In this paper, we propose a method for the real time evaluation of collaborative activities. The method aims to classify collaborative activities using a memory-based learning model and to evaluate them using a reference set of pre-evaluated activities. The proposed approach uses time series to represent activities and classifies them regarding their similarity. In order to evaluate the results, the method is used as an automatic rater of collaboration quality and the ratings are compared to ratings of human experts.
Excerpt of Market Intelligence Report Robot Vision 2012AMC Hofmann
For the first time ever a comprehensive Market Intelligence Report on Robot
Vision is made available for you.
Robot Vision, the optical technology to precisely determine a part´s position
and thus guide robots and other equipment, is the key to successful
automation in almost all industries and applications, industrial and nonindustrial.
The MIR “Robot Vision 2011” provides an in-depth insight into industries and
markets where Robot Vision and optical positioning is in use already or will be
used in the future.
Still, budgeting and planning processes are among the most hair-pulling exercises marketing teams go through each year. That’s why National Instruments turned to SiriusDecisions’ Campaign framework to bring sanity back to this annual activity.
For this 400-member global marketing team, selecting an industry accepted framework, leveraging technology, and doubling down on collaboration led to huge strides in their planning and budgeting process.
To watch this webinar on demand visit: http://resources.allocadia.com/revamping-marketing-planning-national-instruments-webinar.html
Innovate in new and exciting optical sensing applications in industrial marke...Design World
This webinar gives an overview of many new industrial applications enabled by award-winning DLP ® technology across industrial and factory automation applications. DLP technology is a high-value TI content in a given system and has strong pull-through impact for rest of the electronics – analog and embedded processors.
DLP fundamentally is an advanced MEMS devices providing spatial light modulation and enables many new exciting applications. 3D scanning, 3D machine vision, robotic vision, and other optical sensors are some of the popular use cases in industrial and factory automation. The structured light technique for 3D sensing uses highly differentiated DLP technology that allows projection of custom and adaptable patterns onto the target object to capture physical measurements, analyze location, or inspect a surface. DLP based spectroscopy is an innovative solution for characterizing and recognizing different materials used in several industries such as Food, Agriculture, Plastics, Petrchemicals, Pharmaceuticals and Medical applications.
This webinar also covers comprehensive TIDesigns that include complete hardware and software enable customers use complete TI technology – DLP chipsets complemented by extensive analog (power, led drivers, signal chain and others) and embedded processors.
Watch this webinar to learn:
·How to sell TI solutions in Industrial and factory automation
· Machine vision solutions used in industrial automation and robotic vision
·DLP based spectroscopy Food, Agriculture, Plastics, Petrochemicals, Pharmaceuticals and Medical applications
Excerpt of Market Intelligence Report Robot Vision 2012AMC Hofmann
For the first time ever a comprehensive Market Intelligence Report on Robot
Vision is made available for you.
Robot Vision, the optical technology to precisely determine a part´s position
and thus guide robots and other equipment, is the key to successful
automation in almost all industries and applications, industrial and nonindustrial.
The MIR “Robot Vision 2011” provides an in-depth insight into industries and
markets where Robot Vision and optical positioning is in use already or will be
used in the future.
Still, budgeting and planning processes are among the most hair-pulling exercises marketing teams go through each year. That’s why National Instruments turned to SiriusDecisions’ Campaign framework to bring sanity back to this annual activity.
For this 400-member global marketing team, selecting an industry accepted framework, leveraging technology, and doubling down on collaboration led to huge strides in their planning and budgeting process.
To watch this webinar on demand visit: http://resources.allocadia.com/revamping-marketing-planning-national-instruments-webinar.html
Innovate in new and exciting optical sensing applications in industrial marke...Design World
This webinar gives an overview of many new industrial applications enabled by award-winning DLP ® technology across industrial and factory automation applications. DLP technology is a high-value TI content in a given system and has strong pull-through impact for rest of the electronics – analog and embedded processors.
DLP fundamentally is an advanced MEMS devices providing spatial light modulation and enables many new exciting applications. 3D scanning, 3D machine vision, robotic vision, and other optical sensors are some of the popular use cases in industrial and factory automation. The structured light technique for 3D sensing uses highly differentiated DLP technology that allows projection of custom and adaptable patterns onto the target object to capture physical measurements, analyze location, or inspect a surface. DLP based spectroscopy is an innovative solution for characterizing and recognizing different materials used in several industries such as Food, Agriculture, Plastics, Petrchemicals, Pharmaceuticals and Medical applications.
This webinar also covers comprehensive TIDesigns that include complete hardware and software enable customers use complete TI technology – DLP chipsets complemented by extensive analog (power, led drivers, signal chain and others) and embedded processors.
Watch this webinar to learn:
·How to sell TI solutions in Industrial and factory automation
· Machine vision solutions used in industrial automation and robotic vision
·DLP based spectroscopy Food, Agriculture, Plastics, Petrochemicals, Pharmaceuticals and Medical applications
The presentation slides for workshop 4, “Structuring online collaboration though 3 Ts : task time & teams” in 2nd STELLARnet Alpine Rendez-Vous in the French Alps 27th to 31st March 2011
Krauss Fussel - Communication and Shared Mental Models.ppt.pptMacielVicente
Communication and shared models influence performance mainly through coordination
Interesting results were the interactions predicting coordination:
Shared models and communication substitute. Using both may hurt performance since too much effort is going into communication.
Shared models about the internals of the team and within-group communication are important early in the team’s history
We’d expect team functioning will become routinized with time
Models about and communication with the external world will probably become more important after routinization
Shared models have unexplained, direct negative association with declines in stock price
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In this webinar we will explore situations in which you as a test manager can make a difference. For example:
How do we e.g. deal with compliance, integration and final acceptance in a contractor’s context?
How does a test manager coordinate the work over teams and ensures the quality of the testing itself?
Thanks Joel Montvelisky, PractiTest Chief Solution Architect, for hosting my webinar.
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Through training in best practices and implementation of operational improvements, company employees will be better equipped to define customer value, visualize the current state, and identify and eliminate waste from business and/or manufacturing processes. Employees will be trained to a standard as defined by SME Lean Certification, and successful implementation within the business will be assessed relative to APQC Open Standards Benchmarking Measures. Outcomes will include both transferable skills for employees and improved financial performance for the company.
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Developing a system function future state for online management of assessmentBlackboardEMEA
The Assessment Journey Programme at Sheffield Hallam University has been formed to investigate, define and deliver the changes needed to provide a seamless and improved assessment experience for students and staff, and improve the operational effectiveness of assessment and feedback delivery.
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this step with respect to correctness for STEM-related courses. Then, we discuss our early
findings, how they can be used to enhance student modeling and to provide meaningful and
timely feedback to students.
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Communication and shared models influence performance mainly through coordination
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Shared models about the internals of the team and within-group communication are important early in the team’s history
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---
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It's all about time: towards the real time evaluation of collaborative activities
1. It's all about time:
towards the real time evaluation of
collaborative activities
Irene-Angelica Chounta, Nikolaos Avouris
{houren, avouris}@upatras.gr
HCI Group, University of Patras
2. Real time evaluation
Why...
●
To support teachers
orchestrate classrooms
(monitoring)
●
To support awareness
and provide feedback
to teams (mirroring)
How...
●
Multiple views of
common
workspaces/dialogues
●
Metrics of interaction,
statistics of participation
& graphs
●
Insight of work progress
via comparison
3. Objective
●
To evaluate the quality of collaboration using
time series classification
– User interaction represented as time series
– Evaluation through classification
– Activities are classified with respect to time series
similarity
●
To study the effectiveness of the method with
respect to the duration of the activity
4. Related work
●
Time series classification was used for the
post-evaluation of collaboration quality
(Chounta, Avouris 2012)
●
Activity metrics that correlate with
collaboration quality used for time series
construction of activity
●
No need for hand-coding or specialized data
manipulation
5. Collaborative setting
●
Dyads of students – 210
sessions
●
Duration of the activity:
90 minutes
●
Task: joint construction
of algorithmic
flowcharts over a
common workspace
●
Synchronous
communication over a
chat tool
6. Real-time evaluation method
●
A memory based learning model (TSCMoCA)
was used as an automatic rater of
collaboration quality:
7. Real-time evaluation method
●
The model TSCMoCA is called on demand by
the teacher
●
An evaluative value for the quality of
collaboration CQA is returned
8. Quality of collaboration
●
The quality of collaboration is defined on six
dimensions:
●
Collaboration flow
●
Sustaining mutual understanding
●
Knowledge exchange
●
Argumentation
●
Structuring the problem solving process
●
Cooperative orientation
●
The collaborative activities were evaluated by
human experts (Kahrimanis, Chounta, et.al
2009)
●
The evaluative value of collaboration quality
ranged between [-2, +2]
Communication
Joint information processing
Coordination
Interpersonal Relationship
9. Method of the study
●
Real time evaluation of collaboration quality
on 3 time instances:
– 25 minutes ( ≈1/4 of total duration)
– 40 minutes ( ≈1/2 of total duration)
– Total Duration (≈90 minutes)
●
Real time evaluation on six collaborative
dimensions, after the first half of the activity
●
The results of the automatic rater are
compared with the ratings of human experts
10. Results (1)
25 minutes 40 minutes Total duration
Correlation
(p<0.05)
0.27 0.51 0.59
Mean
Absolute Error
0.99 0.94 0.91
●
In all cases, the ratings of the model correlate
significantly with the ratings of human
experts
●
Weak correlations for the case of 25 minutes
●
Big improvement for the case of 40 minutes
●
Similar results for the evaluation on total
duration
11. Results (2)
Collaborative Dimensions Correlation MAE
Collaboration Flow 0.53 0.92
Sustaining mutual understanding 0.42 1.02
Knowledge exchange 0.5 1.17
Argumentation 0.44 1.25
Structuring the Problem Solving Process 0.46 1.17
Cooperative orientation 0.47 1.07
●
In all cases, the ratings of the model correlate
significantly with the ratings of human experts
●
The method performs effectively for the dimensions that
reflect communication on a low level
●
Low correlations/high error for complicated constructs
or dimensions that reflect collaboration on the long run
12. Results (2)
Collaborative Dimensions Correlation MAE
Collaboration Flow 0.53 0.92
Sustaining mutual understanding 0.42 1.02
Knowledge exchange 0.5 1.17
Argumentation 0.44 1.25
Structuring the Problem Solving Process 0.46 1.17
Cooperative orientation 0.47 1.07
●
In all cases, the ratings of the model correlate
significantly with the ratings of human experts
●
The method performs effectively for the dimensions that
reflect communication on a low level
●
Low correlations/high error for complicated constructs
or dimensions that reflect collaboration on the long run
13. Results (2)
Collaborative Dimensions Correlation MAE
Collaboration Flow 0.53 0.92
Sustaining mutual understanding 0.42 1.02
Knowledge exchange 0.5 1.17
Argumentation 0.44 1.25
Structuring the Problem Solving Process 0.46 1.17
Cooperative orientation 0.47 1.07
●
In all cases, the ratings of the model correlate
significantly with the ratings of human experts
●
The method performs effectively for the dimensions that
reflect communication on a low level
●
Low correlations/high error for complicated constructs
or dimensions that reflect collaboration on the long run
14. Conclusions
●
Real-time evaluation of collaboration by
classifying activities with respect to their
time-series similarity
●
Adequate performance when the evaluation is
carried out on about half of the duration
●
The method can be used to evaluate low-level
collaborative aspects unlike more advanced
constructs
15. Discussion and future work
●
The proposed method was studied for a
specific collaborative setting
(dyads/synchronous
communication/collaborative diagram
building)
●
Generalization of the findings for a wider
range of collaborative activities
●
Application of the method in a real-classroom
for teacher support
17. Time Series Construction
Metric of Activity
#messages or #workspace actions
rate of #messages or #workspace actions
#role alternation
Rate of #role alternation
17
18. Memory based learning model TSCMoCA
Time series of Collaborative Activity x
Training set
DTW similarity comparison of time series
Similarity Matrix
Classification of Collaborative Activity x with
respect to KNN algorithm