Undertand requirements of normality in ANSI/ASQ Z1.9 and how that affects analysis of meter test data.
Review typical meter test data distributors and how to determine if meter test data is normal
Introduction to working with non-normal data
Prepared as part of the course requirements for the subject IT for Business Intelligence at Vinod Gupta School of Management, IIT Kharagpur. This paper discusses some of the data mining techniques using examples in the software WEKA.
Undertand requirements of normality in ANSI/ASQ Z1.9 and how that affects analysis of meter test data.
Review typical meter test data distributors and how to determine if meter test data is normal
Introduction to working with non-normal data
Prepared as part of the course requirements for the subject IT for Business Intelligence at Vinod Gupta School of Management, IIT Kharagpur. This paper discusses some of the data mining techniques using examples in the software WEKA.
Quality perception of coding artifacts and packet loss in networked video com...soojin kim
author
Soo-Jin Kim, Chan-Byoung Chae, and Jong-Seok Lee
Presentation material for 2012 Globalcom conference workshop Quality of experience for multimedai communication.
For full paper,
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6477780&contentType=Conference+Publications
Matching Weights to Simultaneously Compare Three Treatment Groups: a Simulati...Kazuki Yoshida
Presentation at the Epidemiology Congress of Americas 2016.
https://epiresearch.org/2016-meeting/submitted-abstract-sessions/pharmacoepidemiology-estimation-of-treatment/
Paper: http://journals.lww.com/epidem/Abstract/publishahead/Matching_weights_to_simultaneously_compare_three.98901.aspx (email me at kazukiyoshida@mail.harvard.edu)
Simulation code: https://github.com/kaz-yos/mw
Tutorial: http://rpubs.com/kaz_yos/matching-weights
We present recent advances and statistical developments for evaluating Dynamic Treatment Regimes (DTR), which allow the treatment to be dynamically tailored according to evolving subject-level data. Identification of an optimal DTR is a key component for precision medicine and personalized health care. Specific topics covered in this talk include several recent projects with robust and flexible methods developed for the above research area. We will first introduce a dynamic statistical learning method, adaptive contrast weighted learning (ACWL), which combines doubly robust semiparametric regression estimators with flexible machine learning methods. We will further develop a tree-based reinforcement learning (T-RL) method, which builds an unsupervised decision tree that maintains the nature of batch-mode reinforcement learning. Unlike ACWL, T-RL handles the optimization problem with multiple treatment comparisons directly through a purity measure constructed with augmented inverse probability weighted estimators. T-RL is robust, efficient and easy to interpret for the identification of optimal DTRs. However, ACWL seems more robust against tree-type misspecification than T-RL when the true optimal DTR is non-tree-type. At the end of this talk, we will also present a new Stochastic-Tree Search method called ST-RL for evaluating optimal DTRs.
Quantitative Analysis for Emperical ResearchAmit Kamble
Overview for Approach Methods for quantitative analysis; which includes
1) Planning of Experiments
2) Data Generation
3) presentation of report
some numerical approach methods; data modeling; hypothesis methods
We provide an overview of some recent developments in machine learning tools for dynamic treatment regime discovery in precision medicine. The first development is a new off-policy reinforcement learning tool for continual learning in mobile health to enable patients with type 1 diabetes to exercise safely. The second development is a new inverse reinforcement learning tools which enables use of observational data to learn how clinicians balance competing priorities for treating depression and mania in patients with bipolar disorder. Both practical and technical challenges are discussed.
Please Subscribe to this Channel for more solutions and lectures
http://www.youtube.com/onlineteaching
Chapter 8: Hypothesis Testing
8.3: Testing a Claim About a Mean
Quality perception of coding artifacts and packet loss in networked video com...soojin kim
author
Soo-Jin Kim, Chan-Byoung Chae, and Jong-Seok Lee
Presentation material for 2012 Globalcom conference workshop Quality of experience for multimedai communication.
For full paper,
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6477780&contentType=Conference+Publications
Matching Weights to Simultaneously Compare Three Treatment Groups: a Simulati...Kazuki Yoshida
Presentation at the Epidemiology Congress of Americas 2016.
https://epiresearch.org/2016-meeting/submitted-abstract-sessions/pharmacoepidemiology-estimation-of-treatment/
Paper: http://journals.lww.com/epidem/Abstract/publishahead/Matching_weights_to_simultaneously_compare_three.98901.aspx (email me at kazukiyoshida@mail.harvard.edu)
Simulation code: https://github.com/kaz-yos/mw
Tutorial: http://rpubs.com/kaz_yos/matching-weights
We present recent advances and statistical developments for evaluating Dynamic Treatment Regimes (DTR), which allow the treatment to be dynamically tailored according to evolving subject-level data. Identification of an optimal DTR is a key component for precision medicine and personalized health care. Specific topics covered in this talk include several recent projects with robust and flexible methods developed for the above research area. We will first introduce a dynamic statistical learning method, adaptive contrast weighted learning (ACWL), which combines doubly robust semiparametric regression estimators with flexible machine learning methods. We will further develop a tree-based reinforcement learning (T-RL) method, which builds an unsupervised decision tree that maintains the nature of batch-mode reinforcement learning. Unlike ACWL, T-RL handles the optimization problem with multiple treatment comparisons directly through a purity measure constructed with augmented inverse probability weighted estimators. T-RL is robust, efficient and easy to interpret for the identification of optimal DTRs. However, ACWL seems more robust against tree-type misspecification than T-RL when the true optimal DTR is non-tree-type. At the end of this talk, we will also present a new Stochastic-Tree Search method called ST-RL for evaluating optimal DTRs.
Quantitative Analysis for Emperical ResearchAmit Kamble
Overview for Approach Methods for quantitative analysis; which includes
1) Planning of Experiments
2) Data Generation
3) presentation of report
some numerical approach methods; data modeling; hypothesis methods
We provide an overview of some recent developments in machine learning tools for dynamic treatment regime discovery in precision medicine. The first development is a new off-policy reinforcement learning tool for continual learning in mobile health to enable patients with type 1 diabetes to exercise safely. The second development is a new inverse reinforcement learning tools which enables use of observational data to learn how clinicians balance competing priorities for treating depression and mania in patients with bipolar disorder. Both practical and technical challenges are discussed.
Please Subscribe to this Channel for more solutions and lectures
http://www.youtube.com/onlineteaching
Chapter 8: Hypothesis Testing
8.3: Testing a Claim About a Mean
Basic Concepts of Standard Experimental Designs ( Statistics )Hasnat Israq
This gives the basic description of Design and Analysis of Experiment . This is one of the important topic in Statistics and also for Mathematics and for Researchers - Scientists . Good Luck .
Special Double Sampling Plan for truncated life tests based on the Marshall-O...ijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
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Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
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SAP heatmap example with demo
Speaker:
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State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
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Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
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GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
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Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
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See how to accelerate model training and optimize model performance with active learning
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Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
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Speakers:
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This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
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The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
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GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
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The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
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Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
29. When choosing a sample size, we must
consider the following issues:
• Objectives: What population parameters
we want to estimate/test hypothesis
• Sampling/research design is selected
• Degree of accuracy required for the
study
• Spread/variation (variability) of the
population
• Response rate, practicality: how hard is
it to collect data
• Time and money available
30. 1)
Sample size for Simple Random Sampling
To estimate mean
2 2
Z N
n =
2 2 2
Z ( N 1) E
Z2 2
n
E2
31. Sample size for Simple Random Sampling
To estimate proportion
2
Z NP (1 P )
n = 2 2
Z P (1 P ) ( N 1) E
n
2P 1 P
Z ( )
n
E 2
32. 1,628
(Pilot survey)
z 2 NP (1 P)
5%
z 2 P (1 P ) NE 2 %
n = )2
(1.645 (1,6280.2)( .8)
)( 0
(1.645 (0.2)( .8) (1,6280.052
)2 0 )( )
n =
= 156.53 157
5%
90%
33. ? z 2 P (1 P )
95% E 2
n =
2(P 1)
1
(1.96 )(
) P
2 2 P = ½=0
(0.052
)
n=
= 384.16 385
37. 2) Sample size determination for
hypothesis testing
2.1 Sample size determination for the
test of one proportion
38. Example In a particular province the
proportion of pregnant women provided with
prenatal care in the first trimester of pregnancy
is estimated to be 40% by the provincial
department of health. Health officials in
another province are interested in comparing
their success at providing prenatal care with
these figures. How many women should be
sampled to test the hypothesis that the coverage
rate in the second province is % against the
alternative that it is not %? The investigators
wish to detect a difference of % with the
power of the test equal at % and at
39. P : coverage rate
Ho: P = . Ha: P . ( . or
MINITAB can be used to assist in this
sample size determination by
selecting
Stat > Power and sample size >
proportion.
40.
41. If alternative values of p is equal to
.45, a sample size of 1022 would be
needed.
If alternative values of p is equal to
. , a sample size of would be
needed.
We choose the large sample size, thus a
sample size of 1022 is needed for the
study.
42. 2.2 Sample size determination for the
test of two proportions
Two-sided test
(Z 2pq Z p2q2 p1q1)2
n = 2
(p2 p1)2
43. Example 5 It is believed that the proportion
of patients who develop complications after
undergoing one type of surgery is % while
the proportion of patients who develop
complications after a second type of surgery
is %. How large should the sample size be
in each of the two groups of patients if an
investigator wishes to detect, with a power
of %, whether the second procedure has a
complication rate significantly higher than
the first at the % level of significance?
44. Use MINITAB, click Stat > Power
and sample size > proportion.
You would complete the dialog box.
You want to test one-sided test, click
on the options button and choose less
than
45.
46. Power and Sample Size
Test for Two Proportions
Testing proportion = proportion (versus <)
Calculating power for proportion
Alpha =
Sample Target Actual
Proportion Size Power Power
A sample size of would be needed in each
group.
47. 2.3 Sample size determination for the tes
of one mean
Two-sided test
2 2
(Z Z )
n 2
( 0 1 )2
48. Example Consider the cholesterol
study. Suppose that the null mean is
mg% /ml, the alternative mean is
mg%/ml, the standard deviation is
, and we wish to conduct a
significance test for one-sided test at
the % level with a power of %.
How large should the sample size be?
49. MINITAB> click Stat > Power and
sample size > sample Z.
You want to test one-sided test, click
on the options button and choose
greater than
50.
51. -Sample Z Test
Testing mean = null (versus > nul
Calculating power for mean = null
Alpha = . Sigma =
Sample Target Actual
Difference Size Power Power
Thus, 96 people are needed.
To achieve a power of 90%
using a 5% significance level
52. 2.4 Sample size determination for the
test of two means
Two-sided test
(Z Z )2( 1
2 2)2
2
2
n =
( 2 1)2
53. Example Consider the blood pressure study
for drug A users and non-drug A users as a
pilot study conducted to obtain parameter
estimates to plan for a larger study. We wish
to test the hypothesis : = versus : .
Determine the appropriate sample size for
the large study using a two–sided test with a
significance level of . and a power of
In the pilot study, we obtained = . ,
S = . = . ,S
54. In the pilot study, we obtained
= . ,S = . =
. ,S
n=( -
We would require a sample size of 152 people
in each group