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Artificial Intelligence Uses Facebook Data to Predict Mental Illness
A study that used AI to detect mood disorders among Facebook users.
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Applied Technology Review | Wednesday, February 10, 2021
A study that used AI to detect mood disorders among Facebook users.
FREMONT, CA: It's easy to do bad things with Facebook data. From targeting bizarrely specific T-shirts to manipulating the electorate, the questionable goals to which the social media giant can be attributed are numerous. But there are also people who are trying to use Facebook for a good purpose - or at least to improve the diagnosis of mental illness. On December 3, a group of researchers reported that they had successfully predicted a psychiatric diagnosis based on Facebook data - using messages sent up to 18 months before the user received the official diagnosis.
The team worked with 223 volunteers, all of whom gave researchers access to their personal Facebook messages. Researchers use artificial intelligence algorithms, using attributes extracted from these messages and Facebook photos posted by each participant to predict whether they suffer from mood disorders (such as bipolar disorder or depression), schizophrenia spectrum disorder or not Mental health problems. According to their research results, foul language usually indicates mental illness, and perceptual words (such as seeing, feeling, hearing) and words related to negative emotions indicate schizophrenia. In the photo, more blue is related to mood disorders.
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To assess the success of their algorithm, the researchers used a common metric in artificial intelligence to measure the trade-off between false positives and false negatives. As the algorithm classifies more and more participants as positive (for example, with schizophrenia spectrum disorder), it will miss fewer participants who really have schizophrenia (low false negative rate), but It classifies certain healthy participants as suffering from schizophrenia (high false positive rate). A perfect algorithm cannot have false positives and false negatives at the same time; such an algorithm will earn 1 point. The random guess algorithm will get 0.5 points. According to the specific predictions they asked the algorithm to make, the research team scored between 0.65 and 0.77. Even if researchers limit themselves to information more than a year before the subject’s diagnosis, the predictions they make may be much better than the results expected by chance.
According to H. Andrew Schwartz, associate professor of computer science at Stony Brook University, who was not involved in the study, these results are comparable to those obtained by PHQ-9, the standard 10-question questionnaire used to screen for depression. . This result creates the possibility that Facebook data could be used for mental illness screening - potentially long before the patient would otherwise have received a diagnosis.
Birnbaum is far from the first researcher to use social media data to predict the presence of mental illness. Previously, researchers used Facebook status, tweets, and Reddit posts to identify diagnoses ranging from depression to attention deficit hyperactivity disorder. But he and his team created a new situation by working directly with patients with existing psychiatric diagnoses. Generally speaking, other researchers who cannot make a clinically definitive diagnosis-they have used the words of the subjects to make a diagnosis, ask them to make a self-diagnosis, or have them receive a questionnaire like PHQ-9 instead of diagnosis. In contrast, everyone in Birnbaum's study received a formal diagnosis from a psychiatrist. And because researchers have clear dates for making these diagnoses, they can try to make predictions based on the messages sent by patients before they learned about their mental illness.
Researchers have a long way to go before designing these algorithms and figuring out how to implement them ethically. However, Birnbaum hopes that social media data can become a normal part of psychiatric practice in the next five to ten years.
Interior design trends are changing, influenced by evolving visual tastes, cultural movements, technological progress, and shifts in lifestyle. The trends adapt to reflect people's changing needs and desires. While they might appear straightforward, the styles selected often carry more profound significance, reflecting personal and societal values. Interior design remains a dynamic field that is continuously evolving to align with the contemporary landscape and individual expressions.
Use of Color
Spaces can be made bigger, warmer, and calmer by color. Bright colors, such as 'Viva Magenta' 18-1750, make them stand out. With its vibrant hue, this bold hue illustrates how color plays a huge role in interior design. Color plays a vital role in creating a unique and captivating space, and this choice proves it.
Mixed Materials
Biophilic design is a popular trend in interior design, combining natural elements with beautiful textures and tones to enhance comfort and aesthetics. This style can be achieved by pairing multiple materials, such as stones, timber grains, tiles, and plants, to create a strong juxtaposition that communicates the space's function or a more prominent aesthetic theme.
Warm Colour Palettes
Bold colors dominate this year's trends, but warm color palettes are expected to become more prominent. Despite years of Covid-19 restrictions, people are now back to normalcy, yearning for more variety and comfort in their daily lives. Warm, earthy tones can create a sense of tranquillity in biophilic design, addressing the cravings of the new normal.
Geometric Shapes
The COVID-19 pandemic has prompted a shift in interior design towards minimalistic styles, requiring more vibrancy and life in spaces. Geometric patterns create solid visual features on walls, floors, and ceilings, creating a more balanced and visually appealing space. These patterns can develop focal points and add movement to the overall design, making spaces more dynamic and stimulating.
Sustainable Design
The design world embraces sustainable design, incorporating recycled materials, reused products, and long-term materials. This trend not only benefits the environment but also creates unique aesthetics. Businesses and places can demonstrate their commitment to reducing carbon footprint and promoting a wider and greener future. Sustainable design also creates visually appealing spaces that promote health and well-being for occupants, showcasing their commitment to a greener future. ...Read more
Sector convergence, which involves the breakdown of traditional divisions among several industries, is being accelerated by practical technology. This phenomena allows firms to leverage technology and proficiencies outside of their principal domain, fostering new business paradigms, value constellations, and opportunities.
Key Technological Catalysts
Several transformative technologies are serving as the primary drivers of industry convergence, providing the infrastructure and capabilities that enable cross-sector collaboration and the creation of new value. The Internet of Things (IoT) connects physical assets to digital networks, generating vast streams of data that integrate physical and virtual operations. For example, smartwatches and fitness trackers, initially consumer electronics, now serve the healthcare sector by supporting remote patient monitoring and preventative care. Artificial Intelligence (AI) and Machine Learning (ML) build on this data by enabling advanced analytics, driving smarter decision-making, and delivering hyper-personalized services across various industries. Retailers utilize AI to predict consumer trends, optimize supply chains, and personalize shopping experiences. At the same time, financial institutions leverage it for fraud detection and algorithmic trading, thereby blurring the boundaries between technology and traditional banking. Blockchain adds another dimension by offering a secure, transparent framework for managing transactions and data across multiple parties, streamlining cross-sector collaboration in areas such as supply chain management by reducing reliance on intermediaries. The rollout of 5G connectivity provides the speed and low latency necessary to support these technologies at scale, enabling real-time communication between devices and seamless integration across various industries. Autonomous vehicles, for instance, depend on instantaneous connectivity with smart city infrastructure and other cars, exemplifying the convergence of automotive, telecommunications, and urban planning.
Impact on Business and Society
Sector convergence is profoundly altering conventional business paradigms. A single product or service no longer defines enterprises; instead, they are evolving into comprehensive ecosystems that deliver an array of integrated solutions. This evolution fosters novel opportunities for innovation, concurrently introducing complexities such as navigating intricate regulatory frameworks and managing data privacy across disparate sectors. From a consumer perspective, this convergence facilitates enhanced convenience, personalization, and seamless experiences; however, it also raises concerns regarding data security and market dominance. As the trajectory of applied technology continues its advancement, the demarcations between industries will inevitably diminish, thereby ushering in a future characterized by interconnected and integrated services.
Ultimately, applied technology transcends mere efficiency; it represents a fundamental force for change, reshaping the very structure of our economy. The future will be defined by ecosystems of integrated services, where companies succeed not by dominating a single sector, but by seamlessly connecting their offerings with others. This era of convergence promises unprecedented innovation and convenience for consumers. Yet, it also necessitates a proactive approach from businesses and policymakers to navigate the challenges of regulation, data privacy, and market power. Embracing this paradigm shift is crucial for companies seeking to develop in a world where the distinctions between sectors no longer exist. ...Read more
Artificial intelligence and machine learning are proving to be very useful for weather prediction, as they are in many other fields of science. Machine learning has shown some potential in our research on forecasting high-impact weather. Researchers also believe these tools open up new possibilities for better forecasts where more than human expertise is required.
There still are major challenges with employing just human expertise. It remains difficult to predict tornadoes, large hail, or heavy rain during thunderstorms. Inaccurate predictions trigger subsequent inaccuracies in predicting small changes in complex processes, making weather less predictable.
Models: Numerical weather prediction models are today's primary tools for weather forecasters. Weather stations, balloons, and satellites provide observations of the current state of the atmosphere for these models, which solve equations governing air movement.
It is possible to predict most weather systems with these models, but the smaller the event, the harder it is to do. Integrating weather prediction models with human analysis leads to better predictions. Forecasters are remarkably good at analyzing the huge amount of weather data they receive daily, but their memory and bandwidth could be improved. Machine learning and artificial intelligence can help with some of these challenges.
Artificial intelligence (AI): These tools allow forecasters to make predictions beyond models' capabilities, such as high-impact weather. A machine learning approach is also being incorporated into numerical weather prediction models to speed up tasks that can be computationally intensive, such as predicting how water vapor turns into rain, snow, and hail.
Machine learning (ML): In the future, machine learning models may replace traditional numerical weather forecasting models. These systems process past weather maps instead of solving complex physical equations as models do to learn how weather systems typically behave. They then make weather predictions based on historical data and current weather conditions.
Research has shown that machine learning-based forecast systems can predict general weather patterns and numerical weather prediction models with only a fraction of the computing power. Researchers are closely testing these new tools and developing new methods for forecasting local weather. Although they still need to provide detailed information about local weather, these tools have promising prospects. ...Read more
Submarine optical fiber technology forms the backbone of the modern global communication network, enabling seamless data transmission across continents. These undersea cables are pivotal in supporting internet, telecommunication, and financial systems by transmitting vast amounts of data at high speeds and low latency.
The concept of submarine communication dates back to the mid-19th century with the installation of the first undersea telegraph cable between England and France in 1850. However, it wasn’t until the 1980s, with the advent of fiber-optic technology, that undersea cables began to approach their modern potential. Fiber-optic cables revolutionized communication by using light signals to carry data, achieving unprecedented bandwidth and reliability compared to earlier copper-based systems.
The first submarine fiber-optic cable, TAT-8, was deployed in 1988, connecting the United States, the United Kingdom, and France. With a capacity of 280 Mbit/s, it was a groundbreaking advancement. Since then, the technology has evolved rapidly, with modern cables capable of transmitting terabits of data per second.
Today, submarine optical fiber cables are the foundation of global connectivity, carrying approximately 99 percent of international data traffic. They support the internet, telephone communications, and financial systems, underpinning activities from social networking to realtime stock trading.
One of the key advantages of submarine cables is their ability to offer low-latency communication over vast distances. This feature is crucial for applications like video conferencing, cloud computing, and e-commerce, where delays can significantly impact user experience and functionality.
The geographic distribution of submarine cables is closely tied to global economic activity. Major routes connect hubs like North America, Europe, and Asia, while regional cables serve to link smaller markets. Recent efforts have focused on expanding connectivity to underserved regions, particularly in Africa and the Pacific islands, to bridge the digital divide.
Despite their critical importance, submarine cables face several challenges. Physical damage from natural events like earthquakes and human activities like fishing and anchoring is a significant concern. For instance, the 2006 Hengchun earthquake in Taiwan caused extensive damage to cables in the region, disrupting internet services across Asia.
Cables are also vulnerable to intentional acts of sabotage. Given their critical role, they are increasingly recognized as strategic assets, and their protection has become a priority for governments and organizations worldwide.
Another challenge is the high cost of installation and maintenance. Deploying a submarine cable involves complex logistics, including surveying the ocean floor, manufacturing the cable, and laying it using specialized ships. Once operational, cables require regular maintenance, particularly in shallow waters where the risk of damage is higher.
The submarine optical fiber industry is continuously evolving to meet the growing demand for bandwidth and reliability. One area of innovation is the development of ultra-highcapacity cables. These systems leverage advancements in optical amplification and multiplexing technologies to transmit data at rates exceeding 100 terabits per second.
Another focus is improving the resilience of cables to physical damage. Innovations include stronger armoring materials and the development of monitoring systems that can detect and locate potential threats in real time. Advances in cable repair technology are also reducing downtime when damage occurs.
The integration of artificial intelligence (AI) and machine learning into cable network management is another emerging trend. These technologies enable predictive maintenance and optimize data traffic, enhancing the efficiency and reliability of submarine cable systems.
While submarine cables are generally considered environmentally benign, their installation and operation can have localized effects on marine ecosystems. Laying a cable involves disturbing the seabed, which can impact benthic habitats. To mitigate these effects, environmental assessments are conducted before installation, and routes are carefully planned to avoid sensitive areas.
During their operational life, submarine cables pose minimal risk to marine life. However, ongoing research aims to better understand and address any potential long-term impacts, ensuring that this critical infrastructure remains sustainable.
Looking ahead, the demand for submarine optical fiber technology is expected to grow as internet penetration increases globally and data consumption rises. The advent of technologies like 5G, the Internet of Things (IoT), and artificial intelligence will further drive the need for robust and high-capacity communication networks.
Emerging trends include the deployment of regional and intracontinental cables to enhance local connectivity and reduce dependence on intercontinental links. Projects like the 2Africa cable, which aims to encircle the African continent, exemplify this shift.
Another area of focus is the integration of renewable energy solutions into cable operations. Powering repeaters along submarine cables is a significant energy requirement, and exploring sustainable energy sources could reduce the environmental footprint of these systems.
Submarine optical fiber technology has transformed global communication, enabling the seamless exchange of information across continents and underpinning the digital economy. As the demand for data continues to grow, this technology will remain at the forefront of connectivity, evolving to meet new challenges and opportunities. By addressing issues like physical resilience, environmental impact, and energy efficiency, submarine cables will continue to play a vital role in shaping the future of global communication networks. ...Read more