713 research outputs found
Human Rights and Sovereignty
By exploring a genealogy of the ideas of human rights and sovereignty, I will attempt to shed light on the problems of nation-state, its violence and its power. 要旨 人権と主権の観念の系譜を探究することで、国民国家とその暴力、その権力の問題を明らかにする
Bug or Not? Bug Report Classification Using N-Gram IDF
Previous studies have found that a significant number of bug reports are
misclassified between bugs and non-bugs, and that manually classifying bug
reports is a time-consuming task. To address this problem, we propose a bug
reports classification model with N-gram IDF, a theoretical extension of
Inverse Document Frequency (IDF) for handling words and phrases of any length.
N-gram IDF enables us to extract key terms of any length from texts, these key
terms can be used as the features to classify bug reports. We build
classification models with logistic regression and random forest using features
from N-gram IDF and topic modeling, which is widely used in various software
engineering tasks. With a publicly available dataset, our results show that our
N-gram IDF-based models have a superior performance than the topic-based models
on all of the evaluated cases. Our models show promising results and have a
potential to be extended to other software engineering tasks.Comment: 5 pages, ICSME 201
Using High-Rising Cities to Visualize Performance in Real-Time
For developers concerned with a performance drop or improvement in their
software, a profiler allows a developer to quickly search and identify
bottlenecks and leaks that consume much execution time. Non real-time profilers
analyze the history of already executed stack traces, while a real-time
profiler outputs the results concurrently with the execution of software, so
users can know the results instantaneously. However, a real-time profiler risks
providing overly large and complex outputs, which is difficult for developers
to quickly analyze. In this paper, we visualize the performance data from a
real-time profiler. We visualize program execution as a three-dimensional (3D)
city, representing the structure of the program as artifacts in a city (i.e.,
classes and packages expressed as buildings and districts) and their program
executions expressed as the fluctuating height of artifacts. Through two case
studies and using a prototype of our proposed visualization, we demonstrate how
our visualization can easily identify performance issues such as a memory leak
and compare performance changes between versions of a program. A demonstration
of the interactive features of our prototype is available at
https://youtu.be/eleVo19Hp4k.Comment: 10 pages, VISSOFT 2017, Artifact:
https://github.com/sefield/high-rising-city-artifac
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