agriculture

Statistics and data science degrees: Overhyped or the real deal?

Curated on October 9, 2018May 29, 2019 by Stefaan Verhulst

P. Richard Hahn at The Conversation: “Data science” is hot right now. The number of undergraduate degrees in statistics has tripled in the past decade, and as a statistics professor, I can tell you that it isn’t because freshmen love statistics.

Way back in 2009, economist Hal Varian of Google dubbed statistician the “next sexy job.” Since then, statistician, data scientist and actuary have topped various “best jobs” lists. Not to mention the enthusiastic press coverage of industry applications: Machine learning! Big data! AI! Deep learning!

But is it good advice? I’m going to voice an unpopular opinion for the sake of starting a conversation. Stats is indeed useful, but not in the way that the popular media – and all those online data science degree programs – seem to suggest….

While all the press tends to go to the sensationalist applications – computers that watch cat videos, anyone? – the data science boom reflects a broad increase in demand for data literacy, as a baseline requirement for modern jobs.

The “big data era” doesn’t just mean large amounts of data; it also means increased ease and ability to collect data of all types, in all walks of life. Although the big five tech companies – Google, Apple, Amazon, Facebook and Microsoft – represent about 10 percent of the U.S. market cap and dominate the public imagination, they employ only one-half of one percent of all employees.

Therefore, to be a true revolution, data science will need to infiltrate nontech industries. And it is. The U.S. has seen its impact on political campaigns. I myself have consulted in the medical devices sector. A few years back, Walmart held a data analysis competition as a recruiting tool. The need for people that can dig into the data and parse it is everywhere.

In a speech at the National Academy of Sciences in 2015, Steven “Freakonomics” Levitt related his insights about the need for data-savvy workers, based on his experience as a sought-after consultant in fields ranging from the airline industry to fast food….(More)”.

Translating science into business innovation: The case of open food and nutrition data hackathons

Curated on October 6, 2018 by Stefaan Verhulst

Paper by Christopher Tucci, Gianluigi Viscusi and Heidi Gautschi: “In this article, we explore the use of hackathons and open data in corporations’ open innovation portfolios, addressing a new way for companies to tap into the creativity and innovation of early-stage startup culture, in this case applied to the food and nutrition sector. We study the first Open Food Data Hackdays, held on 10-11 February 2017 in Lausanne and Zurich. The aim of the overall project that the Hackdays event was part of was to use open food and nutrition data as a driver for business innovation. We see hackathons as a new tool in the innovation manager’s toolkit, a kind of live crowdsourcing exercise that goes beyond traditional ideation and develops a variety of prototypes and new ideas for business innovation. Companies then have the option of working with entrepreneurs and taking some of the ideas forward….(More)”.

What Can Satellite Imagery Tell Us About Obesity in Cities?

Curated on October 1, 2018 by Stefaan Verhulst

Emily Matchar at Smithsonian: “About 40 percent of American adults are obese, defined as having a body mass index (BMI) over 30. But obesity is not evenly distributed around the country. Some cities and states have far more obese residents than others. Why? Genetics, stress, income levels and access to healthy foods are play a role. But increasingly researchers are looking at the built environment—our cities—to understand why people are fatter in some places than in others.

New research from the University of Washington attempts to take this approach one step further by using satellite data to examine cityscapes. By using the satellite images in conjunction with obesity data, they hope to uncover which urban features might influence a city’s obesity rate.

The researchers used a deep learning network to analyze about 150,000 high-resolution satellite image of four cities: Los Angeles, Memphis, San Antonio and Seattle. The cities were selected for being from states with both high obesity rates (Texas and Tennessee) and low obesity rates (California and Washington). The network extracted features of the built environment: crosswalks, parks, gyms, bus stops, fast food restaurants—anything that might be relevant to health.

“If there’s no sidewalk you’re less likely to go out walking,” says Elaine Nsoesie, a professor of global health at the University of Washington who led the research.

The team’s algorithm could then see what features were more or less common in areas with greater and lesser rates of obesity. Some findings were predictable: more parks, gyms and green spaces were correlated with lower obesity rates. Others were surprising: more pet stores equaled thinner residents (“a high density of pet stores could indicate high pet ownership, which could influence how often people go to parks and take walks around the neighborhood,” the team hypothesized).

A paper on the results was recently published in the journal JAMA Network Open….(More)”.

The rush for data risks growing the North-South divide

Curated on September 26, 2018 by Stefaan Verhulst

Laura Mann and Gianluca Lazzolino at SciDevNet: “Across the world, tech firms and software developers are embedding digital platforms into humanitarian and commercial infrastructures. There’s Jembi and Hello Doctor for the healthcare sector, for example; SASSA and Tamween for social policy; and M-farm, i-Cow, Esoko among many others for agriculture.

While such systems proliferate, it is time we asked some tough questions about who is controlling this data, and for whose benefit. There is a danger that ‘platformisation’ widens the knowledge gap between firms and scientists in poorer countries and those in more advanced economies.

Digital platforms serve three purposes. They improve interactions between service providers and users; gather transactional data about those users; and nudge them towards behaviours, activities and products considered ‘virtuous’, profitable, or valued — often because they generate more data. This data can be extremely valuable to policy-makers interested in developing interventions, to researchers exploring socio-economic trends and to businesses seeking new markets.

But the development and use of these platforms are not always benign.

Knowledge and power

Digital technologies are knowledge technologies because they record the personal information, assets, behaviour and networks of the people that use them.

Knowledge has a somewhat gentle image of a global good shared openly and evenly across the world. But in reality, it is competitive.
Simply put, knowledge shapes economic rivalry between rich and poor countries. It influences who has power over the rules of the economic game, and it does this in three key ways.

First, firms can use knowledge and technology to become more efficient and competitive in what they do. For example, a farmer can choose to buy technologically enhanced seeds, inputs such as fertilisers, and tools to process their crop.

This technology transfer is not automatic — the farmer must first invest time to learn how to use these tools. In this sense, economic competition between nations is partly about how well-equipped their people are in using technology effectively.

The second key way in which knowledge impacts global economic competition depends on looking at development as a shift from cut-throat commodity production towards activities that bring higher profits and wages.

In farming, for example, development means moving out of crop production alone into a position of having more control over agricultural inputs, and more involvement in distributing or marketing agricultural goods and services….(More)”.

Is Mass Surveillance the Future of Conservation?

Curated on September 18, 2018October 24, 2018 by Stefaan Verhulst

Mallory Picket at Slate: “The high seas are probably the most lawless place left on Earth. They’re a portal back in time to the way the world looked for most of our history: fierce and open competition for resources and contested territories. Pirating continues to be a way to make a living.

It’s not a complete free-for-all—most countries require registration of fishing vessels and enforce environmental protocols. Cooperative agreements between countries oversee fisheries in international waters. But the best data available suggests that around 20 percent of the global seafood catch is illegal. This is an environmental hazard because unregistered boats evade regulations meant to protect marine life. And it’s an economic problem for fishermen who can’t compete with boats that don’t pay for licenses or follow the (often expensive) regulations. In many developing countries, local fishermen are outfished by foreign vessels coming into their territory and stealing their stock….

But Henri Weimerskirch, a French ecologist, has a cheap, low-impact way to monitor thousands of square miles a day in real time: He’s getting birds to do it (a project first reported by Hakai). Specifically, albatross, which have a 10-foot wingspan and can fly around the world in 46 days. The birds naturally congregate around fishing boats, hoping for an easy meal, so Weimerskirch is equipping them with GPS loggers that also have radar detection to pick up the ship’s radar (and make sure it is a ship, not an island) and a transmitter to send that data to authorities in real time. If it works, this should help in two ways: It will provide some information on the extent of the unofficial fishing operation in the area, and because the logger will transmit their information in real time, the data will be used to notify French navy ships in the area to check out suspicious boats.

His team is getting ready to deploy about 80 birds in the south Indian Ocean this November.
The loggers attached around the birds’ legs are about the shape and size of a Snickers. The south Indian Ocean is a shared fishing zone, and nine countries, including France (courtesy of several small islands it claims ownership of, a vestige of colonialism), manage it together. But there are big problems with illegal fishing in the area, especially of the Patagonian toothfish (better known to consumers as Chilean seabass)….(More)”

Rohingya turn to blockchain to solve identity crisis

Curated on September 15, 2018 by Stefaan Verhulst

Skot Thayer and Alex Hern at the Guardian: “Rohingya refugees are turning to blockchain-type technology to help address one of their most existential threats: lack of officially-recognised identity.

Denied citizenship in their home country of Myanmar for decades, the Muslim minority was the target of a brutal campaign of violence by the military which culminated a year ago this week. A “clearance operation” led by Buddhist militia sent more than 700,000 Rohingya pouring over the border into Bangladesh, without passports or official ID.

The Myanmar government has since agreed to take the Rohingya back, but are refusing to grant them citizenship. Many Rohingya do not want to return and face life without a home or an identity. This growing crisis prompted Muhammad Noor and his team at the Rohingya Project to try to find a digital solution.

“Why does a centralised entity like a bank or government own my identity,” says Noor, a Rohingya community leader based in Kuala Lumpur. “Who are they to say if I am who I am?”

Using blockchain-based technology, Noor, is trialling the use of digital identity cards that aim to help Rohingya in Malaysia, Bangladesh and Saudi Arabia access services such as banking and education. The hope is that successful trials might lead to a system that can help the community across southeast Asia.

Under the scheme, a blockchain database is used to record individual digital IDs, which can then be issued to people once they have taken a test to verify that they are genuine Rohingya….

Blockchain-based initiatives, such as the Rohingya Project, could eventually allow people to build the network of relationships necessary to participate in the modern global economy and prevent second and third generation “invisible” people from slipping into poverty. It could also allow refugees to send money across borders, bypassing high transaction fees.

In Jordan’s Azraq refugee camp, the United Nations World Food Programme (WFP) is using blockchain and biometrics to help Syrian refugees to purchase groceries using a voucher system. This use of the technology allows the WFP to bypass bank fees.

But Al Rjula says privacy is still an issue. “The technology is maturing, yet implementation by startups and emerging tech companies is still lacking,” he says.

The involvement of a trendy technology such as blockchains can often be enough to secure the funding, attention and support that start-ups – whether for-profit or charitable – need to thrive. But companies such as Tykn still have to tackle plenty of the same issues as their old-fashioned database-using counterparts, from convincing governments and NGOs to use their services in the first place to working out how to make enough overhead to pay staff, while also dealing with the fickle issues of building on a cutting-edge platform.

Blockchain-based humanitarian initiatives will also need to reckon with the problem of accountability in their efforts to aid refugees and those trapped in the limbo of statelessness.

Dilek Genc, a PhD candidate at the University of Edinburgh who studies blockchain-type applications in humanitarian aid and development, saysif the aid community continues to push innovation using Silicon Valley’s creed of “fail fast and often,” and experiment on vulnerable peoples they will be fundamentally at odds with humanitarian principles and fail to address the political roots of issues facing refugees…(More)”.

Our shared reality is fraying

Curated on September 12, 2018October 9, 2018 by Stefaan Verhulst

Arie Kruglanski at The Conversation: “The concept of truth is under assault, but our troubles with truth aren’t exactly new.

What’s different is that in the past, debates about the status of truth primarily took place in intellectual cafes and academic symposia among philosophers. These days, uncertainty about what to believe is endemic – a pervasive feature of everyday life for everyday people.

“Truth isn’t truth” – Rudy Giuliani, President Donald Trump’s lawyer, famously said in August. His statement wasn’t as paradoxical as it might have appeared. It means that our beliefs, what we hold as true, are ultimately unprovable, rather than objectively verifiable.

Many philosophers would agree. Nevertheless, voluminous research in psychology, my own field of study, has shown that the idea of truth is key to humans interacting normally with the world and other people in it. Humans need to believe that there is truth in order to maintain relationships, institutions and society.

Truth’s indispensability

Beliefs about what is true are typically shared by others in one’s society: fellow members of one’s culture, one’s nation or one’s profession.

Psychological research in a forthcoming book by Tory Higgins, “Shared Reality: What Makes Us Strong and Tears Us Apart,” attests that shared beliefs help us collectively understand how the world works and provide a moral compass for living in it together.

Cue our current crisis of confidence.

Distrust of the U.S. government, which has been growing since the 1960s, has spread to nearly all other societal institutions, even those once held as beyond reproach.

From the media to the medical and scientific communities to the Catholic Church, there is a gnawing sense that none of the once hallowed information sources can be trusted.

When we can no longer make sense of the world together, a crippling insecurity ensues. The internet inundates us with a barrage of conflicting advice about nutrition, exercise, religion, politics and sex. People develop anxiety and confusion about their purpose and direction.

In the extreme, a lost sense of reality is a defining feature of psychosis, a major mental illness.

A society that has lost its shared reality is also unwell. In the past, people turned to widely respected societal institutions for information: the government, major news outlets, trusted communicators like Walter Cronkite, David Brinkley or Edward R. Murrow. Those days are gone, alas. Now, just about every source is suspect of bias and serving interests other than the truth. In consequence, people increasingly believe what they wish to believe, or what they find pleasing and reassuring….(More)”.

Pick your poison: How a crowdsourcing app helped identify and reduce food poisoning

Curated on September 10, 2018 by Stefaan Verhulst

Alex Papas at LATimes: “At some point in life, almost everyone will have experienced the debilitating effects of a foodborne illness. Whether an under-cooked chicken kebab, an E. coli infested salad or some toxic fish, a good day can quickly become a loathsome frenzy of vomiting and diarrhoea caused by poorly prepared or poorly kept food.

Since 2009, the website iwaspoisoned.com has allowed victims of food-poisoning victims to help others avoid such an ordeal by crowd-sourcing food illnesses on one easy-to-use, consumer-led platform.

Whereas previously a consumer struck down by food poisoning may have been limited to complaining to the offending food outlet, IWasPosioned allows users to submit detailed reports of food-poisoning incidents – including symptoms, location and space to describe the exact effects and duration of the incident. The information is then transferred in real time to public health organisations and food industry groups, who use the data to flag potentially dangerous foodborne illness before a serious outbreak occurs.

In the United States alone, where food safety standards are among the highest in the world, there are still 48 million cases of food poisoning per year. From those cases, 128,000 result in hospitalisation and 3,000 in death, according to data from the U.S. Food and Drug Association.

Back in 2008 the site’s founder, Patrick Quade, himself fell foul to food poisoning after eating a BLT from a New York deli which caused him to be violently ill. Concerned by the lack of options for reporting such incidents, he set up the novel crowdsourcing platform, which also aims at improving transparency in the food monitoring industry.

The emergence of IWasPoisoned is part of the wider trend of consumers taking revenge against companies via digital platforms, which spans various industries. In the case of IWasPoisoned, reports of foodborne illness have seriously tarnished the reputations of several major food retailers….(More)”.

Reflecting the Past, Shaping the Future: Making AI Work for International Development

Curated on September 5, 2018 by Stefaan Verhulst

USAID Report: “We are in the midst of an unprecedented surge of interest in machine learning (ML) and artificial intelligence (AI) technologies. These tools, which allow computers to make data-derived predictions and automate decisions, have become part of daily life for billions of people. Ubiquitous digital services such as interactive maps, tailored advertisements, and voice-activated personal assistants are likely only the beginning. Some AI advocates even claim that AI’s impact will be as profound as “electricity or fire” that it will revolutionize nearly every field of human activity. This enthusiasm has reached international development as well. Emerging ML/AI applications promise to reshape healthcare, agriculture, and democracy in the developing world. ML and AI show tremendous potential for helping to achieve sustainable development objectives globally. They can improve efficiency by automating labor-intensive tasks, or offer new insights by finding patterns in large, complex datasets. A recent report suggests that AI advances could double economic growth rates and increase labor productivity 40% by 2035. At the same time, the very nature of these tools — their ability to codify and reproduce patterns they detect — introduces significant concerns alongside promise.

In developed countries, ML tools have sometimes been found to automate racial profiling, to foster surveillance, and to perpetuate racial stereotypes. Algorithms may be used, either intentionally or unintentionally, in ways that result in disparate or unfair outcomes between minority and majority populations. Complex models can make it difficult to establish accountability or seek redress when models make mistakes. These shortcomings are not restricted to developed countries. They can manifest in any setting, especially in places with histories of ethnic conflict or inequality. As the development community adopts tools enabled by ML and AI, we need a cleareyed understanding of how to ensure their application is effective, inclusive, and fair. This requires knowing when ML and AI offer a suitable solution to the challenge at hand. It also requires appreciating that these technologies can do harm — and committing to addressing and mitigating these harms.

ML and AI applications may sometimes seem like science fiction, and the technical intricacies of ML and AI can be off-putting for those who haven’t been formally trained in the field. However, there is a critical role for development actors to play as we begin to lean on these tools more and more in our work. Even without technical training in ML, development professionals have the ability — and the responsibility — to meaningfully influence how these technologies impact people.

You don’t need to be an ML or AI expert to shape the development and use of these tools. All of us can learn to ask the hard questions that will keep solutions working for, and not against, the development challenges we care about. Development practitioners already have deep expertise in their respective sectors or regions. They bring necessary experience in engaging local stakeholders, working with complex social systems, and identifying structural inequities that undermine inclusive progress. Unless this expert perspective informs the construction and adoption of ML/AI technologies, ML and AI will fail to reach their transformative potential in development.

This document aims to inform and empower those who may have limited technical experience as they navigate an emerging ML/AI landscape in developing countries. Donors, implementers, and other development partners should expect to come away with a basic grasp of common ML techniques and the problems ML is uniquely well-suited to solve. We will also explore some of the ways in which ML/AI may fail or be ill-suited for deployment in developing-country contexts. Awareness of these risks, and acknowledgement of our role in perpetuating or minimizing them, will help us work together to protect against harmful outcomes and ensure that AI and ML are contributing to a fair, equitable, and empowering future…(More)”.