Category Archives: Social Network Analysis

Reflections and Notes from the Sentiment Analysis Symposium #SAS14

The Sentiment Analysis Symposium took place in NY this week in the beautiful offices of the New York Academy of Sciences. The Symposium was framed as a transition into a new era of sentiment analysis, an era of human analytics or humetrics.

The view from the New York Academy of Sciences is really stunning!

The view from the New York Academy of Sciences is really stunning!

Two main points that struck me during the event. One is that context is extremely important for developing high quality analytics, but the actual shape that “context” takes varies greatly. The second is a seeming disconnect between the product developers, who are eagerly developing new and better measures, and the customers, who want better usability, more customer support, more customized metrics that fit their preexisting analytic frameworks and a better understanding of why social media analysis is worth their time, effort and money.

Below is a summary of some of the key points. My detailed notes from each of the speakers, can be viewed here. I attended both the more technical Technology and Innovation Session and the Symposium itself.

Context is in. But what is context?

The big takeaway from the Technology and Innovation session, which was then carried into the second day of the Sentiment Analysis Symposium was that context is important. But context was defined in a number of different ways.

 

New measures are coming, and old measures are improving.

The innovative new strategies presented at the Symposium made for really amazing presentations. New measures include voice intonation, facial expressions via remote video connections, measures of galvanic skin response, self tagged sentiment data from social media sharing sites, a variety of measures from people who have embraced the “quantified self” movement, metadata from cellphone connections (including location, etc.), behavioral patterning on the individual and group level, and quite a bit of network analysis. Some speakers showcased systems that involved a variety of linked data or highly visual analytic components. Each of these measures increase the accuracy of preexisting measures and complicate their implementation, bringing new sets of challenges to the industry.

Here is a networked representation of the emotion transition dynamics of 'Hopeful'

Here is a networked representation of the emotion transition dynamics of ‘Hopeful’

This software package is calculating emotional reactions to a Youtube video that is both funny and mean

This software package is calculating emotional reactions to a Youtube video that is both funny and mean

Meanwhile, traditional text-based sentiment analyses are also improving. Both the quality of machine learning algorithms and the quality of rule based systems are improving quickly. New strategies include looking at text data pragmatically (e.g. What are common linguistics patterns in specific goal directed behavior strategies?), gaining domain level specificity, adding steps for genre detection to increase accuracy and looking across languages. New analytic strategies are integrated into algorithms and complementary suites of algorithms are implemented as ensembles. Multilingual analysis is a particular challenge to ML techniques, but can be achieved with a high degree of accuracy using rule based techniques. The attendees appeared to agree that rule based systems are much more accurate that machine learning algorithms, but the time and expertise involved has caused them to come out of vogue.

 

“The industry as a whole needs to grow up”

I suspect that Chris Boudreaux of Accenture shocked the room when he said “the industry as a whole really needs to grow up.” Speaking off the cuff, without his slides after a mishap and adventure, Boudreaux gave the customer point of view toward social media analytics. He said said that social media analysis needs to be more reliable, accessible, actionable and dependable. Companies need to move past the startup phase to a new phase of accountability. Tools need to integrate into preexisting analytic structures and metrics, to be accessible to customers who are not experts, and to come better supported.

Boudreaux spoke of the need for social media companies to better understand their customers. Instead of marketing tools to their wider base of potential customers, the tools seem to be developed and marketed solely to market researchers. This has led to a more rapid adoption among the market research community and a general skepticism or ambivalence across other industries, who don’t see how using these tools would benefit them.

The companies who truly value and want to expand their customer base will focus on the usability of their dashboards. This is an area ripe for a growing legion of usability experts and usability testing. These dashboards cannot restrict API access and understanding to data scientist experts. They will develop, market and support these dashboards through productive partnerships with their customers, generating measures that are specifically relevant to them and personalized dashboards that fit into preexisting metrics and are easy for the customers to understand and react to in a very practical and personalized sense.

Some companies have already started to work with their customers in more productive ways. Crimson Hexagon, for example, employs people who specialize in using their dashboard. These employees work with customers to better understand and support their use of the platform and run studies of their own using the platform, becoming an internal element in the quality feedback loop.

 

Less Traditional fields for Social Media Analysis:

There was a wide spread of fields represented at the Symposium. I spoke with someone involved in text analysis for legal reasons, including jury analyses. I saw an NYPD name tag. Financial services were well represented. Publishing houses were present. Some health related organizations were present, including neuroscience specialists, medical practitioners interested in predicting early symptoms of diseases like Alzheimer’s, medical specialists interested in helping improve the lives of people with diseases like Autism (e.g. with facial emotion recognition devices), pharmaceutical companies interested in understanding medical literature on a massive scale as well as patient conversation about prescriptions and participation in medical trials. There were traditional market research firms, and many new startups with a wide variety of focuses and functions. There were also established technology companies (e.g. IBM and Dell) with innovation wings and many academic departments. I’m sure I’ve missed many of the entities present or following remotely.

The better research providers can understand the potential breadth of applications  of their research, the more they can improve the specific areas of interest to these communities.

 

Rethinking the Public Image of Sentiment Analysis:

There was some concern that “social” is beginning to have too much baggage to be an attractive label, causing people to think immediately of top platforms such as Facebook and Twitter and belying the true breadth of the industry. This prompted a movement toward other terms at the symposium, including human analytics, humetrics, and measures of human engagement.

 

Accuracy

Accuracy tops out at about 80%, because that’s the limit of inter-rater reliability in sentiment analysis. Understanding the more difficult data is an important challenge for social media analysts. It is important for there to be honesty with customers and with each other about the areas where automated tagging fails. This particular area was a kind of elephant in the room- always present, but rarely mentioned.

Although an 80% accuracy rate is really fantastic compared to no measure at all, and it is an amazing accomplishment given the financial constraints that analysts encounter, it is not an accuracy rate that works across industries and sectors. It is important to consider the “fitness for use” of an analysis. For some industries, an error is not a big deal. If a company is able to respond to 80% of the tweets directed at them in real-time, they are doing quite well, But when real people or weightier consequences are involved, this kind of error rate is blatantly unacceptable. These are the areas where human involvement in the analysis is absolutely critical. Where, honestly speaking, are algorithms performing fantastically, and where are they falling short? In the areas where they fall short, human experts should be deployed, adding behavioral and linguistic insight to the analysis.

One excellent example of Fitness for Use was the presentation by Capital Market Exchange. This company operationalizes sentiment as expert opinion. They mine a variety of sources for expert opinions about investing, and then format the commonalities in an actionable way, leading to a substantial improvement above market performance for their investors. They are able to gain a great deal of market traction that pure sentiment analysts have not by valuing the preexisting knowledge structures in their industry.

 

Targeting the weaknesses

It is important that the field look carefully at areas where algorithms do and do not work. The areas where they don’t represent whole fields of study, many of which have legions of social media analysts at the ready. This includes less traditional areas of linguistics, such as Sociolinguistics, Conversation Analysis (e.g. looking at expected pair parts) and Discourse Analysis (e.g. understanding identity construction), as well as Ethnography (with fast growing subfields, such as Netnography), Psychology and Behavioral Economics. Time to think strategically to better understand the data from new perspectives. Time to more seriously evaluate and invest in neutral responses.

 

Summing Up

Social media data analysis, large scale text analysis and sentiment analysis have enjoyed a kind of honeymoon period. With so many new and fast growing data sources, a plethora of growing needs and applications, and a competitive and fast growing set of analytic strategies, the field has been growing at an astronomical rate. But this excitement has to be balanced out with the practical needs of the marketplace. It is time for growing technologies to better listen to and accommodate the needs of the customer base. This shift will help ensure the viability of the field and free developers up to embrace the spirit of intellectual creativity.

This is an exciting time for a fast growing field!

Thank you to Seth Grimes for organizing such a great event.

 

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Free Range Research will cover the Sentiment Symposium in NYC next week #SAS14

Next week Free Range Research will be in NYC to cover the Sentiment Symposium and Innovation session, and I can’t tell you how excited I am about it!

The development of useful analytics hinges on constant innovation and experimentation, and binary positive/negative measures don’t come close to describing the full potential of social media data. This year’s symposium is an effort to confront the limitations of calcified measures of sentiment head on by introducing new measures and new perspectives.

As a programmer, a quantitative and qualitative analyst, a recent academic, and a fervent believer in the power of the power of mixed methods and interdisciplinary research, I am eager to cover the Symposium as both an enthusiastic and a critical voice. The new directions that will be represented are exciting and interesting, and I expect to gain a better feel for many cutting edges analytic practices. But the proprietary and competitive nature of the social media marketplace has led to countless overblown claims. I do not plan to simply be a conduit for these. My goal will be to share as much as possible of what I learn at the Symposium in a grounded and accessible way, as timely as possible, offering counterpoints and data driven examples when possible, on both my blog and through my Twitter handle @FreeRangeRsrch

I hope you’ll join me!

 

today in research & zen: “What is known as ‘realizing the mystery’ is nothing more than breaking through to grab an ordinary person’s life” Te-Shan

Planning another Online Research, Offline lunch

I’m planning another Online Research, Offline lunch for researchers in the Washington DC area later this month. The specific date and location are TBA, but it will be toward the end of February near Metro Center.

These lunches are designed to welcome professionals and students involved in online research across a variety of disciplines, fields and sectors. Past attendees have had a wide array of interests and specialties, including usability and interface design, data science, natural language processing, social network analysis, social media monitoring, discourse analysis, netnography, digital humanities and library science.

The goal of this series is to provide an informal venue for a diverse set of researchers to talk with each other and gain a wider context for understanding their work. They are an informal and flexible way to researchers to meet each other, talk and learn. Although Washington DC is a great meeting place for specific areas of online research, there are few informal opportunities for interdisciplinary gatherings of professionals and academics.

Here is a form that can be used to add new people to the list. If you’re already on the list you do not need to sign up again. Please feel free to share the form with anyone else who may be interested:

Great readings that might shake you to your academic core? I’m compiling a list

In the spirit of research readings that might shake you to your academic core, I’m compiling a list. Please reply to this thread with any suggestions you have to add. They can be anything from short blog posts (microblog?) to research articles to books. What’s on your ‘must read’ list?

Here are a couple of mine to kick us off:

 

Charles Goodwin’s Professional Vision paper

I don’t think I’ve referred to any paper as much as this one. It’s about the way our professional training shapes the way we see the things around us. Shortly after reading this paper I was in the gym thinking about commonalities between the weight stacks and survey scales. I expect myself to be a certain relative strength, and when that doesn’t correlate with the place where I need to place my pin I’m a little thrown off.

It also has a deep analysis of the Rodney King verdict.

 

Revitalizing Chinatown Into a Heterotopia by Jia Lou

This article is based on a geosemiotic analysis of DC’s Chinatown. It is one of the articles that helped me to see that data really can come in all forms

 

After method: Mess in Social Science Research by John Law

This is the book that inspired this list. It also inspired this blog post.

 

On Postapocalyptic Research Methods and Failures, Honesty and Progress in Research

I’m reading a book that I like to call “post-apocalyptic research methodology.” It’s ‘After Method: Mess in Social Science Research’ by John Law. At this point the book reads like a novel. I can’t quite imagine where he’ll take his premise, but I’m searching for clues and turning pages. In the meantime, I’ve been thinking quite a bit about failure, honesty, uncertainty and humility in research.

How is the current research environment like a utopian society?

The research process is often idealized in public spaces. Whether the goal of the researcher is to publish a paper based on their research, present to an audience of colleagues or stakeholders about their research, or market the product of their research, all researchers have a vested interest in the smoothness of the research process. We expect to approach a topic, perform a series of time-tested methods or develop innovative new methods with strong historical traditions, apply these methods as neatly as possible, and end up with a series of strong themes that describe the majority of our data. However, in Law’s words “Parts of the world are caught in our ethnographies, our histories and our statistics. But other parts are not, and if they are then this is because they have been distorted into clarity.” (p. 2) We think of methods as a neutral middle step and not a political process, and this way of thinking allows us to focus on reliability and validity as surface measures and not inherent questions. “Method, as we usually imagine it, is a system for offering more or less bankable guarantees.” (p. 9)

Law points out that research methods are, in practice, very limited in the social sciences “talk of method still tends to summon up a relatively limited repertoire of responses.” (p. 3) Law also points out that every research method is inherently political. Every research method involves a way of seeing or a way of looking at the data, and that perspective maps onto the findings it yields. Different perspectives yield different findings, whether they are subtly or dramatically different. Law’s central assertion is that methods don’t just describe social realities but also help to create them. Recognizing the footprint of our own methods is a step toward better understanding our data and results.

In practice, the results that we focus on are largely true. They describe a large portion of the data, ascribing the rest of the data to noise or natural variation. When more of our data is described in our results, we feel more confident about our data and our analysis.

Law argues that this smoothed version of reality is far enough from the natural world that it should perk our ears. Research works to create a world that is simple and falls into place neatly and resembles nothing we know, “’research methods’ passed down to us after a century of social science tend to work on the assumption that the world is properly to be understood as a set of fairly specific, determinate, and more or less identifiable processes.” (p. 5) He suggests instead that we should recognize the parts that don’t fit, the areas of uncertainty or chaos, and the areas where our methods fail. “While standard methods are often extremely good at what they do, they are badly adapted to the study of the ephemeral, the indefinite and the irregular.” (p. 4). “Regularities and standardizations are incredibly powerful tools, but they set limits.” (p. 6)

Is the Utopia starting to fall apart?

The current research environment is a bit different from that of the past. More people are able to publish research at any stage without peer review using media like blogs. Researchers are able to discuss their research while it is in progress using social media like Twitter. There is more room to fail publicly than there ever has been before, and this allows for public acknowledgment of some of the difficulties and challenges that researcher’s face.

Building from ashes

Law briefly introduces his vision on p. 11 “My hope is that we can learn to live in a way that is less dependent on the automatic. To live more in and through slow method, or vulnerable method, or quiet method. Multiple method. Modest method. Uncertain method. Diverse method.”

Many modern discussions of about management talk about the value of failure as an innovative tool. Some of the newer quality control measures in aviation and medicine hinge on the recognition of failure and the retooling necessary to prevent or limit the recurrences of specific types of events. The theory behind these measures is that failure is normal and natural, and we could never predict the many ways in which failure could happen. So, instead of exclusively trying to predict or prohibit failure, failures should be embraced as opportunities to learn.

Here we can ask: what can researchers learn from the failures of the methods?

The first lesson to accompany any failure is humility. Recognizing our mistakes entails recognizing areas where we fell short, where our efforts were not enough. Acknowledging that our research training cannot be universal, that applying research methods isn’t always straightforward and simple, and that we cannot be everything to everyone could be an important stage of professional development.

How could research methodology develop differently if it were to embrace the uncertain, the chaotic and the places where we fall short?

Another question: What opportunities to researchers have to be publicly humble? How can those spaces become places to learn and to innovate?

Note: This blog post is dedicated to Dr Jeffrey Keefer @ NYU, who introduced me to this very cool book and has done some great work to bring researchers together

Methodology will only get you so far

I’ve been working on a post about humility as an organizational strategy. This is not that post, but it is also about humility.

I like to think of myself as a research methodologist, because I’m more interested in research methods than any specific area of study. The versatility of methodology as a concentration is actually one of the biggest draws for me. I love that I’ve been able to study everything from fMRI subjects and brain surgery patients to physics majors and teachers, taxi drivers and internet activists. I’ve written a paper on Persepolis as an object of intercultural communication and a paper on natural language processing of survey responses, and I’m currently studying migration patterns and communication strategies.

But a little dose of humility is always a good thing.

Yesterday I hosted the second in a series of online research, offline lunches that I’ve been coordinating. The lunches are intended as a way to get people from different sectors and fields who are conducting research on the internet together to talk about their work across the artificial boundaries of field and sector. These lunches change character as the field and attendees change.

I’ve been following the field of online research for many years now, and it has changed dramatically and continually before my eyes. Just a year ago Seth Grimes Sentiment Analysis Symposia were at the forefront of the field, and now I wonder if he is thinking of changing the title and focus of his events. Two years ago tagging text corpora with grammatical units was a standard midstep in text analysis, and now machine algorithms are far more common and often much more effective, demonstrating that grammar in use is far enough afield from grammar in theory to generate a good deal of error. Ten years ago qualitative research was often more focused on the description of platforms than the behaviors specific to them, and now the specific innerworkings of platform are much more of an aside to a behavioral focus.

The Association of Internet Researchers is currently having their conference in Denver (#ir14), generating more than 1000 posts per day under the conference hashtag and probably moving the field far ahead of where it was earlier this week.

My interest and focus has been on the methodology of internet research. I’ve been learning everything from qualitative methods to natural language processing and social network analysis to bayesian methods. I’ve been advocating for a world where different kinds of methodologists work together, where qualitative research informs algorithms and linguists learn from the differences between theoretical grammar and machine learned grammar, a world where computer scentists work iteratively with qualitative researchers. But all of these methods fall short because there is an elephant in the methodological room. This elephant, ladies and gentleman, is made of content. Is it enough to be a methodological specialist, swinging from project to project, grazing on the top layer of content knowledge without ever taking anything down to its root?

As a methodologist, I am free to travel from topic area to topic area, but I can’t reach the root of anything without digging deeper.

At yesterday’s lunch we spoke a lot about data. We spoke about how the notion of data means such different things to different researchers. We spoke about the form and type of data that different researchers expect to work with, how they groom data into the forms they are most comfortable with, how the analyses are shaped by the data type, how data science is an amazing term because just about anything could be data. And I was struck by the wide-openness of what I was trying to do. It is one thing to talk about methodology within the context of survey research or any other specific strategy, but what happens when you go wider? What happens when you bring a bunch of methodologists of all stripes together to discuss methodology? You lack the depth that content brings. You introduce a vast tundra of topical space to cover. But can you achieve anything that way? What holds together this wide realm of “research?”

We speak a lot about the lack of generalizable theories in internet research. Part of the hope for qualitative research is that it will create generalizable findings that can drive better theories and improve algorithmic efforts. But that partnership has been slow, and the theories have been sparse and lightweight. Is it possible that the internet is a space where theory alone just doesn’t cut it? Could it be that methodologists need to embrace content knowledge to a greater degree in order to make any of the headway we so desperately want to make?

Maybe the missing piece of the puzzle is actually the picture painted on the pieces?

comic

Planning a second “Online Research, Offline Lunch”

In August we hosted the first Online Research, Offline Lunch for researchers involved in online research in any field, discipline or sector in the DC area. Although Washington DC is a great meeting place for specific areas of online research, there are few opportunities for interdisciplinary gatherings of professionals and academics. These lunches provide an informal opportunity for a diverse set of online researchers to listen and talk respectfully about our interests and our work and to see our endeavors from new, valuable perspectives. We kept the first gathering small. But the enthusiasm for this small event was quite large, and it was a great success! We had interesting conversations, learned a lot, made some valuable connections, and promised to meet again.

Many expressed interest in the lunches but weren’t able to attend. If you have any specific scheduling requests, please let me know now. Although I certainly can’t accommodate everyone’s preferences, I will do my best to take them into account.

Here is a form that can be used to add new people to the list. If you’re already on the list you do not need to sign up again. Please feel free to share the form with anyone else who may be interested:

 

Reflections on Social Network Analysis & Social Media Research from #SMSociety13

A dispatch from a quantitative side of social media research!

Here are a few of my reflections from the Social Media & Society conference in Halifax and my Social Network Analysis class.

I should first mention that I was lucky in two ways.

  1. I finished the James Bond movie ‘Skyfall’ as my last Air Canada flight was landing. (Ok, I didn’t have to mention that)
  2. I finished my online course on Social Network Analysis  hours before leaving for a conference that kicked off with an excellent  talk about Networks and diffusion. And then on the second day of the conference I was able to manipulate a network visualization with my hands using a 96 inch touchscreen at the Dalhousie University Social Media Lab  (Great lab, by the way, with some very interesting and freely available tools)

 

This picture doesn't do this screen justice. This is *data heaven*

This picture doesn’t do this screen justice. This is *data heaven*

Social networks are networks built to describe human action in social media environments. They contain nodes (dots), which could represent people, usernames, objects, etc. and edges, lines joining nodes that represent some kind of relationship (friend, follower, contact, or a host of other quantitative measures). The course was a particularly great introduction to Social Network Analysis, because it included a book that was clear and interesting, a set of youtube videos and a website, all of which were built to work together. The instructor (Dr Jen Golbeck, also the author of the book and materials) has a very unique interest in SNA which gives the class an important added dimension. Her focus is on operational definitions and quantitative measures of trust, and because of this we were taught to carefully consider the role of the edges and edge weights in our networks.

Sharad Goel’s plenary at #SMSociety13 was a very different look at networks. He questioned the common notion of viral diffusion online by looking at millions of cases of diffusion. He discovered that very few diffusions actual resemble any kind of viral model. Instead, most diffusion happens on a very small scale. He used Justin Bieber as an example of diffusion. Bieber has the largest number of followers on Twitter, so when it he posts something it has a very wide reach (“the Bieber effect”). However, people don’t share content as often as we imagine. In fact, only a very small proportion of his followers share it, and only a small proportion of their followers share it. Overall, the path is wide and shallow, with less vertical layers than we had previously envisioned.

Goel’s research is an example of Big Data in action. He said that Big Data methods are important when the phenomenon you want to study happens very infrequently (e.g. one in a million), as is the case for actual instances of viral diffusion.

His conclusions were big, and this line of research is very informative and useful for anyone trying to communicate on a large scale.

Sidenote: the term ‘ego network’ came up quite a few times during the conference, but not everyone knew what an ego network is. An ego network begins with a single node and is measured by degrees. A one degree social network looks a bit like an asterisk- it simply shows all of the nodes that are directly connected to the original node. A 1.5 degree network would include the first degree connections as well as the connections between them. A two degree network contains all of the first degree connections to these nodes that were in the one degree network. And so on.

One common research strategy is to compare across ego networks.

My next post will move on from SNA to more qualitative aspects of the conference

Source: https://twitter.com/JeffreyKeefer/status/378921564281921537/photo/1 This was the backdrop for a qualitive panel

Source: https://twitter.com/JeffreyKeefer/status/378921564281921537/photo/1
This was the backdrop for a qualitative panel. It says “Every time you say ‘data driven decision’ a fairy dies.