Stack Overflow, a leading Q&A platform for developers, is a substantial reservoir of

code snippets. Nevertheless, the incompatibility issues between versions, particularly 2 and 3, introduce substantial challenges that can potentially jeopardize the utility of these code snippets. This empirical study dives deep into the challenges of version inconsistencies on the interpretation and application of code snippets on Stack Overflow. Our empirical study exposes the prevalence of version compatibility issues on Stack Overflow. It further emphasizes an apparent deficiency in version-specific identification, a critical element that facilitates the identification and utilization of code snippets. These challenges, primarily arising from the lack of backward compatibility between major versions, pose significant hurdles for developers relying on Stack Overflow for code references and learning. This study, therefore, signifies the importance of proactively addressing these compatibility issues in code snippets. It advocates for enhanced tools and strategies to assist developers in efficiently navigating through the version complexities on platforms like Stack Overflow. By highlighting these concerns and providing a potential remedy, we aim to contribute to a more efficient and effective programming experience on Stack Overflow and similar platforms.

抄録全体を表示

Reptile-associated nidoviruses (serpentoviruses) have been reported to cause proliferative interstitial pneumonia in pythons and other reptile species. A captive, younger than 2 years old, intact female ball

(

Python

regius) showed increased oral mucus, wheezing, and audible breathing with weight loss. Gross and microscopic examination revealed large amounts of mucus in the esophagus and proliferative interstitial pneumonia. Serpentovirus genes were detected from the lung tissues by polymerase chain reaction. The current serpentoviruses was phylogenetically grouped with the serpentovirus previously identified in the US. No case of serpentovirus infection has been reported in Asia. The present report provides information of complete genome sequence and global distribution of serpentovirus.

抄録全体を表示

上海市は中国最大都市であり，近年，都市規模が広がっている。ヒートアイランド現象は深刻となっていくという背景に，都市分析，特に都市小気候分析には，２次元の土地利用分類及び３次元の都市建築データが必要だと思われる。

近年では，google earth engine（GEE）という新たなプラットフォームを用いることにより，土地利用分類などリモートセンシングデータの分析効率が高まっている。しかし，GEEはベクターデータの処理と可視化などに課題が残っている。

そして，発展途上国は政策や技術などの制約で，建築データが足りないという課題が残っている。

本研究は

の'geemap'と'leafmap'を使用して，リモートセンシングデータの処理と計算，そして，建築データのみ抽出することを目的とした。

抄録全体を表示

機械学習やデータサイエンスを実践する基盤プログラミング言語として

が注目されている．本解説では非線形問題，特に系にみられる周期解の分岐問題について，を用いたアプローチの詳細を述べる．分岐計算アルゴリズムを可読性高く実装でき，計算機やOSに依存せず，対話処理による試行錯誤が可能となる．幾つかの特徴的なコードを示しながら，分岐問題に対するの優位点を述べる．また，Neimark-Sacker分岐におけるbialternate積を用いた解法のコンパクトな実装，及びSympyを用いたヘシアン生成自動化過程についても述べる．

抄録全体を表示

映像の内容把握を支援する映像ハンドリング研究を効率よく進めるために，スクリプト言語 から，カット点やカメラワーク検出などの技術を容易に扱えるようにする/Vk というプログラミング環境を構築した．/Vk を用いると，映像ファイルからフレーム画像や音声データを取り出して，映像の構造化や検索のためのインデクス付け，要約などの加工を容易に実装することができる．また，OSS のコンピュータビジョンライブラリOpenCV や，数値演算ライブラリNumPy，SciPy と組み合わせることで，より高度な映像認識処理を実現することができる．本稿では，/Vk のアーキテクチャや，C++と比べた生産性評価，アプリケーションの例を示す．

抄録全体を表示

On June 6, 1970, a number of specimens of tongue worms were collected from the lung of the reticulate ,

Python

reticulatus, which had been captured in Southeast Asia and died in the “Amazonland” located in Beppu, Oita Prefecture. They were identified asArmillifer moniliformis heymonsiby the follow morphological characters.
Female: Body length 62 to 85 mm, scolex 6 to 7 mm long and 4 to 5 mm wide, and the number of abdominal rings 27 to 30.
Male: Body length 20 to 24 mm, scolex about 4 mm long and 4 mm wide, and the number of abdominal rings 21 or 22. The ventral part from the posterior of head to the middle of body is armed with about 20 to 24 thorn-like hooks arranged in two rows. Egg is oval, 0.068 to 0.080 mm by 0.050 to 0.058 mm.

抄録全体を表示

The computation of holographic reconstruction in digital holography has been accelerated by graphics processing units (GPUs). CUDA is an extension of the C/C++ language for GPU programming and is widely used for its performance and accessibility. However, CUDA is difficult to implement for beginners due to its memory management, hardware execution unit declarations, and kernel definitions. In this study, we used CuPy, a GPU computation library for

, to reimplement the holographic reconstruction algorithm in and to compare it with the CUDA implementation. The implementation was only 70 lines, less than a third of the CUDA implementation. In addition, holographic reconstruction on a GPU in was approximately 20 times faster than a CPU implemented in C++, but approximately 2.5 times slower than the execution on the GPU implemented in CUDA. Our results demonstrate the usefulness of with CuPy for implementing and executing image measurement processes on GPUs.

抄録全体を表示

The

programing language is becoming a promising tool for data analysis in various fields. However, little attention has been paid to using in the field of analytical chemistry, though recent advances in instrumental analysis require robust and reliable data analysis. In order to overcome the difficulty in accurate analysis, multivariate analysis, or chemometrics, has been widely applied to various kinds of data obtained by instrumental analysis. In the present work, the potential usefulness of for chemometrics and related fields in chemistry is reviewed. Many practical tools for chemometrics, e.g., principal component analysis (PCA), partial least squares (PLS), support vector machine (SVM), etc., are included in the scikit-learn machine learning (ML) library for . Other useful libraries such as pyMCR for multivariate curve resolution (MCR), 2Dpy for two-dimensional correlation spectroscopy (2D-COS), etc. can be obtained from GitHub. For these reasons, a computational environment for chemometrics is easily constructed in .

抄録全体を表示

Compressed sensing is a rapidly growing research field in signal and image processing, machine learning, statistics, and systems control. In this survey paper, we provide a review of the theoretical foundations of compressed sensing and present state-of-the-art algorithms for solving the corresponding optimization problems. Additionally, we discuss several practical applications of compressed sensing, such as group testing, sparse system identification, and sparse feedback gain design, and demonstrate their effectiveness through

programs. This survey paper aims to contribute to the advancement of compressed sensing research and its practical applications in various scientific disciplines.

抄録全体を表示

This paper demonstrates from a case study that the

language can practically be used for network-distance-based spatial accessibility analysis. In the case study, we analyze the spatial accessibility to convenience stores in Hirosaki. First, we show that road network data provided by OpenStreetMap can easily be obtained with the OSMnx library. Second, we show the code snippet that calculates a road-network-based distance matrix. Finally, we calculate two types of accessibility measures: nearest neighbor distance and cumulative opportunities. We show that the calculation can be done very effectively by list comprehension in .

抄録全体を表示

映像の内容把握を支援する映像ハンドリング研究を効率よく進めるために,スクリプト言語から,カット点やカメラワーク検出などの技術を容易に扱えるようにする/Vkというプログラミング環境を構築した./Vkを用いると,映像ファイルからフレーム画像や音声データを取り出して,映像の構造化や検索のためのインデクス付け,要約などの加工を容易に実装することができる.また,OSSのコンピュータビジョンライブラリOpenCVや,数値演算ライブラリNumPy, SciPyと組み合わせることで,より高度な映像認識処理を実現することができる.本稿では,/Vkのアーキテクチャや,C++と比べた生産性評価,アプリケーションの例を示す.

抄録全体を表示

新著紹介

パーフェクト

、ハイパフォーマンス

抄録全体を表示

PsychoPy is an open-source software for creating experiments in behavior science. It is written in

for the most part and has been actively developed for years. Resent releases of PsychoPy add support for 3, creating browser-based experiments and sharing experiments on the web. In addition, a new online service named Pavlovia was launched to support browser-based experiment and experiment sharing. This article introduces current status of these new features. PsychoPy now works with 3 though some hardware incompatibility and bugs remain. Experiments composed of basic components of PsychoPy Builder can be performed on web browsers. Users can search and share experiments registered on Pavlovia if allowed by the owner.

抄録全体を表示

最近，特許分析の比重が高まり，かつ扱うデータの量と種類が多くなっているのを実感している。それに伴い，使うツールもエクセルやパテントマップ作成ソフトから，

といったプログラミング言語に移る必要が出てきた。これらのツールは高速にデータを処理でき，自動化に役立つだけでなく，毎回の手作業を排除することができ，分析の再現性，信頼性を高めることができる。そのため，今回はデータ分析によく用いられるプログラミング言語である「」，特にその中のデータ分析ライブラリである「pandas」を用いた特許データの処理（前処理，集計，可視化）について紹介する。

抄録全体を表示