J. Vis. Lang. Sentient Syst.最新文献

Smart City Control Room Dashboards: Big Data Infrastructure, from data to decision support 智慧城市控制室仪表板:大数据基础设施，从数据到决策支持

J. Vis. Lang. Sentient Syst. Pub Date : 2018-12-01 DOI: 10.18293/VLSS2018-030

M. Marazzini, N. Mitolo, P. Nesi, M. Paolucci

引用次数: 9

Dominant Colors as Image Content Descriptors: A Study with Users 主色作为图像内容描述符:用户研究

J. Vis. Lang. Sentient Syst. Pub Date : 2018-12-01 DOI: 10.18293/VLSS2018-034

Soraia M. Alarcão, R. Pavão, Manuel J. Fonseca

引用次数: 0

Enriching Image Datasets with Unrestrained Emotional Data: A Study with Users 用不受约束的情感数据丰富图像数据集:对用户的研究

J. Vis. Lang. Sentient Syst. Pub Date : 2018-12-01 DOI: 10.18293/VLSS2018-033

Soraia M. Alarcão, Manuel J. Fonseca

引用次数: 0

A Visual Debugging Aid based upon Discriminative Graph Mining 基于判别图挖掘的可视化调试工具

J. Vis. Lang. Sentient Syst. Pub Date : 2018-12-01 DOI: 10.18293/VLSS2018-029

J. Leopold, Nathan Eloe, Jeffrey Gould, E. Willard

{"title":"A Visual Debugging Aid based upon Discriminative Graph Mining","authors":"J. Leopold, Nathan Eloe, Jeffrey Gould, E. Willard","doi":"10.18293/VLSS2018-029","DOIUrl":"https://doi.org/10.18293/VLSS2018-029","url":null,"abstract":"Why doesn’t my code work? Instructors for introductory programming courses frequently are asked that question. Often students understand the problem they are trying to solve well enough to specify a variety of input and output scenarios. However, they lack the ability to identify where the bug is occurring in their code. Mastering the use of a full-feature debugger can be difficult at this stage in their computer science education. But simply providing a hint as to where the problem lies may be sufficient to guide the student to add print statements or do a hand-trace focusing on a certain section of the code. Herein we present a software tool which, given a C++ program, some sample inputs, and respective expected outputs, uses discriminative graph mining to identify which lines in the program are most likely the source of a bug. Additionally, the particular operators (relational, logical, and arithmetic) that are used in the code may be considered in recommending where the bug may be. The tool includes a visual display of the control flow graph for each test case, allowing the user to step through the statements executed. Keywords-debugging; graph; data mining; visualization","PeriodicalId":297195,"journal":{"name":"J. Vis. Lang. Sentient Syst.","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128751633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Spider Diagrams with Absence: Inference Rules for Clutter Reduction 不存在的蜘蛛图:减少杂波的推理规则

J. Vis. Lang. Sentient Syst. Pub Date : 2018-09-17 DOI: 10.18293/VLSS2018-032

Gem Stapleton, Lopamudra Choudhury, M. K. Chakraborty

{"title":"Spider Diagrams with Absence: Inference Rules for Clutter Reduction","authors":"Gem Stapleton, Lopamudra Choudhury, M. K. Chakraborty","doi":"10.18293/VLSS2018-032","DOIUrl":"https://doi.org/10.18293/VLSS2018-032","url":null,"abstract":"Spider diagrams represent sets, their cardinalities and, sometimes, the specific individuals within those sets. They are expressively equivalent to monadic first-order logic with equality. Typically, diagrammatic logics with this level of expressiveness are not equipped to directly express the absence of an individual from a set. Instead, individuals must be asserted to be present and, thus, absent from the set’s complement. The first time that absence could be directly asserted was in Venn-i. Since then, it been shown that in a related system called Venn-ie (a monadic first-order logic without equality) the inclusion of absence information can significantly reduce diagram clutter. In this paper, we explore an extension of spider diagrams to include direct representation of the absence of individuals from sets. We identify necessary and sufficient conditions for satisfiability, allowing us to define an inconsistency rule allowing significant reductions in diagram clutter. Building on that, we introduce sound inference rules specifically related to spiders (which represent elements, individuals or their absence) that alter the levels of clutter in consistent diagrams. In the context of these rules, we explore the implications of including absence information for reducing clutter. In particular, we show that the significant benefits, in terms of clutter reduction, seen through the use of absence in Venn-ie do not manifest to such an extent in spider diagrams.","PeriodicalId":297195,"journal":{"name":"J. Vis. Lang. Sentient Syst.","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125232179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Edge-based Graph Grammar Formalism and its Support System 一种基于边的图语法形式体系及其支持系统

J. Vis. Lang. Sentient Syst. Pub Date : 2018-07-01 DOI: 10.18293/SEKE2018-015

Yufeng Liu, Zhan Shi, Yingfeng Wang, Yang Zou, Jun Kong, Kang Zhang, Xiaoqin Zeng

引用次数: 3

Lessons in Combining Block-based and Textual Programming 结合基于块和文本编程的课程

J. Vis. Lang. Sentient Syst. Pub Date : 2017-07-05 DOI: 10.18293/VLSS2017-007

Michael Homer, J. Noble

引用次数: 15

How Block-based Languages Support Novices: A Framework for Categorizing Block-based Affordances 基于块的语言如何支持新手:一个分类基于块的功能的框架

J. Vis. Lang. Sentient Syst. Pub Date : 2017-07-05 DOI: 10.18293/VLSS2017-011

David Weintrop, U. Wilensky

{"title":"How Block-based Languages Support Novices: A Framework for Categorizing Block-based Affordances","authors":"David Weintrop, U. Wilensky","doi":"10.18293/VLSS2017-011","DOIUrl":"https://doi.org/10.18293/VLSS2017-011","url":null,"abstract":"The ability to express ideas in a computationally meaningful way is becoming increasingly important in our technological world. In response to the growing importance of computational literacy skills, new intuitive and accessible programming environments are being designed. This paper presents a framework for classifying the ways that block-based introductory programming environments support novices. We identify four distinct roles that these graphical languages play in the activity of programming: (1) serving as a means for expressing ideas to the computer, (2) providing a record of previously articulated intentions, (3) acting as a source of ideas for construction, and (4) mediating the meaning-making process. Using data from a study of novices programming with a custom designed block-based language, we provide examples of each role along with a discussion of the design implications of these findings. In doing so, we contribute to our understanding of the relationship between the design of programming representations and their ability to support computational literacy. The paper concludes with a discussion of the potential for this framework beyond block-based environments to programming languages more broadly.","PeriodicalId":297195,"journal":{"name":"J. Vis. Lang. Sentient Syst.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130184607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Moving Beyond Syntax: Lessons from 20 Years of Blocks Programing in AgentSheets 超越语法:从20年的AgentSheets块编程的经验教训

J. Vis. Lang. Sentient Syst. Pub Date : 2017-07-05 DOI: 10.18293/VLSS2017-010

A. Repenning

{"title":"Moving Beyond Syntax: Lessons from 20 Years of Blocks Programing in AgentSheets","authors":"A. Repenning","doi":"10.18293/VLSS2017-010","DOIUrl":"https://doi.org/10.18293/VLSS2017-010","url":null,"abstract":"The blocks programming community has been preoccupied with identifying syntactic obstacles that keep novices from learning to program. Unfortunately, this focus is now holding back research from systematically investigating various technological affordances that can make programming more accessible. Employing approaches from program analysis, program visualization, and real-time interfaces can push blocks programming beyond syntax towards the support of semantics and even pragmatics. Syntactic support could be compared to checking spelling and grammar in word processing. Spell checking is relatively simple to implement and immediately useful, but provides essentially no support to create meaningful text. Over the last 25 years, I have worked to empower students to create their own games, simulations, and robots. In this time I have explored, combined, and evaluated a number of programming paradigms. Every paradigm including data flow, programming by example, and programming through analogies brings its own set of affordances and obstacles. Twenty years ago, AgentSheets combined four key affordances of blocks programming, and since then has evolved into a highly accessible Computational Thinking Tool. This article describes the journey to overcome first syntactic, then semantic, and most recently pragmatic, obstacles in computer science education.","PeriodicalId":297195,"journal":{"name":"J. Vis. Lang. Sentient Syst.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115738327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 47

Design Considerations to Increase Block-based Language Accessibility for Blind Programmers Via Blockly 通过Blockly为盲人程序员增加基于块的语言可访问性的设计考虑

J. Vis. Lang. Sentient Syst. Pub Date : 2017-07-05 DOI: 10.18293/VLSS2017-013

S. Ludi, M. Spencer

引用次数: 17