人体七大营养素是什么| 职业年金是什么| 鹅口疮用什么药效果好| 卡罗莱手表是什么档次| 1级高血压是什么意思| 晚上七点多是什么时辰| 社会公德的主要内容是什么| 口舌是什么意思| 胸长什么样| 头皮屑多的原因是什么| 5月30号是什么星座| 成都人民公园有什么好玩的| 报仇是什么意思| 孩子感冒发烧吃什么药| 九牛一毛什么意思| 闪购是什么意思| 女儿茶属于什么茶| 梦见桥断了有什么预兆| 腋窝淹了用什么药| amber是什么意思| 春天有什么水果| 月经咖啡色是什么原因| 九月初六是什么星座| 螃蟹为什么横着走| 什么叫心悸| 不为良相便为良医是什么意思| 指甲盖有竖纹是什么原因| 月经不来是什么原因导致的| 失心疯是什么意思| 儿童哮喘挂什么科| 怀孕吃辣对胎儿有什么影响| 坐阵是什么意思| 什么是对冲| 木瓜不能和什么一起吃| 为什么同房会痛| 为什么叫中日友好医院| 悦字属于五行属什么| 6月12日什么星座| 一什么阳光| 新生儿吃什么钙好| 什么是社会考生| 伤寒病有什么症状| 青春痘用什么药膏擦最好呢| 人见人爱是什么生肖| 嫑怹是什么意思| 盆腔镜检查是查什么的| 白羊歌词是什么意思| 早日康复是什么意思| 为什么会长水泡| 小猫感冒吃什么药| 2017年属什么生肖| 白细胞高是什么意思| beacon什么意思| 什么生| 蝙蝠是什么类动物| 什么是腺肌症| 补办护照需要什么材料| 一什么枣| 蟊贼是什么意思| 肾与性功能有什么关系| 陈字五行属什么| 咽喉异物感吃什么药| 浮肿是什么原因造成的| 嗓子有点疼吃什么药| 家里养什么宠物好| 辗转是什么意思| 吃什么有助于长高| 女生右眼睛老是跳是什么原因| 附件炎是什么引起的| 牛肉和什么蔬菜搭配好| 氧化钠是什么| 手指关节发黑是什么原因| 人心叵测是什么意思| 脑筋急转弯什么东西越洗越脏| pickup是什么意思| 紫涵女装属于什么档次| 西安和咸阳什么关系| 纯棉是什么面料| 什么堂大什么| 石斛有什么功效| 孕妇吃西红柿对胎儿有什么好处| 寡糖是什么糖| 狗狗拉稀是什么原因| 春天有什么花开| 网球肘用什么方法能彻底治好呢| 阴虚阳亢是什么意思| 有炎症吃什么药| 新疆人是什么民族| 前胸后背长痘痘是什么原因| 27岁属什么| 贤淑是什么意思| 鹿的角像什么| 4月19号是什么星座| mpa是什么意思| 总是睡不着觉是什么原因| 让心归零是什么意思| 劳热是什么意思| 女性体毛多是什么原因| 干咳吃什么药好| pu皮是什么材质| 低密度脂蛋白胆固醇偏低是什么意思| 一月7日是什么星座| 长目飞耳是什么动物| editor是什么意思| 肉质瘤是什么东西| 超声波检查是什么检查| 早孕试纸什么时候测最准| 男人好难做人好难是什么歌| 小肚子胀疼是什么原因| 嗜酸性粒细胞偏高是什么原因| 老年人嗜睡是什么原因| 长期服用丙戊酸钠有什么副作用| 卡号是什么| 月字旁的字与什么有关| 继承衣钵是什么意思| 得宫颈癌的前兆是什么| 什么虫子有毒| 什么服务| 梦见男朋友出轨了是什么意思| gap是什么品牌| 香港身份证有什么好处| 什么是横纹肌肉瘤| 身上冷是什么原因| 孕妇为什么不能参加婚礼| 属牛男和什么属相最配| 脸发红发烫是什么原因| 生姜黄叶病用什么药| 胃粘膜脱落什么症状严重吗| tpp是什么意思| 一孕傻三年是什么意思| 蛆长什么样子| 五百年前是什么朝代| 无异于是什么意思| 澳门有什么特产| 防是什么生肖| 孩子磨牙是什么原因| 傲气是什么意思| 吃鱼眼睛有什么好处| 电波系是什么意思| 豺是什么动物| br什么意思| hpv是什么病严重吗| 大自然是什么意思| 条件反射是什么| 心脏超声检查是什么| 女真人是什么民族| 准备要孩子需要注意什么| 泛是什么意思| 刚愎自用代表什么生肖| 凯字五行属什么| 什么 姿势 最深| 八败是什么意思| 李耳为什么叫老子| 现在领结婚证需要什么| 去减一笔变成什么字| 4月7号是什么星座| 小孩肛门瘙痒什么原因| 头痛到医院挂什么科| 例假不能吃什么水果| 12月11日是什么星座| 老年痴呆挂什么科| 七月11日是什么星座| 什么颜什么色| 急性乳腺炎是什么原因引起的| 花生碎能做什么食物吃| 脉沉是什么意思| 今天过生日是什么星座| 什么是蒸馏水| 绿豆什么时候成熟| 男人鼻头有痣代表什么| 什么是性病| 维生素ad和d3有什么区别| 什么消炎药最好| 有恙是什么意思| 闭塞是什么意思| 青少年额头长痘痘是什么原因| 知性是什么类型的女人| 喜欢放屁是什么原因| 六月份种什么菜| 三进宫是什么意思| 平板撑有什么作用| 胸腔积液是什么原因造成的| 男人吃什么可以补精| 静脉炎吃什么药好得快| 金瓜是什么瓜| 解酒喝什么最好| 维生素D有什么食物| 茄子不能和什么食物一起吃| 劫煞是什么意思| 伏案工作是什么意思| 白条鱼是什么鱼| 痛风急性期吃什么药| 喜大普奔是什么意思| 手抖是什么病| 咽喉炎 吃什么| 婴儿长牙有什么症状| 打牌老是输是什么原因| 早上6点半是什么时辰| 打喷嚏流鼻涕吃什么药| 唇炎应该挂什么科室| 世界什么名| 吃西洋参有什么好处| 什么的老虎| 刺梨果有什么功效| 平均红细胞体积偏高是什么意思| 挚友是指什么的朋友| 伏特加兑什么好喝| 粗脖子病是什么原因引起的| 阳痿吃什么药好| 为什么手会发麻| 早晚体重一样说明什么| 痔疮什么样子图片| 疤痕憩室什么意思| 双手麻是什么原因| 赫拉是什么神| 1953年属什么生肖| 无机磷偏低有什么影响| 叩首是什么意思| 肠炎能吃什么水果| 眉毛少是什么原因| 4.9是什么星座| 空调不制冷是什么原因| 芊字五行属什么| 1是什么| 木屐是什么意思| 排卵日是什么时候| 装孙子是什么意思| 室性早搏是什么意思| 吃什么药可以推迟月经| 邪魅是什么意思| 撤退性出血什么意思| 首套房有什么优惠政策| 已佚是什么意思| 册那什么意思| 1938年中国发生了什么| 河南古代叫什么| 一月出生是什么星座| 什么流砥柱| 仁义道德是什么意思| 草酸是什么| 突然头晕是什么原因| 什么的太空| 什么样子| 南昌有什么好吃的| 西瓜可以做什么饮料| 臭嗨是什么意思| 右耳痒是什么预兆| 阿司匹林有什么副作用| 是什么符号| 支气管哮喘是什么原因引起的| 蛋白粉吃多了有什么危害| 什么红什么绿| 贵州有什么山| abi是什么意思| 小名是什么意思| 鲜牛奶和纯牛奶有什么区别| 为什么睡不着| 颈肩综合症有什么症状| 醪糟发酸是什么原因| 尿酸高吃什么菜| 感觉抑郁了去医院挂什么科| 区长是什么级别| 白垩纪是什么意思| 楼房风水主要看什么| 百度 Skip to main contentSkip to navigationSkip to navigation
Library
Photograph: Greg Hinsdale/Corbis
Photograph: Greg Hinsdale/Corbis

北京3·17房地产市场调控满周年:市场成交量价齐跌朝阳区

This article is more than 16 years old
Finding a book at your local library should just involve a simple web search. But thanks to a US cataloguing site, that is far from the case

This article was amended on Friday 30 January 2009.

In the report below we misrepresented a new record use policy being promulgated by the Online Computer Library Center (OCLC), which aggregates library records and makes them searchable online through its WorldCat database. The policy does not, as we said, restrict libraries' ability to make their own collections and records available for public search and indexing by search engines; the policy applies to WorldCat records. The article also said the OCLC shares only 3 million of its 125 million records with Google Books. In fact, the OCLC shares its full database with Google, including Google Books. The Google search algorithm determines whether or not a WorldCat record appears in a set of search results. The article quoted a claim that OCLC has tried to obstruct the growth of the website OpenLibrary.org. OCLC was not given the opportunity to respond to the claim and denies it. OCLC said they remain optimistic that the two organisations can work together.

Despite the internet's origins as an academic network, when it comes to finding a book, e-commerce rules. Put any book title into your favourite search engine, and the hits will be dominated by commercial sites run by retailers, publishers, even authors. But even with your postcode, you won't find the nearest library where you can borrow that book. (The exception is Google Books, and even that is limited.)

That's strange, because almost every library has an electronic database of its books - searchable either at the library's own website or via its local council. The wrinkle is that at the book level, those databases aren't accessible to the search engines; and you may not be able to search all the libraries in your area at once.

Bibliographic data

Yet there is an alternative that few people seem aware of: Worldcat (worldcat.org), which offers web access to the largest repository of bibliographic data in the world - from the 40-year-old Ohio-based non-profit Online Computer Library Center (oclc.org). But Worldcat suffers from the same problem on a larger scale. OCLC shares only 3m of its 125m records with Google Books; none of them show up in an ordinary search.

You might expect forward-thinking libraries to put their databases online, to encourage people through their doors. But they can't. Even though they created the data, pay to have records added to the database and pay to download them, they can't.

In November, OCLC announced new rules covering the use of Worldcat data due to go live on 19 February.

"It's safe to say that the policy change is a direct response to Open Library," says Aaron Swartz, the founder of Open Library (openlibrary.org), a project to give every published book its own Wikipedia-style page. "Since the beginning of Open Library, OCLC has been threatening funders, pressuring libraries not to work with us, and using tricks to try to shut us down. It didn't work - and so now this."

Open Library is one of several projects aiming to bring book data into the internet age. LibraryThing (librarything.com), for example, lets users share the contents of their libraries; if you and I have favourite books in common, maybe the other books you have are ones I'd like. Under OCLC's new policy, would libraries be unable to share their data with these projects?

Karen Calhoun, the vice-president of OCLC WorldCat and metadata services, believes it's important for OCLC - whose annual revenues, as of June 2008, were $246m (£175m), and which in recent years has bought several smaller commercial competitors in Europe - to be the only big kid on the block, and to ensure that "the WorldCat commons is not exhausted through over-exploitation. Protecting the commons means adopting 'some rights reserved' as the data-sharing model."

Over-exploitation, she says, would be "to have lots of these stores in different places on the web that disperse the information and we don't have a way to connect it all back up again".

Besides, Calhoun adds: "Trying to operate on web scale on behalf of libraries really does take a businesslike approach." Local libraries, she says, are too small to do their own negotiating.

Yet millions of website owners and bloggers do not negotiate with Google to have their sites crawled and available on results pages. Open Library's 1m records have open APIs and are available for download as a single data dump. There is even a plug-in for WordPress that lets bloggers automatically integrate a link to the Open Library page of any book mentioned.

"The library world is set up on this model where the library is a physical building and has a number of books and serves a geographical community," says Swartz. "Our model is find the book you're interested in and give you the metadata - and then find the best way to get it to you."

In the politely acrimonious debate that has followed OCLC's announcement, WorldCat's copyright status was raised. In the US, collections of facts don't get copyright protection. In 1998 the EU created "database right" - but individual records can't be copyrighted. Those suspicious that OCLC is attempting a power grab believe uncertainty over copyright law may be behind the new policy: if OCLC can't rely on intellectual property law, a contract - the new policy - is its only choice.

Calhoun says OCLC's legal department is still researching the copyright question, explaining that courts have in the past considered "sweat of the brow": creating a bibliographic record, she says, requires intellectual effort and judgments by trained personnel.

Changing world

Richard Wallis, a technology evangelist at Talis, which competes with OCLC in interlibrary lending systems in Europe, thinks OCLC's main problem is that it has not kept pace with the changing world.

"They're still stuck in the wrong business model," he says. "It was expensive, 20 or 30 years ago, to set up a large dataset and communications, editing, storing backup tapes, and so on." By now, though, "a lot of the things that made it difficult are negligible costs". Talis, he says, focuses on selling services, not access to data.

Enough people have protested for OCLC to convene a review board and delay the planned 19 February implementation. However, few expect a change of heart.

What we don't know - because we've never had the data to experiment with - is what opportunities we're being denied. The National Library of Sweden has put its entire catalogue on the web as linked data, the first effort by a national library to become part of the semantic web. It should have been the second: US Library of Congress staffer Ed Summers was told to take down his similar experiment in December. Karen Coyle, a librarian and consultant on digital libraries, says: "If library records were open access on the web, it would be possible to create bibliographies that go beyond the holdings of any one library."

She points to Kosovo, where libraries have been destroyed in generations of conflict. Open records, she says, "could create a virtual library of books published in that geographical region, which would allow scholars to study the literature and history of that area in a way that isn't possible today with our separate, physical libraries." Rob Styles, a programme manager for Talis's data services, says: "The main reason I think libraries need freedom to innovate is because we don't know what they're going to look like".

Explore more on these topics

Most viewed

Most viewed

大疱性皮肤病是什么病 孺子可教也什么意思 3.1号是什么星座 为什么脚会脱皮 什么叫市级以上医院
海鲜都有什么 甲胄是什么意思 6.8什么星座 胃痉挛有什么症状 免疫球蛋白g是什么意思
68年属什么生肖多少岁 猪胰是什么东西 涵五行属什么 五月21号是什么星座 木丹念什么
暇步士是什么档次品牌 脱敏什么意思 吃什么补黄体酮 大便黄绿色是什么原因 三亚是什么海
吃什么对胆囊有好处hcv8jop2ns7r.cn 没有痔疮大便出血是什么原因hcv8jop7ns7r.cn 鱼子酱是什么hcv8jop3ns3r.cn 今天过生日是什么星座hcv8jop9ns7r.cn 什么水果利尿效果最好hcv9jop8ns2r.cn
大智若愚什么意思hcv7jop6ns1r.cn 幼儿急疹为什么不能碰水hcv9jop2ns8r.cn 神夫草抑菌乳膏主治什么luyiluode.com 管医院的是什么部门zhiyanzhang.com j是什么mmeoe.com
洁颜蜜是什么hcv8jop4ns2r.cn 血压低有什么症状表现hcv9jop8ns0r.cn 为什么会有床虱hcv9jop8ns0r.cn 碧是什么颜色hcv8jop5ns2r.cn 什么花有毒hcv8jop3ns6r.cn
做奶茶用什么茶叶hcv8jop5ns0r.cn 孩子高低肩有什么好办法纠正hcv8jop3ns6r.cn 皮癣用什么药膏hcv8jop5ns9r.cn 驼背挂什么科hcv8jop5ns5r.cn 噩耗是什么意思hcv9jop7ns2r.cn
百度