A summary of ongoing research we have been working on at the University of Washington. I gave this in August 2011 at Georgia Tech. My take on how signal processing shapes the projects of UbiComp, turning a novel idea into a robust reality.
A summary of ongoing research we have been working on at the University of Washington. I gave this in August 2011 at Georgia Tech. My take on how signal processing shapes the projects of UbiComp, turning a novel idea into a robust reality.
Osmotic stress and water isotope effects in kinesin-1 gliding motility assaysSteve Koch
The osmotic pressure and kinetic properties of water play important roles in biomolecular interactions. As pointed out by Parsegian, Rand, and Rau, these crucial roles are often overlooked1. In some fields, osmotic stress and isotope effects have been exploited for probing the role water plays in binding interactions of biomolecules. To our knowledge, there have been no studies of osmotic stress and water isotope effects for kinesin, and only a handful for myosin. We’re currently using the gliding motility assay to see whether we can extract new information about kinesin-1 / microtubule interactions by changing osmotic stress and water isotopes. We will describe our open-source, automated analysis platform for extracting microtubule gliding speeds from image series. We will also show our preliminary analyses of the changes seen in gliding assays when done in heavy water (either heavy-hydrogen or heavy-oxygen) or osmolytes (betaine). We will discuss whether osmotic stress and isotopes, particularly heavy-oxygen water, might be an important tool for probing effects of water on binding interactions between kinesin and microtubules. We will also discuss potential applications of deuterium water for stabilizing microtubules and kinesin for lab or device applications.
[1] Parsegian, V. A., Rand, R. P., & Rau, D. C. (1995). Macromolecules and water: probing with osmotic stress. Methods in Enzymology, 259.
This work was supported by the DTRA CB Basic Research Program under Grant No. HDTRA1-09-1-008 in collaboration with Dr. Susan Atlas lab (UNM).
Smart and automated control of water level, temperature and purification (1)Upamanyu Ray
Water is the most important of Nature’s gift to mankind, especially now with endangerment of freshwater. Without water, there is no life. So, water management should reduce its wastage. As a first step, this controller will automatically switch ON and OFF the domestic water pump system depending on the water tank and underground sump levels (to prevent dry run). Along with that, the system purifies and heats the water (to a soothing lukewarm). In this paperwork, we made an effort to design a costeffective and complete system using Arduino, Ultrasonic transducers, Zeolite Solution, Temperature and Humidity transducers, for water level indication, temperature control and water purification. The Arduino controls the storage level of water in a tank, its heating and the amount of zeolite mixed through SPST relays, without any wastage of water or power.
Keywords: Water, Management, Arduino, Ultrasonic, Relay, Temperature, Zeolite, Purification
Root Cause Analysis of Water Wastage in Hot - Cold Water DispenserIJERA Editor
Hot - Cold Water Dispenser is a high end kitchen product mounted on sink of kitchen to meet the requirement of instant hot and cold water as desired. It provides cold water at ambient temperature and hot water at near boiling temperature of about 97ºC to meet the instant water need. It was reported from few users, small amount of unnecessary water get dispensed from the Hot - Cold Water Dispenser during the idle conditions. This is undesirable and affecting on the overall performance of product. This paper briefs the available Root Cause Analysis and process to select the suitable method to find out the root cause of problem. From the available methods, Fault Tree Analysis was found to be most suitable method. The paper describes this method in length. Fault Tree Analysis is used as the scientific approach to find the root cause of problem of water dripping in Hot - Cold Water Dispenser at idle condition. It makes use of a graphical representation of the major faults associated with the product, the causes for the faults, and potential countermeasures. It is found that the FTA tool helps to identify areas of concern for new product design as well as for improvement of existing products.
Desalination is a process of converting sea water into fresh water which can be used by people for
their daily uses. Man has always looked for oceans to enjoy the benefit of water. Some of the early discoveries
of it is by Aristotle and others. The people of that time came up with distillation and filtration using soil deposits
to obtain drinking water from the sea. After that many methods came of desalination like reverse osmosis, etc.
and were used and thermal energy method was found cheapest and hence we came to know that we can use this
processing a portable desalination plant. The potential of thermal energy is huge all around the world and it
has been used in various processes all around. It is used for desalination process which will cure the problem of
scarcity of water in the world and mostly in the water drought regions in India. This project is focused on
making fresh water from sea water in the cheapest price available and in very small setup.
Measurement push and pull forces on automatic liquid dispensers IJECEIAES
Since the COVID-19 pandemic, automated liquid dispensers have been increasingly developed to assist transmission prevention. However, data availability of automatic liquid dispenser mechanism's technical characteristics is not yet widely available. This causes frequent over or under design in its development. Therefore, we specifically measure push and pull forces engineering characteristics generated by the automatic liquid dispenser mechanism. A wire mechanism-based automatic liquid dispenser apparatus was used to experiment. A load-cell sensor was used to detect the force that occurs from a servo motor controlled by a microcontroller. The force data (push and pull) will be sent directly to the database server cloud with a recording frequency of every second. Three types of fluid treatment levels are used i.e. water, liquid soap, and hand sanitizer gel. Three types of fluid volume treatment levels used were 50 ml, 150 ml, and 250 ml. Each treatment level combination is carried out at the servo motors rotation steps 180°, 150°, 120°, 90°, 60°, and 30°. The results show that no significant differences were found in maximal forces required to release the water, liquid soap, and hand-sanitizer gel. It is also known that the volume of the fluid has a very significant effect on the amount of push and pull forces generated.
2015-2016 Mechanical/Civil Undergraduate Senior Design
Water Treatment by Hydrodynamic Cavitation and Ultraviolet Radiation
NEED:
1. ADD DETAIL TO DISCUSSION
2. ADD TABLE FOR BUDGET SECTION
3. NAMES ON PAGES
4. Environmental Section
5. Add the solid works model
6. Cover page
7. Add decision matrices
Submitted by
Christopher Bitikofer
Sarah Ridha
Brandyn Krieger
Terran Engle
Project Mentor
Chikashi Sato, Ph.D
Draft 2 Submitted: 11/6/2015
Table of Contents
Introduction 2
Discussion 3
Detailed Engineering Specifications: 4
System Piping and Instrumentation Diagram (P&ID) 5
Management 7
Budget 8
Appendices 9
Capability Statements 9
Gantt Chart 10
References 11
Introduction
Access to clean drinking water in underdeveloped areas of the world is a growing problem due to global increases in both population and pollution. Current methods of water treatment are impractical to apply in many parts of the world, as these technologies are expensive, require large facilities staffed by a litany of professionals, and the production/disposal of treatment chemicals that often have negative environmental impacts. The need to develop a method of water treatment that is less expensive, operates without the use of chemical treatments, and has relatively low electrical power usage is of profound importance. One of the most viable and promising optionsoptions is to make use both cavitation and ultraviolet light (UV). The purpose of this project is to develop a system for researching the combined effects of these two forms of water purification.
Cavitation occurs when the static pressure of water drops below vapor pressure. Small microbubbles form and slowly collapse in an energetic manner. As cavitation bubbles collapse, temperatures within the bubble can reach upwards of 5000 degrees Kelvin. Due to pyrolytic decomposition that takes place within the collapsing bubbles, the OH radicals and shock waves arecan be generated at the gas–liquid interface (A. Agarwal et al, 2011). These radicals degrade contaminants suspended within the water that would otherwise resist ultraviolet degradation. This makes cavitation a promising method of water treatment.
Ultra violet light is capable of killing bacteria and living contaminants in water. Short wavelength UV light, in the range of 10 nm to 400 nm, kills cells by interacting with their structures and disrupting DNA (NIOSH, 2008). UV light is capable of killing up to 99.99% of bacteria in clear water. This system of water purification is both cost effective and nontoxicchemical free but it cannot break down particle contaminants that bacteria tend to live in. However in combination with a particle filtration system, or in our case a cavitation system, UV reactors are simple to maintain, cost effective and chemical free.
The concise purpose of this team’s senior design project will be to develop a fluid flow test apparatus to demonstrate the degree of effectiveness of the combination of UV radi.
Report Of Evaporation Measuring Device.
Pan Evaporation or Pan Evaporimeter.
It consist of the seminar report for measurement of evaporation with use of pan of standard size.
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in...ssuserc18183
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in recycled culture water under zero-exchange conditions using settling tanks, foam fractionators and dissolved oxygen monitoring systems as management tools
Osmotic stress and water isotope effects in kinesin-1 gliding motility assaysSteve Koch
The osmotic pressure and kinetic properties of water play important roles in biomolecular interactions. As pointed out by Parsegian, Rand, and Rau, these crucial roles are often overlooked1. In some fields, osmotic stress and isotope effects have been exploited for probing the role water plays in binding interactions of biomolecules. To our knowledge, there have been no studies of osmotic stress and water isotope effects for kinesin, and only a handful for myosin. We’re currently using the gliding motility assay to see whether we can extract new information about kinesin-1 / microtubule interactions by changing osmotic stress and water isotopes. We will describe our open-source, automated analysis platform for extracting microtubule gliding speeds from image series. We will also show our preliminary analyses of the changes seen in gliding assays when done in heavy water (either heavy-hydrogen or heavy-oxygen) or osmolytes (betaine). We will discuss whether osmotic stress and isotopes, particularly heavy-oxygen water, might be an important tool for probing effects of water on binding interactions between kinesin and microtubules. We will also discuss potential applications of deuterium water for stabilizing microtubules and kinesin for lab or device applications.
[1] Parsegian, V. A., Rand, R. P., & Rau, D. C. (1995). Macromolecules and water: probing with osmotic stress. Methods in Enzymology, 259.
This work was supported by the DTRA CB Basic Research Program under Grant No. HDTRA1-09-1-008 in collaboration with Dr. Susan Atlas lab (UNM).
Smart and automated control of water level, temperature and purification (1)Upamanyu Ray
Water is the most important of Nature’s gift to mankind, especially now with endangerment of freshwater. Without water, there is no life. So, water management should reduce its wastage. As a first step, this controller will automatically switch ON and OFF the domestic water pump system depending on the water tank and underground sump levels (to prevent dry run). Along with that, the system purifies and heats the water (to a soothing lukewarm). In this paperwork, we made an effort to design a costeffective and complete system using Arduino, Ultrasonic transducers, Zeolite Solution, Temperature and Humidity transducers, for water level indication, temperature control and water purification. The Arduino controls the storage level of water in a tank, its heating and the amount of zeolite mixed through SPST relays, without any wastage of water or power.
Keywords: Water, Management, Arduino, Ultrasonic, Relay, Temperature, Zeolite, Purification
Root Cause Analysis of Water Wastage in Hot - Cold Water DispenserIJERA Editor
Hot - Cold Water Dispenser is a high end kitchen product mounted on sink of kitchen to meet the requirement of instant hot and cold water as desired. It provides cold water at ambient temperature and hot water at near boiling temperature of about 97ºC to meet the instant water need. It was reported from few users, small amount of unnecessary water get dispensed from the Hot - Cold Water Dispenser during the idle conditions. This is undesirable and affecting on the overall performance of product. This paper briefs the available Root Cause Analysis and process to select the suitable method to find out the root cause of problem. From the available methods, Fault Tree Analysis was found to be most suitable method. The paper describes this method in length. Fault Tree Analysis is used as the scientific approach to find the root cause of problem of water dripping in Hot - Cold Water Dispenser at idle condition. It makes use of a graphical representation of the major faults associated with the product, the causes for the faults, and potential countermeasures. It is found that the FTA tool helps to identify areas of concern for new product design as well as for improvement of existing products.
Desalination is a process of converting sea water into fresh water which can be used by people for
their daily uses. Man has always looked for oceans to enjoy the benefit of water. Some of the early discoveries
of it is by Aristotle and others. The people of that time came up with distillation and filtration using soil deposits
to obtain drinking water from the sea. After that many methods came of desalination like reverse osmosis, etc.
and were used and thermal energy method was found cheapest and hence we came to know that we can use this
processing a portable desalination plant. The potential of thermal energy is huge all around the world and it
has been used in various processes all around. It is used for desalination process which will cure the problem of
scarcity of water in the world and mostly in the water drought regions in India. This project is focused on
making fresh water from sea water in the cheapest price available and in very small setup.
Measurement push and pull forces on automatic liquid dispensers IJECEIAES
Since the COVID-19 pandemic, automated liquid dispensers have been increasingly developed to assist transmission prevention. However, data availability of automatic liquid dispenser mechanism's technical characteristics is not yet widely available. This causes frequent over or under design in its development. Therefore, we specifically measure push and pull forces engineering characteristics generated by the automatic liquid dispenser mechanism. A wire mechanism-based automatic liquid dispenser apparatus was used to experiment. A load-cell sensor was used to detect the force that occurs from a servo motor controlled by a microcontroller. The force data (push and pull) will be sent directly to the database server cloud with a recording frequency of every second. Three types of fluid treatment levels are used i.e. water, liquid soap, and hand sanitizer gel. Three types of fluid volume treatment levels used were 50 ml, 150 ml, and 250 ml. Each treatment level combination is carried out at the servo motors rotation steps 180°, 150°, 120°, 90°, 60°, and 30°. The results show that no significant differences were found in maximal forces required to release the water, liquid soap, and hand-sanitizer gel. It is also known that the volume of the fluid has a very significant effect on the amount of push and pull forces generated.
2015-2016 Mechanical/Civil Undergraduate Senior Design
Water Treatment by Hydrodynamic Cavitation and Ultraviolet Radiation
NEED:
1. ADD DETAIL TO DISCUSSION
2. ADD TABLE FOR BUDGET SECTION
3. NAMES ON PAGES
4. Environmental Section
5. Add the solid works model
6. Cover page
7. Add decision matrices
Submitted by
Christopher Bitikofer
Sarah Ridha
Brandyn Krieger
Terran Engle
Project Mentor
Chikashi Sato, Ph.D
Draft 2 Submitted: 11/6/2015
Table of Contents
Introduction 2
Discussion 3
Detailed Engineering Specifications: 4
System Piping and Instrumentation Diagram (P&ID) 5
Management 7
Budget 8
Appendices 9
Capability Statements 9
Gantt Chart 10
References 11
Introduction
Access to clean drinking water in underdeveloped areas of the world is a growing problem due to global increases in both population and pollution. Current methods of water treatment are impractical to apply in many parts of the world, as these technologies are expensive, require large facilities staffed by a litany of professionals, and the production/disposal of treatment chemicals that often have negative environmental impacts. The need to develop a method of water treatment that is less expensive, operates without the use of chemical treatments, and has relatively low electrical power usage is of profound importance. One of the most viable and promising optionsoptions is to make use both cavitation and ultraviolet light (UV). The purpose of this project is to develop a system for researching the combined effects of these two forms of water purification.
Cavitation occurs when the static pressure of water drops below vapor pressure. Small microbubbles form and slowly collapse in an energetic manner. As cavitation bubbles collapse, temperatures within the bubble can reach upwards of 5000 degrees Kelvin. Due to pyrolytic decomposition that takes place within the collapsing bubbles, the OH radicals and shock waves arecan be generated at the gas–liquid interface (A. Agarwal et al, 2011). These radicals degrade contaminants suspended within the water that would otherwise resist ultraviolet degradation. This makes cavitation a promising method of water treatment.
Ultra violet light is capable of killing bacteria and living contaminants in water. Short wavelength UV light, in the range of 10 nm to 400 nm, kills cells by interacting with their structures and disrupting DNA (NIOSH, 2008). UV light is capable of killing up to 99.99% of bacteria in clear water. This system of water purification is both cost effective and nontoxicchemical free but it cannot break down particle contaminants that bacteria tend to live in. However in combination with a particle filtration system, or in our case a cavitation system, UV reactors are simple to maintain, cost effective and chemical free.
The concise purpose of this team’s senior design project will be to develop a fluid flow test apparatus to demonstrate the degree of effectiveness of the combination of UV radi.
Report Of Evaporation Measuring Device.
Pan Evaporation or Pan Evaporimeter.
It consist of the seminar report for measurement of evaporation with use of pan of standard size.
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in...ssuserc18183
High-density production of the Pacific White Shrimp, Litopenaeus vannamei, in recycled culture water under zero-exchange conditions using settling tanks, foam fractionators and dissolved oxygen monitoring systems as management tools
Phone As A Sensor Technology: mHealth and Chronic Disease Eric Larson
The mHealth “revolution” has promised to deliver in-home healthcare that parallels the care we might receive in a physician’s office. However, the panacea of digital health has proven to be more problematic and messy than its vision, especially for collecting and interpreting medical quantities from the home. In this talk I will discuss several successful projects for sensing medical quantities from a mobile phone using the embedded sensors (i.e., camera, microphone, accelerometer) and how these projects can increase compliance as well as enhance doctor patient relationships. I will focus on the reliability and calibration of the sensing and the role of computer scientists and engineers in the future of mHealth.
3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
A personal brand exploration presentation summarizes an individual's unique qualities and goals, covering strengths, values, passions, and target audience. It helps individuals understand what makes them stand out, their desired image, and how they aim to achieve it.
At Techbox Square, in Singapore, we're not just creative web designers and developers, we're the driving force behind your brand identity. Contact us today.
LA HUG - Video Testimonials with Chynna Morgan - June 2024Lital Barkan
Have you ever heard that user-generated content or video testimonials can take your brand to the next level? We will explore how you can effectively use video testimonials to leverage and boost your sales, content strategy, and increase your CRM data.🤯
We will dig deeper into:
1. How to capture video testimonials that convert from your audience 🎥
2. How to leverage your testimonials to boost your sales 💲
3. How you can capture more CRM data to understand your audience better through video testimonials. 📊
Falcon stands out as a top-tier P2P Invoice Discounting platform in India, bridging esteemed blue-chip companies and eager investors. Our goal is to transform the investment landscape in India by establishing a comprehensive destination for borrowers and investors with diverse profiles and needs, all while minimizing risk. What sets Falcon apart is the elimination of intermediaries such as commercial banks and depository institutions, allowing investors to enjoy higher yields.
Implicitly or explicitly all competing businesses employ a strategy to select a mix
of marketing resources. Formulating such competitive strategies fundamentally
involves recognizing relationships between elements of the marketing mix (e.g.,
price and product quality), as well as assessing competitive and market conditions
(i.e., industry structure in the language of economics).
"𝑩𝑬𝑮𝑼𝑵 𝑾𝑰𝑻𝑯 𝑻𝑱 𝑰𝑺 𝑯𝑨𝑳𝑭 𝑫𝑶𝑵𝑬"
𝐓𝐉 𝐂𝐨𝐦𝐬 (𝐓𝐉 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬) is a professional event agency that includes experts in the event-organizing market in Vietnam, Korea, and ASEAN countries. We provide unlimited types of events from Music concerts, Fan meetings, and Culture festivals to Corporate events, Internal company events, Golf tournaments, MICE events, and Exhibitions.
𝐓𝐉 𝐂𝐨𝐦𝐬 provides unlimited package services including such as Event organizing, Event planning, Event production, Manpower, PR marketing, Design 2D/3D, VIP protocols, Interpreter agency, etc.
Sports events - Golf competitions/billiards competitions/company sports events: dynamic and challenging
⭐ 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐝 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬:
➢ 2024 BAEKHYUN [Lonsdaleite] IN HO CHI MINH
➢ SUPER JUNIOR-L.S.S. THE SHOW : Th3ee Guys in HO CHI MINH
➢FreenBecky 1st Fan Meeting in Vietnam
➢CHILDREN ART EXHIBITION 2024: BEYOND BARRIERS
➢ WOW K-Music Festival 2023
➢ Winner [CROSS] Tour in HCM
➢ Super Show 9 in HCM with Super Junior
➢ HCMC - Gyeongsangbuk-do Culture and Tourism Festival
➢ Korean Vietnam Partnership - Fair with LG
➢ Korean President visits Samsung Electronics R&D Center
➢ Vietnam Food Expo with Lotte Wellfood
"𝐄𝐯𝐞𝐫𝐲 𝐞𝐯𝐞𝐧𝐭 𝐢𝐬 𝐚 𝐬𝐭𝐨𝐫𝐲, 𝐚 𝐬𝐩𝐞𝐜𝐢𝐚𝐥 𝐣𝐨𝐮𝐫𝐧𝐞𝐲. 𝐖𝐞 𝐚𝐥𝐰𝐚𝐲𝐬 𝐛𝐞𝐥𝐢𝐞𝐯𝐞 𝐭𝐡𝐚𝐭 𝐬𝐡𝐨𝐫𝐭𝐥𝐲 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐚 𝐩𝐚𝐫𝐭 𝐨𝐟 𝐨𝐮𝐫 𝐬𝐭𝐨𝐫𝐢𝐞𝐬."
Personal Brand Statement:
As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
Business Valuation Principles for EntrepreneursBen Wann
This insightful presentation is designed to equip entrepreneurs with the essential knowledge and tools needed to accurately value their businesses. Understanding business valuation is crucial for making informed decisions, whether you're seeking investment, planning to sell, or simply want to gauge your company's worth.
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.
What is Enterprise Excellence?
Enterprise Excellence is a holistic approach that's aimed at achieving world-class performance across all aspects of the organization.
What might I learn?
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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It is crucial for the taxpayers to understand about the TDS Return Filing Due Date, so that they can fulfill your TDS obligations efficiently. Taxpayers can avoid penalties by sticking to the deadlines and by accurate filing of TDS. Timely filing of TDS will make sure about the availability of tax credits. You can also seek the professional guidance of experts like Legal Pillers for timely filing of the TDS Return.
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!
1. disaggregated hot and cold water sensing with minimal calibration
semi-supervised training for infrastructure mediated sensing
Eric C. Larson
UbiComp Lab
electrical
engineering
computer
science and engineering
University of Washington
2. how can indirect sensing and machine
learning be used to reduce our
environmental footprint?
6. we are using water faster
than it is being replenished
Pacific Institute for Studies in Development, Environment, and Security, 2011 6
7. we are using water faster
than it is being replenished
Pacific Institute for Studies in Development, Environment, and Security, 2011 6
image: weiku.com
27. meters
flow rate fixture flow
inline water
water
pressure
pressure
sensor
machine
learning
estimated
28. • central sensing point
• easy to install
• low cost
• can observe every fixture
HydroSense
25
29. • central sensing point
• easy to install
• low cost
• can observe every fixture
HydroSense
25
40#
50#
60#
70#
80#
Cold Line Pressure
(Hose Spigot)
0 94.5
time (s)
psi
open close
33. feasibility study
• 10 homes
• staged calibration
• ~98% accuracy
Froehlich, J., Larson, E., Campbell, T., Haggerty, C., Fogarty, J., and Patel, S.N. HydroSense: infrastructure-mediated single-point sensing of whole-home water
activity. Proceedings of the 11th ACM international conference on Ubiquitous computing, (2009), 235–244.
Larson, E., Froehlich, J., Campbell, T., et al. Disaggregated water sensing from a single, pressure- based sensor: An extended analysis of HydroSense using staged
experiments. Pervasive and Mobile Computing, (2010).
28
42. totals
days
33
33
30
27
33
156
events
2374
3075
4754
2499
2578
14,960
events/day
71.9
93.2
158.5
92.6
78.1
95.9
compound
22.2%
21.8%
16.6%
32%
21.3%
21.9%
data collection
Larson, E., Froehlich, J., Saba, E., et al. A Longitudinal Study of Pressure Sensing to Infer Real- World Water Usage
Events in the Home. Pervasive Computing, Springer (2011), 50–69.
most comprehensive labeled dataset
of hot and cold water ever collected
37
58. accuracy
trusted
not trusted
how accurate should the system be?
how can we be sure the user trusts the system?
highly critical
noticeable
Lim, B. and Dey, A. Investigating intelligibility for uncertain context-aware applications. Proceedings of the 13th international
conference on ubiquitous computing, (2011), 415.
~80%
~99%
55
63. 0 0.5 1 1.5 2 2.5 3 3.5 4
46
48
50
52
54
56
58
60
hours
psi finding the dishwasher
0.5 1 1.5 2 2.5 3 3.5 4
hours
template
X
n
tn
X
n
pn
59
dishwasher
64. 0 0.5 1 1.5 2 2.5 3 3.5 4
46
48
50
52
54
56
58
60
hours
psi finding the dishwasher
0 0.5 1 1.5 2 2.5 3 3.5 4
hours
template
pressure difference
time difference
X
n
tn
X
n
pn
59
dishwasher
65. 0 0.5 1 1.5 2 2.5 3 3.5 4
46
48
50
52
54
56
58
60
hours
psi finding the dishwasher
0 0.5 1 1.5 2 2.5 3 3.5
46
48
50
52
54
56
58
60
hours
psi
template
pressure difference
time difference
X
n
tn
X
n
pn
59
dishwasher
66. 0 0.5 1 1.5 2 2.5 3 3.5 4
46
48
50
52
54
56
58
60
hours
psi finding the dishwasher
pressure difference
time difference
X
n
tn
X
n
pn
59
dishwasher
67. 0 0.5 1 1.5 2 2.5 3 3.5 4
46
48
50
52
54
56
58
60
hours
psi finding the dishwasher
pressure difference
time difference
X
n
tn
X
n
pn
X
n
tcyclelaundry machine
59
laundry
dishwasher
70. leveraging unlabeled data
labeled unlabeled
classifier classifier
feature set 2
high confidence high confidence
agree?
feature set 1
self labeled
multi-view classification
62
71. training 48%
49%
labeled unlabeled
multi-view classification
self labeled
TB
SVM+CRF
55%
53%
feature split: hot sensor vs. cold sensor
88%
90%TB
SVM+CRF
99%
dense features
sparse features
63
training
training
training
72. 0 5 10 15 20
46
48
50
52
54
56
58
60
time of day (hours)
psi
kitchen sink, hot master bathroom toilet
multi-view classification
64
85. semi-supervised learning
leveraging the homeowner
can we leverage multi-view models?
• select low confidence examples
• ask homeowner for label
AT&T LTEAT&T LTE 5:23 PM
did you just use water?
YesNo
75
86. semi-supervised learning
leveraging the homeowner
can we leverage multi-view models?
• select low confidence examples
• ask homeowner for label
AT&T LTEAT&T LTE 5:23 PM
did you just use water?
YesNo
75
AT&T LTEAT&T LTE 5:23 PM
Fixture Selection
Do Not Disturb
Select Notification Times
OFF
Master Toilet
Recently Used:
Half Bath Toilet
Dishwasher
Master Sink Select Temp.
Kitchen Sink Select Temp.
Master Shower Select Temp.
More
Half Bath Sink Select Temp.
87. simulating labels from homeowner
AT&T LTEAT&T LTE 5:23 PM
did you just use water?
YesNo
• ask for two labels every other day
• one morning and one evening
• only from 8AM-9PM
• randomly ask for previous event
76
AT&T LTEAT&T LTE 5:23 PM
Fixture Selection
Do Not Disturb
Select Notification Times
OFF
Master Toilet
Recently Used:
Half Bath Toilet
Dishwasher
Master Sink Select Temp.
Kitchen Sink Select Temp.
Master Shower Select Temp.
More
Half Bath Sink Select Temp.
88. 10 15 20 25 30 35 40 45
0.65
0.7
0.75
0.8
0.85
Co−Labeling in H1
Number of Labels
ValveLevelAccuracyofCoLabel−HMM
Co−Labeling
Random Labeling
co-labeling
random labeling
iteration 1
iteration 3
iteration 5
iteration 10
simulating labels from homeowner
co-labeling for H1minimaltrainingset totals
days
33
33
30
27
33
156
events
2374
3075
4754
2499
2578
14,960
events/day
71.9
93.2
158.5
92.6
78.1
95.9
compound
22.2%
21.8%
16.6%
32%
21.3%
21.9%
77
91. implications for homeowner
week one
• homeowner installs system
• 1-2 examples per fixture
• show sparse classes:
dishwasher, shower, laundry
80
92. implications for homeowner
week one
• homeowner installs system
• 1-2 examples per fixture
• show sparse classes:
dishwasher, shower, laundry
week two
• 2-4 labels, every 2 days
• fixture category: 85%
80
93. implications for homeowner
week one
• homeowner installs system
• 1-2 examples per fixture
• show sparse classes:
dishwasher, shower, laundry
week two
• 2-4 labels, every 2 days
• fixture category: 85%
week three
• 9-12 more examples
• fixture: 82%
80
94. implications for homeowner
week one
• homeowner installs system
• 1-2 examples per fixture
• show sparse classes:
dishwasher, shower, laundry
week two
• 2-4 labels, every 2 days
• fixture category: 85%
week three
• 9-12 more examples
• fixture: 82%
end of week three
• fixture: 87%
• valve: 80%
80
95. summary contributions
• comprehensive disaggregated dataset
• multi-view classification
• expert knowledge
• compressed sensing
• framework for virtual evidence in IMS
• co-labeling with multi-view
• idea: inception to industry ready
81
96. how can indirect sensing and machine
learning be used to reduce our
environmental footprint?
97. disaggregated hot and cold water sensing with minimal calibration
semi-supervised training for infrastructure mediated sensing
UbiComp Lab
electrical
engineering
computer
science and engineering
University of Washington
eclarson.com
eclarson@uw.edu
@ec_larson
Eric C. Larson
98. disaggregated hot and cold water sensing with minimal calibration
semi-supervised training for infrastructure mediated sensing
UbiComp Lab
electrical
engineering
computer
science and engineering
University of Washington
eclarson.com
eclarson@uw.edu
@ec_larson
Eric C. Larson