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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>User Interface Personalization in News Apps</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Marios Constantinides</string-name>
          <email>m.constantinides@cs.ucl.ac.uk</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>John Dowell</string-name>
          <email>j.dowell@cs.ucl.ac.uk</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Department of Computer Science, University College London</institution>
          ,
          <addr-line>NW1 2FD</addr-line>
          ,
          <country country="UK">UK</country>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2016</year>
      </pub-date>
      <abstract>
        <p>News is increasingly being accessed on smartphones and tablets, establishing mobile news reading as one of the most popular activities on mobile devices. News reading is also a very individual activity with marked differences in the way people read and access the news, however, news apps have limited personalization. In this paper, we approach news personalization as a two-dimensional problem. We discuss news personalization in terms of 'what' content is delivered to the user and 'how' that content is consumed. We present our approach towards user interface personalization in news apps and we conclude that news content recommendation and user interface personalization should co-exist in news apps.</p>
      </abstract>
      <kwd-group>
        <kwd>eol&gt;Mobile News Reading</kwd>
        <kwd>Personalization</kwd>
        <kwd>User Interfaces</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. INTRODUCTION</title>
      <p>
        News reading is being changed rapidly due to advances in digital
methods of consumption. App markets are now bursting with
prominent apps for accessing news spanning the globe, delivering
completely tailored news recommendations either based on users’
interests or location and aggregating news from multiple sources.
The use of mobile devices to consume news media is rapidly
growing and is seen as the future for the news industry as recent
numbers show [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ].
      </p>
      <p>
        Reading the news is now amongst the most popular activities
people perform on a daily basis with their handheld personal
devices [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ]. Additionally, it is a very individual activity in which
people follow idiosyncratic patterns for accessing and reading the
news. For example, people are likely to have distinctive ways in
browsing news headlines or choosing how much of an article to
read and how they do it [
        <xref ref-type="bibr" rid="ref18">18</xref>
        ]. This implied diversity in users’ news
reading behaviour is reflected by the wide choice of available
news apps, by the personalization features of some apps, and by
the development of recommendation engines to filter news. The
proliferation of smartphones and tablets along with the
indispensable nature that play in peoples’ everyday life indicate
their significant role as platforms for cross-media news
      </p>
    </sec>
    <sec id="sec-2">
      <title>2. RELATED RESEARCH</title>
    </sec>
    <sec id="sec-3">
      <title>2.1 Adaptivity in News Apps</title>
      <p>
        Much of the news personalization literature is encapsulated in the
areas of adaptable and adaptive systems [
        <xref ref-type="bibr" rid="ref25 ref27">25, 27</xref>
        ]. Adaptable
systems allow users to manually tailor the interface or the system
to fit their particular needs and demands to complete specific
tasks. Although these systems may require additional effort and
time by the end user to learn how to customize and use them [
        <xref ref-type="bibr" rid="ref22">22</xref>
        ],
they are widely deployed. The majority of news apps allow users
to manually create a personalized experience mainly through
configurations and customizations, for example, by explicitly
selecting topics of interest or specifying system’s parameters on
how they want the visual presentation of a story.
      </p>
      <p>We reviewed news apps from Apple’s and Google’s marketplaces
that provide personalization mostly in an adaptable manner; first,
to get a better understanding of how they achieve personalization,
and, second, to identify possible gaps that would inform the
design of more personal user interfaces. Our review is based on
online tech blogs including the DigitalTrends, the Wired, the
BusinessInsider and the SimplyZesty.</p>
      <p>Leading news organizations such as BBC and CNN have already
realized the need of personalization in their own news apps. For
example, BBC news app provides a more personal news reading
experience through customizations of the interface and other
system’s parameters related to the content. Example features of
the revamped app include the most read stories, an option to add a
list of news stories user follows, presentation settings of
displaying and categorising the stories such as a compact layout or
carousels and many others.</p>
      <p>A new breed of news apps, the news aggregators, has drawn the
attention lately. This type of service mainly focuses on the
aggregation and the classification of news content from multiple
sources. With more news sources emerging and a tremendous
amount of stories spanning all over the world, news aggregators
help users to identify news topics of interest easily and access
specific topics from different news providers. Flipboard, for
example, uses the metaphor of a ‘personal magazine’ by making
the entire reading process stylish. It gives the sense of flipping a
magazine page while navigating through news. Users curate and
share their own mini-magazines with the app, drawing in stories
on their preferred topics. Zite is an intelligent magazine-like news
app that recommends stories based on user’s interests and reading
habits. The app learns user’s preferences through a thumbs-up or
thumbs down button on each story. Inside.com – Breaking News
allows users to select news topics to follow and then provides
300-character summaries of relevant stories along with links to
the original sources. Newsbeat is another aggregator but one that
creates ‘personalised radio news bulletins’. Users select their
preferred text news sources from which stories are pulled each
day, summaries created, then news podcasts created using
text-tovoice technology. Feedly aggregates news items, longer articles,
blog posts, and quick videos into a single spot in an elegant way.
Further, instead of providing a massive list of articles it breaks the
content feed up into manageable chunks. News360 differentiates
from other aggregators by incorporating two swipeable screens, in
which the top part shows the most popular stories while the
bottom displays the current article you are reading.</p>
      <p>
        Social networking platforms such as Facebook and Twitter are
becoming distribution channels for news stories. Recently, it
appears to be a huge interest in such services with more people
getting their news stories and updates from social networks as
numbers indicate [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ]. Therefore, this kind of service could used to
develop apps that pull or leverage knowledge from users’ social
networks activities. For example, Pulse, developed by LinkedIn,
delivers personalized news from a user’s professional network.
Further, Phelan et al. [
        <xref ref-type="bibr" rid="ref24">24</xref>
        ] proposed a system, which recommends
and ranks news articles by analysing real-time Twitter data.
Apart from news apps, web portals such as Google News and
Reddit aggregate news sources and/or recommend news articles to
assist desktop end-users to find and read news more efficiently.
These systems gather information about their users either
explicitly, i.e. users give rates to articles, in the case of Reddit, or
implicitly by observing user behaviour, i.e. track user’s activity,
reading preferences, etc., in the case of Google News [
        <xref ref-type="bibr" rid="ref20">20</xref>
        ].
Although, the larger portion of news apps adopt the adaptable way
of providing personalization, the alternative is the use of adaptive
principles. Adaptive systems attempt to overcome some of the
limitations of adaptable systems by dismissing the user from
manually personalizing the system or the interface. Adaptive
systems mainly leverage prior knowledge about the user or exploit
user’s content to infer their goals and needs to automatically alter
the system’s behaviour. However, despite these potential benefits
of adaptive systems, news apps tend to adopt the adaptable
principles by letting users manually customize the content or the
interface themselves. Today, however, users are more
sophisticated interacting with user interfaces than a decade ago.
Adaptive principles could possibly work better for today’s
smartphone user interfaces. Smartphones have much more
advanced capabilities such as 3G connectivity, high-resolution
screens, sophisticated interactions with the user interface (swipe,
flick, scroll) and others. The priority in pre-smartphones era was
to deliver content but we believe users now expect more than that.
      </p>
    </sec>
    <sec id="sec-4">
      <title>2.2 News Reading Behaviour</title>
      <p>An investigation of news reading behaviour is the necessary
starting point to creating personalized news services. The news
domain is characterized by a number of particular challenges such
as finding the right stories for the right people at the right time or
presenting news stories in a way that match the particular needs of
the reader. Many studies and reports focused in analysing human
behaviour to identify patterns of news consumption, users’
preferences, and others. We believe news personalization needs a
clear understanding of how people consume news, especially on
mobile devices. Addressing questions such as how news readers
select stories to read, what reading patterns follow while reading,
is an essential prerequisite to effectively create personalized
systems.</p>
      <p>
        Liu [
        <xref ref-type="bibr" rid="ref21">21</xref>
        ] identified a new reading behaviour (named as
screenbased reading), mainly emerged with the advent of digital news
services, which is characterised by more time spent on browsing
and scanning, keyword spotting, one-time reading, non-linear
reading, and less time on in-depth reading. Recently mobile news
readers, particularly younger audiences, are exposed in a more
snackable format of consuming digital news. A recent study from
BBC R&amp;D [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ] identified the need of delivering news stories in a
quick, snappy format while also providing readers the opportunity
for in-depth reading when needed. Other data from Reuters [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ]
and Pew Research Centre [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ] revealed interesting insights about
news consumption on mobile devices. One to every five mobile
news readers tend to read in-depth news articles a study from Pew
Research Centre identified. Likewise, a Reuters Institute report
showed that more than a third of online news users across all
countries use two or more digital devices to access the news and a
fifth uses a mobile phone as their primary access point.
Summarizing these findings, it is evident that news reading,
especially on mobile devices, is a very individual activity. There
are characteristic differences amongst people in the way they
consume news, especially in younger audiences. We believe there
is potential and this diversity in news reading behaviour should be
taken into account when we design and deploy news personalized
services.
      </p>
      <p>
        Although these studies have presented interesting insights about
mobile news reading behaviour, to the best of our knowledge, no
study has attempted to categorise news readers based on particular
news reading characteristics. Categorizing users as the basis of
adaptation has been demonstrated in other domains such as the
AVANTI project for people with disabilities [
        <xref ref-type="bibr" rid="ref26">26</xref>
        ], the work
conducted by Carberry et al. [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ] for natural dialogues, the
visiting styles/categories in a museum scenario [
        <xref ref-type="bibr" rid="ref29">29</xref>
        ], and others.
This idea dates well back when Elaine Rich (1979) introduced the
idea of using stereotypes to model users and concluded that the
use of stereotypes in conjunction with the ability to record explicit
user statements about himself may provide a powerful mechanism
for creating computer systems that can react differently to
different users.
      </p>
      <p>
        In our previous research [
        <xref ref-type="bibr" rid="ref12">12</xref>
        ] we surveyed people who read the
news on their mobile phones with the aim of identifying
stereotypical patterns of news consumption. We identified three
distinct kinds of news reader (we label Trackers, Reviewers and
Dippers) distinguished by five ‘reader factors’. The five
characteristic factors included how often they read the news, how
much time they spend on reading, how they browse to find stories,
what strategy they use to read and where they read the news. For
example, Trackers are news readers who read the news many
times a day and in short bursts, they tend to skim read articles
rather read them word for word, and they read the news in
different locations. We believe this news reader categorization
could be useful for any news personalization service either
focused on recommending articles or personalizing the user
interface.
      </p>
    </sec>
    <sec id="sec-5">
      <title>2.3 Learning the User</title>
      <p>Given that we believe there are three kinds of news readers, how
would we identify an individual reader as belonging to one of
three kinds is the next step in creating personalized user interfaces
for news apps.</p>
      <p>
        Undoubtedly, any kind of personalization relies on the system
having an effective user model wherein “unobservable
information about a user is inferred from observable information
from that user” [
        <xref ref-type="bibr" rid="ref14">14</xref>
        ]. Such unobservable information may include
the user’s interests, knowledge, background and skills, goals and
tasks [
        <xref ref-type="bibr" rid="ref9">9</xref>
        ]. Observable information is collected either explicitly
through direct user intervention and/or implicitly through
monitoring user activity [
        <xref ref-type="bibr" rid="ref17">17</xref>
        ]; the latter is often preferred by users.
User models vary in the methods used for inferring unobservable
information from the observable. Rudimentary methods used for
re-ordering menus include recency and frequency scores of
command usage [
        <xref ref-type="bibr" rid="ref16">16</xref>
        ]; more sophisticated methods of user
modelling involve supervised learning techniques for inferring
preferences from interaction data [
        <xref ref-type="bibr" rid="ref19 ref8">8, 19</xref>
        ]. Some user models infer
group level user stereotypes and categories, as previously
mentioned, particularly in relation to natural dialogues [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ] and
accessible systems for users with disabilities [
        <xref ref-type="bibr" rid="ref26">26</xref>
        ]. User modelling
has also been demonstrated with mobile devices that log
interaction data, including interactions with search engines [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ] and
with web pages [
        <xref ref-type="bibr" rid="ref11">11</xref>
        ], and using function usage histories to refine
menu displays [
        <xref ref-type="bibr" rid="ref15 ref23">15, 23</xref>
        ]. Further, Billsus and Pazzani [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ] have
demonstrated the use of supervised learning methods to develop a
news recommendation system. They proposed NewsDude, which
uses a combination of algorithms to model short-term and
longterm user’s interests.
      </p>
      <p>Therefore, having a successful user modeling component that
classifies users as one of three kinds is at the core of our approach
to provide user interface personalization.</p>
    </sec>
    <sec id="sec-6">
      <title>2.4 A News App’s Personalized User Interface</title>
      <p>Our approach focuses on the idea of user interface personalization
in news apps compared to the widely applied news content
recommendation. Having an effective way of identifying user’s
news reading type, we envision a news app, which alters its
interface and interaction in response to user’s stereotypical
behaviour, i.e. offering the user to choose a variant interface that
would suit better their idiosyncratic news reading behaviour. We
propose user interface personalization through variant interfaces
for each news reader category as opposed to feature-level
adaptation.</p>
      <p>
        Much of the work in the literature has been focused on
featurelevel adaptation [
        <xref ref-type="bibr" rid="ref13 ref23">13, 23</xref>
        ], i.e. modification of specific user
interface features in response to interactions with specific
functions. An alternative approach would be to determine a
category for a user and provide a matching user interface variant.
In our previous work [
        <xref ref-type="bibr" rid="ref12">12</xref>
        ], we developed an early prototype of the
variant interfaces matching the three news reader categories. The
interface consists of two levels: the navigation and the reading.
The former consists of features related to how users interact with
the news app interface, i.e. how they browse to find stories, what
strategies they use to select stories and how frequent they access
the news. The latter includes features related to how users perform
the reading task, specifically, how stories are presented to better
match user’s reading style.
      </p>
    </sec>
    <sec id="sec-7">
      <title>3. DISCUSSION</title>
      <p>News personalization is a very specific domain that has
unaddressed challenges in providing personalized service. Much
of the work in this domain has been focused on recommending
news content, whereas personalizing the user interface has
received less attention.</p>
      <p>
        We believe that personalization of news access needs to broaden
its scope to also include not only what content users access but
also how they access and interact with that content. Mobile news
access makes the need for personalized interaction with news apps
much more apparent. This is not simply because the displays and
input are still relatively limiting, but because of the different ways
in which different users read the news with mobiles and the
different settings in which those individual users read the news.
Adaptive news navigation through reordering menus of headlines
is clearly one area of personalization of how a user accesses the
news. However, we propose that adaptation could be far more
extensive and multi-dimensional. For example, users are likely to
have idiosyncratic patterns for browsing news headlines to which
a headline display could respond dynamically and adaptively.
Interaction with mobile news is likely to vary significantly
between users in the way they browse news headlines and the way
they read news articles, for example, how much a person chooses
to read of a news article [
        <xref ref-type="bibr" rid="ref28">28</xref>
        ]. Those variations are also likely to
conform with particular profiles in the sense of stereotypical
patterns for accessing and reading news. Therefore, the idea of
recommending variant user interfaces for particular news reader
types would be suitable for this kind of personalization. Although,
one can argue about the effectiveness of this approach due to the
limitation of categorizing news readers as one of three kinds.
Human behaviour is more complex and people can fall in between
categories or behave as a different kind per day. We acknowledge
the limitations, but nevertheless, this approach is a preliminary
step to user interface personalization. Future directions may
include a more sophisticated way of identifying news readers
types or a combination of them. This also reflects the variant
interfaces design at the point of selecting features to create an
individual variant interface.
      </p>
      <p>To sum up, user interface personalization is less explored in news
services compared to news content recommendation. Despite the
adaptive features of news apps through customizations, we
believe mobile news apps are in the need of more sophisticated
ways of user interface adaptive personalization. We believe this is
the time that both news content recommendation and user
interface personalization should coincide to constitute the ideal
news personalized app.</p>
    </sec>
    <sec id="sec-8">
      <title>4. CONCLUSION</title>
      <p>In this paper we present news personalization as a
twodimensional problem, characterized by what contents users access
and how users access and interact with news content. We realize
the importance of user interface personalization in news apps and
we discuss our approach towards this direction. Our previous
work supports the feasibility of user interface personalization and
we conclude that news content recommendation and user interface
personalization should co-exist in news apps.</p>
    </sec>
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