10},
annote = {Keywords: domain-specific languages, formal specification, context free grammars, virtual museums, virtual learning spaces}
}
Document
Short Paper
Non-LR(1) Precedence Cascade Grammars (Short Paper)
Abstract
Precedence cascade is a well-known pattern for writing context-free grammars (CFGs) that model the syntax of expression languages. According to this method, precedence levels are represented by non-terminals, and operators' attributes are used to write syntax rules properly. In most cases, the resulting precedence cascade grammar (PCG) has neat properties that facilitate its implementation. In particular, many PCGs are LR(1) grammars, which serve as input for conventional bottom-up parser generators. However, for some cumbersome operator tables the method does not produce such neat grammars. This paper focuses on these cumbersome operator tables by identifying several conditions leading to non-LR(1) PCGs.
Cite as
José-Luis Sierra. Non-LR(1) Precedence Cascade Grammars (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 11:1-11:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{sierra:OASIcs.SLATE.2018.11,
author = {Sierra, Jos\'{e}-Luis},
title = {{Non-LR(1) Precedence Cascade Grammars}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {11:1--11:8},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.11},
URN = {urn:nbn:de:0030-drops-92696},
doi = {10.4230/OASIcs.SLATE.2018.11},
annote = {Keywords: grammarware, expression grammars, grammar patterns, grammar ambiguity, LR grammars}
}
Document
ASAPP 2.0: Advancing the state-of-the-art of semantic textual similarity for Portuguese
Abstract
Semantic Textual Similarity (STS) aims at computing the proximity of meaning transmitted by two sentences. In 2016, the ASSIN shared task targeted STS in Portuguese and released training and test collections. This paper describes the development of ASAPP, a system that participated in ASSIN, but has been improved since then, and now achieves the best results in this task. ASAPP learns a STS function from a broad range of lexical, syntactic, semantic and distributional features. This paper describes the features used in the current version of ASAPP, and how they are exploited in a regression algorithm to achieve the best published results for ASSIN to date, in both European and Brazilian Portuguese.
Cite as
Ana Alves, Hugo Gonçalo Oliveira, Ricardo Rodrigues, and Rui Encarnação. ASAPP 2.0: Advancing the state-of-the-art of semantic textual similarity for Portuguese. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 12:1-12:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{alves_et_al:OASIcs.SLATE.2018.12,
author = {Alves, Ana and Gon\c{c}alo Oliveira, Hugo and Rodrigues, Ricardo and Encarna\c{c}\~{a}o, Rui},
title = {{ASAPP 2.0: Advancing the state-of-the-art of semantic textual similarity for Portuguese}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {12:1--12:17},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.12},
URN = {urn:nbn:de:0030-drops-92709},
doi = {10.4230/OASIcs.SLATE.2018.12},
annote = {Keywords: natural language processing, semantic textual similarity, semantic relations, word embeddings, character n-grams, supervised machine learning}
}
Document
Evaluation of Distributional Models with the Outlier Detection Task
Abstract
In this article, we define the outlier detection task and use it to compare neural-based word embeddings with transparent count-based distributional representations. Using the English Wikipedia as text source to train the models, we observed that embeddings outperform count-based representations when their contexts are made up of bag-of-words. However, there are no sharp differences between the two models if the word contexts are defined as syntactic dependencies. In general, syntax-based models tend to perform better than those based on bag-of-words for this specific task. Similar experiments were carried out for Portuguese with similar results. The test datasets we have created for outlier detection task in English and Portuguese are released.
Cite as
Pablo Gamallo. Evaluation of Distributional Models with the Outlier Detection Task. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 13:1-13:8, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{gamallo:OASIcs.SLATE.2018.13,
author = {Gamallo, Pablo},
title = {{Evaluation of Distributional Models with the Outlier Detection Task}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {13:1--13:8},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.13},
URN = {urn:nbn:de:0030-drops-92717},
doi = {10.4230/OASIcs.SLATE.2018.13},
annote = {Keywords: distributional semantics, dependency analysis, outlier detection, similarity}
}
Document
Extending the Galician Wordnet Using a Multilingual Bible Through Lexical Alignment and Semantic Annotation
Abstract
In this paper we describe the methodology and evaluation of the expansion of Galnet - the Galician wordnet - using a multilingual Bible through lexical alignment and semantic annotation. For this experiment we used the Galician, Portuguese, Spanish, Catalan and English versions of the Bible. They were annotated with part-of-speech and WordNet sense using FreeLing. The resulting synsets were aligned, and new variants for the Galician language were extracted. After manual evaluation the approach presented a 96.8% accuracy.
Cite as
Alberto Simões and Xavier Gómez Guinovart. Extending the Galician Wordnet Using a Multilingual Bible Through Lexical Alignment and Semantic Annotation. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 14:1-14:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{simoes_et_al:OASIcs.SLATE.2018.14,
author = {Sim\~{o}es, Alberto and Guinovart, Xavier G\'{o}mez},
title = {{Extending the Galician Wordnet Using a Multilingual Bible Through Lexical Alignment and Semantic Annotation}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {14:1--14:13},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.14},
URN = {urn:nbn:de:0030-drops-92726},
doi = {10.4230/OASIcs.SLATE.2018.14},
annote = {Keywords: WordNet, lexical acquisition, parallel corpora, semantic annotation}
}
Document
Path Patterns Visualization in Semantic Graphs
Abstract
Graphs with a large number of nodes and edges are difficult to visualize. Semantic graphs add to the challenge since their nodes and edges have types and this information must be mirrored in the visualization. A common approach to cope with this difficulty is to omit certain nodes and edges, displaying sub-graphs of smaller size. However, other transformations can be used to abstract semantic graphs and this research explores a particular one, both to reduce the graph's size and to focus on its path patterns.
Antigraphs are a novel kind of graph designed to highlight path patterns using this kind of abstraction. They are composed of antinodes connected by antiedges, and these reflect respectively edges and nodes of the semantic graph. The prefix "anti" refers to this inversion of the nature of the main graph constituents.
Antigraphs trade the visualization of nodes and edges by the visualization of graph path patterns involving typed edges. Thus, they are targeted to users that require a deep understanding of the semantic graph it represents, in particular of its path patterns, rather than to users wanting to browse the semantic graph's content. Antigraphs help programmers querying the semantic graph or designers of semantic measures interested in using it as a semantic proxy. Hence, antigraphs are not expected to compete with other forms of semantic graph visualization but rather to be used a complementary tool.
This paper provides a precise definition both of antigraphs and of the mapping of semantic graphs into antigraphs. Their visualization is obtained with antigraphs diagrams. A web application to visualize and interact with these diagrams was implemented to validate the proposed approach. Diagrams of well-known semantic graphs are also presented and discussed.
Cite as
José Paulo Leal. Path Patterns Visualization in Semantic Graphs. In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 15:1-15:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{leal:OASIcs.SLATE.2018.15,
author = {Leal, Jos\'{e} Paulo},
title = {{Path Patterns Visualization in Semantic Graphs}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {15:1--15:15},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.15},
URN = {urn:nbn:de:0030-drops-92731},
doi = {10.4230/OASIcs.SLATE.2018.15},
annote = {Keywords: semantic graph visualization, linked data visualization, path pattern discovery, semantic graph transformation}
}
Document
Short Paper
Comparison of Segmentable Units as Indicators of Two Texts Being Parallel (Short Paper)
Abstract
A bitext produced from a Portuguese historical text and its English translation, Fernão Mendes Pinto's Pilgrimage, serves as a case study to describe the creation of a parallel corpus and investigate which linguistic and textual units are the best indicators of alignability. The process of building the corpus goes through preparation of transcriptions, annotation, segmentation and sentence alignment. Once the bitext is ready, the corpus is used to inquire which units appear as more relevant to predict that both texts are parallel. From the largest content units, those of chapters, to sentences, word types, tokens and characters, the latest, despite being the unit with less textual and linguistic significance, were found to be the best indicator of both texts being alignable.
Cite as
Afonso Xavier Canosa. Comparison of Segmentable Units as Indicators of Two Texts Being Parallel (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 16:1-16:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{canosa:OASIcs.SLATE.2018.16,
author = {Canosa, Afonso Xavier},
title = {{Comparison of Segmentable Units as Indicators of Two Texts Being Parallel}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {16:1--16:7},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.16},
URN = {urn:nbn:de:0030-drops-92747},
doi = {10.4230/OASIcs.SLATE.2018.16},
annote = {Keywords: parallel corpora, text alignment, bitexts}
}
Document
Short Paper
Less is more in incident categorization (Short Paper)
Abstract
The IT incident management process requires a correct categorization to attribute incident tickets to the right resolution group and obtain as quickly as possible an operational system, impacting the minimum as possible the business and costumers. In this work, we introduce automatic text classification, demonstrating the application of several natural language processing techniques and analyzing the impact of each one on a real incident tickets dataset. The techniques that we explore in the pre-processing of the text that describes an incident are the following: tokenization, stemming, eliminating stop-words, named-entity recognition, and TF xIDF-based document representation. Finally, to build the model and observe the results after applying the previous techniques, we use two machine learning algorithms: Support Vector Machine (SVM) and K-Nearest Neighbor (KNN). Two important findings result from this study: a shorter description of an incident is better than a full description of an incident; and, pre-processing has little impact on incident categorization, mainly due the specific vocabulary used in this type of text.
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Sara Silva, Ricardo Ribeiro, and Rubén Pereira. Less is more in incident categorization (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 17:1-17:7, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{silva_et_al:OASIcs.SLATE.2018.17,
author = {Silva, Sara and Ribeiro, Ricardo and Pereira, Rub\'{e}n},
title = {{Less is more in incident categorization}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {17:1--17:7},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.17},
URN = {urn:nbn:de:0030-drops-92755},
doi = {10.4230/OASIcs.SLATE.2018.17},
annote = {Keywords: machine learning, automated incident categorization, SVM, incident management, natural language}
}
Document
Short Paper
NLPPort: A Pipeline for Portuguese NLP (Short Paper)
Abstract
Although there are tools for some the most common natural language processing tasks in Portuguese, there is a lack of available cross-platform tools specifically targeted for Portuguese, from end to end, namely for integration in projects developed in Java. To address this issue, we have developed and tweaked, over the last half-dozen years, NLPPort, a set of tools that can be used in a pipelined fashion, which we have made publicly available. In this paper, we present the major features of such set of tools.
Cite as
Ricardo Rodrigues, Hugo Gonçalo Oliveira, and Paulo Gomes. NLPPort: A Pipeline for Portuguese NLP (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 18:1-18:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{rodrigues_et_al:OASIcs.SLATE.2018.18,
author = {Rodrigues, Ricardo and Gon\c{c}alo Oliveira, Hugo and Gomes, Paulo},
title = {{NLPPort: A Pipeline for Portuguese NLP}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {18:1--18:9},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.18},
URN = {urn:nbn:de:0030-drops-92768},
doi = {10.4230/OASIcs.SLATE.2018.18},
annote = {Keywords: natural language processing, tools, Portuguese}
}
Document
Short Paper
Predicting Performance Problems Through Emotional Analysis (Short Paper)
Abstract
In the cartoons, every time a character is nervous he/she begins to count to ten to keep calm. This is a technique, among hundreds, that helps to control the emotional state. However, what would be the impact if the emotions would not be controlled? Are the emotions important in terms of impairing the ability to perform tasks correctly?
Using a case study of typing text, this paper is about a process to predict the number of writing errors from a person based on the emotional state and some characteristics of the writing process. Using preprocessing techniques, lexicon-based approaches and machine learning, we achieved a percentage of 80% of correct values, when considering the emotional profile on the writing style.
Cite as
Ricardo Martins, José João Almeida, Pedro Rangel Henriques, and Paulo Novais. Predicting Performance Problems Through Emotional Analysis (Short Paper). In 7th Symposium on Languages, Applications and Technologies (SLATE 2018). Open Access Series in Informatics (OASIcs), Volume 62, pp. 19:1-19:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
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@InProceedings{martins_et_al:OASIcs.SLATE.2018.19,
author = {Martins, Ricardo and Almeida, Jos\'{e} Jo\~{a}o and Henriques, Pedro Rangel and Novais, Paulo},
title = {{Predicting Performance Problems Through Emotional Analysis}},
booktitle = {7th Symposium on Languages, Applications and Technologies (SLATE 2018)},
pages = {19:1--19:9},
series = {Open Access Series in Informatics (OASIcs)},
ISBN = {978-3-95977-072-9},
ISSN = {2190-6807},
year = {2018},
volume = {62},
editor = {Henriques, Pedro Rangel and Leal, Jos\'{e} Paulo and Leit\~{a}o, Ant\'{o}nio Menezes and Guinovart, Xavier G\'{o}mez},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.SLATE.2018.19},
URN = {urn:nbn:de:0030-drops-92773},
doi = {10.4230/OASIcs.SLATE.2018.19},
annote = {Keywords: emotion analysis, machine learning, natural processing language}
}