Decades ago, it was a challenge to generate (pseudo-) random numbers that had good statistical properties. The proliferation of desktop computers in the 1980s and '90s led to many advances in computational mathematics, including better ways to generate pseudorandom variates from a wide range of probability distributions. (For brevity, I
대한민국을 포함한 아시아태평양 지역의 데이터 및 AI 성숙도는 어느 정도일까요? ChatGPT 등장 이후 AI에 대한 관심이 급격히 높아지면서 많은 기업들이 AI 및 생성형 AI의 활용과 적용에 적극 나서고 있습니다. SAS는 최근 IDC에 의뢰해 기업의 AI 투자와 해결과제, 향후 계획에 대한 흥미로운 연구를 진행했습니다. 그 결과를 통해 AI 선도기업이 되기 위한
SoDA를 이용해 쉽게 배우는 데이터 과학 #3 지난 포스팅에서는 SoDA의 서비스 가입 방법을 알아보았습니다. SoDA는 클라우드 환경을 이용하기 때문에 따로 설치할 필요가 없었고, 클라우드 할당을 위한 서비스 가입이 필요했습니다. 이번에는 SoDA 사용 환경인 SAS Studio의 다양한 구성을 살펴보도록 하겠습니다. SoDA는 SAS Studio를 통해 사용할 수 있습니다. SAS Studio는 웹 브라우저로
The article "Order two-dimensional vectors by using angles" shows how to re-order a set of 2-D vectors by their angles. Because angles are on a circle, which has no beginning and no end, you must specify which vector will appear first in the list. The previous article finds the largest
Step behind the scenes to see the role of neural networks in detecting payment fraud.
Order matters. The order of variables in tables and rows of a correlation matrix can make a big difference in how easy it is to observed correlations between variables or groups of variables. There are many ways to order the variables, but this article shows how to display the variables
The global hype cycle of AI, driven in large part by ChatGPT, is dying down and real-world artificial intelligence (AI) adoption and application are taking hold. Early adopters are reaping rewards, and AI leaders are driving significant change in their business models. Banking as a sector was quick to grasp
Insurers are racing to adopt GenAI, despite concerns. See where the industry is headed.
In a correlation analysis, it is common to consider the correlations between all pairs of numerical variables. That is, if there are k numerical variables, most people examine the complete k x k matrix of correlations. This matrix is symmetric and has 1s on the diagonal, so more than half of the
수많은 산업에서 중추적인 역할을 맡게 된 클라우드 컴퓨팅은 조직이 분석과 머신 러닝 및 AI의 힘을 활용하여 인사이트를 얻고 혁신을 추구할 수 있도록 도와줍니다. *이 글은 Spiros Potamitis 가 작성한 내용을 SAS코리아에서 번역한 것입니다. 그러나 클라우드 컴퓨팅의 급속한 확대로 인해 클라우드의 탄소 발자국 역시 크게 증가했습니다. 알기 쉽게 비교하자면, 클라우드 컴퓨팅의
A previous article discusses the MakeString function, which you can use to convert an IML character vector into a string. This can be very useful. When I originally wrote the MakeString function, I was disappointed that I could not vectorize the computation. Recently, I learned about the COMBL function in
SAS' Jennifer Hargrove introduces the SAS Medication Adherence Risk model, a way to identify patients at high risk of being non-adherent to their medication therapy so that interventions can be provided to help patients remain adherent.
When the SAS Global Forum 2020 conference was cancelled by the global COVID-19 pandemic, I felt sorry for the customers and colleagues who had spent months preparing their presentations. One presentation I especially wanted to attend was by Bucky Ransdell and Randy Tobias: "Introducing PROC SIMSYSTEM for Systematic Nonnormal Simulation".
En la era de la transformación digital, la velocidad, la escalabilidad y la rentabilidad no son solo indicadores de desempeño; son factores decisivos que permiten a las empresas mantenerse competitivas. Hoy, en SAS, nos enorgullecemos de ver cómo nuestra plataforma de IA y analítica, SAS Viya, no solo cumple con
A previous article shows a simulation of two different models of a foraging animal. The first model is a random walk, which assumes that the animal chooses a random direction, then takes a step that is distributed according to a Gaussian random variable. In the second model, the animal again
秋の風物詩であるキンモクセイ（金木犀）は、オレンジ色のフルーティで甘い香りが特徴で、英名はまさしく「フレラント・オリーブ（Fragrant olive）」。香りを楽しむには朝がおすすめで、酵素が活発になるため香りが強くなるそう。ぜひ通勤・通学時に香ってほしい。 キンモクセイはすべて国から持ち込まれた雄株のみで増やしたクローンなので、通常の植物と違って、同じ地域では一斉に開花する。サクラの場合とは逆に、キンモクセイの開花は寒くなる地域から徐々に、東北から九州に向かって進んでいく。ちなみに北海道と沖縄には挿し木がないらしい。 さて、今春のサクラの開花が暖冬で約1週間遅れたのに続き、今秋のキンモクセイも平年より遅れ気味の開花。これは夏が長引いたのが影響しているはずである。実際に10月の平均気温を見ると、関東や近畿は平年より高め、中国地方や九州北部は平年並み、ということで関東や近畿で開花が遅れているとみている。 サクラの開花予測には積算気温が用いられるが（春になると回帰分析を思いだす）、キンモクセイも高温が続くと遅れるため、同様の指標が考えられる。より精緻な統計モデルで予測することも可能である。おくれじとキンモクセイの香りに浸りながら、開花日を予測してみたい。 住宅価格や企業の売上予測においても、ローン支払いの不履行の可能性を見通すにしても、因果解析の手法が用いられる。11～12月は、線形回帰、ロジスティック回帰、生存時間など因果解析のコースがオンパレード（トレーニングコース詳細とスケジュール | SAS）、興味があれば受講してみるのも良いだろう。 2024年11月初旬 相吉
In SAS, range attribute maps enable you to specify the range of values that determine the colors used for graphical elements. There are various examples that use the GTL to define a range attribute map, but fewer examples that show how to use a range attribute map with PROC SGPLOT.
They say nothing in life is certain other than death and taxes, but there something else I’ve found I can count on from experience: sending out invites for a party on social media only to receive a few affirmative responses and a whole slew of “maybe”. I know my friends
Investment in AI is an obvious target for the insurance sector. Insurers have always been interested in technology that helps detect and prevent fraud and improve underwriting efficiency while speeding processes and reducing – or at least not increasing – costs. But what is the reality in this highly regulated
Dans le paysage technologique actuel, les données synthétiques, nouveau sous ensemble de l’IA générative, apportent de nouvelles pistes de réflexion pour la création des modèles d'intelligence artificielle. Contrairement aux données traditionnelles, pouvant être limitées par des contraintes de biais, de quantité, ou encore des contraintes de confidentialité et de conformité,
Managing the explosion of paper documents is complicated and expensive. Intelligent Document Processing (IDP), also known as Document Intelligence, addresses those challenges among other benefits.
A common way to visualize the sample correlations between many numeric variables is to display a heat map that shows the Pearson correlation for each pair of variables, as shown in the image to the right. The correlation is a number in the range [-1, 1], where -1 indicated perfect
The INPUT function and PUT function in SAS are used to apply informats and formats (respectively) to data. For both functions, you must know in advance which informat or format you want to apply. For brevity, let's consider only applying a format. To use the PUT function, you must know
The global decline in bee populations has raised alarms worldwide, and Europe is no exception. Almost 30% of European bee species are at risk of extinction, prompting a wave of initiatives to safeguard these crucial pollinators. One such initiative is the Beehive Project, spearheaded by Daan Bijkerk, a data scientist
El futuro de la innovación empresarial no solo está llegando, está ocurriendo ahora. La reciente clausura del evento SAS Innovate On Tour 2024 en la Ciudad de México dejó claro que la inteligencia artificial generativa (GenAI) y la analítica avanzada están cambiando radicalmente la manera en que las organizaciones operan
In SAS, the INPUT and PUT functions are powerful functions that enable you to convert data from character type to numeric type and vice versa. They work by applying SAS formats or informats to data. You cannot fully understand the INPUT and PUT functions without understanding formats and informats in
SAS software supports two kinds of procedures: interactive and non-interactive. Most SAS procedures are non-interactive. They begin with a PROC statement, include one or more additional statements, and end with a RUN statement. When SAS encounters the RUN statement, the procedure executes all statements, then exits. On the other hand,
At SAS, we foster a spirit of creativity and encourage new and innovative ideas. Our people love asking, “What if?” to find unique solutions to our customers’ toughest problems, and each year, a number of our employees’ inventions are awarded patents by the United States Patent and Trademark Office. Thanks
A remarkable result in probability theory is the "three-sigma rule," which is a generic name for theorems that bound the probability that a univariate random variable will appear near the center of its distribution. This article discusses the familiar three-sigma rule for the normal distribution, a less-familiar rule for unimodal
秋の花といえば、「秋桜」という漢字名を持つコスモスが思い浮かぶ。コスモスはピンク、赤、白、黄、オレンジ、さらには複合色といったさまざまな色があり、実にカラフルである。発色やその遺伝的要因について統計的に研究することは面白いかもしれない。品種改良や育種に役立つ情報が得られるはずだ。 コスモスは非常に丈夫で、日当たりと風通しの良い場所であれば、土質をあまり選ばずに育つ。したがって、庭や花壇で栽培され、切り花や生け花などにも利用されてきた。コスモスの花壇のデザインに関する研究も興味深い。色の組み合わせや配置が視覚的、心理的にどう影響するかを統計的に分析すれば、より素敵なレイアウトやデザインが見つかるだろう。 さて、コスモスという名前は、ギリシャ語で「秩序」や「調和」を意味するそう。色の組み合わせがどれだけ秩序を保ち、調和しているかという視点で花壇のレイアウトやデザインを観察するのも、秋を楽しむ一つの方法かもしれない。 秩序や調和という意味に加え、花が星型に開いて輝く様子から、宇宙を意味する「コスモス」という名前が付けられたのかもしれない。 統計学の世界に長年身を置いてきた私にとって、機械学習やAIはまさに新大陸、いや宇宙と言っても過言ではない。ビッグデータとマシンパワーの力によって、統計学に手足が付いた、羽が生えたように進化したと言えると思う。SASでは、機械学習やAIのトレーニングコースが、中級から上級まで、年に数回開催されているので（トレーニングコース詳細とスケジュール | SAS）、ぜひ受講してみてはどうだろうか。 2024年10月初旬 相吉
