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Chronos: Visualizing slices of source-code history

Francisco Servant, James A. Jones
2013 2013 First IEEE Working Conference on Software Visualization (VISSOFT)  
In this paper, we present CHRONOS-a tool that enables the querying, exploration, and discovery of historical change events to source code.  ...  The tool implements a zoom-able user interface as a visualization of the history of the queried code to provide both a high-level view of the changes, which supports pattern recognition and discovery,  ...  Then, we would run the Display History Slice command. CHRONOS would then show a single visualization with the complete history of S A and S B .  ... 
doi:10.1109/vissoft.2013.6650547 dblp:conf/vissoft/ServantJ13 fatcat:thff2vdsqjcwlaadbc5bp5i45y

Chronos and KAIROS: MOSFIRE observations of post-starburst galaxies in z ∼ 1 clusters and groups

B. C. Lemaux, A. R. Tomczak, L. M. Lubin, P-F. Wu, R. R. Gal, N. Rumbaugh, D. D. Kocevski, G. K. Squires
2017 Monthly notices of the Royal Astronomical Society  
A sub-sample of these galaxies (∼150) were targeted for the initial phases of a near-infrared MOSFIRE spectroscopic campaign investigating the differences in selections of galaxies which had recently ended  ...  A comparison between the environments of the two types of post-starbursts suggests a picture in which the evolution of a post-starburst galaxy is considerably different in cluster environments than in  ...  All objects, those targeted and those which serendipitously fell in a slit, were visually inspected and assigned a spectroscopic redshift (hereafter z spec ) and a redshift quality code (Q) in the zspec  ... 
doi:10.1093/mnras/stx1579 fatcat:2zklhmjtifab3nd6l7rzhagnw4

Chrono::GPU: An Open-Source Simulation Package for Granular Dynamics Using the Discrete Element Method

Luning Fang, Ruochun Zhang, Colin Vanden Vanden Heuvel, Radu Serban, Dan Negrut
2021 Processes  
the history of tangential displacement, rolling frictional torques, and cohesion.  ...  We report on the code structure and highlight its use of mixed data types for reducing the memory footprint and increasing simulation speed.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/pr9101813 fatcat:bzf7zvbvkjcg3cii56d434plf4

History slicing

Francisco Servant, James A. Jones
2012 Proceedings of the ACM SIGSOFT 20th International Symposium on the Foundations of Software Engineering - FSE '12  
We also present our implementation of history slicing, Chronos, that includes a novel visualization of the entire evolution for the code of interest.  ...  Many software-engineering tasks require developers to understand the history and evolution of source code.  ...  Figure 4 is a screenshot of the history-slice visualization in Chronos. The history slice that is being visualized was computed from a slicing criterion that spanned two files.  ... 
doi:10.1145/2393596.2393646 dblp:conf/sigsoft/ServantJ12 fatcat:onyaz3sjzngkvkx3pjkxp2gz6a

Review on Program Slicing Techniques towards Program Comprehension Application

Rozita Kadar, Naemah Abdul Wahab, Jamal Othman
2018 Journal of Computing Research and Innovation  
Program slicing is the process of extracting parts of source code programs by tracing the programs' control and data flow related to some data item.  ...  One of the main challenges faced by programmers is to keep up with thousand or million lines of source code that needs to be read and understood.  ...  The first work proposed by Servant & Jones (2013) uses the history slicing method to discover the historical change events to the source code.  ... 
doi:10.24191/jcrinn.v2i1.24 fatcat:y5q5vzcharchbnottrdmv7ysoa

ChronoTwigger: A Visual Analytics Tool for Understanding Source and Test Co-evolution

Barrett Ens, Daniel Rea, Roiy Shpaner, Hadi Hemmati, James E. Young, Pourang Irani
2014 2014 Second IEEE Working Conference on Software Visualization  
One concept of interest is the coevolution of test code with source code, or how source and test files develop together over time.  ...  Applying visual analytics to large software systems can help users comprehend the wealth of information produced by source repository mining.  ...  Fig. 5 . 5 Each time slice of the source revision history overlaps the previous slice by 75%.  ... 
doi:10.1109/vissoft.2014.28 dblp:conf/vissoft/EnsRSHYI14 fatcat:mmkt6jdmhjcednkfdqynwubmdq

Visual Storytelling of Development Sessions

Roberto Minelli, Lorenzo Baracchi, Andrea Mocci, Michele Lanza
2014 2014 IEEE International Conference on Software Maintenance and Evolution  
As a first step we present our approach to analyze development sessions in the form of visual storytelling. We illustrate our initial catalogue of visualizations through two development stories.  ...  They provide different tools and user interfaces (UI) to interact with the source code, such as browsers, debuggers, and inspectors.  ...  We gratefully acknowledge the financial support of the Swiss National Science foundation for the project "HI-SEA" (SNF Project No. 146734).  ... 
doi:10.1109/icsme.2014.65 dblp:conf/icsm/MinelliBML14 fatcat:blrtoti4r5buzdeybxrbvihige

Visualization of fine-grained code change history

YoungSeok Yoon, Brad A. Myers, Sebon Koo
2013 2013 IEEE Symposium on Visual Languages and Human Centric Computing  
We present two visualizations of fine-grained code change history, which actively interact with the code editor: a timeline visualization, and a code history diff view.  ...  The code history diff view shows the history of any particular code fragment, allowing developers to move through the history simply by dragging the marker back and forth through the timeline to instantly  ...  Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect those of KFAS or the National Science Foundation.  ... 
doi:10.1109/vlhcc.2013.6645254 dblp:conf/vl/YoonMK13 fatcat:jequvi4szjek3agzfrx3z7ojfa

Bayesian analysis of the dynamic cosmic web in the SDSS galaxy survey

Florent Leclercq, Jens Jasche, Benjamin Wandelt
2015 Journal of Cosmology and Astroparticle Physics  
Our results constitute quantitative chrono-cosmography of the complex web-like patterns underlying the observed galaxy distribution.  ...  By also providing the history of these structure maps, the approach allows an analysis of the origin and growth of the early traces of the cosmic web present in the initial density field and of the evolution  ...  They count among the first steps towards accurate chrono-cosmography, the subject of simultaneously analyzing the morphology and formation history of the inhomogeneous Universe.  ... 
doi:10.1088/1475-7516/2015/06/015 fatcat:hbkiynhz2rdyzncmrqorb2bj4y

Past and present cosmic structure in the SDSS DR7 main sample

J. Jasche, F. Leclercq, B.D. Wandelt
2015 Journal of Cosmology and Astroparticle Physics  
We present a chrono-cosmography project, aiming at the inference of the four dimensional formation history of the observed large scale structure from its origin to the present epoch.  ...  The level of detail of inferred results and the high degree of control on observational uncertainties pave the path towards high precision chrono-cosmography, the subject of simultaneously studying the  ...  Special thanks also go to Stéphane Rouberol for his support during the course of this work, in particular for guaranteeing flawless use of all required computational resources.  ... 
doi:10.1088/1475-7516/2015/01/036 fatcat:b7updjmanzbhlgavse5bmjdmsu

Constructing Sami National Heritage: Encounters Between Tradition and Modernity in Sami Art

Hanna Horsberg Hansen
2016 Journal of Art History  
Two small slices cut into the fish skins provide spaces for text: eallin ("life" in Sami) and livet ("life" in Swedish) in one slice. In the other slice, the text is always with me.  ...  Heritage produces a more open space almost everybody can move into operating with open sources and interfaces.  ... 
doi:10.1080/00233609.2016.1207701 fatcat:3w5mav7jbfdyrda37ljclukplm

The worst-case execution-time problem—overview of methods and survey of tools

Reinhard Wilhelm, Tulika Mitra, Frank Mueller, Isabelle Puaut, Peter Puschner, Jan Staschulat, Per Stenström, Jakob Engblom, Andreas Ermedahl, Niklas Holsti, Stephan Thesing, David Whalley (+3 others)
2008 ACM Transactions on Embedded Computing Systems  
The determination of upper bounds on execution times, commonly called worst-case execution times (WCETs), is a necessary step in the development and validation process for hard real-time systems.  ...  The Chronos Research Prototype from National University of Singapore Chronos 3 is an open-source static WCET analysis tool 6.5.1 Functionality of the tool.  ...  The purpose of HEPTANE is to obtain upper bounds for the execution times of C programs by a static analysis of their code (source code and binary code).  ... 
doi:10.1145/1347375.1347389 fatcat:lxqtkxuaijcnlb6wy7suu7pdmq

PDF Version: How Photography Changed Time By Rick Doble

Rick Doble
2016 Figshare  
Our modern sense of time was radically changed with the invention of photography. The past could now be visualized and frozen in fine detail.  ...  In addition our personal sense of time was changed with family albums and our ability to now record our own past with precision.  ...  These long and short exposures give us a slice of time and the power to see worlds unavailable to the eye.  ... 
doi:10.6084/m9.figshare.3980085.v1 fatcat:bwulnvayxre4npnizyfb6g7fbq

3D modelling of geological and anthropogenic deposits at the World Heritage Site of Bryggen in Bergen, Norway

Johannes de Beer, Simon J. Price, Jonathan R. Ford
2012 Quaternary International  
The landscape of many historic cities and the character of their shallow subsurface environments are defined by a legacy of interaction between anthropogenic and geological processes.  ...  This paper presents the status of 3D framework modelling at Bryggen in Norway as an example.  ...  This paper is part of a research programme on groundwater and cultural heritage, financed by the Geological Survey of Norway and Riksantikvaren.  ... 
doi:10.1016/j.quaint.2011.06.015 fatcat:yqeldhr3hvaxdlspwso7jh4qsa

Opium: an extendable trace analyzer for Prolog

Mireille Ducassé
1999 The Journal of Logic Programming  
Traces of program executions are a helpful source of infc~rmation for prograna debugging.  ...  It provides a trace query language and abstract views of executions. Users can therefore examine program executions at the levels of abstraction which suit them.  ...  Pascal Brisset, Yves Deville, Erwan Jahier, Sarah Mallet, Jacques Noy6 and St~phane Schoenig gave fruitful comments on this and previous versions of (parts of) this article.  ... 
doi:10.1016/s0743-1066(98)10036-5 fatcat:3cmsod22fjhvpieg3dl5oebgeu
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