Use of Personal Items Could Present Problems

Hybrid algorithms for recommending new items in personal TV

Recommending TV programs in the interactive TV domain is a difficult task since the catalog of available items is very dynamic, i.e., items are continuously added and removed. Despite recommender systems based on collaborative filtering typically outperform content-based systems in terms of recommendation quality, they suffer from the new item problem, i.e., they are not able to recommend items...

The Material - Experiential Asymmetry in Present Bias : Why Material Items Lead to Less Present Biased Preferences

Consumers spend their money to acquire both material products and experiences. While much can be said about differences between material and experiential purchase, little is known about consumers’ impatience towards such products. The authors propose that these items are different in terms of how willing consumers are towards delaying them, and also in how steeply this discounting declines over...

Net Present Value of Cash Flows in Single Machine and Flow Shop Scheduling Problems

While a great portion of the scheduling literature focuses on time-based criteria, the most important goal of management is maximizing the profitability of the firm. In this paper, the net preset value criterion is studied taking account of linear time-dependent cash flows in single machine and flow shop scheduling problems. First, a heuristic method is presented for the single machine scheduli...

Could Spontaneous Retroperitoneal Haematoma Present with Scrotal Mass?

BACKGROUND Retroperitoneal haematoma could be caused by different factors. It is increasing due to an increase in the use of antithrombotic and anticoagulant therapy. Diagnosis of retroperitoneal haematoma forms a big challenge in daily clinical practice. Patients with retroperitoneal haematoma could present with leg paresis, abdominal pain, shock or abdominal compartment syndrome. Retroperiton...

[Present-day problems in toxicology].