Zero <http://wikimediafoundation.org/wiki/Wikipedia_Zero> team would like
to be more involved with the community, and discuss the functionality of
the Zero starting page.
For Zero users, when visiting m.wikipedia.org, we have to show a custom
start page tailored to the specific mobile provider. A typical startup page
has a custom banner, e.g. "Free Wikipedia provided by [Company]", and a
list of common languages in that country. The language of the page is
always set to the provider's default language.
A partner suggested that we add some additional text on the startup page,
as otherwise the page looks empty and not very inspiring. That text would
be an HTML blob, similar to the WWW page, but significantly smaller due to
most devices having a tiny screen. The text would be different depending on
the default language set by the provider, and could also differ between
various projects - Wikipedia vs Wikinews. The text would be stored on
translatewiki, with the overrides residing in the project's MediaWiki: page.
The text could be a one sentence "welcome to {{SITENAME}}", it could be
some famous quote, a news item, word of the day, link to featured article,
or anything else the community may decide to post. See sample screenshots
for Android<http://media.crossbrowsertesting.com/users/47339/screenshots/full/zf03c69c9…>,
iPhone<http://media.crossbrowsertesting.com/users/47339/screenshots/full/z219b703e…>,
iPad<http://media.crossbrowsertesting.com/users/47339/screenshots/full/zf7c8f049…>
)
What would be the best process to maintain that text? What other possible
customization would be needed to make this beneficial? Please keep in mind
that most of the users coming to this page will be directed there by the
carrier advertising Free Wikipedia, so a lot of new users.
P.S. If you think this discussion should be on
meta<http://meta.wikimedia.org/>,
please let me know of the best location.
***Registration is now open for the Wikimedia Boards Training Workshop in
London, 1-2 March 2014.***
Are you a Board member of a Wikimedia Chapter or Thematic Organisation?
Then this workshop is for you! We are drawing on expertise from within the
Wikimedia movement and beyond to produce a two-day training session which
will aim to give Board members the skills and knowledge to do a great job.
The programme and venue details for the workshop is here:
https://meta.wikimedia.org/wiki/Boards_training_workshop_March_2014
You can register for the event here:
https://www.eventbrite.co.uk/register?orderid=233759341483
Registration is open to all Wikimedia chapter / thematic org board members
but those who have, or expect to recruit, staff will gain the most out of
it. Registration costs £50, and accommodation options will cost £70 or cost
£120 per night. There is a maximum of 20 places available.
Some frequently asked questions:
* Are there scholarships?
Yes. If your chapter / organisation is not able to cover the costs, please
fill in the "Will you require a scholarship to attend?" box on the form
with an estimate of how much your travel will be. There will be a number of
scholarships on offer. All scholarships offered will cover registration,
food, accommodation and travel (no-one is expected to pay for this event
out of their own pocket). We will be in touch with everyone requesting a
scholarship within 2 weeks with a definite answer.
* What if my attendance depends on visas / being re-elected?
If you register but are unable to attend because of visa issues, or if you
leave your organisation's Board before the workshop, we will offer your
place to someone else from your chapter/organisation. Also, if you need a
visa, Wikimedia UK will help (e.g. with a letter of invitation).
* This is a great idea but is too far away from me - what can I do?
This is a first step and hopefully, if it succeeds, there will be more
similar events in future. (Hopefully not all of them will be in London or
in English, either). If you feel that training and supporting boards is
important, then you can also raise this in the calls for programme for the
Wikimedia Conference and Wikimania.
Regards,
Chris
on behalf of Wikimedia UK and the organising committee
http://m.wikipedia.org used to be a hard-coded redirect to English
en.m.wikipedia.org, except for the users in the Zero program. We now have
an ability to have complex redirection for that domain. How do you think
m.wikipedia.org should behave?
We could redirect m. to ...
* the current www.wikipedia.org, which seems to work pretty well on the
smaller device screens
* send users to the main page of the user's default language - based on the
browser settings (Accept-Language header) - and later possibly even based
on user's own language prefernces
* ...
Obviously it should be similar for other projects like wikinews, etc.
I am not a big fan of building a full blown page at the m. URL, as that
would involve much more work without a clear benefit - there are already
www and main pages available, why build another one.
Thanks!
--Yuri
[x-posted]
Hello,
The Wikimedia Language Engineering team will be hosting an IRC office
hour on Wednesday, December 11, 2013 between 17:00 - 18:00 UTC on
#wikimedia-office. (See below for timezone conversion and other details.)
We will be talking about some of our recent and upcoming projects and then
taking questions for the remaining time.
Questions and any other concerns can also be sent to me directly before the
event. See you there!
Thanks
Runa
=== Event Details ===
What: WMF Language Engineering Office hour
When: December 11, 2013 (Wednesday). 1700-1800 UTC
http://www.timeanddate.com/worldclock/fixedtime.html?iso=20131211T1700
Where: IRC Channel #wikimedia-office on FreeNode
--
Language Engineering - Outreach and QA Coordinator
Wikimedia Foundation
[pardon the cross-posting]
Hi everyone! (Important areas bolded for people who are TL;DR types[1])
As you may remember, the Program Evaluation and Design team here at WMF has
been doing evaluation of programmatic activities in the movement - with
your help! THANK YOU!
*We have released our next reporting page about our current focus programs
on meta about WORKSHOPS. *We appreciate everyone's participation so far,
and we've made improvements to the edit-a-thon page based on your feedback,
including bolding highlights for those of you who seeking a high level view
of our ongoing reporting.
*A third page is now on meta, and ready for improvement and commenting.
It's the WORKSHOPS page*, which provides information about:
- Program basics and history
- Response rates and limitations
- Reported data evaluation
- Priority goals as chosen by program leaders
- How much budget and time goes into planning workshops
- What participation is like at workshops
- Recruitment, retention, and replication details.
- Next steps (tool building, requests, support, etc)
*Feel free to improve and make edits on the talk page. And of course, if
you are a program leader/chapter that implements workshops and your data
isn't represented, please contact me to submit your data*.
*You can visit this new page here:*
*https://meta.wikimedia.org/wiki/Programs:Evaluation_portal/Library/Editing_workshops
<https://meta.wikimedia.org/wiki/Programs:Evaluation_portal/Library/Editing_…>*
We hope you find this report inspiring and helpful.
*Our next report we'll post will be about GLAM content donations*. I'll
send another email out about that soon.
Happy evaluating, and be sure to visit us on Facebook[2]
-Sarah
[1] https://en.wiktionary.org/wiki/TL;DR
[2] https://www.facebook.com/groups/programevaluation/
--
--
*Sarah Stierch*
*Museumist, open culture advocate, and Wikimedian*
*www.sarahstierch.com <http://www.sarahstierch.com>*
Books & Bytes
Volume 1, Issue 2, November 2013
by The Interior (talk =B7 contribs), Ocaasi (talk =B7 contribs)
Sign up for monthly delivery:
https://en.wikipedia.org/wiki/Wikipedia:The_Wikipedia_Library/Newsletter/Re=
cipients
Read online: https://en.wikipedia.org/wiki/Wikipedia:The_Wikipedia_Library/=
Newsletter/November_2013
Wikipedia Library Highlights
New accounts survey
TWL is in discussions with several database providers to start new
pilot programs for research account donations. Two of the largest
research database organizations in the world, EBSCO Publishing and
ProQuest, are both interested in learning which of their database
services Wikipedians would be most interested in receiving. TWL has
put together a survey to help with this, as well as gather more
general information about usage, editor satisfaction and the direction
Wikipedians would like to see their library moving in. The brief
Google Forms survey takes 5-10 minutes, and will be sent out this week
to TWL subscribers.
JSTOR expired, extended
The JSTOR pilot program, which gave 100 free accounts to top article
writers, expired this month. Thanks to Steven Walling, an extension
until the end of January was secured. Talks with JSTOR are ongoing to
keep this valuable resource available free of charge to editors. Sign
up for JSTOR.
New Metrics
New data from the Credo Partnership showed a 500% increase in links to
the site in total since the program began. With much larger numbers in
general, and a shorter time frame, the HighBeam increase of 390% as of
May 2013 is also of interest. Special thanks to Johnuniq for compiling
this data. If you are data-inclined, TWL always needs help compiling
statistics. These stats are useful not only to our current partners,
but also to encouraging prospective new partners to make donations.
Help Needed: TWL Account Coordinator
TWL is seeking a manager for the coordinated dispersal of donated
accounts. The role involves watchlisting the application pages,
vetting candidates using a fairly simple set of requirements (1 year
activity, 1000 edits on any Wikimedia projects, having email enabled
and an expressed desire to use the account for article work), and then
emailing the access codes to users. As it stands, this would be not
more 1-2 hours of work a week (though it will when new accounts are
announced). Great communication and responsiveness so that subscribers
get prompt replies to their applications is a must. If you are
interested, please get in touch with The Interior or Ocaasi. Apply to
be the new Account Coordinator.
Wikipedia Visiting Scholars
Along with the announcement of a position at George Mason University,
a second institution plans to host a Wikipedia Visiting Scholar
placement - University of California at Riverside Library.More details
on this partnership should be announced in December and over a dozen
universities are interested in attending an information session about
the program in January. Also in December, George Mason will be seeking
applications for their position. For more information on the Visiting
Scholar program, see http://enwp.org/WP:WVS. Sign up to be a Wikipedia Visiting
Scholar.
TWL presents: American Library Association's mid-winter meeting
The ALA is the largest library organization in the U.S. TWL has been
accepted to present at their mid-winter conference in Philadelphia on
January 25th from 1:30 to 3:00pm. The session will introduce academic
librarians from around the country to the role Wikipedia can play in
learning and research. We will use the session both to introduce TWL's
mission and scope, and then to kick-off the Wikipedia Visiting
Scholars program with an overview of the initiative and plenty of time
for planning and questions. Over a dozen top universities have
expressed interest in attending, which bodes very well for the future
placing Wikipedians in official research affiliate positions.
New Talk: The Future of Libraries and Wikipedia
Ocaasi gave the first presentation of The Future of Libraries and
Wikipedia to George Mason University. GMU Professor and THATcamp
coordinator Amanda French brought students and librarians together for
the event. The talk highlights the mission and pillars of Wikipedia,
the Wikipedia Library's 5 goals, and 13 to explore the question, What
if Wikipedia's was the internet's library?
Spotlight on people: Another Believer and Wiki Loves Libraries
Books & Bytes was pleased to interview two of the community's Wiki
Loves Libraries event coordinators, IJethroBT and AnotherBeliever.
This fall, both organised edit-a-thons, one in Chicago, and others in
Portland, Oregon and Vancouver, Washington. For this issue, we will
present Another Believer=92s interview. Be sure to catch the December
issue to hear about IJethroBT=92s experiences.
Another Believer is Jason Moore, a Wikipedian based in Portland,
Oregon. He works on articles on music and the arts, among other
topics, and has been editing since 2007. He has organized three
library-related edit-a-thons in the Portland area. His most recent
event was at the Vancouver Community Library.
What first attracted you to organising WLL events?
My introduction to "real life" Wikipedia activity was an invitation to
participate in an outreach project at the Wikimedia Foundation offices
in San Francisco in 2010, followed by the Wikipedia 10 celebration in
Portland, Oregon in 2011. From then on, I was hooked. I had found a
community where my obsession with research, writing and the mission of
Wikipedia required no explaining. I continued attending meetups and
networking with Wikipedians, both online and offline. It was at
Wikimania in Washington, D.C. where I received a thorough introduction
to the GLAM-Wiki initiative, which promotes collaboration between the
Wikipedia community and cultural institutions. Later that year, I was
invited to help Multnomah County Library host an edit-athon at
Portland's Central Library. The opportunity was appealing, giving
purpose for a local meetup and a way for me to trial collaborating
with a cultural institution.
In your opinion, are library edit-a-thons a good way to recruit new editors
?
Absolutely. There are always challenges with recruiting and retaining
editors, but it certainly makes sense for the largest and most popular
reference work on the Internet to collaborate with institutions that
exist to collect and make information resources available to the
public. People who visit their local libraries might be the type of
individuals who enjoy conducting research, or see value in sharing
information. Libraries and Wikipedia both have an educational
component, and partnering with cultural institutions certainly brings
legitimacy to the latter. Even with limited resources, libraries have
the ability to assist with outreach efforts and organizing meetups.
At your events, do you see more brand new editors, or editors with
some prior experience?
Events tend to attract both new and experienced editors. Often I
distribute invitations to meetups on-wiki, which obviously attracts
people who have already created accounts and have a habit of checking
their talk page, even if only occasionally. Brand new editors are
usually attracted by the institution itself, whether the participants
are curious staff, volunteers, or members of the public. Generally,
forms of outreach by the library include event listings on the website
and event calendar, on-site signage, and perhaps a regional library
newsletter.
What can libraries do to make WLL events more successful?
Offer incentives to increase traffic. These do not have to be costly
or complicated. Perhaps a behind-the-scenes tour of the library, or a
promotional partnership with another institution. For example, how
cool would it be if a library associated with an art museum offered
free admission to a special exhibit? Or a staff member offered a
private tour of the permanent collection, followed by an edit-athon
where Wikipedians wrote articles about notable artists or works of
art? There are ways to make editing interactive and fun. At the
library events I have attended, librarians have been great about being
prepared and having select resources pulled from the shelves and
available for attendees. This eliminates the need for editors to spend
time searching for materials.
You have organised several events over the years. How has your
methodology changed since your first event?
My methodology has changed little. The process begins with contact and
planning with the institution, outreach and invitation distribution to
Wikipedians and the public, and a request for educational and/or
promotional materials from the Wikimedia Foundation. It is important
to make sure the event space can accommodate a group of reasonable
size and provides enough electrical outlets. Refreshments and extra
laptops are not required, but always appreciated. The day of the
event, I greet my contact(s), set up the space, distribute materials
and generally make myself available to participants. Sometimes there
is a specific agenda, but often there are enough new contributors that
much of my time is spent answering questions, registering new users,
providing an overview of Wikipedia, and helping with first edits.My
methods have not changed, but I have learned that sometimes it can be
beneficial to market some events to experienced Wikipedians and others
to new users; mixing the two groups is never problematic, but new and
experienced contributors have different motivations for attending. A
group of experienced users can quickly generate content and
collaborate on more challenging tasks, while new users often require
lots of attention. I appreciate both groups, but recognize that mixing
them does not always create the most productive environment.
How have library staff responded to your event proposals?
Librarians have responded positively, but I must confess that for each
of the three library events that I have hosted, I was invited by the
librarians themselves. I am willing to conduct outreach, but more
often my problem is that I receive more invitations than I can
accommodate. Regardless of the method of contact, the librarians I
have worked with express an appreciation for Wikipedia and an
understanding that this online reference work is unavoidable, serving
an important purpose in our society. In each case, I felt that the
librarians trusted my abilities and appreciated my willingness to
collaborate with their institution.
Which works better a focused approach. We will work on X,Y, and Z
during the edit-a-thon. or a looser approach, Just drop by and work
on what you want to?
This is a great question, but one I find difficult to answer. Both
approaches can work well, depending on who is in attendance and the
general purpose of the event. If content generation is the goal, focus
is better. For a general meetup, or an advertised "introduction to
Wikipedia," a looser approach is more appropriate.
What are some things to avoid when hosting an event?
When I host an event, I assume the role of facilitator. I do not
dictate how the meetup should be, or set firm expectations. I would
never make anyone feel out of line for expressing their opinion, or
stupid for asking questions.
If you had one piece of advice for a new WLL event organiser, what would it
be?
Earlier this year, I was lucky enough to attend GLAM Boot Camp in
Washington, D.C., where a guest speaker expressed the following words
of wisdom that resonated with me: "one is better than none." In the
context of event organizing, this means that there is nothing wrong
with simply proposing and time and location for a meetup and then
seeing if others are willing to join. It might take a few attempts to
mobilize a small community. If I had a second piece of advice, it
would be to have a good relationship with the librarian(s) or other
contacts involved, make sure expectations are set, and align your
reasons for hosting the event.
Upcoming in December: Wiki Loves Libraries events
Open History: Queens and Wikipedia Edit-a-Thon - December 6 at Queens
Library, New York, NY
If you're hosting a library event in December or January, please add
it to collaborations page on Outreach Wiki and we'll put it in the
newsletter!
Books & Bytes Briefly
LOC considers Wikipedia's disambiguation: The Library of Congress
Subject Headings, an authoritative classification system in use in
libraries all over the world, is an ever-evolving entity. In an
article in the e-journal Library Philosophy and Practice, the author
suggests that the LCSH should adopt Wikipedia-style disambiguation
terms. Read the full article here via the University of Nebraska
Library. (PDF)
Dewey Deleted? An interesting Articles for Deletion discussion for our
article List of Dewey Decimal classes explored aspects of copyright
relating to the venerable library system. In related news, OCLC has
begun to consider broadening Dewey's license from CC-BY-NC-ND
(non-commercial, non-derivative) to CC-BY.
CC 4.0: Creative Commons, which created and maintains Wikipedia's
CC-BY-SA license, released version 4.0 of their widely used protocol.
The Open Knowledge Foundation highlighted the key changes.
OA Button Goes live: Open-Access Button, a new lightweight set of
browser extensions to highlight when readers hit academic paywalls was
released this month. You can get the button and let the world know
when journal paywalls inhibit the free flow of knowledge and research.
OAuth released: The Wikimedia Foundation finished it's implementation
of OAuth. This has big implications for TWL research access
integration, because it would let editors sign into third-party
websites using only their Wikipedia login. The WMF blog the details.
TWL Logo? A discussion was started about a TWL Logo, thinking about
adapting existing community logos or starting from scratch. TWL would
like to host a new logo competition in the next few months. Please
join the discussion.
December GLAMOUT: Wikipedia's GLAM consortium is hosting an online
discussion Friday, Dec. 6 at 3pm (EDT). There is one spot left to
participate, and anyone can listen in through Google Hangouts.
The Wikipedia Adventure game goes beta: A new game which teaches how
to edit Wikipedia in about an hour was released this week. TWA may be
useful to librarians, education classes, and editathons as a friendly
and interactive introduction to Wikipedia's technical, social, and
policy best practices.
Diversity Conference in Berlin: Hosted by WMDE, the event kicked off a
global push to add Diversity to Wikipedia contributors and content at
the first ever Wikimedia Diversity Conference. WMF blog has a nice
overview of the event. You can sign on to the intiative at
Meta:Diversity. TWL is always interested in ways to broaden our
community and our content with better outreach and research.
Free textbooks: ChemWiki, a program to create free and open chemistry
textbooks received a grant of $250,000 from the National Science
Foundation. The site nets over 2 million visitors a month.
Open access and museums: The Mellon Foundation published Images of
Works of Art in Museum Collections: The Experience of Open Access A
Study of 11 Museums.
Further reading
There's lots of great digital library information online. Check out
these neat resources for more library exploring.
The Digital Shift: http://www.thedigitialshift.com
In the library with the lead pipe: http://www.inthelibrarywiththeleadpipe.o=
rg
Code4Lib: http://code4lib.org/
Digital Public Library of America: http://dp.la
The Wikipedia Library
partners
Credo
HighBeam
Questia
JSTOR
Cochrane
OCLC
resources
Reference Desk
Resource Exchange
Resource Guides
Book Sources
Online archives
wikiprojects
Libraries
OA
Bibliographies
Books
Journals
Citation
Unreferenced
Fact check
outreach
Wikipedia Loves Libraries
GLAM
WMF Grant
Thanks for reading! To receive a monthly talk page update about new
issues of Books and Bytes, please add your name to the subscriber's
list: https://en.wikipedia.org/wiki/Wikipedia:The_Wikipedia_Library/Newslet=
ter/Recipients
To suggest items for the next issue, please contact the editor, The
Interior at https://Wikipedia:The_Wikipedia_Library/Newsletter/Suggestions.
-Jake Orlowitz (Ocaasi)
@JakeOrlowitz
jorlowitz(a)gmail.com
Somehow, I don't know how we get that happen, almost every time we use live communication to communicate about projects to enrich and improve the Wikimedia projects, something goes wrong in the communication. Besides the usual problems of connecting to the internet, a lot of software issues occur, then we have a microphone of someone that doesn't work in only one software programme, while it works in others, or we don't get sound out of the programme, programmes that need an account but refuse you to sign up. From Google Hangout, Skype to Mumble, all have issues.
I think it would be lovely to have a piece of software maybe hosted by WMF that works for everyone to enable everyone to participate. Currently users are excluded because of insufficient software and it takes too much time to get everything working. The key of the Wikimedia projects is that everyone can participate, besides when it comes to live communication.
Greetings,
Romaine
Dear all,
The next WMF metrics and activities meeting will take place on Thursday,
December 5, 2013 at 7:00 PM UTC (11 AM PST). The IRC channel is
#wikimedia-office on irc.freenode.net and the meeting will be broadcast as
a live YouTube stream.
The current structure of the meeting is:
* Review of key metrics including the monthly report card, but also
specialized reports and analytic
* Review of financials
* Welcoming recent hires
* Brief presentations on recent projects, with a focus on highest priority
initiatives
* Update and Q&A with the Executive Director, if available
Please review
https://meta.wikimedia.org/wiki/Metrics_and_activities_meetings for further
information about how to participate.
We’ll post the video recording publicly after the meeting.
Thank you,
Praveena
--
Praveena Maharaj
Executive Assistant to the VP of Engineering and Product Development
+1 (415) 839 6885 ext. 6689
www.wikimedia.org
Hi everyone,
Earlier today Wikimedia Israel held its General Assembly. The Assembly
elected 3 new board members and one member for the audit committee.
In July 2013, the General Assembly authorized the board to extend the board
with two board members from outside the community. These two members aimed
to strengthen the board’s professional capabilities, bringing a new and
fresh take on processes and activities, and contributing from their
extensive connections and experience.
I’m proud to introduce our new board members and audit committee:
Prof. Karine Nahon <http://ekarine.org/about/>: an associate professor at
the Information School (University of Washington), faculty adjunct at the
department of Communication, affiliated faculty at the Center for
Communication and Civic Engagement and former director of the Center for
Information & Society in University of Washington. Currently, she co-chairs
the Digital and Social Media track at HICSS. She as an expert in
decision-making forums (nationally and internationally) and is publicly
active on topics of open government. She acts as a member of the Israeli
CIO (Chief Information Officer) Cabinet, member of the board of the Freedom
of Information Movement, and board of the Workshop for Open Knowledge. She
represents Israel in the UN in the committee for science and technology.
Prof. [[Sheizaf Rafaeli <https://en.wikipedia.org/wiki/Sheizaf_Rafaeli>]]
is Professor and Dean at the School of Management (Graduate School of
Business Administration) Haifa GSB, University of Haifa Israel and
additionally Founder and Director of the Sagy Center for Internet Research
and the Games for Managers Project. He has been writing in the popular
press for the Globes and Calcalist financial and business newspapers, and
for YNet, a leading news portal, where he has published hundreds of weekly
columns. Over the past twenty five years he has taught courses on computers
as media, and the social implications of new communication technologies, as
well as numerous Information Systems' courses. Wikimania 2011 attendees
were perhaps remembering him as the host of the opening event :).
Shani Evenstein decided shorten her term as a board member, and the GA
appointed Ido Ivri, who was a member of the audit committee, to replace her
in the board till the next board election.
Shani joined Wikimedia Israel after Wikimania 2011 in Haifa. She is a live
proof of the contribution of Wikimania to a local chapter. She immediately
began to develop the GLAM awareness in Israel, and successful created the
connections and lead all of WMIL's GLAM collaborations, among them our
successful cooperation with the Israeli Museum and the National Library.
Her dedications to the movement and to the chapter were not limited to the
GLAM projects and her touch was in many of Wikimedia Israel activities over
the last few years. The Assembly and the board are thanking her for her
dedication, energy, thoughts, ideas and her special contribution to WMIL.
Ido Ivri, who will replace her on the board, is the Manager of Business
Development and Innovation at the National Library of Israel, in the office
of the Library's Executive Director. Ido is an open source/open content
enthusiast, and has been a volunteer in Wikimedia-IL since 2011. He holds a
B.Sc in computer science from the Hebrew University, and currently studying
for an MBA in the Recanati Executive program in Tel Aviv University.
Also, the Assembly decided to accept the board recommendation and to select
external member of the community, Adi Zamir, as a member of the Audit
committee - a step that will increase the ability of the committee to
monitor and make external and independent review of the organization
activities, as part of the professionalism steps of Wikimedia Israel.
Adi Zamir has education and experience in various fields. She is a Senior
Project manager, Training and organizational consultant for CEO's and
lecturer at the academic college of Tel aviv–Yafo. Adi's brings to the
audit committee her varied experience.
We please that Prof. Rafaeli, Prof. Nahon and Ms Zamir agreed to join our
community and support our vision. We have no doubt they will be a major
force in the organizational development of WMIL and a great contribution to
the movement in general.
Regards,
Itzik Edri
Chairperson