Approximate Rank-Detecting Factorization of Low-Rank Tensors

We present an algorithm, AROFAC2, which detects the (CP-)rank of a degree 3 tensor and calculates its factorization into rank-one components. We provide generative conditions for the algorithm to work and demonstrate on both synthetic and real world data that AROFAC2 is a potentially outperforming alternative to the gold standard PARAFAC over which it has the advantages that it can intrinsically detect the true rank, avoids spurious components, and is stable with respect to outliers and non-Gaussian noise

Learning with Algebraic Invariances, and the Invariant Kernel Trick

When solving data analysis problems it is important to integrate prior knowledge and/or structural invariances. This paper contributes by a novel framework for incorporating algebraic invariance structure into kernels. In particular, we show that algebraic properties such as sign symmetries in data, phase independence, scaling etc. can be included easily by essentially performing the kernel trick twice. We demonstrate the usefulness of our theory in simulations on selected applications such as sign-invariant spectral clustering and underdetermined ICA

“You are not my boss!”: Managing inter-organizational collaboration in German ground handling operations

While inter-organizational coordination among firms in networks has become a widespread phenomenon and the governance of inter-organizational networks has garnered considerable attention in the management literature, the repercussions of the network form for managing and organizing work remain a considerable gap in the literature. Building on Gittell’s concept of relational coordination, we explore the inter-organizational work collaboration in four German airports’ ground handling operations. By zooming-in on ramp agents’ boundary spanning work role, our comparative study illustrates whether and how a collaboration in inter-organizational work processes is brought about in practice. Our findings reveal the various practices ramp agents deploy in order to handle the tensions emerging from divergent organizational jurisdictions and the requirements for collaboration. We also illuminate how the field-level context influences inter-organizational collaboration by setting conditions such as workload and time restrictions in distributed service delivery

Die Wirkung von Kundenbindungsmaßnahmen auf das Einkaufsverhalten im Einzelhandel : Treueprogramme versus Kundenkarten im deutschen Lebensmitteleinzelhandel

This empirical study will show how bonus programs, particularly loyalty programs and loyalty cards, have an impact on the purchasing behavior of consumers in the german food retail trade. The study was carried out by students of the Bachelor degree program in Business Administration from the University of Applied Sciences Duesseldorf. The study results are based on two study parts: firstly, there has been an oral survey of consumers in the food retail business. To study the effect of loyalty programs and loyalty cards on the purchasing behavior and customer loyalty will be found in the food retail trade. In addition, several forces were conducted expert interviews with managers who are intensively engaged in their professional environment with customer loyalty programs. In this case was of interest to which customer loyalty measures are carried out with what success and how they affect the purchasing behavior of consumers. It should also found out what at the consumers better works: loyalty programs or customer cards. In conclusion, it is fair to say that bonus programs are suitable as a tool for customer loyalty and a high impact on the purchasing behavior and attitudes of consumers in the german food retail trade. It became clear that the success of a bonus program primarily depends on the design of programs by the retail trader. An interesting bonus program with attractive premiums is critical to the consumers.customer loyalty, customer loyalty programs, loyalty programs, loyalty cards, Payback, Kundenbindung, Kundenbindungsmaßnahmen, Treueprogramme, Kundenkarten

Tidstypiske oppfatnings- og handlingskriser hos ungdommer

Forfatteren argumenterer for at skolen i dag er mer frigjort fra gamle tradisjoner og normer, men samtidig er elevene overgitt til flere valg og et økende krav til selvstendighet. Ungdommens forventninger er ikke alltid realistiske, hvilket kan medføre opplevelse av skam om de møter motgang. Det blir derfor viktig for ungdommen å utvikle det forfatteren kaller ”jeg-avgrensing” og ”jeg-distanse”, og at skolene tilbyr en varig interaksjonsramme

Tidstypiske oppfatnings- og handlingskriser hos ungdommer

Forfatteren argumenterer for at skolen i dag er mer frigjort fra gamle tradisjoner og normer, men samtidig er elevene overgitt til flere valg og et økende krav til selvstendighet. Ungdommens forventninger er ikke alltid realistiske, hvilket kan medføre opplevelse av skam om de møter motgang. Det blir derfor viktig for ungdommen å utvikle det forfatteren kaller ”jeg-avgrensing” og ”jeg-distanse”, og at skolene tilbyr en varig interaksjonsramme

Mature Crossbred Cow Productivity Among Groups Containing Zero, One-Fourth and One-Half Brahman in Spring and Fall Calving Systems

Animal Breeding and Reproductio

Session 7: THE DICTIONARY GLOSSARY LOOKUP MADE EASY

Summary Most of the work on the dictionary problem for machine translation has consisted of attempts to reduce the amount of information involved, thus bringing the problem within the capabilities of currently available or soon-to-be-available computing equipment. This paper presents a technique for handling the problem with currently available computing equipment and without the complexities of information compression. In essence, the approach is to compile a glossary of forms from the current text and then to retrieve information about each from the dictionary as the information is needed in the translation process. The general role of the dictionary in machine translation is well understood. Its main function is to store information about the source language which the computer will need when translating text. Accompanying the dictionary must be a method for retrieving information that pertains to each word in text. The method must provide complete and accurate retrieval at a rate compatible with the rest of the translation process. More specific questions about dictionary organization and contents are not so clearly understood. We hope in the following to clarify some problems of dictionary organization that have resulted from attempts to implement dictionary operations on digital computers. To simplify the description we assume that one machine system (a high-speed computer) does dictionary lookup as a part of translation. The operations used for storage and retrieval must be defined for all words in the language, but whether the information file itself resembles anything the linguist recognizes as a dictionary, word list, glossary, etc., is immaterial. The important point is that the linguist should be able to enter modifications and retrieve information in a format with which he is familiar. In short, the machine should work for the linguist, not the reverse. Most students of the dictionary problem in machine translation have assumed that only random access to dictionary entries can meet the needs of a machine translation system. Attempts to implement dictionary operations based on this assumption have led to the conclusions either that computer storage capacity must be increased 32