Nigel, from Somerset, decided to become a foster parent aged in his 80s after his wife died.

Truro City extend Christian Oxlade-Chamberlain’s loan from Kidderminster Harriers until 31 January.

Isobel, from Congleton, will be performing as part of the Children In Need choir on Friday.

The plans to bring in charges led to protests in some areas and outside council meetings.

Watch highlights as a Kyle Wootton goal in extra time gives League One Stockport County a narrow victory over National League high-fliers Forest Green Rovers in the first round of the FA Cup.

Spin bowling all-rounder Zafar Gohar signs a two-year deal with Middlesex following his departure from Gloucestershire.

Exeter Chiefs returned to the top of the Premiership Women's Rugby league after hammering Loughborough Lightning 40-19.

The event is designed to show how the joy art can bring people.

Police want to hear from anyone who witnessed the sex assault, which happened last month.

Dzhamilya Timaeva, 19, from Windsor, gained a place at an Islamic Sunday school, a court has heard.

In November 1918, more than 100 German U-Boats surrendered to the allied forces.

St Andrew's Junior School in Hatfield Peverel might not be completely rebuilt until 2028.

Shaz Saleem, 38, denies two charges of sending threatening messages on an electronic device.

The HSE confirms the sealing of the borehole is now complete and that the cement has cured.

Josh Cobb departs Worcestershire after one-season stay on white-ball contract, while Olly Cox also exits.

The high-end store has apologised for not hosting Paralympic athletes alongside Team GB Olympians.

People living nearby may hear the emergency siren and the site is likely to be in lockdown.

The government will boost pensions of ex-miners on the MPS scheme, leaving out those on the BCSSS.

Nick Bailey reveals what it’s like to be poisoned by Novichok.

The Right Reverend Stephen Conway faces calls to stand down over the John Smyth abuse scandal.

Artificial Intelligence (AI) is changing how user experience design is handled across various industries by playing a vital role in developing tailored and seamless experiences for users. Starting from app […]

The post How AI is Transforming User Experience (UX)  appeared first on Tech Digest.

“A leader is one who knows the way, goes the way and shows the way,” - John C Maxwell, best-selling author, speaker and coach.

Genuine thought leadership is a powerful differentiator for any business.

Articles and reports that demonstrate true expertise, authority and insight stand apart from your competitors’ me-too blah-blah. They build trust, enhance your brand, help close deals and defend your margins.

High-quality content also avoids the Google penalties that come with spammy or AI-created content. Don’t take our word for that, here’s what Google has to say about creating helpful, reliable, people-first content. (See our take on AI in marketing too.)

What is high-quality content?

Thought-leadership copywriting provides unique insights, presents new research and uses data. It covers complex subjects in a new and engaging way. It is designed to expand readers’ understanding. It manages to be persuasive but not pushy.

Everyone can write, but not everyone is a writer. High-quality marketing content requires expert copywriters. (Read more about what a copywriter actually does.)

To get it right, writers require a deep understanding of their audiences, clients, products, the wider context of the industry, and the current shape of the market. For businesses embracing thought-leadership content, that’s where the true value lies.

But you have to invest time, money and marketing effort to realise this value. That can be challenging when business leaders and decision-makers can’t see the return on investment (ROI).

Let’s explore the ROI of copywriting and thought leadership to help you build a business case for their value.

What are the likely costs of copywriting and thought leadership?

The short answer? It depends. The long answer? There’s no one-size-fits-all cost and most writers will offer packages or tailored pricing. According to a study by Clutch, the average UK digital agency charges approximately £98.10 per hour. Research by DDIY suggests that a monthly content marketing retainer can cost between £1,805.78 and £23,551.50.

Of course, an hourly rate doesn’t tell you much about how long something will take or the required level of expertise needed to do an outstanding job.

That’s why, at Articulate, we charge for copywriting on a fixed price basis related to the length and complexity of the piece.

For maximum transparency and flexibility, we have a tariff—a kind of menu—of common writing deliverables such as case studies, white papers, or thought leadership articles. Our fixed prices include research, interviewing, writing, project management, editing, proofreading two rounds of revisions (if required), keyword optimisation, and, for blog articles, meta descriptions, a featured image and a couple of social posts.

Our marketing retainers start at £4,100 per month and one-off copywriting projects start at £5,000 for things like a case study library or a lead generation campaign centred around a flagship report or ebook.

We charge for website copywriting slightly differently, on a per-word basis, because of the additional complexity of integrating it with design, search engine optimisation and the rest of the development process. Also, in our experience, writing website copy for clients is like writing poetry and demands a high level of experience and client knowledge for your most important marketing asset.

Broadly speaking though, the cost of a content project will vary depending on the following factors: the who, the what, the when, the where and above all, the why.

The Who

Freelance copywriters and marketing agencies will charge different prices because, of course, their overheads and offerings are different. An agency may cost more but brings benefits such as editing, additional skills (e.g. SEO, research), better availability and turnaround times.

Then there are factors such as years of experience, location, specialisations and so on. You might also consider an in-house or staff writer who will require a competitive salary.

There are specific skills required to be a good marketing copywriter, including:

• Marketing know-how
• Business, sector and client knowledge
• Interviewing skills
• Research and analytical skills
• Search engine optimisation, e.g. writing with keywords
• Agility with tone of voice and messaging
• Self- and pair-editing
• Proofreading
• Social media writing skills
• Content planning and ideation

It’s helpful to put a good marketing copywriter with a reasonable level of skill and five or more years of experience in the same bracket as, say, a lawyer or an experienced, professional journalist writing for a trade magazine or reputable newspaper.

Typically, in an agency, they will work in teams that provide complementary skills and coverage for illness or holidays. All of this is hard to replicate in-house. (For more on this see our article: Should you hire a marketing person or a marketing agency.)

The What

The nature of your business and its content can impact how much copywriting will cost you. For technical or niche businesses, you’ll need to work with writers who understand your industry thoroughly or who have the skills and processes in place to learn about it efficiently.

You might not need to work with specialists if your company wants more generic content. But generic isn’t going to cut through the noise. Similarly, the length of your copy will affect the price, too. Some providers charge per project, others per word.

The When

How quickly and how often do you need copywriting and thought leadership content? Time-sensitive projects may incur additional costs to help you meet deadlines. And the more content you need, the more it will add up. A freelancer will struggle to produce tens of thousands of words in a short period of time but an agency can bring a whole team and a well-oiled production process to the challenge. You can, however, explore these helpful tips from the Articulate Marketing team on how to make every piece of content work harder for you.

The Where

Where are you posting, hosting or submitting the writing? The platform will impact the word count and, in turn, the price. A detailed report, an eBook or a long-form pillar page will set you back more than a 750-word blog post for your company website, for example. Similarly, copy for your home page might be short but it is very important and getting it right might take longer and cost more on a per-word basis than a more general piece.

The Why

Here’s where it gets interesting. You might know who you want to work with, what you want them to produce, when you need it and where it’s going. But do you know why you’re doing it? Have you considered who you want to read your thought-leadership content? And what you want them to do once they’ve read it?

From top-of-the-funnel content for brand awareness and lead generation to bottom-of-the-funnel content for conversions or customer retention, your copywriter needs to know what role your content plays in the context of your wider business.

In our opinion, the ‘why’ separates good writers from bad ones — and both kinds from the likes of ChatGPT. This is why we call our writers ‘marketing copywriters’ because they understand how to weave their work into broader marketing objectives.

So, what’s the ROI of copywriting and thought leadership?

Whether you choose to go external or in-house, there’s significant value in investing in the art of copywriting. Here’s why.

Demonstrate relevance and expertise

A study by Edelman and LinkedIn found that 73 percent of decision-makers say an organisation’s thought leadership content is more trustworthy for assessing its capabilities than its marketing materials.

The same study found that 80% of respondents want to see third-party data included in it, and 44% believe the highest-quality content helps them better understand a business's challenges and opportunities.

Decision-makers want to know why they should work with you. And your knowledge, experience, and expertise are your differentiators. The ROI? As many as 60 per cent of decision-makers say they’re willing to pay a premium to work with a business that produces good thought leadership.

Establish your brand and raise your profile

While thought-leadership and content marketing materials are busy showcasing your expertise, they’re also putting you on the map. Readers get to know your brand and tone of voice (TOV). Decision-makers may even share your content online, quote your research in their content, and reference your work conversationally.

The front of a buyer’s mind is a powerful place to be. Especially when we consider that 70 percent of C-suite executives said thought leadership content made them question their current B2B relationships — with 54 percent realizing other vendors might better understand their needs, according to a study by Edelman and LinkedIn.

Reach new audiences

A key part of establishing your brand with thought leadership is connecting with new audiences. Businesses often have a clear idea of who they want to work with and who wants to work with them. But growing your brand presence with thought leadership content means you’ll start to appear in new places online.

For example, when Basecamp founder Jason Fried tweeted about his company’s new ad, which called out Google’s paid ad strategy, he subsequently received over 1,000 backlinks to the company’s website. Depending on how you value backlinks, that could be worth up to $500,000 in SEO benefits.

This kind of thought-leadership content will help you rank for new search engine queries, generate more backlinks, appear in different social media feeds and so on. You might even find that your successful written content creates entirely new opportunities for you — podcast appearances, webinar invitations, the chance to speak at industry events and so on.

Build existing customer loyalty

Your written content doesn’t just serve the purpose of attracting new audiences. It’s a valuable tool for staying connected to your existing customers (and re-connecting with previous ones, too).

According to Accenture, 80 percent of businesses spend less than a third of their time and budget on customer-focused messaging. This presents a clear missed opportunity when considering loyal customers' ROI.

On average, a loyal customer is worth up to 10 times the value of their original purchase, according to the Office of Consumer Affairs. And, Bain and Co found that increasing customer retention by two percent has the same impact as reducing costs by 10 percent. Remember: the grass is greener where you water it!

Content is still king

Powerful, engaging, well-written thought leadership content has a functional role to play, too. Of course, establishing your brand, growing your audience, and giving your customers something to talk about are important. But high-quality written content is necessary to get discovered online. For example, brands that regularly update their blog get 67 percent more leads than those that don’t, according to Absurd Insights.

Similarly, search engines are starting to prioritise the quality of the content they promote to users, cracking down on misinformation, clickbait, spam, and AI-generated content. For example, Google looks for content showcasing experience, expertise, authority, and trustworthiness. This is called E-E-A-T content and thought leadership is precisely the kind of writing that reflects these crucial areas.

Recent Google updates penalise companies that fill up their site with cheap AI-generated SEO content. This tactic is just empty calories and now it’s creating marketing heart attacks for companies that tried it. The need for high-quality EEAT content has never been higher.

The final word

The ROI of thought leadership is going to take a lot of work to prove. That’s because it’s about more than just numbers. It’s about value. An AI-generated blog post will save you time and probably be fairly accurate. It may even generate a small amount of traffic (before Google recognises it as AI and penalises you for it, that is). But well-written thought leadership is a conversation starter. It’s the kind of content people are still thinking about after they’ve logged off. It makes potential customers think — and start questioning whether they’re working with the right providers. It’s full of insight, personality, colour and expertise. You can’t put a price on that.

There are three chess grandmasters in south west who remain at the top of their game

When Ariana Grande wrote “could get it again” next to Big Sean’s picture in her “Thank U, Next” video, she might not have been joking. The two were spotted hanging out yesterday, and maybe they were recording new music, maybe she was bouncing back to that dick, or maybe both. While ex-fiance Pete Davidson has […]

The post Ariana Grande Spotted with Ex, Big Sean appeared first on HecklerSpray.

Which? research has found evidence of excessive smart device surveillance – from air fryers demanding permission to listen in on your conversations and sharing data with TikTok, to TVs wanting […]

The post Is my Air Fryer spying on me? Evidence of excessive smart home surveillance appeared first on ShinyShiny.

The Telegraph have now printed an extract and the first interview about The Sex Myth. Positively chuffed to see "be an ally" in print. (Especially on Friday the 13th, which is fast becoming the date when sex work allies are urged to speak out.)

If you'd like to find out more about the book, and would like your copy of The Sex Myth signed, why not join me in London or Nottingham next week?

UPDATE: MSPs have voted that Grant's bill will have to go to consultation and will not be fast-tracked. Which is good news. But the fight is not over, and expect more to come when the consultation hits.

At the same time that the Moratorium 2012 campaign kicks off in London, spearheading a common-sense approach to sex work, there appears a bid in Scotland to try to make prostitution illegal. Just to recap: soliciting, running a brothel, and kerb crawling are already illegal (as too are trafficking and sexual exploitation of children). Exchanging sex for money at this point is not. Not yet.

Labour MSP Rhoda Grant claims "Scotland should become an unattractive market for prostitution and therefore other associated serious criminal activities, such as people trafficking for sexual exploitation, would be disrupted." Grant is, unfortunately, badly informed and wrong. I'm going to keep this one short and sweet because the points are pretty straightforward...

Scotland does not have a sex trafficking epidemic

Sex trafficking is the excuse frequently given these days to harass and criminalise sex workers. Problem is, it's not remotely the "epidemic" they would have you believe. If you're not already up to speed on the whys and wherefores, I highly recommend reading Laura Agustin's work on this. Or if I may be so cheeky to suggest you could also buy my book. 

Specifically, it is not happening in Scotland.  “In Scotland, to the best of my knowledge, we don't have a conviction for human trafficking,” said police constable Gordon Meldrum. Meldrum had previously claimed research “proved” the existence of 10 human trafficking groups north of the border, and 367 organised crime groups with over 4000 members. “We had one case which was brought to court previously but was abandoned. My understanding is it was abandoned due to a lack of evidence, essentially.” Strange how the evidence seemed to disappear precisely when someone was asked to produce all these fantasy baddies, isn't it? 

It's not only Scotland where the trafficking hype falls flat though: investigation throughout the UK has comprehensively failed to find any supposed sex trafficking epidemic.

Not convinced by the evidence? Then consider this: criminalising sex workers and their clients removes the most reliable information sources police have for investigating abuses. Police don't have a great track record on this: In interviews by the Sex Workers Project with 15 trafficking survivors who experienced police raids, only one had been asked by law enforcement if she was coerced, and only after she was arrested. SWOP-NYC make this case clearly.

Criminalising sex work has been shown in Scotland to make criminal activity worse

Criminalisation has all kinds of effects on the behaviour of sex workers, but unfortunately, none of those effects are good. Fear of police forces sex workers to get into clients’ cars quickly, and possibly be unable to avoid dangerous attackers posing as clients. When vigilantes and police roam the pavements, sex workers wait until the wee hours to come out, making them more isolated and vulnerable to harm.

Such an approach can also result in a transfer of activity from streetwalking to other ways of getting money. High-profile crackdown results in repeated arrests of prostitutes, which translate to fines that sex workers, now burdened with criminal records, are unable to pay except by more prostitution or by fraud, shoplifting, and dealing drugs.

Take Aberdeen, for instance. From 2001 onward, the city had an established tolerance zone for sex workers around the harbour. That ended with passage of the Prostitution (Public Places) (Scotland) Act in 2007. In the following months the city centre experienced an influx of streetwalkers and an increase in petty crimes.

Quay Services, which operates a drop-in centre for streetwalkers, reported that sex workers became more afraid to seek assistance, and the number of women coming to the centre dropped to “just a handful”. There was also evidence that displacing sex workers led to more activity in the sex trade, not less – convictions for solicitation tripled.

This kind of ‘crime shuffling’ takes prostitution out of one area and dumps it on another. It only resembles an improvement if you fail to look at the full picture.

Prohibition never works

There is a lot of talk in the political sphere about the need for “evidence based policy”. This means rejecting approaches that are moralistic and manipulative. Sex workers have suffered the tragic consequences of prejudicial social attitudes that lead to bad policy. The prohibition approach has not worked. It will never work. The people who endorse this view are putting people in danger and should not be guiding public opinion any longer. Disliking sex work is not a good enough argument to justify criminalising it. Is there any public interest served by preventing adults from engaging in a consensual transaction for sexual services? No, there is not.

Bit like the war on drugs: making the business profitable only to criminals, awaiting the inevitably grim results, then claiming that it’s the drugs themselves, not the laws, wot caused it. Few reasonable people believe that line of argument when it comes to drugs. Why does anyone believe it when it comes to sex?

Moral disapproval is a bad basis for policymaking. I don't find the idea of taking drugs at all appealing, but I don't assume my own preferences should be the basis for law.

The condescension heaped on people who do sex work is embarrassingly transparent. All this mealy-mouthed, 'oh but we want to help them, really’. How’s that again? By saddling people with criminal records and taking away their children? Do me a favour.

As well as the happy prostitutes there are unhappy sex workers in need of support. Society should protect the unwilling and underage from sexual exploitation and provide outreach for those who need and want it. We already have laws and services for that. Maybe the laws should be more intelligently enforced and the services better supported. But prosecuting the victimless crimes does neither of these. It helps no one.

The potential existence of abuses does not mean such work should be automatically criminalised if for no other reason than doing so makes the lives of people in sex work worse, not better. Criminalisation is the very opposite of compassion. Rhoda Grant is hiding behind an "end demand" approach that will not achieve what she claims it will, but will punish sex workers and send those with already chaotic lives further into a downward spiral. If that isn't punishing them with no hope for change then I don't know what is.

It's time we started acting like grownups and stopped pretending that making something illegal makes it cease to exist.

This morning I awoke to find a claim published in the Mail that I was not a sex worker. 


It is a direct attack on my integrity as a writer, to claim that I lied. And I have been prepared.

When the case goes to trial, I will have to present evidence that I was a sex worker. Starting with this - an Archive.org snap of my first escorting ad from October 2003 (link NSFW).

(Readers of the first book may recall this was the session with the grumpy photographer I wrote about. As I have often said, it was that experience - being made to wear terrible lingerie, awkward poses, all the rest - that first made me think, 'hey, I should be blogging this.'

And if you read the third book, I made a reference to a restaurant on Old Compton Street that has the same name as my working name - that is, of course, Taro.)

I will also be presenting my bank records from 2003-04, showing the cash deposits from the money I earned as an escort, and tax records from the same years showing that this income was declared to HMRC and tax paid. Here is a sample:

 
I also have the notebook in which I recorded details of appointments, etc. In several instances I have been able to piece together entries from the notebook, deposits to my accounts, and the corresponding entries in the book. If pressed, I will name a client, but only as a last resort.

The Mail also claims I didn't own nice enough clothes so couldn't have been an escort!


That's from December 2003, and is the same red silk top I wore to meet the manager for the first time (as written about in the first book). The next is at Henley Regatta in July 2004, suit is from Austin Reed, the bracelet was a gift from a client.



The Mail claims I was in Sheffield when writing the blog, but I moved to London in September 2003 and started escorting in October, starting blogging a few weeks later. All of which is easy - trivial, even - to prove.

Oh, and the "former landlady in Sheffield, who did not wish to be named", where I supposedly lived for three years? Who apparently saw me in 'Oxfam jumpers'? Hmm... I lived one year in university accommodation (St George's Flats),  one year in a shared flat with an absentee landlord I never met (Hawthorne Road), and one year on my own in a house let through an agency (Loxley New Road). All well before moving to London. So either the landlady is lying about the timing of my tenancy and having met me, or (shock, horror) they made it up.

There's much more but it would be boring to put it all here. It's amazing to me the MoS made no effort at all to match anything they printed against things that are easy to find and in the public domain. But that's by the by, and will come out in due course.

It matters because this is a concerted and direct attack on my work as a writer. When I was anonymous, being real was my main - my only - advantage. The Mail on Sunday have made some frankly nonsense claims, and I will be going to town on this.

Because I know people do not trust the word of a sex worker, that is why I saved everything.

I look forward to the opportunity to rebut all claims in court. (The MoS claim the trial is expected "within weeks." In fact it is scheduled for June 2015.)

Do you remember when bloggers just sometimes did short posts about things they had enjoyed and just wanted to share them? I know, I am such a boomer*. Anyway, here is one of those, with a couple more to follow...

Entrada que trata la temática de las lenguas extintas o en peligro de extinción. ¿Por qué desaparecen los idiomas? ¿Existe alguna solución?

La entrada LENGUAS EXTINTAS O EN PELIGRO DE EXTINCIÓN se publicó primero en Nartran Translations.

Following our latest update on our preparations for the DMA (Digital Markets Act), we're sharing more details about what publishers can expect to see in regards to new search results in European Economic Area (EEA) countries, and how they can express interest in these experiences.

The last step of our migration to a mobile-first index will soon be complete: the small set of sites we've still been crawling with desktop Googlebot will be crawled with mobile Googlebot after July 5, 2024. Most websites do not need to do anything!

We're sharing more information about our new search experiences in South Africa, and how South African platforms can express interest and participate.

El BOE acaba de publicar la Resolución de 12 de julio de 2018, de la Subsecretaría, por la que se convocan exámenes para la obtención del título de Traductor-Intérprete Jurado. La fecha de la primera prueba ha sido fijada para el día 17 de septiembre de 2018 y para los siguientes idiomas: Albanés, árabe, armenio, […]

I was recently asked to translate a large Excel file containing 40,000+ rows. The total word count was not so big, about 50k new words. With this article I would like to share my experience and problems processing this translation in … Continue reading →

El Ministerio de Asuntos Exteriores convoca el examen de traductor jurado de 2017 en el BOE 61 de 13 de marzo de 2017. La espera se ha acabado. Sin embargo, la convocatoria de intérpretes jurados de...

The post CONVOCATORIA DEL EXAMEN DE TRADUCTOR JURADO 2017 appeared first on El Blog del Traductor Jurado.

La posible y cada vez más anunciada salida de Reino Unido de la Unión Europea, el llamado brexit, tiene consecuencias en todos los ámbitos. Para algunos es una catástrofe. Para otros, la liberación. Independientemente...

The post El brexit para los traductores jurados: ¿Qué consecuencias tiene? appeared first on El Blog del Traductor Jurado.

La Oficina de Interpretación de Lenguas del Ministerio de Asuntos Exteriores acaba de publicar la convocatoria de examen de traductor jurado 2018 en su web y en este artículo te damos todos los datos...

The post EXAMEN DE TRADUCTOR JURADO 2018 appeared first on El Blog del Traductor Jurado.

Taller a distancia de traducción de textos al inglés

coordinado por la Trad. Marita Propato

 Preinscripción y consultas: escribir a cursos@aati.org.ar

hasta el miércoles 11 de abril. Socios AATI*, socios FAT* y alumnos de traductorados: AR$ 420 No socios residentes en la Argentina: AR$ 650 Futuros profesionales: AR $ 340 Socios AATI* y socios FAT* residentes en el exterior: US$ 105 No socios residentes en el exterior: US$ 170 *Importe válido únicamente para socios con la cuota al día.

Nota para traductores certificados por la American Translators Association: La asistencia a este curso otorga puntos para el programa de educación continua (CE) de la ATA.

 

Trad. Marita Propato

VACANTES LIMITADAS

 

 

 

In this paper a line detection and segmentation technique is presented. The proposed technique is an improved version of an older one. The experiments have been performed on the training dataset of the ICDAR 2009 handwriting segmentation contest in order to be able to compare, objectively, the performance of the two techniques. The improvement between the older and newer version is more than 24% while the average extra CPU time cost is less than 200 ms per page.

This paper proposes a new approach to water flow algorithm for the text line segmentation. Original method assumes hypothetical water flows under a few specified angles to the document image frame from left to right and vice versa. As a result, unwetted image frames are extracted. These areas are of major importance for text line segmentation. Method modifications mean extension values of water flow angle and unwetted image frames function enlargement. Results are encouraging due to text line segmentation improvement which is the most challenging process stage in document image processing.

Due to both the widespread and multipurpose use of document images and the current availability of a high number of document images repositories, robust information retrieval mechanisms and systems have been increasingly demanded. This paper presents an approach to support the automatic generation of relationships among document images by exploiting Latent Semantic Indexing (LSI) and Optical Character Recognition (OCR). We developed the LinkDI (Linking of Document Images) service, which extracts and indexes document images content, computes its latent semantics, and defines relationships among images as hyperlinks. LinkDI was experimented with document images repositories, and its performance was evaluated by comparing the quality of the relationships created among textual documents as well as among their respective document images. Considering those same document images, we ran further experiments in order to compare the performance of LinkDI when it exploits or not the LSI technique. Experimental results showed that LSI can mitigate the effects of usual OCR misrecognition, which reinforces the feasibility of LinkDI relating OCR output with high degradation.

Responsive open learning environments (ROLEs) are the next generation of personal learning environments (PLEs). While PLEs rely on the simple aggregation of existing content and services mainly using Web 2.0 technologies, ROLEs are transforming lifelong learning by introducing a new infrastructure on a global scale while dealing with existing learning management systems, institutions, and technologies. The requirements engineering process in highly populated test-beds is as important as the technology development. In this paper, we will describe first experiences deploying ROLEs at two higher learning institutions in very different cultural settings. The Shanghai Jiao Tong University in China and at the “Center for Learning and Knowledge Management and Department of Information Management in Mechanical Engineering” (ZLW/IMA) at RWTH Aachen University have exposed ROLEs to theirs students in already established courses. The results demonstrated to readiness of the technology for large-scale trials and the benefits for the students leading to new insights in the design of ROLEs also for more informal learning situations.

Using pre-existing software components (COTS) to develop software systems requires the composition and adaptation of the component interfaces to solve mismatch problems. These mismatches may appear at different interoperability levels (signature, behavioural, quality of service and semantic). In this article, we define an approach which supports composition and adaptation of software components based on model transformation by taking into account the four levels. Signature and behavioural levels are addressed by means of transition systems. Context-awareness and semanticbased techniques are used to tackle quality of service and semantic, respectively, but also both consider the signature level. We have implemented and validated our proposal for the design and application of realistic and complex systems. Here, we illustrate the need to support the variability of the adaptation process in a context-aware pervasive system through a real-world case study, where software components are implemented using Windows Workflow Foundation (WF). We apply our model transformation process to extract transition systems (CA-STS specifications) from WF components. These CA-STSs are used to tackle the composition and adaptation. Then, we generate a CASTS adaptor specification, which is transformed into its corresponding WF adaptor component with the purpose of interacting with all the WF components of the system, thereby avoiding mismatch problems.

Feature modeling is an approach to represent commonalities and variabilities among products of a product line. Context-aware applications use context information to provide relevant services and information for their users. One of the challenges to build a context-aware product line is to develop mechanisms to incorporate context information and adaptation knowledge in a feature model. This paper presents UbiFEX, an approach to support feature analysis for context-aware software product lines, which incorporates a modeling notation and a mechanism to verify the consistency of product configuration regarding context variations. Moreover, an experimental study was performed as a preliminary evaluation, and a prototype was developed to enable the application of the proposed approach.

Visualization of search results is an essential step in the textual Information Retrieval (IR) process. Indeed, Information Retrieval Interfaces (IRIs) are used as a link between users and IR systems, a simple example being the ranked list proposed by common search engines. Due to the importance that takes visualization of search results, many interfaces have been proposed in the last decade (which can be textual, 2D or 3D IRIs). Two kinds of evaluation methods have been developed: (1) various evaluation methods of these interfaces were proposed aiming at validating ergonomic and cognitive aspects; (2) various evaluation methods were applied on information retrieval systems (IRS) aiming at measuring their effectiveness. However, as far as we know, these two kinds of evaluation methods are disjoint. Indeed, considering a given IRI associated to a given IRS, what happens if we associate this IRI to another IRS not having the same effectiveness. In this context, we propose an IRI evaluation framework aimed at evaluating the suitability of any IRI to different IR scenarios. First of all, we define the notion of IR scenario as a combination of features related to users, IR tasks and IR systems. We have implemented the framework through a specific evaluation platform that enables performing IRI evaluations and that helps end-users (e.g. IRS developers or IRI designers) in choosing the most suitable IRI for a specific IR scenario.

We investigate ambiguity for symmetric difference nondeterministic finite automata. We show the existence of unambiguous, finitely ambiguous, polynomially ambiguous and exponentially ambiguous symmetric difference nondeterministic finite automata. We show that, for each of these classes, there is a family of n-state nondeterministic finite automata such that the smallest equivalent deterministic finite automata have O(2ⁿ) states.

RDF data can be analyzed with various query languages such as SPARQL. However, due to their nature these query languages do not support fuzzy queries that would allow us to extract a broad range of additional information. In this article we present a new method that transforms the information presented by subject-relationobject relations within RDF data into Activation Patterns. These patterns represent a common model that is the basis for a number of sophisticated analysis methods such as semantic relation analysis, semantic search queries, unsupervised clustering, supervised learning or anomaly detection. In this article, we explain the Activation Patterns concept and apply it to an RDF representation of the well known CIA World Factbook.

Ontology evaluation is an integral and important part of the ontology development process. Errors in ontologies could be catastrophic for the information system based on those ontologies. As per our experiments, the existing ontology evaluation systems were unable to detect many errors (like, circulatory error in class and property hierarchy, common class and property in disjoint decomposition, redundancy of sub class and sub property, redundancy of disjoint relation and disjoint knowledge omission) as defined in the error taxonomy. We have formulated efficient algorithms for the evaluation of these and other errors as per the extended error taxonomy. These algorithms are implemented (named as OntEval) and the implementations are used to evaluate well-known ontologies including Gene Ontology (GO), WordNet Ontology and OntoSem. The ontologies are indexed using a variant of already proposed scheme Ontrel. A number of errors and warnings in these ontologies have been discovered using the OntEval. We have also reported the performance of our implementation, OntEval.