The document discusses concepts related to stationary and non-stationary time series data. It provides examples of time series data that are non-stationary, exhibiting changing means and non-zero correlation over time, as well as examples of stationary time series with constant means and zero correlation as time increases. The document also discusses techniques for identifying non-stationary processes, such as examining correlograms, and formal unit root tests to establish the stationarity of time series data.
Large data sets comprising multiple correlating attributes may include phenomena hard to identify and understand using traditional data analysis and visualization methods. HeatMiner is a new visual data mining technology which visualizes the data as three-dimensional heatmaps. Even complex patterns missed by other methods are easy to recognize from 3D-heatmaps with a single glance. Go and try HeatMiner with your own data at the Cloud’N’Sci.fi Algorithms-as-a-Service marketplace!
Presentacion Festival Agua Viva Canarias - Atun rojoSebastián Losada
Presentación realizada en el Festival AguaViva Canarias sobre el uso de mediadas espaciales para la protección del atún rojo / Presentation on the use of spatial measures for the protection of bluefin tuna at the AquaViva Canarias Festival
Large data sets comprising multiple correlating attributes may include phenomena hard to identify and understand using traditional data analysis and visualization methods. HeatMiner is a new visual data mining technology which visualizes the data as three-dimensional heatmaps. Even complex patterns missed by other methods are easy to recognize from 3D-heatmaps with a single glance. Go and try HeatMiner with your own data at the Cloud’N’Sci.fi Algorithms-as-a-Service marketplace!
Presentacion Festival Agua Viva Canarias - Atun rojoSebastián Losada
Presentación realizada en el Festival AguaViva Canarias sobre el uso de mediadas espaciales para la protección del atún rojo / Presentation on the use of spatial measures for the protection of bluefin tuna at the AquaViva Canarias Festival
Presentation by Avner Vengosh, Ph.D., Nicholas School of the Environment, Duke University for a hydrofracking forum hosted by the Cary Institute of Ecosystem Studies in Millbrook, NY on May 5, 2012.
Shortening distances with destination branding inglésÁlvaro Fierro
This study shows using econometric techniques that geographic distance does not influence whether the mark is sufficiently embedded in the collective imagination. We as examples mark places near Bilbao
Presentation by Avner Vengosh, Ph.D., Nicholas School of the Environment, Duke University for a hydrofracking forum hosted by the Cary Institute of Ecosystem Studies in Millbrook, NY on May 5, 2012.
Shortening distances with destination branding inglésÁlvaro Fierro
This study shows using econometric techniques that geographic distance does not influence whether the mark is sufficiently embedded in the collective imagination. We as examples mark places near Bilbao
Analyzing professional writing from multiple sources via keystroke logging wi...Mariëlle Leijten
Full reference: "Leijten, M., & Van Waes, L. (2013). Workshop: Analyzing professional writing from multiple sources via keystroke logging
with Inputlog. Paper presented at the X. Prowitec Symposium: Methods in Writing Process Research, Hamburg.
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Automatic extraction and manual validation of a hierarchical English-Swedish ...Jody Foo
Several methods can be applied to create a set of validated terms from existing documents. In this paper we describe an automatic bilingual term candidate extraction method, and the validation process used to create a hierarchical patent terminology. The process described was used to extract terms from patent texts, commissioned by the Swedish Patent Office with the purpose of using the terms for machine translation. Information on the correct linguistic inflection patterns and hierarchical partitioning of terms based on their use are of utmost importance.
The process contains six phases, 1) Analysis of the source material and system configuration; 2) Term candidate extraction; 3) Term candidate filtering and initial linguistic validation; 4) Manual validation by domain experts; 5) Final linguistic validation; and 6) Publishing the validated terms.
Input to the extraction process consisted of more than 91.000 patent document pairs in English and Swedish, 565 million words in English and 450 million words in Swedish. The English documents were supplied in EBD SGML format and the Swedish documents were supplied in OCR processed scans of patent documents. After grammatical and statistical analysis, the documents were word aligned. Using the word aligned material, candidate terms were extracted based on linguistic patterns. 750,000 term candidates were extracted and stored in a relational database. The term candidates were processed in 8 months resulting in 181.000 unique validated term pairs which were then exported into several hierarchically organized OLIF files.
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Taurus Zodiac Sign_ Personality Traits and Sign Dates.pptxmy Pandit
Explore the world of the Taurus zodiac sign. Learn about their stability, determination, and appreciation for beauty. Discover how Taureans' grounded nature and hardworking mindset define their unique personality.
Enterprise Excellence is Inclusive Excellence.pdfKaiNexus
Enterprise excellence and inclusive excellence are closely linked, and real-world challenges have shown that both are essential to the success of any organization. To achieve enterprise excellence, organizations must focus on improving their operations and processes while creating an inclusive environment that engages everyone. In this interactive session, the facilitator will highlight commonly established business practices and how they limit our ability to engage everyone every day. More importantly, though, participants will likely gain increased awareness of what we can do differently to maximize enterprise excellence through deliberate inclusion.
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Enterprise Excellence is a holistic approach that's aimed at achieving world-class performance across all aspects of the organization.
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A way to engage all in creating Inclusive Excellence. Lessons from the US military and their parallels to the story of Harry Potter. How belt systems and CI teams can destroy inclusive practices. How leadership language invites people to the party. There are three things leaders can do to engage everyone every day: maximizing psychological safety to create environments where folks learn, contribute, and challenge the status quo.
Who might benefit? Anyone and everyone leading folks from the shop floor to top floor.
Dr. William Harvey is a seasoned Operations Leader with extensive experience in chemical processing, manufacturing, and operations management. At Michelman, he currently oversees multiple sites, leading teams in strategic planning and coaching/practicing continuous improvement. William is set to start his eighth year of teaching at the University of Cincinnati where he teaches marketing, finance, and management. William holds various certifications in change management, quality, leadership, operational excellence, team building, and DiSC, among others.
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Remote sensing and monitoring are changing the mining industry for the better. These are providing innovative solutions to long-standing challenges. Those related to exploration, extraction, and overall environmental management by mining technology companies Odisha. These technologies make use of satellite imaging, aerial photography and sensors to collect data that might be inaccessible or from hazardous locations. With the use of this technology, mining operations are becoming increasingly efficient. Let us gain more insight into the key aspects associated with remote sensing and monitoring when it comes to mining.
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
Premium MEAN Stack Development Solutions for Modern BusinessesSynapseIndia
Stay ahead of the curve with our premium MEAN Stack Development Solutions. Our expert developers utilize MongoDB, Express.js, AngularJS, and Node.js to create modern and responsive web applications. Trust us for cutting-edge solutions that drive your business growth and success.
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Affordable Stationery Printing Services in Jaipur | Navpack n PrintNavpack & Print
Looking for professional printing services in Jaipur? Navpack n Print offers high-quality and affordable stationery printing for all your business needs. Stand out with custom stationery designs and fast turnaround times. Contact us today for a quote!
What are the main advantages of using HR recruiter services.pdfHumanResourceDimensi1
HR recruiter services offer top talents to companies according to their specific needs. They handle all recruitment tasks from job posting to onboarding and help companies concentrate on their business growth. With their expertise and years of experience, they streamline the hiring process and save time and resources for the company.
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
Improving profitability for small businessBen Wann
In this comprehensive presentation, we will explore strategies and practical tips for enhancing profitability in small businesses. Tailored to meet the unique challenges faced by small enterprises, this session covers various aspects that directly impact the bottom line. Attendees will learn how to optimize operational efficiency, manage expenses, and increase revenue through innovative marketing and customer engagement techniques.
2. Example- Real GDP (2000 Prices) Seasonally Adjusted
(1) Plot Time Series - Non-Stationary
(i.e. time varying mean and correlogram non-zero)
GDP
Y
100
75
50
1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 Time
1.00
r ACF-Y
0.75
0.50
0.25
0 5 10
k
2
4. Unit Root Testing
(1) Plot First Difference of Time Series - Stationary
(i.e. constant mean and correlogram zero)
3
DY
2
1
0
-1
1955 1960 1965 1970 1975 1980 1985 1990 1995 2000
Time
1.0
r ACF-DY
0.5
0.0
-0.5
0 5 10 k
4
5. Informal Procedures to identify non-stationary processes
(2) Diagnostic test - Correlogram
Correlation between 1980 and 1980 + k.
For stationary process correlogram dies out rapidly.
Series has no memory. 1980 is not related to 1985.
0.50
whitenoise
0.25
0.00
-0.25
0 50 100 150 200 250 300 350 400 450 500
1.0
ACF-whitenoise
0.5
0.0
-0.5
0 5 10
5
7. What is a Spurious Regression?
A Spurious or Nonsensical relationship may
result when one Non-stationary time series is
regressed against one or more Non-stationary
time series
The best way to guard against Spurious
Regressions is to check for “Cointegration” of
the variables used in time series modeling
8. Symptoms of Likely Presence of Spurious
Regression
• If the R2 of the regression is greater than the
Durbin-Watson Statistic
• If the residual series of the regression has a Unit
Root
9.
10. What is a “Unit Root”?
If a Non-Stationary Time Series Yt has
to be “differenced” d times to make it
stationary, then Yt is said to contain
d “Unit Roots”. It is customary to
denote Yt ~ I(d) which reads “Yt is
integrated of order d”
11. Unit Root Testing: Formal Tests to
Establish Stationarity of Time Series
• Dickey-Fuller (DF) Test
• Augmented Dickey-Fuller (ADF) Test
• Phillips-Perron (PP) Unit Root Test
• Dickey-Pantula Unit Root Test
• GLS Transformed Dickey-Fuller Test
• ERS Point Optimal Test
• KPSS Unit Root Test
• Ng and Perron Test